Job Description

• Design and implement event-driven architecture solutions for processing large datasets efficiently 
• Develop high-performance, highly available, and scalable distributed systems, adhering to best practices and architectural principles 
• Utilize strong knowledge of data structures, algorithms, and performance optimization techniques to design systems for optimal performance, scalability, and availability 
• Lead the implementation of cloud-native solutions leveraging AWS services and service-oriented architecture principles 
• Leverage expertise in Kotlin and the Spring Boot framework to develop robust and maintainable applications 
• Contribute to architectural discussions and decisions, offering insights and recommendations based on expertise and experience 
• Create comprehensive technical documentation, including design specifications, user guides, and best practices  
• Collaborate with cross-functional teams to troubleshoot and resolve technical issues, ensuring smooth operation of systems and applications 

Qualifications

• Experience in building event-driven architecture, processing large datasets, relational & No-SQL databases 
• Strong hands-on experience in building high-performance, highly available, and scalable distributed systems 
• Strong knowledge of data structures, algorithms, and designing for performance, scalability, and availability 
• Strong expert experience in AWS cloud stack and service-oriented architecture 
• Experience in Java, Kotlin and Spring Boot framework 
• English – Upper-Intermediate  

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Job Description

We are seeking a talented Mobile Application Developer to spearhead the development of our advanced communications app. The ideal candidate will possess extensive experience in both iOS and Android app development, emphasizing secure communication technologies. This role requires a deep understanding of cross-platform solutions to ensure a seamless user experience across different devices.

What you will do:

• Design and develop a high-performance Android application, with plans to extend functionality to iOS, featuring push-to-talk (PTT), Voice over IP (VOIP), and chat capabilities.
• Ensure the application’s security protocols adhere to the highest standards, with a focus on cross-platform compatibility.
• Collaborate with cross-functional teams to define, design, and ship new features across both Android and iOS platforms.
• Continuously discover, evaluate, and implement new technologies to maximize development efficiency, particularly in a cross-platform context.
• Manage the entire app lifecycle (concept, design, test, release, and support) for both Android and iOS versions.
• Release applications to the Android Play Store and Apple App Store, overseeing their lifecycle across both platforms.

What you will accomplish within the first six months in this role:

• Work directly with the engineering team to finalize requirements and architect a backend suitable for both Android and iOS applications.
• Deliver a secure communication application, ensuring seamless operation and security on both platforms.
• Publish the app on both the Play Store and the Apple App Store.

Qualifications

Must Haves:

• 15+ years of experience in mobile app development, including significant experience in both Android and iOS platforms.
• Proficient in Java, Kotlin, and Swift/Objective-C for iOS development.
• Strong understanding of both Android SDK and iOS frameworks, covering different versions and capabilities.
• Experience with UI design principles and best practices for both Android and iOS applications.
• Knowledge of the open-source ecosystems for both Android and iOS, and the libraries available for common tasks.
• Familiarity with RESTful APIs to connect applications to back-end services, with an emphasis on cross-platform functionality.
• Expertise in secure app design - based on a zero-trust model - and encryption standards applicable to both Android and iOS.
• Strong knowledge of UI design principles, patterns, and best practices, tailored to each platform.
• Experience with offline storage, threading, and performance tuning for both Android and iOS.
• Proficient understanding of code versioning tools, such as Git, and Git CI/CD Pipelines, with experience in managing cross-platform development workflows.

Nice to Haves:

• Proven track record of successful apps on both Android and iOS platforms.

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Job Description

Cash Security is a security-enabling engineering organization focused on scaling security as a discipline through innovation. As a security team, Security Governance develops, implements and promotes frameworks and standards aimed at securing our customer’s data, giving privacy and security considerations a voice across the organization, and simplifying Cash’s security-related regulatory and compliance obligations.

Governance Partners act as a bridge between the Cash App functional area they support and Leadership across security, engineering, and compliance teams to drive security enablement. The Security Governance Partner for Cash App Machine Learning and Data Science (ML/DS) works directly with the teams that build Cash App’s machine learning pipelines and infrastructure and the Cash data scientists to identify and communicate constraints and to evaluate potential solutions, while partnering closely with MLDS Security Engineering to communicate requirements and shape the security posture of the MLDS organization.

You will:

• Act as a security domain expert in partnership with Compliance, Legal, and Engineering
• Collaborate deeply across roles and functions, with Security Engineering, Machine Learning Engineering and Modeling, and Data Science/Business Intelligence
• Identify, prioritize and balance security efforts with other objectives
• Help Cash automate governance and compliance functions and develop reusable tools for common tasks using scripting languages like Python or data tools like Prefect
• Participate in technical design discussions, evaluate security properties of systems and services, drive risk decisions, and influence technical architecture
• Understand challenges and roadblocks to achieving the desired security posture, and push requirements to Security Engineering to drive long-term change
• Develop, implement and promote security standards and frameworks
• Interpret and communicate security and compliance constraints to key stakeholders
• Monitor applicable changes to security and privacy related laws, regulations, and industry standards, with an eye towards Generative AI and other forward-looking technologies

Qualifications

You have:

• 3+ years of experience leading projects or programs in a security environment
• 5+ years working in a security-focused role in a technology-heavy industry
• Proficiency with at least one programming language (e.g. Python, Kotlin, Java)
• Conceptual understanding of machine learning and data science tools and processes
• Solid technical background with cloud computing architectures and security patterns
• Ability to drive alignment and change in a matrixed-environment with minimal supervision
• Boundless curiosity, persistence and a grounded approach to getting things done
• Process orientation and an efficiency mindset to keep the organization unblocked and accountable to security
• Working knowledge of one or more relevant compliance regulations such as SEC/FINRA, CCPA, CPRA, GDPR, PCI DSS, SOX

Tech stack we use and teach:

• Java and Kotlin 
• Python
• AWS, GCP, and Kubernetes
• SQL, Snowflake
• Apache Spark
• DynamoDB, Kafka, Apache Beam and Google DataFlow
• Tableau, Airflow, Looker, Mode, Prefect
• Tecton
• Jupyter notebooks 

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Job Description

Cash App has grown rapidly to 70+ million users moving billions of dollars daily. To support this, we are building out Trust — a new Platform organization responsible for product experiences aimed at promoting the health of the increasingly complex Cash App ecosystem. Trust works to improve Cash App access for our customers, while limiting access for bad or unauthorized users by detecting and preventing improper use across all of our core product areas. The teams under Trust creating these mission critical services and products include Identity, Access, Risk Controls and Support Automation. We appreciate broad perspectives, a willingness to dive deep, and a readiness to work collaboratively across many disciplines (including product, design, operations, legal, data science, ML).

About Access

The Access team handles all things authentication, authorization, and device management at Cash. We ensure that our millions of customers can access Cash App safely and reliably while minimizing barriers to entry to the financial system. In addition to refining the core authentication customer experience, we support Cash App’s expansion into new use cases and markets with reliable, well-designed access control primitives that empower engineering teams across the company. 

This team is also responsible for identifying fraudulent activities and bot attacks to mitigate hacking and prevent account compromise. The team builds tools to collect fraudulent signals, detect fraud patterns, and automatically mitigate attacks.

As a member of the Cash App Trust Access team, you will:

• Design, build, and operate the APIs and services that power Cash authentication and authorization 
• Contribute to the safety of our customers by ensuring meaningful control over account security
• Evolve our architecture to scale with growth in customers and developers, working across large monolith codebases and microservices
• Collaborate with product management and design to develop new, high-impact experiences 
• Build incrementally, test everything, and deploy daily
• Work on the live support rotation to keep our systems running well

Qualifications

You have:

• 8+ years experience building and operating quality software
• Technical initiative and leadership on previous projects
• Growth mindset and a healthy comfort with ambiguity
• Strong communication skills and customer empathy
• Contributing to the growth of our development capabilities through leading, mentoring and supporting fellow engineers

You may also have:

• Experience with or interest in product security and authN/authZ standards
• Experience working in large codebases and breaking apart monoliths
• Experience working in a distributed team

Technologies we use and teach:

• Java, Kotlin, Golang
• HTTP, JSON, gRPC, Protocol Buffers
• MySQL, Hibernate, DynamoDB
• Kafka and event-driven architecture
• DataDog, Prometheus
• AWS, Kubernetes

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Job Description

Cash App has grown rapidly to 70+ million users moving billions of dollars daily. To support this, we are building out Trust— a new Platform organization responsible for product experiences aimed at promoting the health of the increasingly complex Cash App ecosystem. Trust works to improve Cash App access for our customers, while limiting access for bad or unauthorized users by detecting and preventing improper use across all of our core product areas. The teams under Trust creating these mission critical services and products include Identity, Access, Risk Controls and Support Automation. We appreciate broad perspectives, a willingness to dive deep, and a readiness to work collaboratively across many disciplines (including product, design, operations, legal, data science, ML).

About Support Product

We want customer support to be the reason why people trust Cash App with their money. We want to build lasting trust with customers by making it easier to get helpful and caring support that resolves their issues. Support Product is an engineering team within Trust that is responsible for building Cash App’s customer facing support experiences as well as internal agent tooling. We blend cutting edge automation throughout our highly scalable applications. 

As an engineer on Support Product’s Agent Tooling team you will be part of our distributed cross-functional product development team of Server Engineers, Mobile Engineers, Designers, Machine Learning Engineers and Modellers to build best in class agent tools that make it easier for our agent to find the information and take the actions needed to fully resolve more of our customer issues.

As a member of the Cash App Support Product team, you will:

• Design, build and support the core systems for Support Product on our Trust team
• Work in small, cross functional project teams to iteratively deliver products to production
• Creatively solve challenging technical problems at scale
• Influence the technical direction of the Support’s technology stack
• Be on a team that is part of a 24/7 on-call support roster for our services
• Support your colleagues to help grow the product and the team
• Contribute to team roadmap discussions and planning (at Cash App each team is responsible for their own roadmap)
• Interact with cross-functional partners from the Trust team as well as other parts of Cash App

Qualifications

You have:

• 5+ years working on complex systems and delivering quality software
• Well-developed curiosity and enjoy building creative solutions to complex problems
• Worked on systems where data consistency and availability is required
• Shown technical initiative on previous projects and an interest in being involved from ideation through implementation
• Demonstrated experience working collaboratively in cross-functional teams
• Expertise in the full software development life cycle
• Nice to have: experience with TypeScript and React

Technologies we use and teach:

• Kotlin, Java
• HTTP, JSON, gRPC, and Protocol Buffers
• MySQL and noSQL databases
• Event-driven architecture
• DataDog, Prometheus
• AWS

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Job Description

The Underwriting & Credit organization’s mission is to redefine credit and liquidity through simple, fair, and accessible credit solutions that build financial health and resilience. This team builds and integrates ML solutions for evaluating customer cash flow risk including risk of default on credit obligations, risk of fraud & abuse of loans and other situations where Cash App advances funds or provides liquidity to customers. We support multiple products in Cash. 

As a member of the team, you will design, build and launch credit products and features. We build our services over Cash App's ever-evolving infrastructure, and as a senior engineer on the team, you will embrace these changes and scale our tech stack to promote future evolvability. This is an exciting opportunity to make a direct, tangible impact on our product and work on projects that are critical to the business’s success. You'll be reporting to an Engineering Manager and working on a distributed team with members in the USA and Canada.

You will:

• Be responsible for designing, building and managing the distributed services for Underwriting & Credit Cash App
• Creatively solve challenging technical problems at scale
• Demonstrate high code quality, good test coverage and other engineering best practices 
• Work on impactful, multi-person projects that cross Engineering team boundaries
• Collaborate with product, analysts, and modelers on planning and implementing frictionless user experiences 
• Work cross-functionally with product, platform, security, and data engineering teams to unlock new machine learning applications
• Have autonomy to research and achieve outcomes with support when you need it
• Contribute to the growth of our development capabilities through mentoring and supporting fellow engineers

Qualifications

You have:

• 6+ years of backend software development experience in building and maintaining applications in any mainstream language such as: Java, JavaScript, Python, Kotlin, Ruby, Go, Swift, C++
• Enthusiasm about solving business problems with technology and can take ownership of an end-to-end solution
• Passion about continuously learning new technologies, frameworks, and services
• Possess an execution mindset and the ability to deliver with cross-functional teams that are globally distributed
• Serious about testing and have experience with automated testing frameworks
• Passion for Cash App's mission of economic empowerment
• Experience of ML model-related experience is a bonus
• Experience with common technologies, for example, Kafka, Redis, Cassandra is a bonus
• A keen interest in advancing Cash App's vision of building for economic empowerment

Tools we use and teach:

• Python, Java, Kotlin
• Onnx/PyTorch, LightGBM/XGBoost
• Kubernetes, AWS
• Datadog, SumoLogic
• Hibernate, MySQL, Cassandra DB, DynamoDB
• HTTP, JSON, gRPC, Protocol Buffers
• Kafka, event-driven microservice architecture

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Job Description

When our sellers make a sale, the Square Banking team helps them manage and understand their business finances with products that include Checking, Savings, Loans and Credit Cards to smooth out cash flow. With this suite of products, we ensure that our customers get access to the funds they need when they need them, and that they can always understand and control where their money is going. We partner with platform and infrastructure teams to move billions of dollars each year on behalf of our sellers.

We are seeking a Mobile Engineering Manager to lead our Banking Mobile team. This team is responsible for building and maintaining mobile applications for our sellers to manage their finances on the go. The ideal candidate will have experience leading a team of senior iOS and Android engineers and collaborating with product managers, designers, and other engineering managers to create a cohesive mobile roadmap.

The engineering team is composed of iOS and Android engineers. Our projects leverage design-driven decisions to deliver features across Square’s mobile applications. We also talk directly to existing and prospective merchants about their needs and pain to identify opportunities to improve their experience. 

Qualifications

You will:

• Partner with Product Manager and Design to develop new banking products for our sellers

• Define and prioritize the technical roadmap for the team

• Provide technical guidance and uphold technical standards for systems and applications

• Manage and support a team of 6-10 engineers, including staff and senior engineers

• Collaborate with other managers and senior leaders to ensure alignment across the organization

You have:

• 2+ years of people management experience leading a team of mobile engineers

• Strong mobile development background before coming into management

• BS/BA degree or equivalent experience in lieu of a degree

• Excellent communication skills and ability to partner with cross functional teams

Technologies we use and teach:

• Kotlin and Swift for development, leveraging Square’s modern open source library, Workflow

• Espresso and Snapshot for testing

• Protocol buffers for network transport

• Gradle for our build environment

• Also exposure to LeakCanary, RXJava, Dagger, Mortar, and Okhttp among others

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Job Description

• Design and implement event-driven architecture solutions for processing large datasets efficiently 
• Develop high-performance, highly available, and scalable distributed systems, adhering to best practices and architectural principles 
• Utilize strong knowledge of data structures, algorithms, and performance optimization techniques to design systems for optimal performance, scalability, and availability 
• Lead the implementation of cloud-native solutions leveraging AWS services and service-oriented architecture principles 
• Leverage expertise in Kotlin and the Spring Boot framework to develop robust and maintainable applications 
• Contribute to architectural discussions and decisions, offering insights and recommendations based on expertise and experience 
• Create comprehensive technical documentation, including design specifications, user guides, and best practices  
• Collaborate with cross-functional teams to troubleshoot and resolve technical issues, ensuring smooth operation of systems and applications 

Qualifications

• Experience in building event-driven architecture, processing large datasets, relational & No-SQL databases 
• Strong hands-on experience in building high-performance, highly available, and scalable distributed systems 
• Strong knowledge of data structures, algorithms, and designing for performance, scalability, and availability 
• Strong expert experience in AWS cloud stack and service-oriented architecture 
• Experience in Java, Kotlin and Spring Boot framework 
• English – Upper-Intermediate  

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Job Description

AboutTrust

Cash App has grown rapidly to 70+ million users moving billions of dollars daily. To support this, we are building out Trust — a new Platform organization responsible for product experiences aimed at promoting the health of the increasingly complex Cash App ecosystem. Trust works to improve Cash App access for our customers, while limiting access for bad or unauthorized users by detecting and preventing improper use across all of our core product areas. The teams under Trust creating these mission critical services and products include Identity, Access, Risk Controls and Support Automation. 

We appreciate broad perspectives, a willingness to dive deep, and a readiness to work collaboratively across many disciplines (including product, design, operations, legal, data science, ML).

About Risk Controls

Risk Controls is focused on how to make Cash App safer by improving how we monitor, report, and act on misuse of the platform without blocking authentic customers. The team is involved in both platform and customer-facing projects: infrastructure that determines how to restrict customer activity to limit risk while providing equitable access, features to improve the customer experience for those who have been restricted. We want to create systems that are flexible, explainable, and easy to use, for ourselves, our partners, and our customers.

As a Software Engineer on Trust Risk Controls, you will:

• Design, build, and operate the systems that control restrictions on customers and their activity, with a focus on iteration, maintainability, and scalability

• Collaborate cross-discipline and cross-team to identify opportunities that will improve the safety and security of Cash App

• Investigate issues across complex systems to develop the right infrastructure and experiences: build the short-term solutions to unblock essential requirements and the long-term solutions to set up future success

• Support and mentor your colleagues to help grow the product and the team

• Participate in the on-call support roster for our services

Qualifications

You have:

• 8+ years of industry experience

• Demonstrated technical initiative and leadership on previous projects and an interest in being involved from ideation through implementation

• A team-oriented approach that balances personal goals with developing and supporting your peers

• Enthusiasm for working collaboratively across many disciplines (including product, design, operations, legal, data science, ML)

• Curiosity that inspires you to dig into issues in intricate systems and find a path to a solution

• A genuine commitment to understanding the customer impact of your decisions

Even better:

• Experience with product risk or security

• Experience working in large codebases and breaking up monoliths

Technologies we use and teach:

• Kotlin, Java

• HTTP, JSON, gRPC, and Protocol Buffers

• MySQL and noSQL databases

• Event-driven architecture

• DataDog, Amplitude

• AWS

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Job Description

Cash is building the most relatable, instantly available, and universally accessible financial app in the world. The Trust organization's mission is to maximize trust and expand access to Cash App's ecosystem.

As an Engineering Manager, you will be responsible for technical architecture, ensuring collaboration across a multitude of disciplines, and providing coaching and mentorship to your team and peers. You will drive the team's vision and roadmap alongside product management and the Cash App leadership team.
 

About Support Product

The Support Product Team is a cross functional product delivery team within Trust. We are responsible for building Cash App’s customer facing support experiences and the tools our customer support advocates use to help customers with their inquiries. Our mission is to build lasting trust with customers by making it effortless to get helpful, caring support. In Support Product we build highly available and scalable, Machine Learning driven products that integrate with the broader Cash App ecosystem to help customers solve their problems. Where we can’t solve a customer’s problem through automation, we provide tools and integrations to hand them over to our team of support advocates.

The team currently consists of server engineers, designers, and product management, machine learning modelers and applied machine learning engineers located in Australia and the United States.

As an Engineering Manager, you will build teams, products, and services. You will be responsible for technical architecture, growing the team, ensuring collaboration across a multitude of disciplines and providing support to individuals through your mentorship and leadership skills.

You Will:

• Scope, build, and scale mission-critical products, systems, and services that have an immediate impact on our customers

• Build a world-class team by hiring exceptional talent, coaching and developing engineers, cultivating pragmatic engineering decision-making, and leveraging your technical expertise to constantly raise the bar

• Define your team’s vision and roadmap by thoroughly understanding your customers’ needs in collaboration with product management, design, data science, and adjacent engineering teams

• Collaborate with leaders across product management, design, data science, and adjacent engineering teams to shape strategy across the organization and company

• Creatively solve challenging technical problems at scale

• Foster ownership, inclusiveness, accountability, pragmatism, and urgency in the team

• Do whatever needs to get done to help your team execute. This could mean writing code, planning a team offsite, or covering an oncall shift

Qualifications

• Must be located in the Pacific Time Zone

• 8+ years working on complex systems and delivering quality software

• 2+ years experience directly managing engineers (including providing mentorship, feedback, and investing in the career growth of your team members)

• Well-developed curiosity and enjoy building creative solutions to complex problems

• Previous success prioritizing urgency, excellence, and delivery in a fast-paced and high-growth environment

• A history of healthy collaboration with product managers, engineers, and other engineering managers on developing roadmaps and executing against them

• Strong sense of ownership, accountability and autonomy

• Strong written and verbal communication skills

Technologies we use and teach:

• Java, Kotlin

• JUnit, Hibernate, Guice

• HTTP, JSON, gRPC, and Protocol Buffers

• Datadog

• MySQL

• Amazon Web Services

• Kafka and event driven architecture

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Job Description

AboutTrust

Cash App has grown rapidly to 70+ million users moving billions of dollars daily. To support this, we are building out Trust — a new Platform organization responsible for product experiences aimed at promoting the health of the increasingly complex Cash App ecosystem. Trust works to improve Cash App access for our customers, while limiting access for bad or unauthorized users by detecting and preventing improper use across all of our core product areas. The teams under Trust are creating these mission-critical services and products include Identity, Access, Risk Controls and Support Automation. We thrive on diverse perspectives, innovative thinking, a willingness to dive deep, and a readiness to work collaboratively across many disciplines (including product, design, operations, legal, data science and ML).

About the Authentication Team

The Access Authentication team handles all things authentication at Cash App. We ensure that our millions of customers can conveniently access their finances safely and reliably. In addition to implementing and refining the core authentication customer experiences, like the customer login and account recovery flows, we support Cash App's expansion into new use cases with reliable, well-designed access control primitives that reduce customer exposure to risk and fraud.

Our past successes include pioneering seamless authentication experiences that have reduced the time it takes customers to log in by more than 50%. Looking ahead, we are excited to tackle new challenges such as expanding our authentication methods to support emerging technologies.

As a member of the Cash App Trust Authentication team, you will:

• Design, build, and operate the APIs and services that power Cash App's authentication flows
• Contribute to the safety of our customers by ensuring meaningful control over account security
• Evolve our architecture to scale with growth in customers and developers, working across large monolith codebases and microservices
• Collaborate with product management and design to develop new, high-impact experiences
• Build incrementally, test everything, and deploy daily
• Work on the live support rotation to keep our systems running well

Qualifications

You Have:

• 8+ years experience building and operating quality software
• Technical initiative and leadership on previous projects
• Growth mindset and a healthy comfort with ambiguity
• Strong communication skills and customer empathy
• Experience contributing to the growth of our development capabilities through leading, mentoring and supporting fellow engineers

Even better:

• Experience with or interest in authN/authZ standards or product security
• Experience working in large codebases and breaking apart monoliths
• Experience working in a distributed team

Technologies we use and teach:

• Java, Kotlin, Golang
• HTTP, JSON, gRPC, Protocol Buffers
• MySQL, Hibernate, DynamoDB
• Kafka and event-driven architecture
• DataDog, Prometheus
• AWS, Kubernetes

This is a remote role.

#LI-Remote

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Job Description

We’re looking for backend engineers for multiple teams inside the Merchant group. Our group comprises 10 teams touching Acquisition, Onboarding, Operations, Growth, Retention, and Integrationswith our Merchants. These are cross-functional teams built with different skill sets, and we expect product engineers to collaborate with Data, Design and Product, ensuring we’re fulfilling our Merchants' needs.

Merchant products make Wolt an integral part of our Merchants' daily lives. We build tools and automation that are useful, efficient, reliable, and delightful to use. Our products are built around self-service, which helps us keep trust at the core of our partner relationships. If that's something that gets you excited, don't hesitate to drop in your application.

The main stack is Kotlin.

All in all, you'd be part of a team that improves the Wolt experience by helping our merchants serve more customers faster while enabling them to focus on things that are the most important. If that's something that gets you excited, don't hesitate to drop in your application.

Cool stuff about our teams:

Ownership: Observability and ownership from Kubernetes upwards are very much what we live and breathe. We handle the whole development process (business logic, testing, database & data streaming, CI/CD, analytics, cloud) ourselves in an autonomous manner. Don’t worry, we’re not alone: We have support from central teams when we need help.

Technology: We use modern tools and technologies. Current stack in use: Kotlin (Spring Boot, Ktor), Python (Flask & FastAPI), TypeScript, React, MongoDB, PostgreSQL, Kafka, GitHub Actions, Jenkins, AWS, Docker and Kubernetes.

Autonomy: We make the decisions as a team and group of teams! We are free to choose the technology stack and tools and make architectural decisions together. No top-down decisions!

Growth: There is a lot of room for learning, teaching and growing together. We will support you with the tools and materials you need. 

Creativity: We’re building lots of new stuff with minimal technical debt, so you can focus on developing new features.

Flexibility: You can choose whether you want to work from home, from the office or hybrid. It’s up to you and we don’t monitor people. We have a dedicated relocation partner to help you move to Finland. If you are currently living in Estonia or Sweden there is no need for you to relocate should you want to work from home but we will help you if you do want to move.

Diversity: We have different people with different backgrounds. Cultivating diversity and maintaining different opinions is the key to our success.    

Impact: Want to see the impact of your work? We provide our merchants with innovative tools and systems to become more and more efficient and successful, and with that our customers would also get a better experience when ordering with Wolt. We simply make it win-win for everyone!

????This role can be based in one of our tech hubs in Helsinki or Stockholm. Relocation from outside the EU is not available for this role.

Qualifications

Hands-on: We are looking for people who have3-6 years of experiencebuilding high-quality software. This can include working with Apps, APIs and integrations, handling the whole development cycle all the way to production. Having said that, seniority at Wolt is measured by skills, not the number of years on your CV.

Skilled: We want you to be proficient with Kotlin on the backend. We find expertise in other JVM backend languages like Java and Scala genuinely relevant as a starting off point for learning Kotlin. 

Communicator & collaborator: We work closely with our teammates and having a good connection with team members is essential. We understand that everyone has their own unique way of communicating with others. We expect you to be yourself, express your opinions, and work together with the rest of the team.

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Job Description

• Be part of a highly motivated cross-functional team, which focuses on the expansion of our broker business
• Build and run one of the fastest growing neo-brokers in Europe
• Get to work on cutting edge technology and be part of modern software development practices (e.g. agile and self-sufficient teams, continuous integration and deployment, test automation, cloud-based infrastructure and tooling).

Qualifications

• A university degree in a relevant field of study (e.g. computer science, engineering, sciences, ...) or a comparable qualification.
• Exposure and/or interest in our tech stack: Kotlin, Java, GraphQL, Docker, Spring Boot, AWS, Terraform
• Previous experience with GDPR compliance and security topics is a big advantage.
• Strong analytical thinking, both in the technical and in the product domain.
• Excellent communication skills that are clear, concise, and targeted towards your audience - engineering, product, or other stakeholders.
• A passion for well architected, testable and documented code.
• Experience with domain-driven design and distributed architectures and/or microservices is a plus.
• Background in financial services is a strong plus.

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Job Description

• Give to all aspects of the agile development life cycle including design, development, documentation, testing and operations.
• As a software development engineer on a team, you will play a pivotal role in crafting the definition, vision, design, road map and development of product features from beginning to end.
• Design, implement, test, deploy and maintain innovative software solutions to transform service performance, adaptability, cost, and security.
• Use software engineering best practices to ensure a high standard of quality for all team deliverables.
• Work in an agile, startup-like development environment, where you are always working on the most important priorities.

Description Here

Qualifications

• 5+ years of non-internship professional software development experience.
• Extensive programming experience with Kotlin, Java, and Android platform technologies and APIs.
• 2+ years of experience supplying to the architecture and design (architecture, design patterns, reliability and scaling) of new and current systems.
• Bachelor’s Degree in Computer Science or related field or equivalent years of experience.
• Proven knowledge of Computer Science fundamentals (object-oriented design, data structures and algorithm.
• Strong verbal and written communication skills.
• Solution-oriented attitude and ability to solve tough problems in a collaborative, cross-functional, and fast-paced environment.
• Demonstrated leadership abilities in an engineering environment in driving operational excellence and best practices.
• Highly quantitative with great judgment and passion for building a great customer experience.
• Uncompromising attention to detail and drive to continuously improve the product.
• Ability to take a project from scoping requirements to launch to delivery.

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Job Description

At Block, our Issuing team is at the heart of our operations, powering tens of millions of cards for Cash and Square. We're on a mission to create a robust platform that handles everything from card lifecycle and KYC to card fulfillment, transaction processing, disputes, and fraud. Our work is critical in building trust and efficiency for our customers, making their financial operations seamless and secure. As a key member of our team, you will be focused on expanding our disputes and fraud platform.

Qualifications

You will:

• Design, build and support the core systems used to power all transactions on Cash App
• Break existing monoliths into event-driven microservices 
• Creatively solve challenging technical problems at scale
• Partner closely with product managers, data scientists, product engineers, and business leads to define our roadmap 
• Have autonomy to research and achieve outcomes with support when you need it
• Contributing to the growth of our development capabilities through leading, mentoring and supporting fellow engineers

You have: 

• 8+ years of experience delivering quality software
• Natural curiosity to learn new technologies, solve interesting problems and build quality software
• Desire to find flaws in a system with many moving parts and take whatever steps are necessary to fix them
• Desire to perform and grow as an engineer
• Technical initiative and leadership on previous projects

Technologies we use and teach:

• Java, Kotlin, Go
• Kubernetes, AWS
• Jaeger, Prometheus, SignalFx
• JUnit
• Hibernate, Guice, GRPC

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