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Senior Android Engineer (contract)
Builds a new Android merchant app for a fast-growing UK payments company, using Kotlin, Jetpack Compose, and reactive programming to solve in-person commerce pain points.

Staff Software Engineer, Cash App Banking
Lead the architecture and engineering of Cash App’s banking backend, building scalable financial services in Java/Kotlin on AWS while mentoring engineers and driving cross-team technical strategy.
Embedded Software Engineer – Java
Build a central Java-based test solution for FPGA designs in an advanced embedded environment in Göteborg: developing test-data analysis, controller emulation, and lab integration as part of the team's CI/CD chain. Requires 7+ years of Java with JUnit/automated testing; C/C++, MATLAB and Python are pluses.
Desenvolvedor(a) de Software com foco em IA SR
Senior software developer building AI-powered applications and APIs (LLMs, generative AI agents, RAG, vector databases) in cloud and on-prem environments for a Brazilian IT services group. Core stack is Java 11+/Spring Boot with OpenAI/Azure/Gemini integrations; hybrid role with 2 days/week on-site at Vila Olímpia, São Paulo.
Senior Full-stack Developer
Senior full-stack developer who owns features end to end for a digital portal in a cross-functional product team in Göteborg (hybrid, at least 3 days/week in office). Core stack is Java/Spring Boot on the backend with React/TypeScript frontend, plus REST/GraphQL, PostgreSQL, AWS and CI/CD.


Manager Software Engineering
Engineering Manager for Fivetran's Data Application Platform team, leading engineers who build core data-movement systems: scheduling, workflow management, application security, and database systems. A hands-on leadership role combining people management and technical direction in a Java/Postgres stack on AWS/GCP with Docker, Kubernetes, and modern CI tooling; hybrid, based in Oakland, CA.
Ведущий Java-разработчик (гибридный формат работы)
Lead Java developer on Мос.Хаб — an inner-source DevOps/developer-portal platform (built on a GitLab fork) for Moscow city information systems. Designs domain microservices, Kafka event flows, and OpenAPI contracts, reviews code, and manages tech debt. Stack: Java 21, Spring Boot/Micronaut, Kafka, PostgreSQL, Redis, Kubernetes.
Senior Java Software Engineer
Senior Java engineer (8+ years) building scalable, secure backend microservices and event-driven systems with Java 21, Spring Boot, Kafka, and SQL/NoSQL databases — secured with OAuth2/OIDC, deployed on Docker/Kubernetes/OpenShift with CI/CD, observability, and AI-assisted development tools.


Senior Software Development Engineer in Test - Database Automation
Designs and maintains scalable database automation frameworks in Java to ensure data pipeline reliability, correctness, and performance at Fivetran, leveraging AI/ML tools for smarter testing and debugging.
Staff Software Engineer, Android
Staff Android engineer building native Android apps (Kotlin, Jetpack Compose, Coroutines/Flow, GraphQL) that power Butterfly Network's portable ultrasound devices, collaborating with hardware, cloud, ML, and imaging teams on medical imaging experiences.


Staff Software Development Engineer in Test
Leads test automation infrastructure and quality strategy for a data-movement platform, building shared tools in Java/Python and cloud-native stacks to ensure reliable, high-confidence releases.
Senior Java Developer
Senior Java developer (5+ years) in Warsaw (1 office day/week, B2B at 160 PLN/h) developing Java applications and microservices. Day to day: building Spring-based services, optimizing SQL queries, implementing security, writing unit/integration tests, code reviews, and integrating with external systems.
Lead Mobile SDET
Lead SDET responsible for architecting QA automation frameworks for a Mobile Security Suite (iOS/Android/server). Involves hands-on coding in Swift/Kotlin, managing CI/CD pipelines, and mentoring engineers on test strategy.
Développeur logiciels - Software Developer
SDET designing automated test frameworks for microservices and Spring Boot applications. Work involves CI/CD integration, performance testing, and tools like Java, Selenium, Docker, and Jenkins.