staff java backend developer

OverviewJoin our diverse and multicultural team at Nebius. We are looking for backend engineers to develop and maintain our core systems. The role involves working with cloud infrastructure, coding in Python and Java, and collaborating with cross‑functional teams.QualificationsAt least 3 years of experience in backend development.Degree in computer science...

Supercell in Helsinki is seeking an experienced Server Engineer for the Brawl Stars team. In this role, you'll design and maintain highly scalable backends for live games and collaborate closely with client programmers to develop new features.The ideal candidate will have strong server-side Java experience and a passion for game feature development. You will...

About the RoleAlphaSense is moving beyond search toward AI-powered decision workflows and proactive intelligence that help professionals understand markets, monitor change, and act with confidence. Mobile is a critical part of that shift: our customers need trusted intelligence in fast-moving moments, not only when they are sitting at a desktop.Android is an...

Tietoa tehtävästä Etsimme tiimiimme kahta backend/fullstack-sovelluskehittäjää, joilla on halua, intoa ja intohimoa oppia uutta ja haastaa itsensä. Työskentelemme AI-painoitteisesti Kotlin/Java-Vue.js-Kubernetes -ympäristössä, mutta emme kuitenkaan odota näiden teknologioiden syvällistä tuntemusta entuudestaan. Tämä voi olla siis ensimmäinen...

Your code will protect millions of devices. At CUJO AI, our OTM (OnTheMove) team builds Android and iOS apps backed by acloudplatform deployed on AWS — delivering cybersecurity and parental control features to users on the go.We'relookingfor aSenior Software Engineerwithproven experiencein programming usingTypeScript/Node.jsonAWS serverlessservices,to...

Nebius B.V. is seeking backend engineers to develop and maintain our core systems, focusing on scalable, reliable services.You will collaborate with frontend and site reliability teams to build robust cloud-based solutions and ensure security and performance across the stack. Ideal candidates have experience with cloud platforms and programming in Python or...

Our award-winning tech community is looking for lead developers to join us in Helsinki.  As a lead developer at Reaktor, your job is to work with the full software development lifecycle, help your team succeed, and deliver results Your daily tasks include:Being the first point of contact for the client when it comes to technical questions or the quality...

Our award-winning tech community is looking for lead developers to join us in Turku.  As a lead developer at Reaktor, your job is to work with the full software development lifecycle, help your team succeed, and deliver results Your daily tasks include:Being the first point of contact for the client when it comes to technical questions or the quality of...

Reaktor's award-winning tech community is looking for full-stack developers to join us in Helsinki. If you are in your element with a full software development cycle, have a passion for solving human problems with a holistic approach, and are curious to experience working in a low-hierarchy environment, you might just be what we're looking for.As a Full...

Reaktor's award-winning tech community is looking for full-stack developers to join us in Turku. If you are in your element with a full software development cycle, have a passion for solving human problems with a holistic approach, and are curious to experience working in a low-hierarchy environment, you might just be what we're looking for.As a Full Stack...

Reaktor's tech community is looking for an experienced Senior Native Mobile Developer to join our Gaming & Entertainment Business Unit in Helsinki.If you thrive in native mobile development, enjoy solving complex challenges in multidisciplinary teams, and are curious to work in a low-hierarchy environment, you might just be what we’re looking for.You will...

Implement Temporal workflow activities in Go: HSS adapter, PCRF adapter, Inventory update.Build and validate unit tests for all workflow activities from day one.Build the Inventory Management Database: tables, indexes, partitioning for 30M records.Build bulk import tooling: CSV → ICCID/IMSI/MSISDN range ingestion from vendor.Implement REST API endpoints...

Reaktor's tech community is looking for an experienced Senior Fullstack Developer to join one of our Business Units in Helsinki.If you are comfortable working across modern web applications, backend services and production systems, enjoy solving ambiguous problems with clients, and are curious to work in a low-hierarchy environment, you might just be what...

The world’s most sophisticated companies rely on AlphaSense to remove uncertainty from decision-making. With market intelligence and search built on proven AI, AlphaSense delivers insights that matter from content you can trust. Our universe of public and private content includes equity research, company filings, event transcripts, expert calls, news,...

Job OverviewAt Columbia Road, we are looking for talented developers with some professional experience in software development to grow into trusted advisors. The role involves building digital sales channels and systems, collaborating with cross-competence teams, and creating business impact through technology.Location & SalaryPosition based in Helsinki or...

What if your next role would let you shape user experiences at the core of Finlands financial infrastructure?We're looking for a Full Stack Developer to join our New Business -team in Euroclear Finlands IT department for a permanent position.This position suits a developer who values engineering excellence, meaningful impact, and professional autonomy, and...

Job ID: 4964We are looking for a Java-enthusiast Backend Developer with experience in building Rest APIs using Spring Boot framework to join our team in Finland. This is an opportunity for you to play a part in building a better finance company and help our customers to reach their goals. Job ID: 4964We are looking for a Java-enthusiast Backend Developer...

Responsibilities Implement Temporal workflow activities in Go: HSS adapter, PCRF adapter, Inventory update. Build and validate unit tests for all workflow activities from day one. Build the Inventory Management Database: tables, indexes, partitioning for 30M records. Build bulk import tooling: CSV → ICCID/IMSI/MSISDN range ingestion from vendor. Implement...

Reaktor Innovations Oy in Turku is seeking a Full Stack Developer to join our delivery teams. You will build features across frontend and backend, collaborate with client teams, and contribute to architecture and code quality.You should have experience with Java/Scala/Kotlin, Node.js, Python, React, and PostgreSQL. The work focuses on delivering scalable web...

Innokas is a growing and experienced Finnish contract design and manufacturing company (CDMO), trusted as an expert partner by customers in demanding and regulated industries. We serve companies in health technology, industrial high-tech, and defense and dual-use sectors in the Nordics and Europe.We are part of the value-driven and family-owned Paree Group...