backend developer - python

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...

ICEYE is looking for a Senior Backend Software Engineer in Espoo, Finland. This role offers the chance to impact global intelligence through the engineering of production-grade systems that control satellites. You will design, develop, and optimize backend services for satellite fleet operations. The ideal candidate has over 5 years of experience in backend...

Nebius B.V. in Helsinki is seeking backend engineers to develop and maintain our core systems, leveraging cloud infrastructure and modern languages. You will contribute to scalable services and reliable software.You will code in Python and Java, collaborate with cross‑functional teams, and help scale our platform for growth. This on-site role offers...

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 award-winning tech community is looking for AI developers to join us in Helsinki. If you thrive on applying cutting-edge AI technologies, building LLM-powered applications, and driving projects through the full software development lifecycle — and you’re passionate about solving real human problems with a holistic approach — we’d love to...

About the roleJoin our Next Gen Value Streams services team, a specialized pool of around 50 team members dedicated to reimagining how organizations function. We don't just automate tasks; we architect intelligent, adaptive workflows that connect disconnected data and turn manual work into a source of competitive advantage. In this role, you will work on...

Join Columbia Road as a Senior Software Consultant! Make an impact crafting seamless customer journeys and solving complex challenges directly with clients. Enjoy autonomy, growth opportunities, and variety in technology whilst being supported by a great community. We look forward to hearing from you, future Roadie!Who we areColumbia Road is the go-to...

Redly Games, a gaming startup in Finland, is seeking a Server Engineer to lead backend infrastructure for an upcoming mobile adventure game. You'll own the backend strategy and implement scalable solutions for player data, live operations, and analytics. Candidates should possess 6+ years of game development experience, ship live service games, and be...

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...

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...

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...

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...

We’re looking for an IoT Cloud Lead Developer to revolutionize power electronics with cutting-edge solutions in high-efficiency and software-defined energy conversion. This is a high-priority role, and we’re looking to fill it as soon as possible. Key requirements: Strong hands-on AWS experience, with the ability to design and implement production-grade,...

Are you looking to grow not only as a software developer, but also as a trusted advisor? At Columbia Road, we're looking for talented developers to help businesses grow while you grow your career. If you've already gained some hands‑on experience in professional software development and are eager to grow into a skilled consultant in a low‑hierarchy,...

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...

As an AI capable Senior Full-stack Developer, you are much more than a strong programmer - you're a trusted partner for clients and a pillar for your development team. With experience from multiple complex projects, you bring clarity in uncertainty and deliver real impact through both code and collaboration. You thrive in full-stack environments and are...

Are you looking to grow not only as a software developer, but also as a trusted advisor? At Columbia Road, we're looking for talented developers to help businesses grow while you grow your career. If you've already gained some hands-on experience in professional software development and are eager to grow into a skilled consultant in a low-hierarchy,...

Greenstep is a growing, global group helping thousands of companies in Europe to grow through clarity. We are a technology-oriented company with Finnish roots, founded in 2010. In addition to Finland, we currently operate in Sweden, Norway, Estonia, Denmark, and the Netherlands. Our team of around 800 experts consists of seasoned professionals in areas such...

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior ML Backend Engineer based in Finland. This role offers the opportunity to build and evolve the machine learning infrastructure behind advanced property intelligence solutions. You will combine strong backend engineering...