java backend developer

About AlphaSense:  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,...

all positionsHelsinki - onsite - FullTimeSenior Software Engineer, Supercell ID (Backend)We are looking for a Senior Software Engineer to join the Supercell ID team within our Player Platform organization. In this role, you will own and drive significant evolutions of Supercell ID: setting technical direction, leading high-impact initiatives end-to-end, and...

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...

Unikie is seeking a Python Backend Engineer with C++ experience to join our international team. You will start in a customer project or internal product development, depending on your profile.Our flexible, low-bureaucracy environment supports remote work with occasional office visits and a strong compensation package. Join us to work on embedded systems...

Software Developer – SOK Digital Development Paikka: Helsinki, Ässäkeskus; joustava työskentely etätyössä osittain. Työsuhde: Vakituinen – Kokoaikainen Hakuaika päättyy: 01.08.2026 | Julkaisupäivä: 13.07.2026 About the job You will be part of the core development team, working on the next generation of the sokos.fi online store. You will join...

Ready to shape the future of health tech in the Nordics?AtMylab,we’reon a mission to transform diagnostics through innovative software solutions that make a real difference in healthcare.Our solutions empower professionals, improve patient outcomes, andset new standards in health technology.Every line of code, every feature, every decision matters,because...

Berlin, Germany; Helsinki, Finland; Stockholm, Sweden About Wolt At Wolt, we create technology that brings joy, simplicity and earnings to the neighborhoods of the world. In 2014 we started with delivery of restaurant food. Now we’re building the delivery of (almost) everything and you’ll find us in over 500 cities in 30 countries around the world. In...

Overview We are seeking an experienced and highly skilled Senior LLVM Compiler Backend Engineer to join our team. In this role, you will be responsible for developing and optimizing the compiler backend for our Parallel Processing Unit. You will work on a variety of tasks that require a deep understanding of computer and CPU architectures, LLVM IR, and the...

Build the intelligence inside connected devices.We are looking for an experienced Firmware Developer to join our engineering team and help develop the next generation of Casambi-enabled products.Your primary focus will be embedded software development for wireless devices built on Nordic Semiconductor platforms. You will work with Bluetooth Low Energy...

Build the intelligence inside connected devices.We are looking for an experienced Firmware Developer to join our engineering team and help develop the next generation of Casambi-enabled products.Your primary focus will be embedded software development for wireless devices built on Nordic Semiconductor platforms. You will work with Bluetooth Low Energy (BLE),...

Swedium Global is hiring Senior Kotlin Developer. This role offers the opportunity to work on diverse projects across modern software development in embedded Linux and Android-based environments. Depending on your strengths and interests, you may contribute to:Designing and implementing robust system-level componentsDeveloping applications for embedded...

About WunderdogWe're a 70-person consultancy helping development teams get better at using AI tools to build things the right way and faster. Not through PowerPoint slides, but through hands‑on training workshops and actual work in teams at companies like Finnair, Elisa, SOK, Alma Media, Sanoma, Blueprint Genetics, RELEX, Smartly and Babbel. Our focus is...

We are looking for a Android and Web developer to one of our clients within Banking & Finance. Start date: 2026-10-02 End date: 2027-03-02 Location: Helsinki (3days onsite, 2 days remote) About the assignment: You will work on Android and Web client UI uplift projects for 2027. The role focuses on notification settings and related mobile and web interfaces....

Salary: 5000 - 6500 EUR/month gross (before tax). The range is flexible for the right candidate. Location: Helsinki, Finland (remote within the EU). Schedule: 1 FTE (40 hours/week). 12-month contract assignment starting ASAP, with a possibility of extension.We are Baltic Assist, an outsourcing company, specializing in innovative remote career solutions. We...

Principal Engineer, Mobile Platform & Backend SystemsAbout AlphaSense: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...

Roolisi Lead Developerina HiQ:lla missiomme on yksinkertaistaa ihmisten elämää. Syvän ja monipuolisen teknologia- ja toimialaosaamisemme sekä luovan ajattelun avulla taklaamme asiakkaidemme haasteita ja luomme entistä toimivampia ratkaisuja. HiQ:lla rakennetaan aidosti arvokkaita palveluita asiakkaalle. Meillä pääset rakentamaan yhteiskunnallisesti...

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...

Paf is seeking a backend developer to join the Compliance Team. The role focuses on scalable AWS-based microservices, with freedom to choose the best tech solutions and a commitment to regulatory reporting across multiple markets.The team is five people, English-speaking, with flexible remote options and a central Helsinki presence. The package includes...

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...