Last updated: 2025-10-12

17 Full Stack Software Engineering jobs in Helsinki.

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Smartly

Smartly is the AI-powered advertising technology company transforming ad experiences for brands and their consumers. Our comprehensive advertising platform sea…

(Senior) Fullstack Engineer

Helsinki

  • Skills: Fullstack Engineer, microservices, React, Typescript, NodeJS, Kubernetes, PostgreSQL, Redis, test frameworks, cross-team collaboration
  • Level: mid
  • Type: full_time

AlphaSense

AlphaSense is a provider of AI-driven market intelligence platform trusted by over 4,000 enterprise customers, including a majority of the S&P 500. Founded in …

Senior/Staff Software Engineer

Helsinki

  • Skills: performance, React, microfrontend, optimization, profiling, scalability, frontend architecture, performance tuning, web performance, CI/CD
  • Level: mid
  • Type: full_time

Smartly

Smartly is the AI-powered advertising technology company transforming ad experiences for brands and their consumers. Our comprehensive advertising platform sea…

Senior Fullstack Engineer

Helsinki

  • Skills: Node.js, TypeScript, PostgreSQL, Kafka, React, Redux, Kubernetes, Snowflake, GitHub Actions, Creative production tooling
  • Level: senior
  • Type: full_time

The Upright Project

A quickly growing and highly ambitious impact SaaS company with a mission that matters.

Lead Developer (TypeScript)

Helsinki

  • Skills: TypeScript, JavaScript, Node, React, PostgreSQL, Docker, Linux, AWS, Python, UX
  • Level: senior
  • Type: full_time

Mapbox

Mapbox is the leading real-time location platform for a new generation of location-aware businesses. It provides tools for navigation of people, packages, and …

Software Development Engineer II (Full-stack Engineer)

Helsinki

  • Skills: JavaScript, React, Node.js, AWS, UI/UX, REST, micro-frontend, testing frameworks, CI/CD, GeoJSON
  • Level: senior
  • Type: full_time

Speechify

Speechify is the easiest way to listen to the world’s information. Articles on the web, documents in the cloud, books on your phone—we absorb the world’s conte…

Software Engineer, Platform

Helsinki

  • Skills: NodeJS, ReactJS, TypeScript, backend, frontend, systems thinking, collaboration, product roadmap, software engineering, scalable systems
  • Level: mid
  • Type: full_time

Ziff Davis

Ziff Davis (NASDAQ: ZD) is a vertically focused digital media and internet company whose portfolio includes leading brands in technology, shopping, gaming and …

Software Engineer II

Helsinki

  • Skills: Java, Spring Boot, Node.js, TypeScript, AWS, GraphQL, React, Vue.js, microservices, PostgreSQL
  • Level: mid
  • Type: full_time

Ookla

Ookla is a global leader in connectivity intelligence, offering unparalleled network insights through the combined expertise of Speedtest, Downdetector, RootMe…

Software Engineer II

Helsinki

  • Skills: software development, Java, Spring Boot, Node.js, TypeScript, AWS, microservices, PostgreSQL, frontend development, agile methodologies
  • Level: senior
  • Type: full_time