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Consultant jobs · Oslo

Senior Fullstack Engineer

Build next-generation investment solutions as a Senior Fullstack Engineer.

Location: Oslo, Norway
Work Arrangement: On-site (0% remote)
Assignment Period: 1 September 2026 – 30 June 2027
Extension: Possible
Application Deadline: 16 August 2026

Assignment Description

We are looking for a Senior Fullstack Engineer to join the development of a next-generation Savings & Investment platform with the ambition of becoming Norway’s leading investment platform.

You will work in a cross-functional product team, contributing across the full technology stack, from modern frontend applications and user experience to backend services and domain development. The role also includes contributing to the adoption of AI within engineering.

Key Responsibilities

  • Develop modern, user-friendly investment solutions.

  • Build frontend applications and Backend-for-Frontend (BFF) APIs.

  • Collaborate closely with Product, Design, and Engineering teams.

  • Take ownership of solutions from concept through production.

  • Contribute to AI adoption and engineering best practices.

  • Make technical decisions and contribute to engineering standards.

Requirements

Must Have

  • Minimum 7 years of relevant experience as a Fullstack Engineer.

  • Strong experience with React and TypeScript.

  • Experience developing RESTful BFF APIs.

  • Strong experience with Kotlin or Java.

  • Strong experience with .NET.

  • Experience with microservice integration.

  • Experience designing APIs and contracts using OpenAPI/Swagger.

  • Experience with OAuth2/JWT authentication and authorization.

  • Experience with monorepos and micro-frontends.

  • Experience developing reusable components and design systems.

  • Knowledge of accessibility and WCAG.

  • Experience with automated testing and frontend performance optimization.

  • Experience with frontend bundlers such as Vite, Webpack, Nx, or Turborepo.

  • Practical experience with LLMs, AI-assisted development, or AI integration.

  • Experience guiding or supporting AI adoption in engineering.

  • Experience with AWS.

  • Professional proficiency in Norwegian and English, both written and spoken.

Good to Have

  • Experience with Maven or Gradle.

  • Experience with GitLab/GitHub CI/CD.

  • Experience with pnpm workspaces.

  • Experience with feature flags, A/B testing, and progressive rollout.

  • Experience mentoring developers and contributing to engineering standards.

About Sperton

Sperton is a global recruitment and consulting company with offices across Europe, Asia, and the Americas. We help organizations find and engage top talent through flexible recruitment, consulting, and global mobility solutions.

Department
Consultant jobs
Locations
Oslo
Employment type
Contract
Job location
Oslo (NO)
Employment Level | Seniority
Senior Level
Picture of Payal Khanna
Contact Payal Khanna Recruitment and Consultant Advisor – HR Consultancy & Business Services

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Workplace & Culture at Sperton

At Sperton, we believe that great results come from great people.
Our culture is built on trust, collaboration, and a shared passion for delivering quality in everything we do.

We are a Norwegian-owned international company with colleagues across Europe, Asia, and the USA, working together seamlessly across time zones and cultures. Our teams are diverse, yet united by the same goal — to connect people and companies in meaningful ways.

We value openness, initiative, and continuous learning. Everyone at Sperton is encouraged to take ownership, share ideas, and challenge existing ways of working to make our solutions even better.

Even though we operate globally, our approach is personal. We take pride in creating a supportive and inclusive environment where people feel heard, respected, and motivated to grow — both professionally and personally.

Consultant jobs · Oslo

Senior Fullstack Engineer

Build next-generation investment solutions as a Senior Fullstack Engineer.

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