Senior Fullstack Engineer

Benifex Nordics; Göteborgs kommun; On-site; SEK 850,000 - 1,000,000; Full time

Benefits offered by this job

ITP1 pension

Lifeplan

Collective agreement

Benefits portal

Wellness allowance

30 vacation days

Job summary

Benifex Nordics in Gothenburg is seeking a Senior Fullstack Engineer to own end-to-end development across frontend and backend for employee experience products, mobile app, and platform UI.

You will design and maintain backend services with Java, Spring Boot, and SQL while crafting frontend features in React, TypeScript, and Angular, aiming for reliability, performance, and scalable code in a complex production environment.

Qualifications

• Experience with Java, Spring/Spring Boot, and SQL: required to build and maintain backend services.
• Experience with React, TypeScript, and Angular: required to contribute frontend work.
• API design and integration: important for dependable interfaces between frontend and backend.
• Testing, CI/CD, and observability: needed for reliable changes in production-like environments.
• AI-assisted and agentic coding: practical experience using AI coding tools while maintaining judgement.

Responsibilities

• Design, build, and maintain full-stack features across employee experience products.
• Build frontend functionality in React and TypeScript; support Angular-based apps.
• Develop and maintain backend services, APIs, and data flows with Java, Spring Boot, and SQL.
• Integrate frontend experiences with reliable APIs and platform services.
• Refactor and manage technical debt to improve reliability and performance.
• Mentor engineers and contribute to technical decisions within the team.

Skills

Java

Spring Boot

SQL

React

TypeScript

Angular

API design

Testing

CI/CD

Observability

AI coding

Job description

Who are Benifex?

We are a fast‑moving technology company and one of the most successful providers of online reward and benefits solutions in the world. We believe that everyone deserves an exceptional experience at work, every day, and build workplace technology that makes this happen. Benifex’s mission is to build remarkable experiences that employees love. Today Benifex supports more than five million employees in over 3,000 organisations across more than 100 countries.

Role Overview

As a Senior Fullstack Engineer you will work across frontend and backend areas that support Benifex employee experience products, mobile app, and platform look and feel. The team is responsible for operational continuity, technical stability, and continuous improvement beyond the product roadmap, which means the work often involves balancing new development with careful maintenance, refactoring, and production reliability. This role suits someone who enjoys complex domains, established systems, and end‑to‑end ownership. You will contribute to frontend development in React, TypeScript, and Angular, while also designing and maintaining backend services, APIs, and integrations using Java, Spring/Spring Boot, and SQL.

Responsibilities

• Design, build, and maintain full‑stack features across employee experience products and platform UI areas.
• Build frontend functionality in React and TypeScript and support existing Angular‑based applications.
• Develop and maintain backend services, APIs, and data flows using Java, Spring/Spring Boot, and SQL.
• Integrate frontend experiences with reliable, well‑designed APIs and platform services.
• Safely evolve a large, long‑lived codebase through incremental refactoring and technical debt reduction.
• Treat reliability, security, performance, accessibility, and maintainability as core parts of delivery.
• Participate in code reviews, testing, documentation, and knowledge‑sharing.
• Help investigate bugs and production issues, identify root causes, and prevent recurring problems.
• Mentor other engineers and contribute to technical decisions within the team.
• Use AI‑assisted and agentic coding tools thoughtfully as part of daily development, code exploration, testing, refactoring, and documentation.
• Help the team learn where AI adds value, where human judgement is still essential, and how to use these tools responsibly in a complex production codebase.

Qualifications

• Experience with Java, Spring/Spring Boot, and SQL: required to build and maintain backend services, APIs, and data‑driven functionality.
• Experience with React, TypeScript, and Angular: required to contribute across both future frontend development and existing frontend areas.
• API design and integration: important for creating dependable interfaces between frontend, backend, and platform services.
• Testing, CI/CD, and observability: required to deliver reliable changes and diagnose issues in production‑like environments.
• AI‑assisted and agentic coding: practical experience using AI coding tools to explore codebases, generate or refactor code, write tests, support reviews, or accelerate delivery while maintaining strong engineering judgement.

Benefits

• ITP1 pension.
• Lifeplan – a leading financial advisory service that offers personalised advice for maximizing your pension savings.
• Collective agreement.
• Access to our comprehensive benefits portal.
• Generous wellness allowance.
• 30 vacation days per year.
• Referral bonuses.
• Enhanced parental pay.
• Volunteer Days – two paid days annually to give back to the community.

We are a proud member of the Disability Confident employer scheme. If you require any reasonable adjustments at any stage during the recruitment process, please let us know with your application.