Senior Fullstack Engineer

Benifex; Göteborgs kommun; On-site; SEK 900,000 - 1,100,000; Full time

Benefits offered by this job

ITP1 pension

Lifeplan – pension advisory

Collective agreement

Benefits portal access

Wellness allowance

30 vacation days

Referral bonuses

Enhanced parental pay

Volunteer Days

Job summary

Benifex, a fast-moving technology company delivering online reward and benefits solutions, seeks a Senior Fullstack Engineer to own frontend and backend work across employee experience products, mobile app, and platform UI.

You will use React, TypeScript, and Angular on the frontend and Java, Spring Boot, and SQL on the backend, integrate with APIs, and champion reliability, security, and performance while exploring AI-assisted coding tools.

Qualifications

• Design, build, and maintain fullstack features across employee experience products and platform UI.
• Frontend functionality using React/TypeScript and Angular support.
• Backend services, APIs, and data flows with Java, Spring/Spring Boot, and SQL.
• Integrate frontend with reliable APIs and platform services.
• Refactor and reduce technical debt while ensuring reliability and security.
• Promote accessibility and maintainability in delivery.

Responsibilities

• Design, build, and maintain fullstack features across employee experience products and platform UI.
• Build frontend functionality in React/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.

Skills

React

TypeScript

Angular

Java

Spring/Spring Boot

SQL

API design

CI/CD

Testing

Observability

AI-assisted 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. To help us on our quest to be the best, we need brilliant people on board and that’s where you come in.

Why should you apply

• Impact: work on a product suite used by millions of people that improves employee experience and wellbeing.
• Scale: a big focus of our engineering teams is building features and services to support our customers globally.
• Autonomy: have an input into the product roadmap and technically lead features/services.
• Development: this is a crucial part of our aim to ensure a seamless experience across FPS.
• Top 10 Employer, Sunday Times Best Places to Work Awards
• Work for a profitable, fast-growing market leader in the online reward and benefits space

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.

We are also on a journey to use AI more deliberately in our daily engineering work. We are looking for someone who has practical experience with AI‑assisted and agentic coding workflows, or who wants to keep exploring how these tools can help us move faster, improve quality, understand complex codebases, and reduce repetitive work without lowering our engineering standards.

Great benefits

• ITP1 pension
• Lifeplan – a leading financial advisory service that offers personalized 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

Responsibilities

• Design, build, and maintain fullstack 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.

What are we looking for

• Java, Spring/Spring Boot, and SQL: Needed to build and maintain backend services, APIs, and data-driven functionality.
• React, TypeScript, and Angular: Needed to contribute across both future frontend development and existing FPS frontend areas.
• API design and integration: Important for creating dependable interfaces between frontend, backend, and platform services.
• Testing, CI/CD, and observability: Needed 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.

Please note: Our recruitment process will begin in mid-to-late August, once the hiring team has returned from their summer holidays. We appreciate your patience and look forward to reviewing your application.

Our Interview Process

Benifex understands the need to have a fast and efficient process, the below will all be completed in the shortest time possible, typically a 2‑2.5 week timeframe.

• Initial informal call with the Talent team
• Interview with our Engineering Director 30-45 min
• Technical Task
• Technical Interview 60 min
• Final interview with VP of Engineering 30-45 min

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.