Senior Fullstack Engineer — AI-Driven, Global Impact

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

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.