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Frontend Engineer; Brain team

Job in Southampton, Hampshire County, SO15, England, UK
Listing for: Benifex Limited
Part Time position
Listed on 2026-10-30
Job specializations:
  • Software Development
    Front End Developer, React.js
Salary/Wage Range or Industry Benchmark: 45000 - 70000 GBP Yearly GBP 45000.00 70000.00 YEAR
Job Description & How to Apply Below
Position: Frontend Engineer (Brain team)
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 UK. 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?
  • Grow
    : you'll own features end-to-end on a key product, with senior engineers alongside you to help you break down bigger problems and grow your scope

  • A clear path forward
    : we have published Engineering Career Pathways from Associate to Principal, so you know exactly what good looks like at your level and what the next step looks like

  • 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

  • AI first by default, we're building our SDLC around AI Assisted engineering, and you'll be learning and shaping this alongside the rest of the team, not inheriting a finished playbook

Please note we are unable to offer visa sponsorship and require to people to be based in the UK or Ireland for this position

Great benefits:
  • £45,000 - £70,000
  • Tech setup of your choice (Mac Book Pro or equivalent, monitors, etc.)
  • £/€800 annual learning budget, plus two hours per week as ‘Focus Fridays’.
  • Flexible work – choose a working setup that works for you, our only ask is to see you once a quarter in our UK HQ and you need to be based in UK, Ireland, Germany or the Netherlands
  • 25 days holiday plus your local bank holidays
  • Your birthday off
  • Two half day wellbeing days
  • Healthcare cash plan to cover the costs of day to day healthcare
  • Employee Assistance Plan 24/7 365 support
  • Income Protection (75%) and life assurance (4x salary)
  • Pension scheme
  • Enhanced parental leave package - 26 weeks fully paid maternity leave and 4 weeks fully paid paternity leave
  • £50 monthly allowance to spend on whatever takes your fancy, your very own Benifex card will be topped up at the start of each month!
Role Overview

We're looking for a Frontend Engineer to join the team behind Brain
, Benifex's flagship AI-powered product.

In this role, you'll build the frontend experiences that enable Reward Directors to interact with Brain, helping them understand and compare employee reward and benefits packages across different countries and markets.

You’ll work as part of a cross-functional product team alongside Engineers, Product Managers and UX Designers, transforming ideas and designs into intuitive, accessible and high-quality user experiences. Frontend engineers play a key role in shaping how we build products, and you’ll have the opportunity to influence technical decisions, tooling and best practices within the team.

Beyond your product team, you’ll be part of our wider Frontend Chapter
, collaborating with frontend engineers across Product Engineering to share knowledge, improve standards and help evolve our frontend capability.

Our tech stack is React, Type Script, Redux, Redux-Sagas, RsBuild, MSW. Our backend services are .NET.

Responsibilities

The focus for the next 12 months will be:

  • Designing and building new frontend features in React, Redux ES6, HTML, CSS with responsive web design principles

  • Experience working on software built on REST APIs

  • Working closely with product and design to build slick, user-centric features

  • Having input during the UX/design phase, the designers use XD and Figma

  • Feeling comfortable taking frontend features from requirements to production

  • Experience working within…

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