Employment OS for your Business

Employment OS for Job Seekers

Senior Full Stack Engineer – Remote, UK

Engineering • United Kingdom, WC1, United Kingdom • Full-time
AI Job Summary
  • Senior-level software engineering capabilities and deep architectural knowledge (typically 6+ years).
  • Experience guiding a squad to design, scope, and deploy high-impact full-stack features for customers.
  • Proactively identify SaaS pain points, scale system architecture, and ensure security and stability.

Role Type

Within United Kingdom • Permanent • Full-time • Mid-level Senior

Description

Who we are

Employment Hero is on a mission to make employment easier and more valuable for everyone around the world. Our Employment Operating System brings hiring, HR, payroll and benefits into an all-in-one solution.

Since launching in 2014, we’ve grown from startup to global scale, reaching a valuation of over $2 billion and building a presence across six countries, with even more growth ahead. We now serve over 350,000 SMEs, pay more than 3 million employees, and support a growing pool of job seekers finding their next role through our platform.


The EH Way

At Employment Hero, we’re proud of our unique DNA, which we call The EH Way.

  • We are Mission First – everything we do (from what we work on, to how we allocate capital and where we focus) is driven by our Mission
  • We are Remote First – we champion a remote environment with a preference for asynchronous communication and a high degree of autonomy
  • We are AI First – we are committed to using AI to accelerate our mission; AI is not just a tool, it’s a fundamental part of how we operate, innovate, and scale
  • We are Apolitical – we do not take a position on political or social topics, unless it relates to our Mission
  • We Live by Our Values – we role model our values 100% of the time
  • We Expect High Performance – we set a high standard and we’re not satisfied with being average

This role

As a Senior Full-Stack Engineer, you’ll be working with our engineering team and a global product squad and will be instrumental in building highly scalable, robust, and innovative features across our entire ecosystem.

(Note: We primarily use Ruby on Rails and React.js. If you’re not deeply familiar with Ruby, no worries—we care much more about your core engineering patterns and full-stack architecture skills, and provide dedicated up-skilling!)

Your key focus areas will be

End-to-End Feature Delivery: Guiding your squad to design, scope, and deploy high-impact, full-stack features that solve real customer needs.

System Reliability & Health: Proactively identifying SaaS application pain points, scaling system architecture, and ensuring absolute security and stability.

Engineering Mentorship: Fostering a high-performance culture by coaching junior and intermediate engineers to level up their skills.

This will include

  • Full-Stack Implementation: Collaborating with your engineering squad to design, implement, and deploy scalable features across our Rails and React ecosystem.
  • Cross-Functional Translation: Partnering closely with a global team of designers, product managers, and UX specialists to turn abstract business needs into elegant technical solutions.
  • Technical Leadership & Review: Reviewing code, providing constructive feedback, mentoring team members, and actively driving knowledge sharing across squads.
  • System Optimization: Navigating a complex SaaS ecosystem to identify performance bottlenecks and proactively implementing mitigation strategies or process improvements.
  • Quality & Automated Testing: Writing robust automated tests for production code and taking absolute ownership of application reliability and root-cause analysis.
  • Continuous Stack Up-skilling: Actively participating in our dedicated training programs to smoothly transition into and master our core technology stack.

Who you are

To thrive at Employment Hero, you’ll need to embody The EH Way – operating with focus, agility, and an obsession with impact. For this role, you’ll also bring:

  • Senior Technical Expertise: Senior-level software engineering capabilities and deep architectural knowledge (typically 6+ years of experience, though we value skill over resume years).
  • Language-Agnostic Backend Mastery: Proficiency in at least one major backend language/framework (e.g., Python, Java, PHP, Node.js) and the strong engineering fundamentals to quickly learn Ruby on Rails.
  • Frontend Proficiency: Hands-on experience building web applications using modern frontend frameworks like React.js, Angular, or Vue.
  • SaaS & Cloud Delivery: A strong track record of implementing, maintaining, and deploying complex, full-stack cloud web architectures using Agile methodologies.
  • Collaborative Mentorship: A team-first mindset with fluent English communication skills and a passion for mentoring and elevating the engineers around you.
  • UK Work Eligibility: Current residency in the United Kingdom and legal eligibility to work in the UK.

What we can offer

At Employment Hero, we don’t just talk about a better way to work. We live it.

Joining Employment Hero means you’ll:

  • Work in a remote-first environment, giving you the autonomy to do your best work while delivering meaningful outcomes.
  • Be trusted to own your work, make decisions, and have a real impact from day one.
  • Access cutting-edge AI tools and technology that help you move faster, think bigger, and amplify your expertise.
  • Surround yourself with ambitious, high-performing teammates who will challenge, support and inspire you to do the best work of your career.
  • Own ESOP (Employee Share Options) in one of the world’s fastest-growing technology companies, so you can share in the value you help create.
  • Enjoy a comprehensive benefits package, including generous parental leave, subsidised egg freezing, a home office allowance, and outstanding learning and development opportunities to support your growth.
  • Connect with colleagues from around the world at our Annual Global Gathering. We’ve celebrated together in Thailand, Vietnam, Bali and Dubai, and can’t wait to meet in the Gold Coast, Australia, in September 2026.

Privacy and AI Notices

  • AI Notice: We’re AI-first, so may use AI tools to review your applications and support our early interviewing and hiring process. They help us cut the noise, surface great talent fast and make sure every candidate gets a fair, consistent experience.
  • We verify candidate identity and location as part of our hiring process.
  • Employment Hero celebrates diverse perspectives and experiences, we invite people of all backgrounds and identities to apply for this position.
  • At Employment Hero, we are committed to safeguarding the privacy of your application data. By applying to this role, you acknowledge our Applicant Privacy Policy made available here: employmenthero.com/legals/applicant-policy/

Company Overview

Employment Hero is the world’s first Employment Operating System: an end-to-end system built to make employment easier for everyone. From hired to retired, everything employment is managed in one place. Employment Hero helps over 300,000 businesses worldwide hire great people and manage everything from hiring, HR and payroll, through to rewards, recognition and offboarding —all automated behind the scenes. And for the 2M+ employees and jobseekers using Employment Hero, Employment OS is their work passport to unlock great job opportunities, manage work admin and grow their career.