Applying and hearing nothing back? Find out what an ATS does to your CV — free.

Scan my CV

Senior Full Stack Engineer

Quantum · London (hybrid)

On-siteSeniorPosted 8 Aug 2026

Job description

Our Company At Quantum, we connect global brands with high-intent consumers. We turn intent into action and complexity into clarity. Our Mission is clear, to help smarter, faster buying decisions. Our vision, to be the world’s most used digital comparison service, delivering value and simplicity to millions. We drive growth through data-driven affiliate marketing built for performance from day one. Every campaign is measurable, optimised in real time, and designed to scale. With in-house tech, full-stack analytics, and a compliance-first mindset, we give our partners an edge. We drive confident decisions and growth in regulated and high-growth sectors. We’ve helped ambitious brands grow faster, smarter, and globally. The Role Our Technology team is growing and we'd love you to grow with us. We're looking for a Senior Full Stack Engineer to help shape and scale our technology platform as we pursue our ambitious vision. In this role, you'll take a leading hand in both frontend and backend systems delivering high quality development and thoughtful technical solutions across the product lifecycle. While your primary focus will be coding and architecture, you'll also support and guide other developers, helping to foster a culture of quality, curiosity, and continuous improvement. You're a skilled individual contributor and a collaborative technical champion, someone who enjoys working closely with others to build scalable, efficient, and well crafted applications using modern frameworks and tools. Key Responsibilities Lead by example as a hands on developer, contributing to both front-end and back-end codebases Shape architecture and system design for web applications, with a focus on scalability, security, and performance Mentor and support other engineers, championing code quality through thoughtful reviews and shared best practices Design and implement responsive, user friendly web interfaces using modern JavaScript frameworks (Next.js, React) Partner with UX/UI designers to bring designs to life as functional, intuitive experiences About You Strong expertise in JavaScript frameworks such as React, Vue.js, or Angular, with solid proficiency in HTML, CSS, and responsive design Solid experience with Node.js, Express.js, and building RESTful APIs or microservices Comfortable working with both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB) databases Experience integrating automated tests into CI/CD pipelines (e.g. Jenkins, CircleCI, GitLab CI) and familiarity with containerisation tools like Docker Knowledge of CMS would be a bonus You do your best work as part of a team and enjoy sharing knowledge as much as gaining it You're comfortable navigating ambiguity and a fast-moving environment Excellent written and verbal English skills Collaborative and grounded, you value others' perspectives and create space for them What You’ll Get Private Health Care (Bupa) Hybrid Working (3 days in office) Travel Insurance Competitive Base Salary Company Bonus Scheme Paid for AI Subscription (Claude / ChatGPT / Gemini) Market-Leading Training Programme Recognition & Reward Scheme Annual Company Conference Regular Happy Hours & Team Lunches Free Coffee, Drinks & Snacks What’s the next step? Our hiring process ensures we're recruiting the right people for the role. We ensure that people are as suitable for us as we are for them. If you like the sound of what we're all about at Quantum and want to join a team where you can make an impact, please apply or contact us at ----- Find Jobs in United Kingdom on Arbeitnow

What this role requires

4 requirements, read out of the advert rather than guessed from the job title:

Also mentioned, not required: Vue.js, Angular, HTML, CSS, Express.js, MySQL, MongoDB, CI/CD, Jenkins, CircleCI, GitLab CI, Docker, English. Worth having, but their absence is not what gets a CV filtered out.

See how often each of these is required across open full-stack roles in Europe.

Check my CV against these 4 requirements

Free, no card. Tells you which of them your CV evidences and which it only implies.

You can apply in a minute. Will it get read?

Applications are screened by software before they reach a person. Scan your CV free to see the score it gets and the three things costing you the most — then get this role, and the rest of the feed, ranked against what it actually says.

  1. 1

    Drop in your CV

    One PDF, about thirty seconds. No card, no forms to fill in by hand.

  2. 2

    See what the filter sees

    We read it the way an applicant tracking system does and score it — plus the three things costing you the most.

  3. 3

    Get every role ranked

    Each listing scored against what your CV actually says, with the missing skills named, updated as new roles arrive.

  • Your CV file is deleted after parsing — we keep the extracted skills, and you can delete those in one click
  • Free forever, no card
  • Listings refreshed every 6 hours