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Senior Full Stack Engineer

Quantum · London (hybrid)senior

In short

  • ▸Ingeniero Full Stack Senior que construye y escala plataformas web con enfoque en calidad y rendimiento.
  • ▸Trabajas tanto en frontend (React/Next.js) como en backend (Node.js, APIs) y guías a otros desarrolladores.
  • ▸Destaca el acceso a suscripciones pagadas de IA (Claude, ChatGPT, Gemini) como beneficio exclusivo.

Excellent written and verbal English skills

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What they ask for

  • ✓Experto en frameworks de JavaScript como React, Vue.js o Angular.
  • ✓Experiencia sólida con Node.js, Express.js y APIs RESTful o microservicios.
  • ✓Conocimiento práctico de bases de datos SQL (PostgreSQL, MySQL) y NoSQL (MongoDB).
  • ✓Experiencia integrando pruebas automatizadas en pipelines CI/CD (Jenkins, CircleCI, GitLab CI).
  • ✓Familiaridad con contenedores Docker.
  • ✓Inglés avanzado escrito y verbal para trabajo efectivo.

Don't tick every box? That's normal — your free dossier shows your gaps and how to cover them in the interview.

ReactNext.jsNode.jsExpress.jsPostgreSQLMySQLMongoDBJenkinsCircleCIGitLab CI

Who should you write to at Quantum?

Your free dossier identifies the people who'd interview you — their background, what they value, and how to reach out so you stand out before applying.

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. 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.

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