Senior Full Stack Engineer

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 codebasesShape architecture and system design for web applications, with a focus on scalability, security, and performanceMentor and support other engineers, championing code quality through thoughtful reviews and shared best practicesDesign 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 designSolid experience with Node.js, Express.js, and building RESTful APIs or microservicesComfortable working with both SQL (PostgreSQL, MySQL) and NoSQL (MongoDB) databasesExperience integrating automated tests into CI/CD pipelines (e.g. Jenkins, CircleCI, GitLab CI) and familiarity with containerisation tools like DockerKnowledge of CMS would be a bonusYou do your best work as part of a team and enjoy sharing knowledge as much as gaining itYou're comfortable navigating ambiguity and a fast-moving environmentExcellent written and verbal English skillsCollaborative 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 InsuranceCompetitive Base SalaryCompany Bonus SchemePaid for AI Subscription (Claude / ChatGPT / Gemini)Market-Leading Training ProgrammeRecognition & Reward SchemeAnnual Company Conference Regular Happy Hours & Team LunchesFree 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 careers@quantum.media.