--- title: 'Senior Full Stack Engineer at Quantum' canonical: 'https://feeny.ai/job/senior-full-stack-engineer-quantum-london-g5wrmyyj21a8' type: 'job' last_seen: '2026-09-04' --- # Senior Full Stack Engineer at Quantum - **Company:** Quantum - **Location:** London, United Kingdom - **Employment:** full-time - **Work type:** hybrid - **Posted:** 2026-09-01 - **Last confirmed live:** 2026-09-04 - **Apply:** https://jobs.ashbyhq.com/quantum/08848c67-8fd2-4094-8432-72de9835d7ad ## 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 careers@quantum.media. ## About Quantum ## Company Overview - **One-liner**: Quantum connects global brands with high-intent consumers through data-driven affiliate marketing, optimizing campaigns for performance and scalability. - **Entity Type**: Private (Bootstrapped) - **Headquarters**: London, England, United Kingdom - **Founded**: 2014 - **Founders**: Not publicly available ## Core Business - **Primary industry**: Affiliate marketing, digital performance marketing, comparison services - **Target customers**: B2B (global brands in regulated and high-growth sectors), B2C (high-intent consumers) - **Mission statement**: "To connect global brands with consumers, helping them make smarter and faster buying decisions." ## Products & Services - **Data-Driven Affiliate Marketing**: Full-service affiliate campaigns with in-house tech, real-time optimization, and compliance-first approach. - **Paid Advertising**: Targeted ads across search engines and social media to reach users actively seeking engaging experiences. - **CRM Managed Promotions**: Personalized CRM strategies to nurture player/consumer relationships and maximize loyalty. - **Data Intelligence**: Analysis of consumer behavior and campaign performance to refine marketing strategies. - **Acquisition & Engagement/Retention**: Multi-channel marketing to acquire and retain high-intent users. ## Market Standing - **Valuation/Market Cap**: Not disclosed - **Key Metric**: 60+ employees (81 per Built In, 86 per LeadIQ); 100+ active partnerships; 10+ years in business - **Notable Investors/Partners**: Not publicly available (no funding rounds disclosed) - **Growth Signals**: Recent rebrand/relaunch ("The Evolution"), launch of a graduate scheme with nine new hires, continuous hiring across data, marketing, product, and engineering teams. ## Competitive Advantages - **In-house technology stack** with full-stack analytics and proprietary platforms for campaign management. - **Compliance-first mindset** enabling operation in regulated sectors (e.g., gambling, financial services). - **Data-driven performance model** that measures, optimizes, and scales campaigns in real time. - **Deep industry insight** and 10+ years of experience in affiliate marketing. ## Strategic Focus - Scaling the technology platform and expanding the engineering team (e.g., hiring Senior Full Stack Engineer). - Strengthening the brand via a comprehensive rebrand and relaunch ("Welcome To The Evolution"). - Growing the graduate programme and investing in talent development. - Expanding into new high-growth sectors and geographies. ## Why Work Here - **Hybrid work model**: 3 days in-office (Tuesday–Thursday) at The Screenworks in Islington, London; flexible remote on remaining days. - **Benefits**: Competitive salary, company bonus scheme, private healthcare (Bupa), market-leading training programme, paid AI subscriptions (Claude/ChatGPT/Gemini), annual company conference, regular happy hours & team lunches, parental leave, recognition & reward scheme. - **Culture**: Values-driven (Build Together, Go All In, Be Brave, Push the Limits, Embrace Change); emphasis on diversity, equity, and inclusion; flat hierarchy with shared ownership; high-performance environment with collaboration and continuous learning. - **Engineering culture**: Growing tech team, modern stack, focus on building and scaling a platform for global reach. ## Sources 1. [quantum.media](https://www.quantum.media/) 2. [quantum.media/careers](https://www.quantum.media/careers) 3. [builtin.com](https://builtin.com/company/quantum-quantummedia) 4. [builtin.com (job posting)](https://builtin.com/job/senior-full-stack-engineer/8706456) 5. [leadiq.com](https://leadiq.com/c/quantum/615dc1d0990e636b3e5fba13/employee-directory) ## Other roles at Quantum - [Senior Data Engineer](https://feeny.ai/job/senior-data-engineer-quantum-london-070haxvtf3sj) — London, United Kingdom - [Graduate Data Engineer](https://feeny.ai/job/graduate-data-engineer-quantum-london-31akckh9kfyh) — London, United Kingdom - [Senior AI Engineer](https://feeny.ai/job/senior-ai-engineer-quantum-london-g296er5w5fqb) — London, United Kingdom - [Paid Social Specialist](https://feeny.ai/job/paid-social-specialist-quantum-london-jhq0ejz3reyz) — London, United Kingdom - [Creative Strategist](https://feeny.ai/job/creative-strategist-quantum-london-esksqfh85qzt) — London, United Kingdom - [Head of Data Engineering](https://feeny.ai/job/head-of-data-engineering-quantum-london-zde1fq6p51ey) — London, United Kingdom - [Technical CRM Executive](https://feeny.ai/job/technical-crm-executive-quantum-london-01efyhw44ab6) — London, United Kingdom - [Technical CRM Specialist](https://feeny.ai/job/technical-crm-specialist-quantum-london-pxsf10g3v1xq) — London, United Kingdom - [Head of Business Development](https://feeny.ai/job/head-of-business-development-quantum-london-67tjfs65ref5) — London, United Kingdom - [Senior Frontend Engineer (Web & App)](https://feeny.ai/job/senior-frontend-engineer-web-app-quantum-maidstone-zq4aefxp4a9h) — Maidstone, United Kingdom