Full Stack Engineer

Department: Technology

Location: London (hybrid)

Employment Type: FullTime

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! We’re looking for Full Stack Engineers to help rapidly grow our technology platform to deliver our ambitious business growth. 

In this role you will take ownership of both front-end and back-end systems, driving high-quality development and delivering technical solutions across the product lifecycle. While your primary focus will be coding and architecture design, you will also guide other developers, making technical decisions, and ensuring best practices are followed. You are both a hands-on individual contributor and a technical evangelist, collaborating closely with teams to build scalable, efficient, and robust 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.

• Define architecture and system design for web applications, ensuring scalability, security, and performance.

• Provide technical guidance and mentorship to other engineers, ensuring code quality through reviews and best practices.

• Design and implement responsive, user-friendly web interfaces using modern JavaScript frameworks (Next.js, React).

• Collaborate with UX/UI designers to turn designs into functional, intuitive interfaces.

About You:

• Expertise in JavaScript frameworks like React, Vue.js, or Angular, with proficiency in HTML, CSS, and responsive design principles.

• Strong experience with Node.js, Express.js, and building RESTful APIs or microservices.

• Proficiency in working with both SQL (PostgreSQL, MySQL) or NoSQL (MongoDB) databases.

• CI/CD & DevOps: Experience with integrating automated tests into CI/CD pipelines (e.g., Jenkins, CircleCI, GitLab CI) and familiarity with containerisation tools like Docker.

• You thrive when working as part of a team

• Comfortable in a fast-paced environment

• Have excellent written and verbal English skills

• Last but not least, you’ll have no ego!

What You’ll Get

• Competitive Base Salary

• Company Bonus Scheme

• Hybrid Working (3 days in office)

• Private Health Care (Bupa)

• Travel Insurance

• Market Leading Training Programme

• Recognition & Reward Scheme

• Annual Company Conference (previous destinations Vienna, Bologna, Dubrovnik and Thessaloniki)

• Regular Happy Hour / 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 [email protected].