Back End 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 Backend Engineers to help meaningfully scale our technology platform in support of our ambitious goals.

In this role, you'll take a leading hand in backend systems and services delivering high quality development, contributing to our architectural direction, and building robust technical solutions across the product lifecycle. Alongside your core focus on backend engineering and system design, you'll support other developers, contribute to technical decision making, and help foster a culture where engineering best practices are understood and shared.

You'll be a skilled individual contributor and a collaborative technical champion someone who enjoys working closely with cross functional teams to build scalable, efficient, and resilient systems using modern frameworks and tools.

Key Responsibilities

• Lead by example as a hands on backend developer, contributing to high quality, production grade codebases

• Shape backend architecture and system design with a focus on scalability, reliability, security, and performance

• Build and maintain RESTful APIs, microservices, and server side logic using modern backend frameworks

• Mentor and support other engineers, championing code quality through thoughtful reviews and shared best practices

• Partner with product, data, and platform teams to design and deliver backend solutions that serve real business needs

• Improve application performance, troubleshoot complex issues, and implement robust monitoring and logging solutions

• Contribute to DevOps processes, CI/CD pipelines, and infrastructure automation

About You

• Solid experience with Node.js, Express.js, or similar backend frameworks

• Strong background in designing and building RESTful APIs, microservices, and distributed backend systems

• Comfortable working with SQL (PostgreSQL, MySQL) or NoSQL (MongoDB) databases, including schema design and optimisation

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

• Experience with cloud platforms (AWS, GCP, Azure) and infrastructure-as-code would be a bonus

• You do your best work as part of a team and genuinely enjoy collaborating across disciplines

• Comfortable navigating a fast moving, evolving environment

• Excellent written and verbal English skills

• Collaborative and grounded you value collective success and create space for others to thrive

What You’ll Get

• Private Health Care (Bupa)

• Hybrid Working (3 days in office)

• Travel Insurance

• Competitive Base Salary

• Company Bonus Scheme

• Market-Leading Training Programme

• Recognition & Reward Scheme

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

• 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 [email protected].