Senior Software Engineer

Collinson Group

  • London
  • Permanent
  • Full-time
  • 27 days ago
CompanyCollinson Group is a global leader in driving loyalty and engagement for many of the world's largest companies. Predominantly through the provision of travel related benefits within a market leading digital travel ecosystem. The group offers a unique blend of industry and sector specialists who together provide market-leading experience in delivering products and services across four core capabilities: Loyalty, Lifestyle Benefits and Insurance.The group provides unrivalled insight and expertise around affluent consumers and frequent travellers, creating and delivering products and services now accessible to over 400m end consumers.We have more than 25 years' experience, with 28 global locations, servicing over 800 clients in 170 countries, employing 1,800 people.We have been bringing innovation to the market since inception - from launching the first independent global VIP lounge access Programme, Priority Pass to being the first to sell direct travel insurance in the UK through Columbus Direct and creating the first loyalty agency of its kind in the travel sector with ICLP. Today we still invest heavily in innovation to ensure that we continue to deliver superior customer experiences.Key clients include: Visa, Mastercard, American Express, Cathay Pacific, British Airways, LATAM, Flying Blue, Accor, EasyJet, HSBC, Chase, HDFC.Our mission is focused on doing good beyond profit, which for us means we seek out opportunities for our people to share in our success and that we give back to the communities and people within which we work.Never short of ambition, the success of our business is delivered through the diverse and talented team of over 1,800 colleagues globally.The RoleAre you ready to take your engineering career to the next level? We're looking for a Senior Software Engineer to join our high-performing, cross-functional squad, where innovation meets impact. You'll play a central role in building scalable, cloud-native systems using the latest in AI, automation, and modern architecture.This is more than just a coding job-you'll be deeply involved in product development, architectural decisions, and best-practice engineering culture. If you're passionate about writing clean, well-tested code and collaborating with talented peers, this is your opportunity to make a real difference.What you will be doing:
  • Code That Matters: Design, build, and maintain robust full-stack solutions across our platform using TypeScript, AWS, GraphQL, and more.
  • Own the Stack: From frontend to backend to infrastructure, you'll take full ownership of the code you write and the systems you build.
  • Innovation First: Help us integrate AI and automation into our products, solving real-world problems in smarter ways.
  • Collaborate & Learn: Engage in pair programming, code reviews, and technical discussions that drive engineering excellence.
  • Build It Right: Apply a test-driven mindset with robust automated testing and CI/CD pipelines (GitHub Actions).
  • Keep It Running: Ensure systems are secure, scalable, observable (hello, DataDog), and performant in production.
What we are looking for:
  • Senior-Level Expertise: Proven experience as a Senior Engineer or multiple years in software engineering roles.
  • Full-Stack Fluency: Deep understanding of JavaScript/TypeScript, Node.js, React, GraphQL, and AWS (EKS, Lambda, RDS).
  • API & Data Mastery: Skilled in building resilient APIs (REST/GraphQL) and managing backend services & databases.
  • TDD Enthusiast: Proficient with testing frameworks like Jest, Pact, and a strong belief in quality-first development.
  • CI/CD Experience: You've shipped code using GitHub Actions (or similar), and you know how to keep the pipeline green.
  • Observability & Reliability: Experience with monitoring and alerting tools like DataDog.
  • Proactive Problem-Solver: You take initiative, work independently, and thrive on solving complex technical challenges.
Interview ProcessWe want our process to be fair and transparent, so it's only right that we tell you what the various interview stages are:Stage 1 - We'll do a screener call with our recruitment team, where you can learn a bit more about Collinson, our values and we can confirm what you're looking for in a new role.Stage 2 - We'll do a short call with the VP of Software Engineering for around 30 minutes, who will tell you more about the team, our projects and ask questions about your career history and suitability for the role.Stage 3 - We'll ask you to do a tech test at home. It will take around an hour.Stage 4 - This is final and main stage, where we'll meet you for around 2 hours, and you'll get to spend time with different members of the engineering team. We'll talk through your technical test and ask questions about your solution, alongside more job-specific scenarios.Collinson is an equal opportunity employer and welcomes differences in all their forms including: colour, race, ethnicity, gender identity, sexual orientation, neurodivergence, family status, age, individuals with disabilities and people from all backgrounds, cultures and experiences as we strongly believe this contributes to our on-going success.We are focused on continually evolving our purpose driven, high performing culture, providing an environment where our people have the opportunity to achieve their full potential and do interesting and meaningful work. Our company values are: Act smarter, Do the right thing, One team and Be insight led. These help guide everything we do internally in terms of how we think, act and interact, right through to how we deliver value to our customers and clients.In your application, please feel free to note which pronouns you use (For example - she/her/hers, he/him/his, they/them/theirs, etc).If you need any extra support throughout the interview process, then please email us atWe also have our very own Beacons (Domestic Abuse Advisors) supporting within each of our global offices. Our Beacons will be your point of contact if you or someone you know needs support.

Collinson Group