Junior Software Engineer - Full Stack

Collinson; London; On-site; GBP 30,000 - 40,000; Full time

Job summary

A leading company in customer engagement solutions is seeking a Junior Software Engineer to join their London team. The role involves working on cloud-native technologies, contributing to front-end and back-end development. This is an excellent opportunity for early-career engineers to grow through mentorship and practical experience, fostering skills in a collaborative environment.

Qualifications

• Basic experience in JavaScript or TypeScript.
• Interest in frontend and backend development.
• Exposure to cloud concepts through coursework or projects.

Responsibilities

• Write clean, maintainable code in TypeScript for web applications.
• Work closely with squad to break down requirements and deliver software.
• Take part in code reviews and retrospectives to develop engineering skills.

Skills

JavaScript

TypeScript

Cloud Concepts

Frontend Development

Backend Development

Education

Basic understanding of web technologies

Tools

React

Node.js

GraphQL

AWS

Docker

Kubernetes

Job description

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Junior Software Engineer - Full Stack, London

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Client:

Collinson

Location:

London, United Kingdom

Job Category:

Other

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EU work permit required:

Yes

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Job Reference:

7ab97f4795b3

Job Views:

5

Posted:

29.06.2025

Expiry Date:

13.08.2025

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Job Description:

We use our expertise and products to craft customer experiences. Our range of services helps global brand acquire, engage and retain choice-rich customers.

Collinson is the global, privately-owned company dedicated to helping the world to travel with ease and confidence. The group offers a unique blend of industry and sector specialists who together provide market-leading airport experiences, loyalty and customer engagement, and insurance solutions for over 400 million consumers.

Collinson is the operator of Priority Pass, the world’s original and leading airport experiences programme. Travellers can access a network of 1,500+ lounges and travel experiences, including dining, retail, sleep and spa, in over 650 airports in 148 countries, helping to elevate the journey into something special. We work with the world’s leading payment networks, over 1,400 banks, 90 airlines and 20 hotel groups worldwide.

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 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 2,200 global colleagues.

Purpose of the job

As a Junior Software Engineer, you’ll be joining one of our cross-functional squads, working on greenfield products using modern, cloud-native technologies. You’ll learn by doing: building features, writing tests, and contributing to both front-end and back-end codebases, all with support from experienced engineers around you.

This is an ideal role if you're early in your engineering career and want to develop your skills in a team that values quality, collaboration, and continuous improvement. You’ll gain experience in real-world software delivery; this includes refining stories, pairing with teammates, shipping code, and seeing your work have real impact.

We’ll support your growth through mentorship, code reviews, and exposure to a wide range of modern technologies. You’ll also have the chance to explore how we use AI tools, cloud infrastructure, and automation in day-to-day development.

If you’re enthusiastic, pragmatic, and excited to become a great engineer, this is a solid place to start.


Key Responsibilities

Write clean, maintainable code (in TypeScript) for web applications and backend services.

Work closely with your squad to break down requirements, write tests, and deliver working software in small, frequent releases.

Pair with more experienced engineers, ask questions, and take on tasks that build your confidence and experience.

Contribute to a robust automated testing pipeline and learn how we use tools like GitHub Actions for safe deployments.

Gain experience deploying applications to AWS using Terraform, Docker, and Kubernetes.

Take part in code reviews and retrospectives, and actively seek feedback to level up your engineering skills.


Knowledge, skills and experience required

You have some experience writing software in JavaScript or TypeScript, and a basic understanding of web technologies.

You’re interested in both frontend and backend development, and excited to build across the stack with tools like React, Node.js, and GraphQL.

You’ve had some exposure to cloud concepts (e.g. AWS, Docker, APIs), even if only through coursework or personal projects.

You understand why testing matters and are keen to learn how to write reliable automated tests.

You’re collaborative, communicative, and enjoy working as part of a team to solve problems.

You’re proactive in developing your skills, and open to feedback, mentoring, and new technologies.

You genuinely enjoy building things, experimenting, and seeing your work make a difference.


Interview Process

We 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 one of our Engineering Managers 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 – You will do a simple technical test (at home), and we’ll review your solution.
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 (including a Principal Engineer, a Senior Engineer, and representatives from our Product and Delivery teams). We’ll also go through your technical test, and ask questions on some of your design decisions.

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: Take Action, 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 at [emailprotected]