A bit about us
At Gamma, we’re more than just a leader in Unified Communications as a Service (UCaaS). We’re a fast-moving technology organisation delivering innovative voice, data, and mobile solutions across Europe.
Our product and service portfolio is at the heart of what we do — powering reliable, scalable communications for thousands of businesses. Behind the scenes, our engineering teams design, build, and maintain the software systems that generate real business impact.
We combine the agility of a start-up mindset with the stability of a leading European business. Collaboration, ownership, and continuous improvement define how we work — and we’re always looking for people who want to build meaningful technology at scale.
Role Overview
We are seeking a talented and motivated FullStack JavaScript Developer to join our engineering team. You will be responsible for designing, developing, and maintaining high quality web applications using modern JavaScript technologies across both the frontend and backend. This role is ideal for someone who enjoys working end to end on solutions, has strong problem solving abilities, and thrives in a collaborative team environment.
Key Responsibilities
Develop and maintain scalable, high performance web applications
Build responsive user interfaces using React
Develop server side logic, APIs, and microservices using Node.js
Collaborate with product owners, designers, and other engineers to deliver high quality features
Participate in code reviews, testing, debugging, and optimization
Contribute to architectural discussions and technical decision making
Ensure code quality through best practices and automation where appropriate
Troubleshoot, diagnose, and resolve application issues across the stack
Must Have Skills \& Experience
3+ years of professional software development experience
Strong proficiency in JavaScript
Hands on experience with React
Solid backend development experience with Node.js
Experience working with REST APIs
Understanding of software engineering principles, version control, and CI/CD
Good to Have Skills
Experience with Angular
Experience with .NET (C#)
Familiarity with SQL databases (MySQL)
Knowledge of cloud platforms (AWS)
Experience with Docker or container technologies.
What do we offer you?
At Gamma, we believe in work–life balance, which is why we offer 25 days of annual leave, plus an extra day off for your birthday. We also provide a volunteer day, allowing you to support a cause that matters to you.
Family is important to us. With enhanced maternity and paternity pay, we support you at every stage of life. Our contributory pension scheme helps you plan for the future, with Gamma increasing contributions in line with yours.
Your wellbeing comes first. We offer group income protection, life assurance (four times your salary), and private medical insurance through Vitality, which extends to your immediate family.
We want you to share in our success, which is why we offer tax-efficient share save and share incentive plans.
We’re also committed to sustainability, offering an Electric Vehicle scheme through Octopus and a Cycle to Work scheme, making greener travel easier.
A few things to note
Unfortunately, we can’t offer visa sponsorship or relocation support for this role.
This role is hybrid, with office and home working flexibility.If you feel you could be a great fit for Gamma but don’t meet every requirement, we still encourage you to apply — you might be exactly who we’re looking for.
Gamma is an equal opportunity employer. We are committed to building inclusive, diverse teams where everyone can be their authentic selves. We welcome applications from all backgrounds and do not discriminate based on any protected characteristics.
Recruitment agencies: We work with a trusted group of recruitment partners and are not looking to expand this network at present. Please do not send speculative CVs.