Job Description

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.
Who are we looking for?
Software Engineers are responsible for developing and maintaining Gamma’s proprietary UCaaS & CCaaS platforms, building AI-driven features and scalable cloud-native services across backend systems and web applications.
This role is ideal for engineers interested in AI, serverless architectures, and modern real-time platforms operating at scale.
What will you be doing day-to-day?
• Collaborate with product managers, designers, and engineers to scope, plan, and deliver scalable AI-powered solutions.
• Develop new features and functionality across the platform using TypeScript, Node.js, and React.
• Build event-driven, serverless applications using AWS technologies including Lambda, API Gateway, and Step Functions.
• Integrate AI services and foundation models using AWS Bedrock and related tooling.
• Develop REST APIs using best practice standards and conventions.
• Produce solution design documentation covering security, scalability, testing, and platform impacts.
• Implement automated testing using unit and end-to-end frameworks (e.g. Jest, Playwright).
• Participate in peer reviews, CI/CD processes, and deployment activities.
• Integrate with third-party services and internal platforms while ensuring reliability and observability.
• Contribute to improving engineering practices, platform resilience, and technical standards.
What You’ll Need
• Strong experience using TypeScript / Node.js.
• Experience developing modern frontend applications using React.
• Good understanding of API design and distributed systems.
• Experience with automated testing frameworks (e.g. Jest, Playwright).
• Experience working with CI/CD pipelines.
• Experience working with AWS or similar cloud platforms.
• Knowledge or interest in serverless and event-driven architectures.
• Exposure to AI/LLM technologies, AWS Bedrock, or AI integration patterns is highly beneficial.
• Experience with Docker/Kubernetes is beneficial but not essential.
• Experience working on high-scale, real-time platforms is advantageous.
• VoIP/WebRTC experience is a plus.
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.
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