Lead Software Engineer - Cloud-Native API & Platform

Gamma; Manchester; On-site; GBP 90,000 - 120,000; Full time

Benefits offered by this job

25 days annual leave

Private medical insurance

Pension contributions

Parental leave

Life assurance

Share save and incentive plans

Electric Vehicle/Cycle scheme

Employee discounts

Volunteer day

Job summary

Gamma is seeking a Lead Software Engineer to drive the development of Group Products, including OSS/BSS and UCaaS/CCaaS solutions. You’ll lead complex work across the platform, ensuring scalable, secure, high-performing systems while mentoring engineers and promoting best practices.

You’ll collaborate with product, architecture, and engineering teams to design secure APIs, review designs, and guide CI/CD and testing. Strong communication and leadership are key to success in this role.

Qualifications

• Strong experience with TypeScript, Node.js, and modern frontend frameworks such as React or Angular.
• Deep understanding of software architecture, design patterns, and API design principles.
• Experience working with CI/CD pipelines, automated testing frameworks (e.g. Jest, Playwright), and version control.
• Proven experience running large-scale production systems in AWS and working with Kubernetes/containerisation.
• Strong debugging, performance optimisation, and problem-solving skills across distributed systems.
• Experience mentoring engineers and contributing to technical leadership within teams.
• Knowledge of observability, monitoring, and site reliability engineering practices.
• Experience with Java and/or telecoms technologies (e.g. VoIP, WebRTC) is highly beneficial.

Responsibilities

• Leading technically complex development across the platform, building new features and maintaining existing systems using TypeScript, Node.js, and React
• Collaborating with product, architects, and engineering teams to scope, plan, and estimate solutions that are scalable and future-proof
• Designing and developing secure, high-performance APIs and integrating third-party tools and services
• Producing and reviewing detailed Solution Design documentation, ensuring consideration of security, performance, and system-wide impact
• Driving high standards through code reviews, mentoring engineers, and contributing to CI/CD and testing best practices
• Applying site reliability engineering principles to improve observability, resilience, and incident response
• Monitoring, profiling, and optimising application performance, including capacity planning to meet SLAs
• Identifying technical debt and recommending improvements to systems, processes, and tooling

Skills

TypeScript

Node.js

React

Angular

Software architecture

API design

CI/CD

Testing frameworks

AWS

Kubernetes

Jest

Playwright

Observability

Mentoring

VoIP/WebRTC

Tools

AWS

Kubernetes

Jest

Playwright

Job description

Gamma is seeking a Lead Software Engineer to drive the development of Group Products, including OSS/BSS and UCaaS/CCaaS solutions. You’ll lead complex work across the platform, ensuring scalable, secure, high-performing systems while mentoring engineers and promoting best practices.

You’ll collaborate with product, architecture, and engineering teams to design secure APIs, review designs, and guide CI/CD and testing. Strong communication and leadership are key to success in this role.