Senior Full Stack Engineer Salary £80k to £85k + Bonus and excellent pension/ benefits Location: Central London About the client Our client is an infrastructure communications technology company providing end-to-end fibre solutions and now Cloud solutions, Wi-Fi, Firewalls/Security, SD WAN, Managed LAN and UC services for businesses and wholesale/carrier/channel organisations across London. What you will do: We are looking for a Senior Full Stack Engineer to own end-to-end delivery of critical features, drive architectural excellence, and establish best practices. You ll work hands-on across React, Node.js, and Python services, own our CI/CD and DevOps processes, integrate with network-centric systems, and mentor the wider engineering team as we grow. Key responsibilities: Architect, build and implement scalable features in our React frontend and Node.js / Python backend (FastAPI, Celery) Design integrations with network devices, IPAM, monitoring platforms, Wi-Fi authentication systems, CRMs and partnered PropTech tools Continually hone and perfect our homegrown DevOps and CI/CD processes by further developing GitHub Actions pipelines, Terraform definitions and observability integrations. Ensure quality and reliability: establish testing best practices (unit, integration, end-to-end), conduct code reviews and demand high quality standards Shape and refine our cloud-native platform to optimise performance, security and scalability Mentor and lead intermediate developers, ..... full job details .....