About this role
Salary: £70,000 - 90,000 per year
Requirements: Strong commercial experience with GolangExpertise building microservices and distributed systemsProven technical leadership experienceStrong architecture and systems design skillsExperience with Docker, PostgreSQL, MongoDB, and secure CI/CDA security-first mindsetConfidence mentoring engineers and influencing technical directionExperience using AI to accelerate software deliveryBonus: cyber security or regulated industry experienceBonus: Kubernetes and cloud-native technologiesBonus: OWASP, ISO 27001, or IEC 62443 experienceBonus: open-source contributions Responsibilities: Define technical solutions alongside the Head of DevelopmentOwn detailed system design and technical specificationsLead backend development using Golang and modern microservicesMentor engineers and raise technical standardsChampion secure software engineering and DevSecOpsDrive AI-assisted development, from rapid prototyping through to code reviewBuild secure, scalable APIs and distributed systemsImprove performance, reliability, and engineering quality Technologies: AIBackendCI/CDCloudDevSecOpsDockerGolangKubernetesMongoDBOWASPPostgreSQLSecuritymicroservices More:
We are an innovative cyber security company scaling rapidly and looking for a Lead Principal Engineer to become the technical right hand to our Head of Development. This is a hands-on leadership role where we want you to shape architecture, influence engineering standards, and help drive the adoption of AI-assisted development. The position is office-based in South West London, five days per week, and offers a salary of £70,000 to £90,000 plus bonus. We are seeking someone who values genuine technical ownership and wants to make a meaningful impact on systems that help protect critical infrastructure around the world.
last updated 29 week of 2026