Senior/Principal Software Engineer — Secure Cloud (SC/DV), Hybrid

Gemba Advantage; City Of London; Hybrid; GBP 70,000 - 100,000; Full time

Job summary

Gemba Advantage in London is seeking Senior and Principal Software Engineers to design and build secure, cloud-native services within small agile teams. You will stay hands-on while shaping architecture, set engineering standards, and mentor others as you work with customers to solve complex problems.

Applicants should hold active SC or DV clearance and be willing to work on-site up to four days per week, in a hybrid London environment.

Qualifications

• Active or recently active SC or DV clearance required.
• Experience delivering production systems in complex environments.
• Depth in at least one modern language (Java, TypeScript, Python, Go).
• Cloud/container experience with a security-first mindset.
• Ability to influence technical decisions and mentor teams.

Responsibilities

• Design and deliver secure, scalable software in small agile teams.
• Stay hands-on while shaping architecture and technical direction.
• Set engineering standards and mentor others.
• Work directly with customers to solve complex problems.
• Champion modern engineering practices (cloud, CI/CD, DevSecOps).

Skills

SC/DV clearance

Cloud experience

Security-first mindset

Mentoring

Influencing decisions

Tools

AWS

Kubernetes

Docker

CI/CD

GitOps

Job description

Gemba Advantage in London is seeking Senior and Principal Software Engineers to design and build secure, cloud-native services within small agile teams. You will stay hands-on while shaping architecture, set engineering standards, and mentor others as you work with customers to solve complex problems.

Applicants should hold active SC or DV clearance and be willing to work on-site up to four days per week, in a hybrid London environment.