{"id":2707639,"url":"https://alion.io/job/gemba-advantage-seniorprincipal-software-engineer-2","title":"Senior/Principal Software Engineer","company":{"id":673636,"name":"Gemba Advantage","domain":"gembaadvantage.com","url":"https://alion.io/company/gembaadvantage","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Pinpoint","truth_index":null},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["London, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":70000,"max":100000,"currency":"GBP","period":"year","gross":null,"usd_annual":132565},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Angular","optional":false},{"name":"AWS","optional":false},{"name":"CI/CD","optional":false},{"name":"Docker","optional":false},{"name":"ElasticSearch","optional":false},{"name":"GitOps","optional":false},{"name":"Java","optional":false},{"name":"Kubernetes","optional":false},{"name":"Python","optional":false},{"name":"TypeScript","optional":false},{"name":"JavaScript","optional":true}],"status":"live","first_seen_at":"2026-10-15T13:03:49Z","employer_posted_date":"2026-10-15","last_verified_at":"2026-10-18T10:39:55Z","board_verified":true,"closed_at":null,"days_open":2,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":2},"description":"Please note: This role requires applicants to hold active, or recently active, SC or DV clearance.\n\n This role also requires applicants to be willing to work on-site up to 4 days per week.\n\nAt Gemba Advantage, we build secure, user-centred digital products for critical public sector organisations across the UK. Our teams work on complex, high-impact systems, the kind that have to be secure, scalable, and actually usable by the people who rely on them.\n\nWe’re looking for Senior and Principal Engineers who want to shape meaningful systems, influence technical direction, and work alongside capable people who care about doing the job properly. You’ll help design and build modern cloud-native services, guide engineering standards, and solve genuinely hard problems with our customers.\nThe Role:\nDesign and deliver secure, scalable software in small agile teams\nStay hands-on while shaping architecture and technical direction\nSet engineering standards and mentor others\nWork directly with customers to solve complex problems\nChampion modern engineering practices (cloud, CI/CD, DevSecOps)\nWhat you'll bring:\nActive, or recently active, SC or DV clearance (essential)\nStrong experience delivering production systems in complex environments\nDepth in at least one modern language (Java, TypeScript, Python, Go etc.)\nCloud/container experience and a security-first mindset\nConfidence influencing technical decisions and improving teams\n\nTech we commonly use\nJava • TypeScript • Python • Go\n React / Angular\n AWS • Kubernetes • Docker\n Elasticsearch • MongoDB • relational DBs\nCI/CD • GitOps • infrastructure as code\nWhy join Gemba?\nWe’re guided by four core values that make Gemba a great place to work:\nOur people are our most important asset, and we prioritise their needs.\nWe succeed and fail as a team, not as individuals.\nWe do the right thing and we do the thing right.\nWe keep an unwavering focus on the customer’s needs.\n\nAway from our values, Gemba offers an excellent and comprehensive package to our Gembans, including great salaries, meaningful perks, a culture of truly rewarding and celebrating success, amongst many other core benefits like flexible pensions and PMI.\n\nAs an Equal Opportunity Employer, we recognise, and studies confirm, that often underrepresented candidates in the workplace are less likely to apply to roles unless they meet all skills and experience of the position.\n\n At Gemba we celebrate diversity and are committed to creating a diverse and inclusive workplace, therefore we make sure that our recruitment and selection processes never discriminate based upon age, race, 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