{"id":3435583,"url":"https://alion.io/job/lockheed-martin-senior-software-engineer-4","title":"Senior Software Engineer","company":{"id":37086,"name":"Lockheed Martin","domain":"lockheedmartin.com","url":"https://alion.io/company/lockheedmartin","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Eightfold","truth_index":{"grade":"A","score":96,"open_postings":2032,"ghost_share":0.01,"stale_share":0,"repost_share":0.213,"time_to_fill_p50_days":33,"computed_at":"2026-10-30T05:48:23Z"}},"role":"Backend","role_family":"Backend","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Gloucester, United Kingdom"],"countries":["GB"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":87000,"max_usd":168000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":139},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"Git","optional":false},{"name":"JavaScript","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false},{"name":"Rust","optional":false},{"name":"TypeScript","optional":false},{"name":"AI Agents","optional":true},{"name":"Apache NiFi","optional":true},{"name":"AWS","optional":true},{"name":"Confluence","optional":true},{"name":"ElasticSearch","optional":true},{"name":"GitLab","optional":true},{"name":"Jira","optional":true},{"name":"Kibana","optional":true},{"name":"Next.js","optional":true},{"name":"React.js","optional":true}],"status":"live","first_seen_at":"2026-08-26T14:51:28Z","employer_posted_date":"2026-09-02","last_verified_at":"2026-10-30T04:53:04Z","board_verified":true,"closed_at":null,"days_open":64,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":64},"description":"About the role\nWe’re growing our Gloucester team and have several opportunities for Senior Software Engineers to work across our Defence, Cyber and Intelligence programmes.\nYou’ll help create and improve secure software systems and applications that safeguard digital infrastructure across the UK. You may already specialise in a particular area, or you may enjoy working across several parts of software development - either is welcome.\nThis is a senior role, so we’re looking for strong engineering practice, sound technical judgement and experience taking ownership of complex work. We don’t expect you to arrive knowing every technology we use; we welcome people with a passion for learning and continuous improvement.\nThe role\nYou’ll work alongside colleagues and our customers to understand complex needs and requirements, turning them into well-engineered technical solutions.\nDepending on your strengths and interests, you could specialise in one area or contribute across several parts of the development lifecycle. Your work may include:\nDesigning, building, testing, debugging and documenting software across its lifecycle.\nInvestigating problems and improving the reliability, security and maintainability of our systems.\nImproving how software is built and delivered through infrastructure as code, CI/CD and test automation.\nContributing your experience to technical decisions, reviews and collaborative problem-solving.\nMentoring junior or new staff on project.\nLearning and development\nYou’ll have access to internal training and development, education-assistance programmes and reimbursement for relevant professional memberships. We’ll help you build familiarity with our projects and technologies while giving you opportunities to deepen your existing strengths.\nWhat we offer\nFlexible working, including the option to work a four-day week with Fridays off, depending on business requirements.\nSecurity clearance\nThis role requires you to be able to obtain and maintain eDV security clearance.\nYou don’t need to hold eDV clearance when you apply. If you don’t currently have it, we’ll support you through the application process.\nRequired skills, qualifications and experience\nProven experience delivering software in a professional engineering environment.\nConfidence developing software in at least one modern language, such as Java, Python, C++, Go, Rust, JavaScript or TypeScript.\nPractical experience with Linux, Git and automated unit testing.\nThe ability to work through technical trade-offs and explain your choices along the way to a mix of stakeholders.\n A collaborative approach and a dedication to continuous learning and team improvement.\nWe want to hear about examples of how you’ve delivered complex software, exercised technical judgement and taken responsibility for the quality of your work.\nDesired skills\nCloud platforms, particularly AWS.\nAutomated GitLab delivery pipelines and infrastructure as code.\nMicroservices, serverless architectures and cloud migration.\nRelational and NoSQL databases, data integration and search technologies.\nWeb and application frameworks such as React, Express and Next.js\nTools including Gitlab, NiFi, Elasticsearch, Kibana, Jira and Confluence\nAI coding assistants, agentic coding and ML tooling\nExperience in some of these areas is advantageous, but this is not a checklist, and we don’t expect one person to know them all. 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