{"id":4073972,"url":"https://alion.io/job/caci-senior-aws-platform-engineer","title":"Senior AWS Platform Engineer","company":{"id":1760862,"name":"CACI","domain":"caci.co.uk","url":"https://alion.io/company/caci-co-uk","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Dayforce","truth_index":{"grade":"B","score":80,"open_postings":11,"ghost_share":0,"stale_share":0.818,"repost_share":0,"time_to_fill_p50_days":46,"computed_at":"2026-11-11T05:49:22Z"}},"role":"DevOps","role_family":"DevOps","seniority":"senior","employment_type":null,"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":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon ECS","optional":false},{"name":"Amazon EKS","optional":false},{"name":"AWS","optional":false},{"name":"AWS CDK","optional":false},{"name":"CI/CD","optional":false},{"name":"CloudFormation","optional":false},{"name":"Grafana","optional":false},{"name":"IAM","optional":false},{"name":"Kubernetes","optional":false},{"name":"Python","optional":false},{"name":"Terraform","optional":false}],"status":"live","first_seen_at":"2026-11-11T01:00:00Z","employer_posted_date":"2026-11-11","last_verified_at":"2026-11-11T14:41:48Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Role: Senior Platform Engineer\nJob Type: Permanent\nBase Office Locations: Bromley or Kensington\nHybrid: Work from home or the Office, with some client based travel\nSC - Must have or be eligible for UK Security Clearance\n\nAt IdentityE2E (a CACI Business), we're delivering secure, scalable AWS platforms that support critical public sector and national infrastructure programmes. We're looking for a Senior AWS Platform Engineer to help shape cloud architectures, influence technical direction and work alongside expert engineers on complex, high-impact projects.\n\nKey Responsibilities\nActively support the architecture and evolution of AWS platforms at scale, leveraging AWS Organisations, Landing Zones and multi-account best practices. \nDevelop and maintain Infrastructure as Code solutions using Terraform, CloudFormation, and AWS CDK.\nChampion security, compliance, and observability by integrating services like AWS Security Hub, GuardDuty, and Inspector. \nDesign CI/CD pipelines to enable seamless deployments and self-service models for customers. \nInnovate with AWS Networking, KMS, IAM and container orchestration (Kubernetes, ECS). \nMentor and collaborate with a team of talented engineers\n\nWhat we're looking for: \nDeep expertise in multi-tenanted platform architectures and multi-account AWS setups. \nProficiency in Python, Go, or similar languages for automation and scripting as well as Terraform\nExpert-level knowledge of AWS Networking, TLS, and security best practices. \nExperience with container orchestration (Kubernetes, EKS) and observability tools(Grafana, ELK). \nA passion for innovation, problem-solving, and delivering high-impact solutions.\nA strong understanding of security best practices\n\nWhy join?\nWork on large-scale, cutting-edge AWS architectures that push the limits of scalability, security, and innovation, ensuring every day presents a new technical challenge. \nCollaborative Problem Solving: Engage with a team of experts to tackle complex problems in highly regulated environments, where innovative solutions make a tangible impact.\nJoin a culture that celebrates pushing boundaries, where engineers are encouraged to experiment, take ownership, and grow through solving real world technical puzzles. \nCross-Disciplinary Collaboration: Work alongside AWS teams, partner organisations, and other engineers to create industry-defining cloud solutions. \n25 days holiday + bank holidays\nL&D package, including L&D days, support with certifications & much more\n\nEqual Opportunities:\n\nCACI is proud to be an equal opportunities employer. 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