{"id":1574688,"url":"https://alion.io/job/hennge-platform-engineer-infrastructurekubernetes-aws-hennge-platform-team-2","title":"Platform Engineer (Infrastructure/Kubernetes & AWS) - HENNGE Platform Team","company":{"id":320,"name":"HENNGE","domain":"hennge.com","url":"https://alion.io/company/hennge","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":null,"truth_index":null},"role":"DevOps","role_family":"DevOps","seniority":"middle","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Tokyo, Japan"],"countries":["JP"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":8000000,"max":10500000,"currency":"JPY","period":"year","gross":null,"usd_annual":68030},"salary_estimate":null,"experience_years_min":3,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Amazon EKS","optional":false},{"name":"ArgoCD","optional":false},{"name":"AWS","optional":false},{"name":"Backstage","optional":false},{"name":"GitHub","optional":false},{"name":"GitHub Actions","optional":false},{"name":"Helm","optional":false},{"name":"Kubernetes","optional":false},{"name":"Kustomize","optional":false},{"name":"Kyverno","optional":false},{"name":"Terraform","optional":false},{"name":"Grafana","optional":true},{"name":"OpenTelemetry","optional":true}],"status":"live","first_seen_at":"2026-10-01T09:21:58Z","employer_posted_date":null,"last_verified_at":"2026-10-01T09:21:58Z","board_verified":false,"closed_at":null,"days_open":19,"trust":{"level":"not_scored","repost_count":null,"flags":[],"days_open":19},"description":"We are looking for a Platform engineer to take ownership of Internal Developer Platform (IDP)\ndevelopment for powering HENNGE One, our flagship cloud-security suite serving over 2.8 million\nusers globally. As a B2B SaaS leader in Japan, we provide mission-critical security solutions that\nempower enterprises to work safely from anywhere.\nIn this role, you will join the Platform team, to build,evolve and maintain our Internal Developer\nPlatform leveraging cloud native technologies (Kubernetes) and AWS services. Your mission is to\nempower our product development teams to build, ship and run their applications securely and\nefficiently. To succeed in this role, you will bring a strong technical foundation in Kubernetes and\nAWS.\nTech Stack: Kubernetes (EKS), AWS, ArgoCD, Terraform, Backstage, Kyverno\nResponsibilities\nDesign, develop, and maintain Internal Developer Platform (IDP) using Kubernetes and AWS services\nContribute to technical discussion to help define the architecture, roadmap and the future direction of the IDP\nCollaborate with product development teams to seamlessly onboard their product onto the IDP.\nParticipate actively in code reviews, discussions and technical decision-making\nRequirements\n3 years of experience working with production Kubernetes on cloud, preferably AWS EKS. (Note: please mention the exact years of professional experience with Kubernetes in your cv).\n3 years of experience building and managing AWS infrastructure with Terraform.\nHands-on experience with ArgoCD and Kustomize and authoring/deploying Helm charts.\nExperience building and maintaining web application pipelines using GitHub Actions.\nAbility to take technical initiatives, mentor junior engineers, and work collaboratively in a team environment.\nNice to haves\nWhile not specifically required, tell us if you have any of the following.\nDegree in Computer Science or related technical field.\nRelevant industry certifications, such as:Certified Kubernetes Administrator (CKA), Certified Kubernetes Application Developer (CKAD), or Certified Cloud Native Platform Engineer (CNPE)\nAWS Certified Solutions Architect (Associate/Professional) or AWS Certified Security - Specialty\nHashiCorp Certified: Terraform Associate\n\nHands-on experience building custom Kubernetes controllers and implementing policy management tools like Kyverno .\nExperience with Backstage (or similar Internal Developer Portal frameworks)\nExperience setting up and managing observability tools (OpenTelemetry, Grafana / LGTM stack).\nStrong understanding of AWS security best practices.\nTrack record of contributing to CNCF open-source projects or speaking at cloud-native tech conferences.\nStrong technical communication and writing skills (runbooks, documentation) to collaborate effectively across Platform and Product teams via code reviews and technical discussions.\nConversational Japanese to coordinate with external vendors (e.g. AWS Japan), cross-functional divisions, and local 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