{"id":4004517,"url":"https://alion.io/job/mujin-backend-software-engineer-go","title":"Backend Software Engineer (Go)","company":{"id":9678,"name":"Mujin","domain":"mujin.co.jp","url":"https://alion.io/company/mujin","size_band":"201-500","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"A","score":89,"open_postings":59,"ghost_share":0.102,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":218,"computed_at":"2026-11-09T06:03:00Z"}},"role":"Backend","role_family":"Backend","seniority":null,"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":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AWS","optional":false},{"name":"Go","optional":false},{"name":"GraphQL","optional":false},{"name":"Kubernetes","optional":false},{"name":"PostgreSQL","optional":false},{"name":"WebSockets","optional":false}],"status":"live","first_seen_at":"2026-11-10T04:47:38Z","employer_posted_date":"2026-11-10","last_verified_at":"2026-11-10T06:23:09Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"A Quick Overview of What This Role Entails\nMujin Portal is a cloud-based product that enables customers and Mujin engineers to manage and support Mujin robotic systems deployed across multiple sites.\nWith Portal continuing to expand, the team is focused on both new product capabilities and scaling the platform to support a growing fleet of connected Mujin Controllers. This includes areas such as controller connectivity and remote access, data synchronization and storage, backups, monitoring and dashboards, virtual controllers, and customer support workflows.\nAs a Backend Software Engineer, you will design and develop backend services that power these capabilities. You will work with large volumes of data generated by connected robotic systems and take ownership of services and features from design through implementation and ongoing improvement.\nResponsibilities\nDesign, develop, and maintain backend services for Mujin Portal using Go\nBuild GraphQL APIs and services for managing fleets of connected Mujin Controllers\nDevelop systems for collecting, synchronizing, storing, and processing Controller data\nBuild secure remote access, authentication, and multi-tenant access control\nDesign and improve backend architecture for scalability, reliability, and maintainability\nIndependently own backend features or services from design through implementation and maintenance\nMinimum Requirements\nHands-on experience designing and developing backend services in Go\nStrong experience with PostgreSQL or other relational databases, and data modeling\nSolid understanding of system design and software architecture\nAbility to independently own and deliver backend features or services\nStrong problem-solving and communication skills\nPreferred Requirements\nBackground in building distributed or cloud-based backend systems\nFamiliarity with concurrent or asynchronous programming\nExperience with GraphQL, WebSockets, or other real-time APIs\nExperience with authentication and authorization (OAuth 2.0, OIDC) and secure system design\nHands-on exposure to Kubernetes and AWS or other major cloud platforms\nExperience with IoT, robotics, or systems connecting cloud software with physical devices","description_format":"text","description_chars":2192,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Logistics & Warehouse Robotics","Industrial Robotics","Robotic Software & Control 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