{"id":1209080,"url":"https://alion.io/job/jolnir-w-hiniasofutoueaenjiniadx-eam","title":"シニアソフトウェアエンジニア（DX Team）","company":{"id":2677744,"name":"MJOLNIR SPACEWORKS","domain":"mjolnir-sw.com","url":"https://alion.io/company/mjolnir-sw","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"HERP","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"hybrid","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":410000,"max":750000,"currency":"JPY","period":"month","gross":null,"usd_annual":57180},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Digital Twin","optional":false},{"name":"Agile","optional":true},{"name":"AWS","optional":true},{"name":"GCP","optional":true},{"name":"Terraform","optional":true}],"status":"live","first_seen_at":"2026-07-01T02:29:50Z","employer_posted_date":"2026-07-01","last_verified_at":"2026-10-28T18:42:00Z","board_verified":true,"closed_at":null,"days_open":119,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":119},"description":"シニアソフトウェアエンジニア（DX Team）\nDescription\nDXの中核デジタル基盤をエンドツーエンドで構築するため、「シニアソフトウェアエンジニア（DX Team）」を募集しています。\n本ポジションは、優先度に応じてバックエンドシステム、データワークフロー、クラウド/インフラ領域を横断して取り組めるエンジニア向けです。\nエンジニアリング部⾨およびリーダーシップと直接連携し、ミッションシミュレーション、設計⾃動化、全社的な⽣産性向上を⽀える社内システムを実装していただきます。\n具体的には、\n・ミッション設計・解析・運⽤⽀援のための⾼度なマルチフィジックス⾶⾏シミュレーションおよびデジタルツインシステムの構築\n・⾼速なパラメトリック設計⽣成、最適化、反復を実現する⾃動化システムの開発\n・⾼度なFEM/CFD解析を 再現可能なエンジニアリングワークフローに統合する検証エンジンの構築\n・複数プロジェクト横断で連携し、開発ワークフローおよび社内オペレーションのボトルネックを特定‧⾃動化\n・DXが保有するシステムの信頼性‧セキュリティ‧可観測性の向上\n・DX組織の 成⻑に 合わせたドキュメント整備、エンジニアリング標準の整備、チームスケーリングへの貢献\n-----------------------------------------------------\nWe are hiring a Senior Software Engineer (DX Team)to help build our core digitalstack end-to-end.\nThis role is for an engineer who can move between backend systems, dataworkflows, and cloud/infrastructure tasks based on priority.\nYou will work directly with engineering and leadership to ship internal systems thatsupport mission simulation, design automation, and organization-wide productivity.\n・Build advanced multiphysics flight simulation and digital twin systems formission design, analysis, and operations support.\n・Develop automation systems for rapid parametric design generation,optimization, and iteration.\n・Build verification engines that integrate advanced FEM and CFD simulationsinto repeatable engineering workflows.\n・Collaborate across projects, identify and automate bottlenecks acrossengineering workflows and internal operations.\n・Improve reliability, security, and observability of DX-owned systems.\n・Support documentation, engineering standards, and team scaling as the DXorganization grows.\nRequirements\nDXの中核デジタル基盤をエンドツーエンドで構築するため、「シニアソフトウェアエンジニア（DX Team）」を募集しています。\n本ポジションは、優先度に応じてバックエンドシステム、データワークフロー、クラウド/インフラ領域を横断して取り組めるエンジニア向けです。\nエンジニアリング部⾨およびリーダーシップと直接連携し、ミッションシミュレーション、設計⾃動化、全社的な⽣産性向上を⽀える社内システムを実装していただきます。\n具体的には、\n・ミッション設計・解析・運⽤⽀援のための⾼度なマルチフィジックス⾶⾏シミュレーションおよびデジタルツインシステムの構築\n・⾼速なパラメトリック設計⽣成、最適化、反復を実現する⾃動化システムの開発\n・⾼度なFEM/CFD解析を 再現可能なエンジニアリングワークフローに統合する検証エンジンの構築\n・複数プロジェクト横断で連携し、開発ワークフローおよび社内オペレーションのボトルネックを特定‧⾃動化\n・DXが保有するシステムの信頼性‧セキュリティ‧可観測性の向上\n・DX組織の 成⻑に 合わせたドキュメント整備、エンジニアリング標準の整備、チームスケーリングへの貢献\n-----------------------------------------------------\nWe are hiring a Senior Software Engineer (DX Team)to help build our core digitalstack end-to-end.\nThis role is for an engineer who can move between backend systems, dataworkflows, and cloud/infrastructure tasks based on priority.\nYou will work directly with engineering and leadership to ship internal systems thatsupport mission simulation, design automation, and organization-wide productivity.\n・Build advanced multiphysics flight simulation and digital twin systems formission design, analysis, and operations support.\n・Develop automation systems for rapid parametric design generation,optimization, and iteration.\n・Build verification engines that integrate advanced FEM and CFD simulationsinto repeatable engineering workflows.\n・Collaborate across projects, identify and automate bottlenecks acrossengineering workflows and internal operations.\n・Improve reliability, security, and observability of DX-owned systems.\n・Support documentation, engineering standards, and team scaling as the DXorganization grows.\nPreferred Experiences\n歓迎する経験・スキル\n・科学技術計算（シミュレーション、最適化、数値計算）の実務経験\n・クラウド基盤（AWS/GCP）およびInfrastructure as Code（Terraform）の知識・経験\n・CAD/CAEの利用経験\n・アジャイル開発手法の実務経験\n-----------------------------------------------------\nPreferred skills\n・Experience with scientific simulation, optimization, numerical methods.\n・Familiarity with cloud platforms (AWS/GCP) and infrastructure as code(Terraform).\n・Exposure to security practices for internal platforms (secrets handling, accesscontrol, auditability).\n・Experience with CAD/CAE.\n・Experience in Agile methodology.\nWe are looking for\nWorking Conditions\nSalary\n月額41万円~75万円程度 / Approximately JPY 410,000 to 750,000 per month\n※⽉30時間相当の固定残業⼿当を含みます。/ Includes fixed overtime allowance equivalent to 30 hours per month.\nLocation\n東京・品川（駅から徒歩5分） ※関東エリアでのハイブリッド勤務 / Main office: Tokyo, Shinagawa (5 min walk from the station). ※Hybrid in the Kanto area, Japan.\n※リモート勤務：週3～4日 / Remote work: 3-4 days per week.\n※出社：週1日以上 / Onsite: at least 1 day per week\nJob Type\n正社員 / full-time employee\nWork hours\n09：00～18：00（休憩1時間）\n※詳細は就業規則による\nStandard start time at 09:00 (full details are provided incompany work rules).\n完全週休二日制（土・日） 年間休日125日\n・有給休暇（入社時付与）\n・リフレッシュ休暇\nAnnual holidays: 125 days.\nPaid leave: up to 20 days granted at joining, then 20 days from the followingfiscal year.\nrefresh leave\nProbation period\nあり（3ヶ月）\nBenefits\n社会保険：健康保険、厚生年金、雇用保険、労災保険\n諸手当：通勤手当（月額上限5万円）、残業手当\nSocial insurance: health insurance, pension, employment insurance, andworkers’ compensation insurance.\nAllowances: commuting allowance (monthly cap: JPY 50,000) and overtimeallowance.","description_format":"text","description_chars":4751,"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":[{"language":"Japanese","level":"Advanced (C1)","optional":false}]},"benefits":["Health insurance"],"hiring_locations":[{"name":"Japan","iso":"JP","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Aerospace Manufacturing","Launch 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