{"id":2752270,"url":"https://alion.io/job/mdc-sofutoueaenjiniaphrsaabisupep-pkaifa","title":"【ソフトウェアエンジニア】PHRサービス「Pep Up」開発","company":{"id":174734,"name":"JMDC","domain":"jmdc.co.jp","url":"https://alion.io/company/jmdc","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"HERP","truth_index":{"grade":"D","score":48,"open_postings":32,"ghost_share":0.875,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-19T05:45:15Z"}},"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":".NET","optional":false},{"name":"AWS","optional":false},{"name":"BigQuery","optional":false},{"name":"Claude","optional":false},{"name":"Claude Code","optional":false},{"name":"Copilot","optional":false},{"name":"Datadog","optional":false},{"name":"Docker","optional":false},{"name":"ETL/ELT","optional":false},{"name":"GitHub","optional":false},{"name":"GitHub Actions","optional":false},{"name":"Google BigQuery","optional":false},{"name":"GraphQL","optional":false},{"name":"PostgreSQL","optional":false},{"name":"React Native","optional":false},{"name":"RSpec","optional":false},{"name":"Ruby","optional":false},{"name":"Ruby on Rails","optional":false},{"name":"Terraform","optional":false},{"name":"TypeScript","optional":false},{"name":"C#","optional":true},{"name":"JavaScript","optional":true},{"name":"React.js","optional":true}],"status":"live","first_seen_at":"2026-09-14T21:31:00Z","employer_posted_date":"2026-09-14","last_verified_at":"2026-10-19T20:57:05Z","board_verified":true,"closed_at":null,"days_open":35,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":34},"description":"ソフトウェアエンジニアPHRサービス「Pep Up」開発\n募集概要\n_JMDCとは→[会社紹介資料](https://speakerdeck.com/jmdc/about-jmdc)_\n_採用サイト→[JMDC CAREERS](https://recruit.jmdc.co.jp/)_\n_ブログ→[JMDC VOICE](https://blog.jmdc.co.jp/)、[JMDC TECH BLOG](https://techblog.jmdc.co.jp/)_\n_業績を知る→[決算説明資料](https://ssl4.eir-parts.net/doc/4483/ir%5Fmaterial%5Ffor%5Ffiscal%5Fym1/177669/00.pdf)_\n### 募集背景\n私たちは医療データ分析のパイオニアとして、健康データを統合管理するPHRサービス「Pep Up」（）を展開しています。\n日々の健康活動が当たり前になる社会をつくる--そのために、ユーザー基盤の拡大と健康活動の促進、蓄積データの高度な利活用を進めています。今回募集するポジションは、その実現に不可欠な「プロダクトを前に進める力」を担っていただく採用です。チケットをこなすエンジニアではなく、企画段階から開発に関わり、ユーザーだけでなく業務・開発プロセスも含めた現場の課題を自ら見つけ、改善提案や新機能実装を自分の手で進められる方にジョインいただきたいです！\n### 仕事内容\n「Pep Up」におけるバックエンド領域を中心に、設計・開発・運用をご担当いただきます。\n> _具体的な業務内容_\n* 「Pep Up」の新機能開発、および既存機能の改善\n* 開発環境のモダン化、監視体制の強化、テスト自動化の推進\n* フロントエンド・モバイルアプリ向けAPI基盤の構築\n* DWHと連携したデータ処理（ETL）基盤の構築・運用\n* （経験・ご志向に応じて）フロントエンド／モバイルアプリ実装への越境\n> _開発体制_\n* アジャイル：定期的な計画・振り返りを通じ、チームで意思決定を行います\n* 開発プロセス：GitHub Flowを採用。コードレビューを経て商用環境へデプロイ\n* DevOpsの推進：GitHub、GitHub Actions、Slack等のSaaSを活用し、自動化・省力化を徹底\n> _この仕事で得られるもの_\n* _大規模データに触れられる_ ：数千万〜数億件規模のデータを扱う高信頼性システムの構築・運用経験\n* _設計スキルが実践的に身につく_ ：フロントエンド・モバイル向けAPI基盤や非同期バッチ処理基盤の設計・構築を通じて、負荷の大きいシステムの設計を習得できます\n* _データレイク・DWH連携の経験_ ：ETL/DWH構築・運用を通じたデータ利活用の知見\n* _裁量を持って開発を進められる_ ：自社プロダクトだからこそ、企画段階から関わり、改善提案や新機能の実装を自分の裁量で進められます\n* _フルスタックへの越境機会_ ：Railsでの開発を軸に、興味・適性に応じてフロントエンドやアプリ開発にも領域を広げられます\n### 応募条件\n> _必須条件_\n* Ruby on Rails等のフレームワークを用いたWeb開発経験（3年以上目安）\n* 自ら課題を見つけ、周囲を巻き込みながら改善を進めた経験\n* 生成AIを活用した開発経験\n* 個人開発でも可。日常的にAIを使いこなし、開発の進め方そのものをアップデートしてきた経験\n> _歓迎条件_\n* フロントエンド（React/TypeScript）またはモバイルアプリ（React Native）の開発経験\n* マイクロサービス、または大規模データ処理（BigQuery, Glue等）の経験\n* パフォーマンスや拡張性を考慮したシステム設計・開発経験\n> _求める人物像_\n* 自ら正しい課題を見つけ、主体的に向き合える方\n* チームプレイを好み、多様性を尊重できる方\n* 失敗を恐れず挑戦できる方\n* 自分ごととして責任感を持てる方\n* 技術が好きで、学ぶことを楽しめる方\n> _技術スタック_\n* バックエンド：Ruby on Rails, GraphQL Ruby, RSpec\n* フロントエンド：React, TypeScript\n* アプリ：React Native\n* インフラ/DevOps：AWS, Docker, Terraform, GitHub Actions\n* データストア：PostgreSQL, Valkey\n* 監視：Datadog, BugSnag\n* AIエージェント：Gemini, Claude, Claude Code, Copilot\n### 働く環境\n* 技術書購入補助・イベント参加費補助\n* リモート勤務（原則週2回出社）\n* AI知見共有会を2週間に1回ペースで開催\n応募概要\n給与\n非公開 給与形態：月給制\n給与改定：年1回（7月）\n試用期間：3ヶ月（条件等は変わりません)\n別途残業代付与\n経験・能力を考慮の上、当社規定により優遇\n勤務地\n東京都港区芝大門2-5-5 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