[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"article:sansan-engineer-team-infra":3},{"meta":4,"markdown":227},{"type":5,"articleId":6,"slug":6,"title":7,"titleEn":8,"category":9,"summary":10,"publishedAt":11,"image":12,"vocabulary":13,"source":224},"article","sansan-engineer-team-infra","Sansan Engineer Team：インフラ戦略部","Sansan Engineer Team: Infrastructure Strategy Division","software\u002Fcompanies\u002Fsansan","A profile of Sansan’s Infrastructure Strategy Division — the small, elite team responsible for planning and executing company-wide infrastructure across Sansan’s SaaS products.","2026-04-26T00:00:00Z","https:\u002F\u002Fimages.yamiyomi.com\u002Fsansan-engineer-team-infra.png",[14,19,23,27,31,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128,132,136,140,144,148,152,156,160,164,168,172,176,180,184,188,192,196,200,204,208,212,216,220],{"word":15,"reading":16,"meaning":17,"level":18},"不可欠","ふかけつ","indispensable, 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platform:N1}と[位置]{いち:position:N3}づけられる[施設]{しせつ:facility:N1}や[設備]{せつび:equipment:N2}。[人々]{ひとびと:people:N5}の[暮らし]{くらし:life, living:N3}に[無くてはならない]{なくてはならない:indispensable:N4}[存在]{そんざい:existence:N3}――。“インフラ”（インフラストラクチャー）という[単語]{たんご:word:N3}には、こうした[意味合い]{いみあい:nuance, meaning:N3}が[含まれて]{ふくまれて:to be included:N2}います。\n\n#en\nThe facilities and equipment positioned as the indispensable social foundations of our daily lives — things without which people’s lives cannot function. The word \"infra\" (infrastructure) carries this kind of nuance.\n::\n\n::heading\n[会社]{かいしゃ:company:N4}[全体]{ぜんたい:whole:N3}のインフラ[戦略]{せんりゃく:strategy:N2}を[担う]{になう:to shoulder:N2}[少数]{しょうすう:small number:N3}[精鋭]{せいえい:elite:N2}チーム\n\n#en\nA small, elite team shouldering the company-wide infrastructure strategy\n::\n\n::para\nSansan[株式会社]{かぶしきがいしゃ:Co., Ltd.:N1}で、[会社]{かいしゃ:company:N4}[全体]{ぜんたい:whole, entirety:N3}のインフラ[戦略]{せんりゃく:strategy:N2}の[立案]{りつあん:drafting, planning:N1}・[遂行]{すいこう:execution, carrying out:N1}に[責任]{せきにん:responsibility:N3}を[持つ]{もつ:to hold:N4}[部署]{ぶしょ:department, division:N2}がインフラ[戦略]{せんりゃく:strategy:N2}[部]{ぶ:department:N3}。2022[年]{ねん:year:N5}3[月]{がつ:month:N5}に[組成]{そせい:formed, organized:N3}されたばかりの[少数]{しょうすう:small number:N3}[精鋭]{せいえい:elite, select few:N2}のチームです。\n\n#en\nWithin Sansan Co., Ltd., the department responsible for drafting and executing company-wide infrastructure strategy is the Infrastructure Strategy Division. It is a small, elite team only just formed in March 2022.\n::\n\n::para\nインフラの[戦略]{せんりゃく:strategy:N2}[立案]{りつあん:planning:N1}においては、[事業]{じぎょう:business:N4}[全体]{ぜんたい:entirety:N3}の[方針]{ほうしん:policy, direction:N2}やサービスの[課題]{かだい:issue, challenge:N2}・[目標]{もくひょう:goal, target:N1}などをふまえて、プロダクトを[横断]{おうだん:cross-cutting:N3}した[計画]{けいかく:plan:N4}を[作成]{さくせい:create, prepare:N3}します。さらにインフラの[戦略]{せんりゃく:strategy:N2}[遂行]{すいこう:execution:N1}においても、[各]{かく:each:N2}プロダクトのインフラ[担当者]{たんとうしゃ:person in charge:N2}とコミュニケーションを[取り]{とり:to take:N3}ながら、[施策]{しさく:measure, initiative:N1}[実行]{じっこう:execution:N3}をリードします。\n\n#en\nFor strategy planning, they craft cross-product plans grounded in the overall business direction and the issues and goals of the services. For strategy execution, they lead the rollout of initiatives while communicating with the infrastructure leads of each product.\n::\n\n::callout\nSansanのインフラ[設計]{せっけい:design:N2}の[醍醐味]{だいごみ:true appeal, thrill:N1}として「システムの[多様性]{たようせい:diversity:N3}があること」や「[膨大]{ぼうだい:vast, huge:N1}な[量]{りょう:quantity:N2}のデータやトラフィックを[扱う]{あつかう:to handle:N1}こと」が[挙げられます]{あげられます:to be cited:N1}。\n\n#en\nThe true appeal of infrastructure design at Sansan can be summed up in two points: \"the diversity of systems\" and \"handling vast amounts of data and traffic.\"\n::\n\n::heading\n[多様]{たよう:diverse:N3}なシステムと[膨大]{ぼうだい:vast:N1}なデータ・トラフィック\n\n#en\nDiverse systems and vast data and traffic\n::\n\n::para\nSansanはウェブアプリやモバイルアプリをユーザーに[提供]{ていきょう:provide:N1}するだけではなく、[紙]{かみ:paper:N4}の[名刺]{めいし:business card:N2}や[請求書]{せいきゅうしょ:invoice:N1}、[契約書]{けいやくしょ:contract:N1}などをデータ[化]{か:-ification:N3}するシステムや、[他社]{たしゃ:other companies:N3}サービスとの[連携]{れんけい:integration, linkage:N1}のためのシステムも[構築]{こうちく:build, construct:N2}しています。さまざまな[要件]{ようけん:requirement:N3}やニーズを[実現]{じつげん:realize, achieve:N3}するために、[採用]{さいよう:adopt, employ:N2}するインフラのコンポーネントも[必然的]{ひつぜんてき:inevitably:N3}に[多様性]{たようせい:diversity:N3}が[高く]{たかく:high:N5}なります。\n\n#en\nSansan does not just offer web and mobile apps to users: it also builds systems that digitize paper business cards, invoices, and contracts, as well as systems for integrating with third-party services. To meet such varied requirements and needs, the infrastructure components we adopt inevitably become highly diverse.\n::\n\n::para\nまた、[営業]{えいぎょう:sales:N2}DXサービス「Sansan」の[契約]{けいやく:contract:N1}[件数]{けんすう:number of cases:N3}は8,000[件]{けん:cases:N3}を[超えて]{こえて:to exceed:N2}おり、BtoB SaaSとしては[国内]{こくない:domestic:N3}[最大級]{さいだいきゅう:largest-class:N1}の[規模]{きぼ:scale:N1}を[誇ります]{ほこります:to boast:N1}。[他]{ほか:other:N3}にも、キャリアプロフィール「Eight」やクラウド[請求書]{せいきゅうしょ:invoice:N1}[受領]{じゅりょう:receipt:N2}サービス「Bill One」など、[成長]{せいちょう:growth:N3}[著しい]{いちじるしい:remarkable:N2}サービスも[開発]{かいはつ:development:N4}・[運用]{うんよう:operation:N4}しています。\n\n#en\nAdditionally, the sales DX service \"Sansan\" has over 8,000 contracts, boasting one of the largest scales for a domestic BtoB SaaS. We also develop and operate other rapidly growing services, such as the career profile \"Eight\" and the cloud invoice-receipt service \"Bill One.\"\n::\n\n::para\n[扱う]{あつかう:to handle:N1}データやトラフィックの[規模]{きぼ:scale:N1}は[非常に]{ひじょうに:extremely:N3}[大きい]{おおきい:large:N5}です。そのためサービスを[安定的]{あんていてき:stably:N3}に[稼働]{かどう:operate, run:N1}させるために、[高い]{たかい:high:N5}[可用性]{かようせい:availability:N3}や[信頼性]{しんらいせい:reliability:N3}、[機密性]{きみつせい:confidentiality:N1}を[実現]{じつげん:achieve, realize:N3}できるインフラ[設計]{せっけい:design:N2}が[求められます]{もとめられます:to be required:N3}。\n\n#en\nThe scale of data and traffic we handle is enormous. To keep the services running stably, we need infrastructure designs that can deliver high availability, reliability, and confidentiality.\n::\n\n::heading\n[壁]{かべ:wall:N1}を[越えて]{こえて:to overcome:N3}[磨かれる]{みがかれる:to be polished:N2}スキル\n\n#en\nSkills sharpened by overcoming the walls\n::\n\n::para\nこうした[技術]{ぎじゅつ:technology:N2}[要件]{ようけん:requirement:N3}を[実現]{じつげん:realize:N3}する[過程]{かてい:process:N3}では、[数多く]{かずおおく:numerous:N3}の[困難]{こんなん:difficulty:N3}が[立ちはだかります]{たちはだかります:to stand in the way:N4}。しかし、そうした[壁]{かべ:wall, barrier:N1}を[乗り越えて]{のりこえて:to overcome:N3}いくなかで、インフラエンジニアとしてのスキルが[洗練]{せんれん:refined, polished:N2}されていきます。\n\n#en\nIn the process of realizing such technical requirements, countless difficulties stand in the way. But as we overcome those walls, our skills as infrastructure engineers are sharpened.\n::\n\n::para\nそして、Sansanのエンジニアリングの[最大]{さいだい:greatest:N3}の[特徴]{とくちょう:characteristic:N1}は、インフラエンジニアも「プロダクトを[成長]{せいちょう:grow:N3}させ、ユーザーに[価値]{かち:value:N1}を[届ける]{とどける:to deliver:N2}こと」を[何より]{なにより:above all:N5}[大切に]{たいせつに:importantly:N4}していることです。「[人々]{ひとびと:people:N5}の[暮らし]{くらし:life:N3}に[無くてはならない]{なくてはならない:indispensable:N4}[存在]{そんざい:existence:N3}」を[実現]{じつげん:realize:N3}するために、Sansanのインフラエンジニアはシステムの[土台]{どだい:foundation, base:N4}と[向き合い]{むきあい:to face:N3}[続けます]{つづけます:to continue:N3}。[私]{わたし:we:N4}たちの[構築]{こうちく:built:N2}したインフラが、[今日]{きょう:today:N5}もどこかで[誰]{だれ:someone:N3}かの[生活]{せいかつ:life:N3}や[仕事]{しごと:work:N4}を[支えて]{ささえて:to support:N3}いるのです。\n\n#en\nAnd the greatest feature of engineering at Sansan is that even infrastructure engineers place above all else the mission of \"growing the product and delivering value to users.\" To make real our ideal of being \"something indispensable to people’s lives,\" Sansan’s infrastructure engineers keep facing the foundation of the systems. The infrastructure we have built is, somewhere today, supporting someone’s life and work.\n::\n"]