[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"article:sansan-interview-110":3},{"meta":4,"markdown":231},{"type":5,"articleId":6,"slug":6,"title":7,"titleEn":8,"category":9,"summary":10,"publishedAt":11,"image":12,"vocabulary":13,"source":228},"article","sansan-interview-110","SIer出身者が活躍する理由とは。Sansanを牽引するプロダクト開発に挑み続ける","Why people from SIer backgrounds thrive: taking on the product development that drives Sansan","software\u002Fcompanies\u002Fsansan","Interview with a Sansan Engineering Unit leader and two engineers from SIer backgrounds on why their experience transfers well to product development at Sansan.","2026-04-26T00:00:00Z","https:\u002F\u002Fimages.yamiyomi.com\u002Fsansan-interview-110.png",[14,19,23,27,31,35,39,43,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128,132,136,140,144,148,152,156,160,164,168,172,176,180,184,188,192,196,200,204,208,212,216,220,224],{"word":15,"reading":16,"meaning":17,"level":18},"多種多様","たしゅたよう","wide variety, 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mimi","https:\u002F\u002Fjp.corp-sansan.com\u002Fmimi\u002F2024\u002F10\u002Finterview-110","\n::para\n[営業]{えいぎょう:sales:N2}DXサービス「Sansan」の[開発]{かいはつ:development:N4}[部門]{ぶもん:department:N2}では、[多種多様]{たしゅたよう:wide variety:N3}なキャリアやバックグラウンドのメンバーが[活躍]{かつやく:active, thriving:N1}しています。そうしたなかで、SIer[出身者]{しゅっしんしゃ:person from a background:N4}が[活躍]{かつやく:thriving:N1}していることもSansan Engineering Unitの[特徴]{とくちょう:distinctive feature:N1}です。[今回]{こんかい:this time:N3}は[部長]{ぶちょう:department head:N3}の[笹川]{ささかわ:Sasakawa (surname):N1}[裕人]{ひろと:Hiroto (given name):N1}とSIerで[働いた]{はたらいた:worked:N3}[経験]{けいけん:experience:N3}を[持つ]{もつ:to have:N4}Product Enhancementグループの[藤田]{ふじた:Fujita (surname):N1}[正訓]{まさのり:Masanori (given name):N2}、[早川]{はやかわ:Hayakawa (surname):N4}[弘通]{ひろみち:Hiromichi (given name):N1}に[話]{はなし:talk, story:N5}を[聞きました]{ききました:asked, listened to:N5}。\n\n#en\nAt the development division of the sales DX service \"Sansan,\" members with a wide variety of careers and backgrounds are thriving. Among them, a distinctive feature of the Sansan Engineering Unit is that people from SIer backgrounds are playing an active role. This time we spoke with department head Hiroto Sasakawa, along with Masanori Fujita and Hiromichi Hayakawa from the Product Enhancement group, both of whom have SIer experience.\n::\n\n::heading\nスピード[感]{かん:sense, feel:N3}のある[環境]{かんきょう:environment:N1}で、[世]{よ:world:N4}の[中]{なか:within:N5}の[役]{やく:use, benefit:N3}に[立つ]{たつ:stand, be useful:N4}プロダクトを[作る]{つくる:make:N4}\n\n#en\nBuilding products that serve the world, in a fast-paced environment\n::\n\n::callout\n[藤田]{ふじた:Fujita (surname):N1}さんと[早川]{はやかわ:Hayakawa (surname):N4}さんの[過去]{かこ:past:N3}のキャリアやSansanに[入社]{にゅうしゃ:joining a company:N4}した[経緯]{けいい:background, circumstances:N1}について[教えて]{おしえて:tell, teach:N4}ください。\n\n#en\nPlease tell us about Fujita and Hayakawa’s past careers and how they came to join Sansan.\n::\n\n::para\n[早川]{はやかわ:Hayakawa (surname):N4}：[私]{わたし:I, me:N4}はWeb[系]{けい:type, genre:N1}の[開発]{かいはつ:development:N4}[会社]{がいしゃ:company:N4}で[働いた]{はたらいた:worked:N3}[後]{あと:after:N5}、[前職]{ぜんしょく:previous job:N3}では[医療]{いりょう:medical:N2}[系]{けい:field:N1}のSIerに[勤めていました]{つとめていました:was employed:N3}。[医療]{いりょう:medical care:N2}は[社会]{しゃかい:society:N4}にとって[必要]{ひつよう:necessary:N3}[不可欠]{ふかけつ:indispensable:N3}なものであり、[自分]{じぶん:own, self:N4}の[子ども]{こども:child:N5}に[自身]{じしん:oneself:N4}の[仕事]{しごと:work, job:N4}について[誇り]{ほこり:pride:N1}を[持って]{もって:holding:N4}[伝えられる]{つたえられる:be able to convey:N3}ことも[魅力]{みりょく:appeal, charm:N1}でした。\n\n#en\nHayakawa: I worked at a web-focused development company, and in my previous job I was employed at a medical-sector SIer. Healthcare is something indispensable to society, and part of the appeal was being able to tell my own children with pride about what I do for work.\n::\n\n::para\n[前職]{ぜんしょく:previous job:N3}には10[年]{ねん:years:N5}ほどいたのですが、[最新]{さいしん:latest:N3}[技術]{ぎじゅつ:technology:N2}を[扱える]{あつかえる:able to handle:N1}[機会]{きかい:opportunity:N3}がなかったことに[加え]{くわえ:in addition to:N3}、マネジメント[業務]{ぎょうむ:duties, work:N3}が8[割]{わり:tenths, 80%:N3}を[占めていた]{しめていた:occupied:N2}ため、エンジニアリングの[新しい]{あたらしい:new:N4}[知識]{ちしき:knowledge:N3}が[習得]{しゅうとく:mastering, learning:N3}できていない[感覚]{かんかく:feeling, sense:N3}がありました。そこで、エンジニアとしての[成長]{せいちょう:growth:N3}を[目指して]{めざして:aiming for:N3}[転職]{てんしょく:change of job:N3}を[決めました]{きめました:decided:N3}。\n\n#en\nI was at my previous job for about ten years, but on top of having no chance to work with the latest technology, management tasks took up about 80% of my time, and I felt I was not picking up new engineering knowledge. So, aiming to grow as an engineer, I decided to change jobs.\n::\n\n::para\n[藤田]{ふじた:Fujita (surname):N1}：[私]{わたし:I, me:N4}は[過去]{かこ:past:N3}に[友人]{ゆうじん:friend:N5}と[小さな]{ちいさな:small:N5}IT[企業]{きぎょう:company:N1}を[創業]{そうぎょう:founded:N1}し、[始め]{はじめ:at first:N4}はSaaSの[立ち上げ]{たちあげ:launching:N4}を[目指していました]{めざしていました:was aiming for:N3}が、サービスが[頓挫]{とんざ:setback, failure:N1}してSIerに[事業]{じぎょう:business:N4}[転換]{てんかん:conversion, pivot:N2}しました。しかし、[特定]{とくてい:specific:N3}のサービスに[深く]{ふかく:deeply:N3}[携わりたい]{たずさわりたい:want to be involved:N1}という[気持ち]{きもち:feeling:N4}が[強かった]{つよかった:was strong:N4}ので、[長期間]{ちょうきかん:long period:N3}サービス[提供]{ていきょう:provision:N1}をしているSaaS[企業]{きぎょう:company:N1}に[転職]{てんしょく:changed jobs:N3}しました。より[専門性]{せんもんせい:specialisation, expertise:N2}の[高い]{たかい:high:N5}[仕事]{しごと:work:N4}がしたいと[思い]{おもい:thought:N4}、Sansanに[転職]{てんしょく:change jobs:N3}することを[決めました]{きめました:decided:N3}。\n\n#en\nFujita: I once co-founded a small IT company with a friend. At first we aimed to launch a SaaS, but the service stalled and we pivoted the business into an SIer, taking on system-development contracts. But I really wanted to be deeply involved with a specific service, so I moved to a SaaS company that had been running its product for a long time. Wanting work of even greater specialisation, I decided to join Sansan.\n::\n\n::heading\n[前職]{ぜんしょく:previous job:N3}での[経験]{けいけん:experience:N3}を[活かし]{いかし:leverage:N3}つつ、Sansanで[新た]{あらた:new:N4}な[挑戦]{ちょうせん:challenge:N1}ができる\n\n#en\nLeveraging prior experience while taking on new challenges at Sansan\n::\n\n::para\n[早川]{はやかわ:Hayakawa (surname):N4}：[営業]{えいぎょう:sales:N2}DXサービス「Sansan」のWebアプリやAPIの[開発]{かいはつ:development:N4}に[携わって]{たずさわって:involved:N1}います。[前職]{ぜんしょく:previous job:N3}のSIerでの[経験]{けいけん:experience:N3}も、Sansanでは[大いに]{おおいに:greatly:N5}[活かせて]{いかせて:able to leverage:N3}います。[例えば]{たとえば:for example:N3}[病院]{びょういん:hospital:N4}で[使われる]{つかわれる:used:N4}システムでは、さまざまな[測定]{そくてい:measurement:N2}[機器]{きき:equipment:N1}と[通信]{つうしん:communication:N3}で[連携]{れんけい:coordination, integration:N1}をしています。それが「Sansan」で[使われている]{つかわれている:used:N4}メッセージングサーバーと[類似]{るいじ:similar, analogous:N3}した[設計]{せっけい:design:N2}でした。\n\n#en\nHayakawa: I work on the web apps and APIs of the sales DX service \"Sansan.\" My SIer experience has also been highly valuable at Sansan. For example, systems used in hospitals integrate with all kinds of measurement equipment over networks, and the design was quite similar to the messaging server used in \"Sansan.\"\n::\n\n::para\n[藤田]{ふじた:Fujita (surname):N1}：[私]{わたし:I, me:N4}も[早川]{はやかわ:Hayakawa (surname):N4}さんと[同じ]{おなじ:same:N4}チームに[所属]{しょぞく:belonging to:N1}しており、WebアプリやAPIの[開発]{かいはつ:development:N4}に[携わって]{たずさわって:involved:N1}います。SaaS[企業]{きぎょう:company:N1}で[働いた]{はたらいた:worked:N3}[経験]{けいけん:experience:N3}があることで、ユーザーの[真]{しん:true:N4}のニーズを[想像]{そうぞう:imagine:N2}できるようになりました。また、SIerで[働いて]{はたらいて:worked:N3}いたことで[設計書]{せっけいしょ:design document:N2}を[書く]{かく:write:N5}ことが[比較的]{ひかくてき:relatively:N1}[得意]{とくい:good at:N3}です。Sansanでは[直近]{ちょっきん:most recent:N3}の[数年]{すうねん:several years:N3}ほど、ドキュメントの[作成]{さくせい:creation:N3}・[整備]{せいび:maintenance:N1}に[特に]{とくに:especially:N4}[力]{ちから:effort:N4}を[入れている]{いれている:putting in:N5}ため、このスキルが[役立って]{やくだって:being useful:N3}います。\n\n#en\nFujita: I belong to the same team as Hayakawa, working on web apps and APIs. Having worked at a SaaS company, I became able to imagine the user’s real needs. And because I worked at an SIer, I am relatively good at writing design documents. At Sansan, over the past few years there has been a strong push on creating and maintaining documentation, so that skill is very useful.\n::\n\n::heading\n[規模]{きぼ:scale:N1}が[大きくて]{おおきくて:large:N5}[複雑]{ふくざつ:complex:N2}なシステムだからこそ、SIer[出身者]{しゅっしんしゃ:person from a background:N4}のスキルは[貴重]{きちょう:valuable:N1}\n\n#en\nPrecisely because the system is so large and complex, SIer-background skills are valuable\n::\n\n::para\n[笹川]{ささかわ:Sasakawa (surname):N1}：[私]{わたし:I, me:N4}たちの[提供]{ていきょう:provide:N1}する「Sansan」は[創業]{そうぎょう:founding:N1}[時]{じ:time:N5}から[存在]{そんざい:exist:N3}するため、かなり[規模]{きぼ:scale:N1}が[大きくて]{おおきくて:large:N5}[複雑]{ふくざつ:complex:N2}な[機能]{きのう:feature:N3}を[持った]{もった:having:N4}サービスになっています。こうしたシステムに[対して]{たいして:toward:N3}、[破綻]{はたん:breakdown, failure:N1}なく[機能]{きのう:feature:N3}の[追加]{ついか:addition:N3}・[修正]{しゅうせい:modification:N1}を[行う]{おこなう:to carry out:N5}には[高度]{こうど:advanced, high-level:N4}なスキルが[求められます]{もとめられます:are required:N3}。SIerの[場合]{ばあい:case:N3}、[大規模]{だいきぼ:large-scale:N1}プロジェクトに[携わる]{たずさわる:be involved in:N1}ケースや[歴史]{れきし:history:N2}の[長い]{ながい:long:N5}サービスを[改修]{かいしゅう:refurbish, overhaul:N1}するケースも[多い]{おおい:many:N4}ので、「Sansan」[開発]{かいはつ:development:N4}の[適性]{てきせい:aptitude, suitability:N3}があるのだと[思います]{おもいます:think:N4}。\n\n#en\nSasakawa: Because \"Sansan\" has existed since our founding, it has grown into a service with very large-scale and complex features. Adding or modifying features on such a system without breaking anything demands advanced skills. SIer engineers often work on large-scale projects or refurbish long-running services, so I think they have an aptitude for \"Sansan\" development.\n::\n\n::para\n[笹川]{ささかわ:Sasakawa (surname):N1}：[良い]{よい:good:N3}サービスを[作る]{つくる:to make:N4}[上]{うえ:for the purpose of:N5}では[組織]{そしき:organisation:N1}の[中]{なか:inside:N5}にさまざまなスキルや[経験]{けいけん:experience:N3}を[持つ]{もつ:have:N4}メンバーがいる[方]{ほう:way, side:N4}が[望ましい]{のぞましい:desirable:N3}ので、[多様性]{たようせい:diversity:N3}が[開発]{かいはつ:development:N4}においてプラスになっています。だからこそ、なぜその[方針]{ほうしん:policy, direction:N2}を[選んだ]{えらんだ:chose:N3}のかを[論理立てて]{ろんりだてて:logically:N3}[説明]{せつめい:explain:N3}することや、[自分]{じぶん:oneself:N4}とは[異なる]{ことなる:different:N1}[考え方]{かんがえかた:way of thinking:N4}・[立場]{たちば:position, standpoint:N4}・[業務]{ぎょうむ:duties:N3}[内容]{ないよう:content:N3}の[相手]{あいて:counterpart, other person:N3}に[対して]{たいして:toward:N3}わかりやすく[伝える]{つたえる:convey:N3}ことが[求められます]{もとめられます:are required:N3}。\n\n#en\nSasakawa: In building a good service, it is desirable for the organisation to contain members with a variety of skills and experiences, so diversity becomes a real plus for development. That is precisely why we are asked to explain logically why we chose a given direction, and to convey things clearly to counterparts whose thinking, position, and work differ from our own.\n::\n"]