What are the requirements for CTO

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CTOʹٻΊΒΕΔ΋ͷ IVS CTO Night and Day Hatena Co., Ltd. @stanaka ! 2014/12/03

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Shinji Tanaka / ాத৻࢘ @stanaka / id:stanaka גࣜձࣾ͸ͯͳ ࣥߦ໾һCTO ࠷ۙɺ౦ژʹӽ͖ͯ͠·ͨ͠ 2

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޷͖ͳٕज़ • ݴޠɿ Go • ΤσΟλɿ Emacs • AWSɿ S3 • ࣮ߦ؀ڥɿ Docker • σʔλετΞɿ MySQL

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[PR] Mackerel https://mackerel.io/

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CTOͱ͸? • Chief Technology Ofﬁcer • VP Engineering $50ʹ  ࣅͨϙδγϣϯ

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CTOͷ໾ׂ • Ұ൪ίʔυΛॻ͘ਓ • γεςϜΞʔΩςΫτ • Ϛωδϝϯτ͢Δਓ 71 &OHJOFFSJOH

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from CTO of Stripe IUUQCMPHHSFHCSPDLNBODPNpHVSJOHPVUUIFDUPSPMFBUTUSJQF

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CTOͷఆٛ • ͔ͬ͠Γͱͨ͠ఆٛ͸ࠔ೉ • ձࣾͷن໛ɾϑΣʔζ΁ͷґଘ • ࣄۀ಺༰ʹ΋ґΔ

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ந৅తͳ͜ͱΑΓ  ʮࣗ෼ͷܦݧʯ͔Β

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1 ͜Ε·Ͱͷ͋Β͢͡

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in the case of @stanaka • 2000/4 NTTݚڀॴೖࣾ • 2006/4 ͸ͯͳೖࣾ • 2010/9 CTOഈ໋ • 2014/12 ΠϚίί

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2006ʙ2010 • ΞϓϦέʔγϣϯΤϯδχΞ • ΠϯϑϥΤϯδχΞ → Ϛωʔδϟ • ӡ༻ޮ཰Խ(puppetಋೖ) • Ծ૝Խ(Xen)ɾSSDಋೖ • Hatena Inc.։ઃ & ຊࣾژ౎Ҡస

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ࣄ݅฽ CTOҎલ • 2007,2008 DCϒϨʔΧʔஅ • 2007? શһୀձࣄ݅ • 2008/4 SubversionϦϙδτϦഁଛ  → git΁Ҡߦ

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2010ʙ2014 • CTOަ୅ • Πϯϑϥ͔Β࠶ͼαʔϏε։ൃ΁ • GitHub Enterpriseಋೖ • Scala, Goಋೖ • ౦ژΦϑΟεʹΤϯδχΞ࠾༻࠶։ • ϦϞʔτϫʔΫ(௅ઓத)

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ࣄ݅฽ CTOҎޙ • 2012/1 SSDͷϑΝʔϜόά౿Έ  DB࿈ଓμ΢ϯ • 2012/3 ͸ͯͳϒοΫϚʔΫϘλϯԌ্ • 2014/11 υϝΠϯWHOIS৘ใͷվ᜵

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SSDͷϑΝʔϜόά౿Έ ಉ྅ͷ ݁ࠗࣜೋ࣍ձத ʹϝϯς࣮ࢪ

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2 CTOͱͯ͠  ҙ͖ࣝͯͨ͜͠ͱ

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CTOͱͯ͠Ռ͖ͨͯͨ͜͠ͱ • ΠϯϑϥपΓΞʔΩςΫνϟ • ΞϓϦɾΠϯϑϥٕज़બఆ • ΤϯδχΞϦϯάνʔϜཆ੒ • ࠾༻ɾҭ੒

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CTOͱͯ͠ҙ͖ࣝͯͨ͜͠ͱ ʮٕज़໘ʯ  ͱ  ʮਓࡐ໘ʯ

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2.a ٕज़໘ͷ͜ͱ

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ٕज़໘ • ߈Ί • ٕज़తڝ૪༏Ґͷ  ཱ֬ • कΓ • ίετ؅ཧ • εέʔϥϏϦςΟ Մ༻ੑ֬อ • ηΩϡϦςΟ୲อ

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߈Ί: ٕज़తڝ૪༏Ґͷཱ֬ • “Technology Company”Λ  ඪᒗ͢ΔͷͰ͋Ε͹ɺ  ੋඇ໨ࢦ͍ͨ͠ߴΈ ΤϯδχΞͷ ϩϚϯ

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ͦ͏؆୯Ͱ͸ͳ͍ • ʮ࣌ػΛݟۃΊΔͷ͸ઐ໳ՈͰ΋೉ ͍͠ɻ͔͠͠উෛΛ͠ͳ͍ͱ෣୆ʹ ্͕Δ͜ͱ͢ΒͰ͖ͳ͍ɻʯ- ٕज़ͱ ࣌ػ IUUQSFTFBSDIQSFGFSSFEKQUJNJOH

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ٕज़ΛҰखஈͱଊ͑Δ • ७ਮͳٕज़తཁૉͰϏδωε༏ҐΛ ࡞Δͷ͸ۃΊͯࠔ೉  ˠ ੍໿Λٕज़తʹಥഁ/ճආͭͭ͠ɺ Ϗδωε্ͷ༏ҐΛங͘

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Ϗδωε΁ͷٕज़తߩݙ • Ϗδωε্ͷڝ૪༏ҐΛཱ֬͢Δͨ Ίʹٕज़తʹߩݙ͢Δ • εϐʔυײͷ͋Δ։ൃ • ίϞσΟςΟԽ͍ͯ͠ͳ͍ٕज़ͷ ࠾༻

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कΓ: ίετ؅ཧ • ٕज़తෛ࠴ΛฦࡁՄೳͳϨϕϧʹ IUUQNBSUJOGPXMFSDPNCMJLJ5FDIOJDBM%FCUIUNM

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ٕज़తͳ൑அ • WAFબఆ • ։ൃݴޠબఆ • ϛυϧ΢ΣΞબఆ • ࣮ߦ؀ڥબఆ • ΞʔΩςΫνϟબఆ

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։ൃݴޠબఆ • ௕Β͘Perl͕ओ࣠ • Ruby͸पลπʔϧͰར༻ • ScalaɾGoͷ࠾༻ (2013຤)

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Scala, GoͷGood ɾ No good • Good • ܕ෇͚ݴޠʹΑΔݎ࿚ͳ։ൃ • ΤϯδχΞϞνϕʔγϣϯ޲্ • ࠾༻্ͷޮՌ • No good • ৽͍͠ݴޠΛษڧ͢Δ࣌ؒ(ίετ)͕ඞཁ

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৽͍ٕ͠ज़ͷ࠾༻ • جຊ͸ϘτϜΞοϓ͕ྑ͍ • ܧଓతʹϝϯς͢Δ͜ͱ͸೦಄ʹ ٕज़తෛ࠴ʹ ͳΓ͔Ͷͳ͍ Ͱ΋एखΛ εϙΠϧ͠ͳ͍Α͏ʹ

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࣮ߦ؀ڥબఆ • HDD → SSD • 2008Ն Intel X25-MϦϦʔεલ • ΦϯϓϨϛε → Ϋϥ΢υ(AWS) • TokyoϦʔδϣϯ։ઃ࣌

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ΞʔΩςΫνϟબఆ • Microservices or Monolithic IUUQNBSUJOGPXMFSDPNBSUJDMFTNJDSPTFSWJDFTIUNM

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ٕज़બఆ͸FacebookͰ΋ؒҧ͏ HTML5 vs Native IUUQTXXXGBDFCPPLDPNOPUFTGBDFCPPLFOHJOFFSJOHVOEFSUIF IPPESFCVJMEJOHGBDFCPPLGPSJPT

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ٕज़બఆͷํ਑ • ͋Δఔ౓อकతʹ • ॏཁͳͱ͜ΖͰ͸ΞάϨογϒʹ • ൑அϛε࣌ͷఫୀ࿏͸೦಄ʹஔ͘

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कΓ: εέʔϥϏϦςΟଞ • εέʔϥϏϦςΟɾՄ༻ੑ • ηΩϡϦςΟ ॗʑͱ  खൈ͖ͤͣʹ

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2.b ਓࡐ໘ͷ͜ͱ

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ਓࡐ໘ • ΤϯδχΞͱϚωδϝϯτ

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ΤϯδχΞͱϚωδϝϯτ IUUQUFOTIPLVNZOBWJKQJUFOHJOFFSLOPXIPXOBPZB@TVTIJ

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Ϛωδϝϯτͷલʹ.. • ΤϯδχΞͷΩϟϦΞύε • ઐ໳৬(εϖγϟϦετ) • Ϛωʔδϟʔ • ݚڀ৬?

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ઐ໳৬ = ϑϧελοΫΤϯδχΞ?? • ଟ༷Խ͢ΔϨΠϠʔ • ϑϩϯτʙόοΫΤϯυʙΠϯϑϥ • εϚʔτϑΥϯ • 3DάϥϑΟοΫΤϯδϯ • ػցֶशɾσʔλղੳ

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ϋʔυ΢ΣΞΤϯδχΞ

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શͯΛ໢ཏ͢Δͷ͸ඇݱ࣮త ͘͢ͳ͘ͱ΋ ଟ͘ͷਓʹ͸

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εΩϧηοτͷϙʔτϑΥϦΦ • όοΫΤϯυ + ػցֶश • όοΫΤϯυ + εϚʔτϑΥϯ • ʮಘҙͳྖҬ + αʯΛૂ͏

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ඞཁे෼ͳεΩϧηοτ΁ͷదԠ • Ϗδωε΍֎෦؀ڥͷมԽ  ˠ ඞཁͳεΩϧηοτ΋มԽ • ֤ΤϯδχΞͷੜ͖࢒Γͱ  ઌߦ౤ࢿͷόϥϯε εϚϑΥͷ ීٴɾ"84ͷ ོ੝

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Ϛωʔδϟʔ • ϓϩμΫτ։ൃΛਪਐ͢Δ • ΤϯδχΞΛϞνϕʔτ͢Δ • ։ൃϓϩηεΛ੔͑Δ

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ΤϯδχΞͷϞνϕʔγϣϯ • ։ൃνʔϜͷੜ࢈ੑʹ௚݁ • ίϛϡχέʔγϣϯͷॏཁੑ

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ΤϯδχΞͷίϛϡχέʔγϣϯ • Ͱ͖Δ͚ͩଟ͘ͷ͜ͱΛ৘ใڞ༗ • ΤϯδχΞϦϯά΁ͷཧղ

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ʮਆ͸ࡉ෦ʹ॓Δʯ • ݱ৔͔Β཭ΕΔͱࡉ෦Λܰࢹ͕ͪ͠ • ͳΜͱͳ͘෼͔ͬͨؾʹͳΒͳ͍ • ؆୯ʹݟ͑Δ͜ͱͰ΋؆୯ʹͰ͖ Δͱ͸ݶΒͳ͍ • ܦݧ͕͋ΔΤϯδχΞͰ΋ؕΓ͕ͪ

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։ൃϓϩηεΛ੔͑Δ • εΫϥϜ • πʔϧಋೖ(GitHub, Slack) • ಇ͖ํͷଟ༷ੑ(ϦϞʔτϫʔΫ)

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εΫϥϜ

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πʔϧಋೖ

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ϦϞʔτϫʔΫ ౦ژຊళ ژ౎ຊࣾ Ѫ஌ ग़ுઌ

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ϦϞʔτϫʔΫͷӡ༻ • ίϛϡχέʔγϣϯΛΑΓॏࢹ͢Δ • ҰਓͰ͸·ΔͷΛආ͚Δ • ϊ΢ϋ΢͕ڞ༗͞Εͳ͍ͷΛආ͚Δ • ಓ۩ɾπʔϧʹͩ͜ΘΔ

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ϦϞʔτͰϛʔςΟϯά

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ϦϞʔτϫʔΫࢀߟຊ

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3 CTOʹ  ٻΊΒΕΔ΋ͷ

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CTOͱͯ͠ҙ͖ࣝͯͨ͜͠ͱ(࠶ܝ) ٕज़໘  ͱ  ਓࡐ໘

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ৼΓସ͑ͬͯΈΔͱ… • ࣦഊ͸ڪΕΔ΂͖Ͱ͸ͳ͍ • ͨͩ͠ୀ࿏͸֬อ͢Δ • ϘτϜΞοϓͰ࣮ߦ͢Δ • ࣦഊͯ͠΋ܦݧ஋͸࢒Δ