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ここ数年間のタウンワークiOSアプリのエンジニアのチャレンジ
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Recruit Technologies
October 01, 2020
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ここ数年間のタウンワークiOSアプリのエンジニアのチャレンジ
2020/9/21_iOSDC Japan 2020での、石井&元の講演資料になります
Recruit Technologies
October 01, 2020
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Transcript
ੴҪɹ५ ݩɹږप ؒ͜͜ͷ λϯϫʔΫJ04ΞϓϦͷΤϯδχΞͷνϟϨϯδ ʙݱͰͷ੍ͱͷઓ͍ʙ
հ ݩɹږप ΞϓϦ։ൃΧϨίϨ ࠷ۙ4XJGU6*ͱ+FUQBDL$PNQPTF͕େ͖ ͱΓ͋͑ͣʹͳΒͳ͍Α͏ʹؤுͬͯ·͢ ੴҪɹ५ ৽ଔೖࣾɺJ04ྺ ࠷ۙϨΨγʔγεςϜͷצॴ͕͔ͭΊ͖ͯͨʢͣʣ ೖࣾ࣌ͱൺͯମॏ͕LH૿͑ͨ ൃදऀ
Υϯώϣϯδϡ ΠγΠɹɹδϡϯ
࣍ ΤϯδχΞ͔ΒݟͨλϯϫʔΫΞϓϦͷಛ େنαʔϏεΏ͑ͷ։ൃݱͱͯ͠ͷ੍ νϟϨϯδʔ σόοάϞʔυ &&ςετπʔϧϨϯτήϯ Ϋϥογϡͷݮ
4XJGUԽ ίϯύΠϧͷվળ
ΤϯδχΞ͔Βݟͨ λϯϫʔΫΞϓϦͷಛ
ಛᶃɹ େنαʔϏεʢλϯϫʔΫʣ ͷΫϥΠΞϯτʢJ04ΞϓϦʣ
ͨ͏ΜΘʔ͘ʁ ʮϦϘϯϞσϧʯ ٻ ৬ ऀ ا ۀ ٻ৬ऀͱاۀͱΛϚονϯά͢ΔɺେنͳαʔϏε
େنαʔϏε ˞Լమͷ࿏ઢਤͰ͋Γ·ͤΜ https://speakerdeck.com/rtechkouhou/taunwaku90mo-yuan-gao-falsejie-zai-wozhi-eruregasibatutipahuomansutiyuningu-number-devsumi-number-devisumid
J04ΞϓϦͷείʔϓ https://speakerdeck.com/rtechkouhou/taunwaku90mo-yuan-gao-falsejie-zai-wozhi-eruregasibatutipahuomansutiyuningu-number-devsumi-number-devisumid ͕͜͜ΫϥΠΞϯτͷ είʔϓ ͜ͷJ04ͷͰ͢
ಛᶄɹ ΞϓϦγϯϓϧʁ
ΞϓϦͷ༷γϯϓϧ ݕࡧ Ұཡ ৄࡉ Ԡื
Ͱͳ͍ ը໘ɿɹɹɹɹɹɹɹɹը໘ શίʔυߦɿɹɹɹίʔυͷΈສߦ $PSF%BUBςʔϒϧɿɹɹɹݸ खಈςετ߲ɿɹ ߲ 6OJU5FTUʢ9$5FTUʣɿɹ έʔε
ಛᶅɹ ݹ͔͘Βͷ׆ൃͳ։ൃ
Γଓ͚͍ͯΔ ॳΊͯϦϦʔε͔ͯ͠Β ճܧଓతʹʢिճසʣҊ݅ΛΓࠐΜͰϦϦʔε ˞݄ج४
େنαʔϏεΏ͑ͷ ։ൃݱͱͯ͠ͷ੍
લఏͱͳΔ੍͕ೋͭ ̍ɽਐߦதͷҊ݅։ൃʹ2%ӨڹΛ༩͑ͨ͘ͳ͍ ɹɹɾෳνʔϜͰฒߦ։ൃ ɹɹɾ֤νʔϜ͕ͦΕͧΕͷ ɹɹɹϏδωε,1*ʹᬏਐ ̎ɽ։ൃޮԽେࣄ͕ͩɺ֎෦࣭͕࠷ॏཁ ɹɹɾٻ৬ऀاۀؒͷϚονϯά ɹɹɹͷͨΊͷ༷ΛकΔ ɹɹɾJ04ͱͯ͠ͷಈ࡞ج४ Ҋ͕݅
ৗ࣌ฒߦ ࢀߟɿେنϨΨγʔڥʹཱ͔ͪ͏༗ػతͳ։ൃϑΥʔϝʔγϣϯ
ϨΨγʔͳߏ͕ҡ࣋͞Εͯདྷͨ ਐߦதͷҊ݅։ൃͷ2%ʹӨڹϦεΫ͕͋ΔͨΊɺ ϦϑΝΫλϦϯάͰ͖ͳ͍ ݁Ռɺमਖ਼࣌ͷӨڹൣғ͕໌֬ʹΘ͔Βͳ͍ ɹɹɹ6OJU5FTUͰ୲อͮ͠Β͍ ܰ͘ ߦΛ͑Δ7$ͨͪ ݸΛ͑Δ$PSF%BUB&OUJUJFT ຆͲ͕.7ʢ1ʣ 0CKD4XJGU0CKDͱͦͷٯύλʔϯͷґଘؔ
·ͩಈ͘%FQSFDBUFE"1*ͳΒී௨ʹݱ 0CK$3VOUJNFͰحతʹಈ͍͍ͯΔܕͷϛεϚονॲཧ ΧΦεͷ··Ҋ݅։ൃଓ͘
݁Ռతʹςετ͕λΠϔϯ ཧతςετϐϥϛου ݱ࣮͜ͷΑ͏ͳΠϝʔδ *5 *5 && 65 *5 && ໌֬ͳςετείʔϓ
࠷ݶͷखಈςετ ΄ͱΜͲͷػೳΛखಈςετͰ୲อ͢Δ͔͠ͳ͍ 65 https://www.youtube.com/watch?v=VJi2vmaQe6w ᐆດͳςετείʔϓ *5ͱ&&ͷखಈςετ
࠷ѱͷεύΠϥϧ ςετʹ͕ୣΘΕΔ ։ൃ͕ѹഭ͞ΕΔ ϦϑΝΫλϦϯάઌૹΓ ϨΨγʔͷ··Ͱઃܭɾ࣮
੍ΛݟۃΊͯɺ νϟϨϯδͩʂ
͍͑ͨ͜ͱ վળͰେࣄͳ͜ͱ Ұൠతʹྑ͍ͱ͞ΕΔํ๏ΛҋӢʹऔΓೖΕΔ ͕ࣗͨͪ໘͍ͯ͠Δ੍Λਖ਼͘͠ཧղͯ͠ ࣗͨͪݻ༗ͷ՝ʹରͯ͠ޮՌతͳղܾࡦΛͱΔ ݁Ռɺখ͞ͳྗɾظؒͰ࠷େͷ݁Ռ͕ಘΒΕΔ
͜͜ͷ νϟϨϯδͷ͓ औΓΈͷ۩ମతͳ༰͕ؾʹͳΔํɺ Ξϯέʔτʹ࣭͝Λ͓ئ͍͠·͢
ᶃσόοάϞʔυͷ։ൃ
σόοάϞʔυͱ ήʔϜͰྫ͑Δͱࣗ༝ʹ-WΛʹͨ͠Γɺ Ӆ͞ΕͨΞΠςϜΛॴ࣋Ͱ͖ΔΑ͏ʹͨ͠Γ͢ΔӅ͞Εͨػೳͷ͜ͱ
ߟ͑ํ ςετ͕ͲΜͲΜΛѹഭ͍ͯ͠Δ ˣ ΄ͱΜͲखಈςετ ˣ ͱ͍͑ɺߏతʹࣗಈςετՄೳͳੈքߦ͘ʹ͍ಓͷΓ ˣ ˣ ˣ खಈςετޮԽͳΒɺɾظͰޮՌΛಘΒΕΔʂʂ
σϞ ΦϑγϣΞ։ൃ͚ͷࣗಈ༁
ଞʹͨ͘͞ΜͷػೳͰ खಈςετޮԽ ɾΞϓϦͷ͚ͩΛِʢຊମͦͷ··ʣ ɾखಈςετͷͨΊͷࣄલ݅ΛࣗಈͰੜ ɾը໘্Ͱ֬ೝͰ͖ͳ͍෦σʔλΛΞϓϦͷ7JFXʹදࣔ ِ σʔλੜ ϩάίϯιʔϧ "#ςετૢ࡞
खಈςετͷݮ *5 *5 && 65 σόοάϞʔυͰ ׂఔͷݮ खಈςετྖҬ ςετίʔυྖҬ खಈςετྖҬ
σόοάϞʔυେώοτʂ ࣮͕ೝΊΒΕɺԣల։͞Εͨ ɾ·ͣɺλϯϫʔΫ"OESPJE ɾ࣍ʹɺϦΫϧʔτδϣϒζͷ֤ϓϩμΫτ ςετఔͰσόοάϞʔυඞਢԽ ෦ίϯτϦϏϡʔλʔ૿Ճ ɾҊ݅։ൃ࣌ʹɺඞཁͳΒσόοάϞʔυΛ࣮ܰ͘͢Δ׳श λϯϫʔΫͷσόοάϞʔυͲΜͲΜਐԽதʂʂ
ᶄ&&ςετπʔϧͷ։ൃ dϨϯτήϯd
ͳΜͱ͔*5ͷίετݮΒ͚ͨ͠Ͳɾɾɾ *5 *5 && &&ςετ෦ߏΛม͑ͣͱࣗಈԽ͕Մೳͳͣ 65 ϨΨγʔߏͰΧόϨοδݶք ͦΕͰ͢Ͱʹ࣌έʔε σόοάϞʔυͰ ׂఔͷݮΒͨ͠ײ֮
खಈςετྖҬ ςετίʔυྖҬ खಈςετྖҬ ͜͜ΛࣗಈԽ͠Α͏ʂ
͔͠͠طଘͷ&&ςετπʔϧ՝͕͋ͬͨ ɾεΫϦϓτૢ࡞ͷޭՄ൱ͱɺ ɹεΫγϣಈըܗࣜͷΞτϓοτͰݕূΛߦ͏ͨΊɺ ɹݟͨҎ্ͷݕূෆՄೳ ɹɹྫʣ7JFXͷ֊6*ʹग़ͳ͍ଐੑͳͲ ɾ6*෦͝ͱͷݕূͷͨΊʹૢ࡞εΫϦϓτΛՃ͢Δ͔ɺ ɹBTTFSUจΛॻ͔ͳ͍ͱߦ͚ͳ͍ ͳ͚Ε࡞Εྑ͍ ৽͍͠Έͷ&&πʔϧʹνϟϨϯδʂ طଘ&&ςετࣗಈԽπʔϧͷ՝
ࣾ&&πʔϧʮϨϯτήϯʯΛ։ൃʂ ɾJ04ͷը໘7JFX$POUSPMMFS୯Ґ ɾ7JFX$POUSPMMFSͷ7JFX֊Խ͞Ε͍ͯΔ ɾը໘͕දࣔʢඳըʣ͞ΕͨΒ֊ʹԊͬͯݕূͰ͖Δͣ ։ൃͷ1PJOU 7JFX֊Λు͖ग़͠ɺࠩΛൺֱ͢Δ
ϨϯτήϯͷγεςϜߏ Ϩϯτήϯ4%, Ϩϯτήϯ"1* Ϩϯτήϯ8FC5PPM 7JFX֊ͷ +40/ ࣗಈૢ࡞
σϞ "QQJVNͰࣗಈૢ࡞
ཪͰ7JFX֊Λ%VNQ 7JFX֊Λͯ͢%VNQ
%VNQσʔλ+40/ʹม
+40/ʹมͨ͠σʔλΛαʔόʹੵ
+40/σʔλͳͷͰ ؆୯ʹࠩൺֱ͕Ͱ͖Δ جຊతʹ%VNQͨ͠HJUIBTI୯ҐͰ ಉ͡ૢ࡞εΫϦϓτͰൺֱΛߦ͏
ੵͨ͠ը໘σʔλΛ8FCͰ࠶ݱͰ͖Δ $BOWBTʹJ04ը໘σʔλΛඳը͢ΔϞδϡʔϧ։ൃ ը૾σʔλ#BTFԽͯ͋͠ΔͷͰ8FCͰඳըՄೳ
σϞ 8FC5PPMͰࠩͷ֬ೝ
Ϩϯτήϯ׆༻࣮ ఆظ࣮ࢪͷςετ ɾϦϦʔεલͷॏཁػೳͷਖ਼ৗܥςετ ϦϑΝΫλϦϯάͷςετ ɾ4XJGUԽͷςετ ɾґଘϥΠϒϥϦมߋޙͷςετ ϦϑΝΫλϦϯάܥͷςετͰ͜Ε͔Β׆༻໘ΛΊͯߦ͘༧ఆ ࠓ··ͰෆՄೳͩͬͨΞϓϦશମʹ Өڹ͢ΔΑ͏ͳվमɺ Մೳʹͳͬͨʂʂʂ
ᶅΫϥογϡͷݮ
࣭Λߟ͑Δͱ͖ʹɺ ΫϥογϡϨʔτॏཁ͕ͩʜ
Ͱ Ϋϥογϡ͕ഒҎ্ʹ
Ϋϥογϡ૿ՃͷݪҼʁ λϯϫʔΫΞϓϦͷ༷ଆ໘ λϯϫʔΫ࣭ج४ʹఆٛΞϦ ͜Ε͕ΞϓϦͷΫϥογϡ λϯϫʔΫ࣭ج४ʹఆٛφγ Ϋϥογϡʹؔͯ͠༏ઌ͕͔ͬͨ͜ͱ ੲ͔ΒλϯϫʔΫΞϓϦͰ࣭ج४͕ʮػೳʯͷΈͩͬͨ ͦͯ͠ΤϯδχΞओಋͰ ୲อ͢Δ͖ྖҬ "QQ$PSF2VBMJUZ(PPHMF
Ҿ༻IUUQTEFWFMPQFSBOESPJEDPNEPDTRVBMJUZHVJEFMJOFTDPSFBQQRVBMJUZ
্࣭ͷνϟϨϯδ ɾΫϥογϡϞχλϦϯάΛʑߦ͏ͨΊ$SBTIMZUJDTಋೖ ʢಋೖ͕͓ͦ͗ͨ͢ཧ༝ผͷࣾπʔϧʹґଘ͍ͯͨͨ͠Ίʣ ɾʑΫϥογϡʔΛѲ͢Δ ɾΫϥογϡʔ͝ͱͷൃੜ֬ɺ04ɺؔ࿈͢ΔॲཧΛੳ ɾۓٸॱΛܾΊͯJTTVFԽ͠ॗʑରԠ ɾରԠͨ͠όά࣍ͷϦϦʔεʹࠞͥࠐΉ ৗతʹΫϥογϡΛϞχλϦϯάɾվળ͢ΔΑ͏ ։ൃϓϩηεʹΈࠐΜͩ
େࣄͳͷখ͍͞ΞΫγϣϯΛॗʑΔ͜ͱ 1%$"αΠΫϧతͳ͜ͱͰ͢
ΫϥογϡϑϦʔϢʔβʔ͕ Ҏ্ʹճ෮ ͦͷޙɺλϯϫʔΫJ04$'6ͷΛҡ͍࣋ͯ͠·͢
ᶆ4XJGUԽ
0CKFDUJWF$ΑΓ4XJGU
ૣ͍λΠϛϯάͰ4XJGUΛಋೖ͚ͨ͠Ͳ λϯϫʔΫͰ݄͔Βঃʑʹ4XJGUΛಋೖ ํɿɹɾ৽نΫϥεΛ4XJGUͰ࣮ ɹɹɹɹɾہॴతͳ4XJGUԽճ࣮ࢪ ޙ ੍͕͋ΔͷͰ͔Β΄΅ಉ͡
ڞଘظ͕ؒ͘ͳͬͯ৭ʑ͕ൃੜ͍ͯͨ͠
0CK$ڞଘΛఆͨ͠Ϋϥεઃܭɾ࣮ίετ $MBTTͱ4USVDUઃܭ࣌ʹ0CK$ଆ͔Βͷར༻Λલఏʹ͢Δඞཁ͕͋Δ ઃܭɾ࣮ఔͷ࣌ؒͷ͏͕ͪ࣌ؒڞଘؔ࿈λεΫ
ΫϥογϡͷݪҼͷ΄ͱΜͲ 0CK$4XJGUڞଘՕॴ ίϯύΠϥʹΑΔOJMνΣοΫʹґଘͰ͖ͳ͍ͨΊϥϯλΠϜΤϥʔΛ ఆ࣮͕ͨ͠ඞཁʢOVMMBCMFطଘӨڹ͋ΓͷͨΊ֎ʣ ࣾݶ ࣌ͷ5PQΫϥογϡ͕ͯ͢ڞଘՕॴ
੍ΛݟۃΊͯɺ νϟϨϯδͩʂ ˞ಉ࣌ਐߦதෳҊ݅։ൃʹӨڹ͍͚ͯ͠ͳ͍
λϯϫʔΫྲྀ 4XJGUԽͷਐΊํ
Γͷ0CK$pMFΛͯ͢ϦετԽ pMFɺສߦʢશମͷׂ̑ʣ ΧςΰϦԽ ߦͰنײΛѲ ·ͣશରΛϦετԽ
։ൃঢ়گΛͯ͢Ѳͯ͠ύζϧܭը Ҋ݅։ൃͱ$POqJDUى͜͞ͳ͍ظؒɺ ߦ͔ΒͷنײͰ4XJGUԽରpMFΛબఆɻ ΄ͱΜͲ੍͕ݶ࣌ؒ 4XJGUԽͱฒߦͰෳҊ͕͍݅ͬͯΔ੍ʹϑΥʔΧε
՝ΛΦϑγϣΞ։ൃͰղܾ ͍σϦόϦʔ੍ͱΫΦϦςΟʔ୲อͷ͠͞Λ ɹຊΤϯδχΞʢ༗ࣝऀʣͱ ɹΦϑγϣΞ։ൃʢεέʔϥϒϧʣɹͰղܾ 0CKFDUJWF$4XJGUͷ࡞ۀ ର'JMFબఆ͓Αͼ ӨڹൣғѲ ίʔυϨϏϡʔ 65͓Αͼ*5 &&
ຊΤϯδχΞʢ༗ࣝऀʣ ΦϑγϣΞ։ൃʢεέʔϥϒϧʣ ࢀߟɿେنϨΨγʔڥʹཱ͔ͪ͏༗ػతͳ։ൃϑΥʔϝʔγϣϯ
΄΅͕̍ϚʔδαΠΫϧ બఆ࣌ʹӨڹൣғ͔ͬ͠ΓνΣοΫ͠ ͔ͯΒΦϑγϣΞ։ൃճ͢ 4XJGUԽ͔ΒίʔυϨϏϡʔ ΄΅Ͱྃ બఆ͔ͯ͠ΒཧΧϯόϯͰ
ຖॗʑ͍ͬͯ͘ ظ݄ؒd݄ʢʣ ਐͷ֬ೝ HJUIVCMJOHVJTUͰ͙͢ग़ͤΔ
ܭը௨ΓʹऴΘ͍ͬͯͨ ΓͷߏpMF pMFɺສߦ͕ظؒͰྃ ݄ྃ
ᶇϏϧυ࣌ؒͷվળ ɹ࠷ۙͬͯ·͢ʂ
Ϗϧυ͕࣌ؒ՝ େ͖͍ϓϩδΣΫτΏ͑ͷϏϧυ࣌ؒਂࠁͳ εΫϦϓτΛΈࠐΜͰϏϧυλΠϜΛܭଌ Ϝμʂʂ ։ൃऀਓ͋ͨΓʜ ɹϏϧυճճ݄ ɹϏϧυਓ݄ Ϗϧυ࣌ؒඵճ
ҰൠతͳղܾࡦͰɹޮՌແ͠ ɹɹɹɹɹɹɹɹɹɹ͙͢ޮՌΛಘΒΕͳ͍ ޮՌͳ͠ʜܕਪ࣌ؒͷվળɺϏϧυઃఆͷมߋͳͲ ͙͢ޮՌΛಘΒΕͳ͍ʜ'SBNFXPSLͷΓग़͠ͳͲɻӨڹ͕େ͖͕͔͔࣌ؒ͘ΔͨΊ ͦͦҰൠతͳঢ়ଶͰͳ͍ͨΊ λϯϫʔΫಠಛͳ͕ผͷͱ͜ΖͰ͋ͬͨ
ࠩϏϧυ͕શવޮ͍͍ͯͳ͍ʜ 3TXJGU͕΄΅શͯͷ7JFX7JFX$POUSPMMFSΛ ࢀর͍ͯͨ͜͠ͱ͕ݪҼͰɺ ͱͱෳࡶͳґଘ͕ؔ͞ΒʹෳࡶʹͳΓɺ ࠩϏϧυ͕΄ͱΜͲػೳ͠ͳ͔ͬͨ 3TXJGUΛআ٫ͯ͠ɺ ࠩϏϧυ͕ػೳ͢ΔΑ͏ʹͳͬͨɻ ݁ՌɺϏϧυ࣌ؒΛׂఔݮΒͨ͠
։ൃڥͷվળ ίΞҎ্ͷϚγϯʹ౷Ұ͠ɺ Ϗϧυ࣌ؒΛʙׂݮΒͨ͠ ͜ͷϓϩμΫτʹదͨ͠ϚγϯεϖοΫͷج४͕ແ͔ͬͨͨΊɺ εϖοΫͳϚγϯ͕ଟ͘ΘΕ͍ͯͨɻ ֤εϖοΫͷϚγϯͰϏϧυ࣌ؒΛܭଌɻඞਢϚγϯεϖοΫΛ͖ͭͱΊͨ
Ҿ͖ଓ͖৭ʑ͍ͬͯ·͢ʂ
Ҋࣄ߲
औΓΈͷ۩ମతͳ༰͕ؾʹͳΔํɺ ͪ͜Βʹ࣭͝Λ͓ئ͍͠·͢
None