Jumpei's blog

Redefining What Work Means

English | ๆ—ฅๆœฌ่ชž

English

At the beginning of 2026, I submitted my resignation to my manager who had been instrumental in opening up my career in the United States. I was essentially saying: I'm leaving the company in a month. Sorry. What followed was rough. I fell into a deep depression, spent my days watching YouTube, sleeping, and avoiding reality. Somehow, I managed to make it through to the end.

More than a year has passed since then. Now I can say it clearly: leaving was the best decision I could have made. Of course, people tend to justify their past decisions. I may be doing the same. I cannot claim complete objectivity. Still, I want to explain why I believe that choice was right.

At the time, I had come to recognize that aesthetic sensibility and craftsmanship in building products were one of the central pillars of my life. I remain deeply grateful to the Azure AI Team for everything they taught me. But at the same time, working on one component of a service built on top of a large and highly complex platform, within layers of organizational hierarchy, made it difficult for me to bring genuine craftsmanship into the work.

I wanted to experience working in a flatter organization where I could help define the future of a product and take responsibility for moving it in that direction.

I had never taken a product from zero to PMF. I had never built one from scratch. That is why I am deeply grateful to the CEO of Lazuli for giving me the opportunity to take on the role of VP of Product. It was a chance to step into territory where I lacked direct experience. As a result, I feel I am gradually moving closer to the kind of work I truly wanted to do.

When you pursue what you want, the process itself sharpens your understanding of what you wantโ€”and what you do not.

One thing I have learned recently is that product building inside a business is, to a large extent, management itself. To deliver value, product alone is not enough. You need alignment across engineering, sales, customer success, marketing, recruiting, finance, and leadership. You are constantly connecting functions, resolving tensions, and making trade-offs between ideals and operational reality.

Problems come from every direction.

In those moments, I sometimes remember the difficult feelings I had during my time at Microsoft. There is responsibility, expectation, and an endless stream of work. It forces you to ask a more fundamental question: under what conditions can a person work in a healthy and sustainable way?

What is the right balance between authority and responsibility? What level of workload is sustainable? What does compensation solve, and what does it fail to solve? It is possible to think about these questions while employed. But in my case, they only became real after going independent. Something a senior self-employed friend once told me finally started to make sense.

Leaving was not simply a change of environment. For me, it was the beginning of redefining what work means.


ๆ—ฅๆœฌ่ชž {#japanese}

2026ๅนดใฎๅˆใ‚ใ€็งใฏใ‚ขใƒกใƒชใ‚ซใงใฎใ‚ญใƒฃใƒชใ‚ขใ‚’ๅˆ‡ใ‚Š้–‹ใใ†ใˆใงๅคงใใชๅŠ›ใซใชใฃใฆใใ‚ŒใŸใƒžใƒใƒผใ‚ธใƒฃใƒผใซ่พž่กจใ‚’ๆๅ‡บใ—ใพใ—ใŸใ€‚่ฆใ™ใ‚‹ใซใ€ใ€Œ1ใƒถๆœˆๅพŒใซไผš็คพใ‚’ๅŽปใ‚Šใพใ™ใ€‚็”ณใ—่จณใ‚ใ‚Šใพใ›ใ‚“ใ€ใจไผใˆใŸใ‚ใ‘ใงใ™ใ€‚ใใฎๅพŒใฏใคใ‚‰ใ„ๆ™‚ๆœŸใŒ็ถšใใพใ—ใŸใ€‚ๆทฑใ„ใ†ใค็Šถๆ…‹ใซ้™ฅใ‚Šใ€YouTubeใ‚’่ฆ‹ใŸใ‚Šใ€็œ ใฃใŸใ‚Šใ€็พๅฎŸใ‹ใ‚‰็›ฎใ‚’่ƒŒใ‘ใŸใ‚Šใ—ใชใŒใ‚‰ๆ—ฅใ€…ใ‚’้Žใ”ใ—ใพใ—ใŸใ€‚ใใ‚Œใงใ‚‚ใชใ‚“ใจใ‹ไน—ใ‚Š่ถŠใˆใ‚‹ใ“ใจใŒใงใใพใ—ใŸใ€‚

ใ‚ใ‚Œใ‹ใ‚‰1ๅนดไปฅไธŠใŒ็ตŒใกใพใ™ใ€‚ไปŠใฏใฏใฃใใ‚Šใจ่จ€ใˆใพใ™ใ€‚ใ‚ใฎๆฑบๆ–ญใฏใ€่‡ชๅˆ†ใซใจใฃใฆๆœ€ๅ–„ใฎ้ธๆŠžใ ใฃใŸใจใ€‚ใ‚‚ใกใ‚ใ‚“ใ€ไบบใฏ้ŽๅŽปใฎๆฑบๆ–ญใ‚’ๆญฃๅฝ“ๅŒ–ใ—ใŒใกใงใ™ใ€‚็งใ‚‚ใใ†ใ—ใฆใ„ใ‚‹ใฎใ‹ใ‚‚ใ—ใ‚Œใชใ„ใ€‚ๅฎŒๅ…จใชๅฎข่ฆณๆ€งใŒใ‚ใ‚‹ใจใฏ่จ€ใˆใพใ›ใ‚“ใ€‚ใใ‚Œใงใ‚‚ใ€ใชใœใ‚ใฎ้ธๆŠžใŒๆญฃใ—ใ‹ใฃใŸใจๆ€ใ†ใฎใ‹ใ‚’ใ€ใกใ‚ƒใ‚“ใจ่ชฌๆ˜Žใ—ใŸใ„ใจๆ€ใ„ใพใ™ใ€‚

ๅฝ“ๆ™‚ใฎ็งใฏใ€ใƒ—ใƒญใƒ€ใ‚ฏใƒˆใ‚’ใคใใ‚‹ใ“ใจใธใฎ็พŽ็š„ๆ„Ÿ่ฆšใ‚„ใ‚ฏใƒฉใƒ•ใƒˆใƒžใƒณใ‚ทใƒƒใƒ—ใŒใ€่‡ชๅˆ†ใฎไบบ็”ŸใซใŠใ‘ใ‚‹ไธญๅฟƒ็š„ใชๆŸฑใฎใฒใจใคใ ใจ่ช่ญ˜ใ™ใ‚‹ใ‚ˆใ†ใซใชใฃใฆใ„ใพใ—ใŸใ€‚Azure AI Teamใซใฏใ€ๆ•™ใˆใฆใ„ใŸใ ใ„ใŸใ“ใจใ™ในใฆใซๆทฑใๆ„Ÿ่ฌใ—ใฆใ„ใพใ™ใ€‚ใŸใ ๅŒๆ™‚ใซใ€ๅคง่ฆๆจกใง่ค‡้›‘ใชใƒ—ใƒฉใƒƒใƒˆใƒ•ใ‚ฉใƒผใƒ ใฎไธŠใซๆง‹็ฏ‰ใ•ใ‚ŒใŸใ‚ตใƒผใƒ“ใ‚นใฎไธ€ใ‚ณใƒณใƒใƒผใƒใƒณใƒˆใ‚’ใ€ๅนพ้‡ใ‚‚ใฎ็ต„็น”้šŽๅฑคใฎใชใ‹ใงๆ‹…ๅฝ“ใ—ใฆใ„ใ‚‹ใจใ€ไป•ไบ‹ใซๆœฌๅฝ“ใฎๆ„ๅ‘ณใงใฎใ‚ฏใƒฉใƒ•ใƒˆใƒžใƒณใ‚ทใƒƒใƒ—ใ‚’ๆŒใก่พผใ‚€ใ“ใจใŒใ‚ใ‚Šใจ้›ฃใ—ใ‹ใฃใŸใ€‚

ใ‚‚ใฃใจใƒ•ใƒฉใƒƒใƒˆใช็ต„็น”ใงใ€ใƒ—ใƒญใƒ€ใ‚ฏใƒˆใฎๆ–นๅ‘ๆ€งใ‚’ๅฎš็พฉใ™ใ‚‹ใ“ใจใซ้–ขใ‚ใ‚Šใ€ใใ“ใซ่ฒฌไปปใ‚’ๆŒใฃใฆๅ‹•ใ‘ใ‚‹็’ฐๅขƒใ‚’็ตŒ้จ“ใ—ใŸใ„ใจๆ€ใฃใฆใ„ใพใ—ใŸใ€‚

ใƒ—ใƒญใƒ€ใ‚ฏใƒˆใ‚’ใ‚ผใƒญใ‹ใ‚‰PMFใพใงๆŒใฃใฆใ„ใฃใŸใ“ใจใ‚‚ใ€ใ‚ผใƒญใ‹ใ‚‰ใคใใ‚ŠไธŠใ’ใŸ็ตŒ้จ“ใ‚‚ใ‚ใ‚Šใพใ›ใ‚“ใงใ—ใŸใ€‚ใ ใ‹ใ‚‰ใ“ใใ€VP of Productใจใ„ใ†ใƒญใƒผใƒซใซๆŒ‘ๆˆฆใ™ใ‚‹ๆฉŸไผšใ‚’ไธŽใˆใฆใใ‚ŒใŸLazuliใฎCEOใซใฏใ€ๆทฑใๆ„Ÿ่ฌใ—ใฆใ„ใพใ™ใ€‚็›ดๆŽฅใฎ็ตŒ้จ“ใŒไธ่ถณใ—ใฆใ„ใ‚‹้ ˜ๅŸŸใซ่ธใฟ่พผใ‚€ใƒใƒฃใƒณใ‚นใ‚’ใ‚‚ใ‚‰ใˆใพใ—ใŸใ€‚ใŠใ‹ใ’ใงใ€่‡ชๅˆ†ใŒๆœฌๅฝ“ใซใ‚„ใ‚ŠใŸใ‹ใฃใŸไป•ไบ‹ใซใ€ๅฐ‘ใ—ใšใค่ฟ‘ใฅใ„ใฆใ„ใฃใฆใ„ใ‚‹ๅฎŸๆ„ŸใŒใ‚ใ‚Šใพใ™ใ€‚

ๆฑ‚ใ‚ใ‚‹ใ‚‚ใฎใ‚’่ฟฝใ„ใ‹ใ‘ใ‚‹ใจใ€ใใฎใƒ—ใƒญใ‚ปใ‚น่‡ชไฝ“ใŒใ€่‡ชๅˆ†ใŒไฝ•ใ‚’ๆฑ‚ใ‚ใฆใ„ใฆใ€ไฝ•ใ‚’ๆฑ‚ใ‚ใฆใ„ใชใ„ใฎใ‹ใ‚’ใ‚ˆใ‚Š้ฎฎๆ˜Žใซใ—ใฆใใ‚Œใพใ™ใ€‚

ๆœ€่ฟ‘ๅญฆใ‚“ใ ใ“ใจใฎใฒใจใคใฏใ€ใƒ“ใ‚ธใƒใ‚นใฎไธญใงใƒ—ใƒญใƒ€ใ‚ฏใƒˆใ‚’ใคใใ‚‹ใจใ„ใ†ใ“ใจใฏใ€ใ‹ใชใ‚Šใฎ้ƒจๅˆ†ใŒใƒžใƒใ‚ธใƒกใƒณใƒˆใใฎใ‚‚ใฎใ ใจใ„ใ†ใ“ใจใงใ™ใ€‚ไพกๅ€คใ‚’ๅฑŠใ‘ใ‚‹ใซใฏใ€ใƒ—ใƒญใƒ€ใ‚ฏใƒˆใ ใ‘ใงใฏ่ถณใ‚Šใพใ›ใ‚“ใ€‚ใ‚จใƒณใ‚ธใƒ‹ใ‚ขใƒชใƒณใ‚ฐใ€ใ‚ปใƒผใƒซใ‚นใ€ใ‚ซใ‚นใ‚ฟใƒžใƒผใ‚ตใ‚ฏใ‚ปใ‚นใ€ใƒžใƒผใ‚ฑใƒ†ใ‚ฃใƒณใ‚ฐใ€ๆŽก็”จใ€่ฒกๅ‹™ใ€ใใ—ใฆใƒชใƒผใƒ€ใƒผใ‚ทใƒƒใƒ—ๅ…จไฝ“ใจใฎ้€ฃๆบใŒๅฟ…่ฆใงใ™ใ€‚ๆฉŸ่ƒฝใ‚’ใคใชใŽใ€็ทŠๅผต้–ขไฟ‚ใ‚’่งฃๆถˆใ—ใ€็†ๆƒณใจ้‹็”จใฎ็พๅฎŸใฎใ‚ใ„ใ ใงใƒˆใƒฌใƒผใƒ‰ใ‚ชใƒ•ใ‚’ๅˆคๆ–ญใ—็ถšใ‘ใ‚‹ๆ—ฅใ€…ใงใ™ใ€‚

ๅ•้กŒใฏใ‚ใ‚‰ใ‚†ใ‚‹ๆ–นๅ‘ใ‹ใ‚‰้ฃ›ใ‚“ใงใใพใ™ใ€‚

ใใ†ใ„ใ†็žฌ้–“ใซใ€ใƒžใ‚คใ‚ฏใƒญใ‚ฝใƒ•ใƒˆๆ™‚ไปฃใซๆ„Ÿใ˜ใฆใ„ใŸ่ค‡้›‘ใชๆฐ—ๆŒใกใ‚’ใตใจๆ€ใ„ๅ‡บใ™ใ“ใจใŒใ‚ใ‚Šใพใ™ใ€‚่ฒฌไปปใ€ๆœŸๅพ…ใ€็ต‚ใ‚ใ‚‰ใชใ„ไป•ไบ‹ใฎๆตใ‚Œใ€‚ใใ‚Œใฏใ€ใ‚‚ใฃใจๆ นๆœฌ็š„ใชๅ•ใ„ใ‚’็ชใใคใ‘ใฆใใพใ™ใ€‚ไบบใฏใฉใ‚“ใชๆกไปถใฎใ‚‚ใจใงใ€ๅฅๅ…จใซใ€ๆŒ็ถš็š„ใซๅƒใ‘ใ‚‹ใฎใ‹๏ผŸ

ๆจฉ้™ใจ่ฒฌไปปใฎใƒใƒฉใƒณใ‚นใฏใฉใ†ใ‚ใ‚‹ในใใ‹ใ€‚ใฉใฎใใ‚‰ใ„ใฎไป•ไบ‹้‡ใชใ‚‰็ถšใ‘ใ‚‰ใ‚Œใ‚‹ใฎใ‹ใ€‚ๅ ฑ้…ฌใฏไฝ•ใ‚’่งฃๆฑบใ—ใฆใ€ไฝ•ใ‚’่งฃๆฑบใ—ใชใ„ใฎใ‹ใ€‚ใ“ใ†ใ—ใŸๅ•ใ„ใฏใ€้›‡ใ‚ใ‚Œใฆใ„ใ‚‹้–“ใงใ‚‚่€ƒใˆใ‚‰ใ‚Œใพใ™ใ€‚ใงใ‚‚็งใฎๅ ดๅˆใ€ใ‚คใƒณใƒ‡ใ‚ฃใƒšใƒณใƒ‡ใƒณใƒˆใซใชใฃใฆๅˆใ‚ใฆใ€ใใ‚ŒใŒใƒชใ‚ขใƒซใชใ‚‚ใฎใซใชใ‚Šใพใ—ใŸใ€‚่‡ชๅ–ถๆฅญใฎใ‚ญใƒฃใƒชใ‚ขใŒ้•ทใ„ๅ…ˆ่ผฉใŒไปฅๅ‰่ฉฑใ—ใฆใใ‚ŒใŸใ“ใจใŒใ€ใ‚ˆใ†ใ‚„ใ่…‘ใซ่ฝใกใฏใ˜ใ‚ใพใ—ใŸใ€‚

้€€่ทใฏใ€ๅ˜ใชใ‚‹็’ฐๅขƒใฎๅค‰ๅŒ–ใงใฏใ‚ใ‚Šใพใ›ใ‚“ใงใ—ใŸใ€‚็งใซใจใฃใฆใใ‚Œใฏใ€ใ€Œๅƒใใ€ใ‚’ๅ†ๅฎš็พฉใ™ใ‚‹ใฏใ˜ใพใ‚Šใงใ—ใŸใ€‚

#writing