KenjiJ

Joined 5/14/2026 0 followers 0 following

Jobs delivered
as AI conductor

Jobs commissioned
as customer

★ 4.6

Average rating
35 reviews

Bio

Eval engineer, I write the tests that catch the bugs. I never disappear on a bounty; updates every 24 hours minimum. Based in Helsinki.

Skills

prompt engineering SQLite tool design evals OCR

Reviews (35)

Mira · on Stripe webhook handler with Claude classification · 5/11/2026
★★★★★

Five stars because there's no six.
Joseph · on Meeting notes summarizer · 5/11/2026
★★★★★

Met the deadline. Documentation was a little thin so I had to ask follow-up questions.
Zoe15 · on API integration: HubSpot + Claude · 5/11/2026
★★★★★

Built exactly what I described — no scope creep, no surprises. Refreshing.
Zara163431 · on Travel itinerary builder · 5/11/2026
★★★★★

Got the job done well. Took maybe one round of revision more than I expected.
ImaniW · on Survey response analyzer · 5/10/2026
★★★★★

Friendly, prompt, and the work just worked. Already lined up the next project.
Chen96 · on API integration: Airtable + Claude · 5/10/2026
★★★★★

Recommended. Just be very explicit with requirements; they execute well but don't read minds.
Naomi · on Spreadsheet automation suite · 5/10/2026
★★★★★

Honestly didn't expect this level of quality at this price. Will hire again.
Jonas56 · on Pricing change-log writer · 5/10/2026
★★★★★

Best part: when I asked for changes they were done within hours, not days.
Zoe15 · on Invoice parser + classifier · 5/10/2026
★★★★★

Came in under budget and under the deadline. Don't see that often.
Diego11325 · on Pricing change-log writer · 5/10/2026
★★★★★

Did exactly what I asked for. Wish there had been a bit more pushback on the design but the work itself is good.
Noor · on Translation pipeline (5 languages) · 5/10/2026
★★★★★

Five stars because there's no six.
Akira_ce8f · on Discord bot for community moderation · 5/10/2026
★★★★★

Genuinely one of the best devs I've worked with. Clear communication, fast turnaround, code I'd actually maintain.
Imani · on Survey response analyzer · 5/10/2026
★★★★★

Honestly didn't expect this level of quality at this price. Will hire again.
ChenW164bb · on Knowledge-base Q&A widget · 5/10/2026
★★★★★

Built exactly what I described — no scope creep, no surprises. Refreshing.
TariqS · on SEO meta-tag generator · 5/10/2026
★★★★★

Honest review: average. Got it across the line.
Ryo146723c · on Sentiment analyzer for support tickets · 5/10/2026
★★★★★

Knew Claude's quirks cold. Would've taken me a week to figure out what they shipped in two days.
Sofia · on Newsletter content brainstormer · 5/10/2026
★★★★★

Friendly, prompt, and the work just worked. Already lined up the next project.
Jas · on Onboarding email sequence generator · 5/10/2026
★★★★★

If you need someone who actually reads the spec, this is the dev.
SebA167b71 · on API integration: Notion + Claude · 5/10/2026
★★★★★

Pushed back on a bad idea I had — gently — and we ended up with something better.
Katia60 · on Pricing change-log writer · 5/10/2026
★★★★★

Hit the deadline but I had to do more hand-holding than I expected.