Jeff Rogers · Atriumn

Engineering leadership for teams building with AI.

Twenty-five years building software and the teams behind it, at Thoughtworks, Groupon, Angie's List, Centro, Tempus AI and Pinger. Today I work with founders and engineering leaders as a fractional CTO, advisor or hands-on builder, and I build my own products, starting with Idynic.

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598 PRs merged this week by my agent build loop

Live from the build loop

Shipping right now.

Issues go in, reviewed pull requests come out. Every row is a real build by the agent pipeline I run, with what it cost and how many tries it took.

How the loop works →

PRs merged, last 7 days: 598
agent builds shown: 29
verified on the first try: 50%
median compute per build: $0.44

Wed 4:21pRunbookAdded a main screenfeaturesonnet12 tool calls2 test runs≈$0.26verified · try 3
Wed 4:20pRunbookAdded a new page viewfeaturesonnet22 tool calls5 test runs≈$0.51revising
Wed 4:05pRunbookAdded a new mobile screenfeaturesonnet7 tool calls0 test runs≈$0.27revising
Wed 3:32pRunbookAdded message uploadsfeaturesonnet14 tool calls2 test runs≈$0.33revising
Wed 3:32pRunbookAdded a new view to a screenfeaturesonnet25 tool calls2 test runs≈$0.43revising
Wed 3:32pRunbookShipped a featurefeaturesonnet29 tool calls2 test runs≈$0.46verified
Wed 2:03pBuild loopRan the build loop's self-testself-testhaiku12 tool calls2 test runs≈$0.05verified · try 2
Wed 2:04pBuild loopRan the build loop's self-testself-testhaiku15 tool calls1 test run≈$0.54failed
Wed 2:00pBuild loopRan the build loop's self-testself-testhaiku16 tool calls1 test run≈$0.27revising
Wed 2:31pRunbookShipped a featurefeaturesonnet11 tool calls1 test run≈$0.27verified · try 3
Wed 2:34pRunbookAdded a screen viewfeaturesonnet49 tool calls5 test runs≈$0.82revising
Wed 2:40pAllographstealth1 PR mergedmerged
Wed 1:57pRunbookAdded a message stepfeaturesonnet10 tool calls1 test run≈$0.29revising
Wed 2:05pRunbookAdded new sorting to ai outputfeaturesonnet24 tool calls3 test runs≈$0.43verified
Wed 3:21pRunbookAdded a new mobile screenfeaturesonnet29 tool calls0 test runs≈$0.65revising
Wed 2:37pRunbookAdded support for contentfeaturesonnet35 tool calls3 test runs≈$0.91revising
Wed 1:25pRunbookAdded an AI output stepfeaturesonnet15 tool calls2 test runs≈$0.32verified · try 3
Wed 1:12pRunbookAdded a new viewfeaturesonnet37 tool calls2 test runs≈$0.74verified
Wed 1:10pRunbookShipped a featurefeaturesonnet37 tool calls2 test runs≈$0.47revising
Wed 11:55aAllographstealth1 PR mergedmerged
Wed 11:53aRunbookAdded message notificationsfeaturesonnet24 tool calls2 test runs≈$0.44verified
Wed 11:44aAllographstealth1 PR mergedmerged
Wed 1:07pRunbookAdded an API integrationfeaturesonnet45 tool calls6 test runs≈$1.44verified
Wed 11:49aRunbookAdded a background data cleanup stepfeaturesonnet14 tool calls2 test runs≈$0.33verified · try 2
Wed 12:34pRunbookAdded an AI outputfeaturesonnet12 tool calls3 test runs≈$0.52revising
Wed 12:56pRunbookAdded message supportfeaturesonnet14 tool calls2 test runs≈$0.58revising
Wed 10:48aAllographstealth1 PR mergedmerged
Wed 9:55aRunbookFixed a workflow issueworkflowsonnet22 tool calls3 test runs≈$0.36verified
Wed 9:22aAllographstealth1 PR mergedmerged
Wed 10:25aRunbookAdded AI outputfeaturesonnet37 tool calls4 test runs≈$0.77revising
Wed 10:25aRunbookAdded upload support to messagesfeaturesonnet30 tool calls3 test runs≈$0.55revising
Wed 8:46aRunbookFixed a screen display issuefixsonnet11 tool calls1 test run≈$0.35verified · try 2
Wed 9:00aAllographstealth1 PR mergedmerged
Wed 8:42aAllographstealth1 PR mergedmerged
Wed 9:30aAllographstealth1 PR mergedmerged
Wed 9:20aAllographstealth1 PR mergedmerged
Wed 8:44aRunbookAdded a background data cleanupfeaturesonnet20 tool calls2 test runs≈$0.36merged
Wed 8:50aAllographstealth1 PR mergedmerged
Wed 8:27aRunbookFixed a screen issuefixsonnet48 tool calls7 test runs≈$1.02revising
Wed 8:27aAllographstealth1 PR mergedmerged

Wed 4:21pRunbookAdded a main screenfeaturesonnet12 tool calls2 test runs≈$0.26verified · try 3
Wed 4:20pRunbookAdded a new page viewfeaturesonnet22 tool calls5 test runs≈$0.51revising
Wed 4:05pRunbookAdded a new mobile screenfeaturesonnet7 tool calls0 test runs≈$0.27revising
Wed 3:32pRunbookAdded message uploadsfeaturesonnet14 tool calls2 test runs≈$0.33revising
Wed 3:32pRunbookAdded a new view to a screenfeaturesonnet25 tool calls2 test runs≈$0.43revising
Wed 3:32pRunbookShipped a featurefeaturesonnet29 tool calls2 test runs≈$0.46verified
Wed 2:03pBuild loopRan the build loop's self-testself-testhaiku12 tool calls2 test runs≈$0.05verified · try 2
Wed 2:04pBuild loopRan the build loop's self-testself-testhaiku15 tool calls1 test run≈$0.54failed
Wed 2:00pBuild loopRan the build loop's self-testself-testhaiku16 tool calls1 test run≈$0.27revising
Wed 2:31pRunbookShipped a featurefeaturesonnet11 tool calls1 test run≈$0.27verified · try 3
Wed 2:34pRunbookAdded a screen viewfeaturesonnet49 tool calls5 test runs≈$0.82revising
Wed 2:40pAllographstealth1 PR mergedmerged
Wed 1:57pRunbookAdded a message stepfeaturesonnet10 tool calls1 test run≈$0.29revising
Wed 2:05pRunbookAdded new sorting to ai outputfeaturesonnet24 tool calls3 test runs≈$0.43verified
Wed 3:21pRunbookAdded a new mobile screenfeaturesonnet29 tool calls0 test runs≈$0.65revising
Wed 2:37pRunbookAdded support for contentfeaturesonnet35 tool calls3 test runs≈$0.91revising
Wed 1:25pRunbookAdded an AI output stepfeaturesonnet15 tool calls2 test runs≈$0.32verified · try 3
Wed 1:12pRunbookAdded a new viewfeaturesonnet37 tool calls2 test runs≈$0.74verified
Wed 1:10pRunbookShipped a featurefeaturesonnet37 tool calls2 test runs≈$0.47revising
Wed 11:55aAllographstealth1 PR mergedmerged
Wed 11:53aRunbookAdded message notificationsfeaturesonnet24 tool calls2 test runs≈$0.44verified
Wed 11:44aAllographstealth1 PR mergedmerged
Wed 1:07pRunbookAdded an API integrationfeaturesonnet45 tool calls6 test runs≈$1.44verified
Wed 11:49aRunbookAdded a background data cleanup stepfeaturesonnet14 tool calls2 test runs≈$0.33verified · try 2
Wed 12:34pRunbookAdded an AI outputfeaturesonnet12 tool calls3 test runs≈$0.52revising
Wed 12:56pRunbookAdded message supportfeaturesonnet14 tool calls2 test runs≈$0.58revising
Wed 10:48aAllographstealth1 PR mergedmerged
Wed 9:55aRunbookFixed a workflow issueworkflowsonnet22 tool calls3 test runs≈$0.36verified
Wed 9:22aAllographstealth1 PR mergedmerged
Wed 10:25aRunbookAdded AI outputfeaturesonnet37 tool calls4 test runs≈$0.77revising
Wed 10:25aRunbookAdded upload support to messagesfeaturesonnet30 tool calls3 test runs≈$0.55revising
Wed 8:46aRunbookFixed a screen display issuefixsonnet11 tool calls1 test run≈$0.35verified · try 2
Wed 9:00aAllographstealth1 PR mergedmerged
Wed 8:42aAllographstealth1 PR mergedmerged
Wed 9:30aAllographstealth1 PR mergedmerged
Wed 9:20aAllographstealth1 PR mergedmerged
Wed 8:44aRunbookAdded a background data cleanupfeaturesonnet20 tool calls2 test runs≈$0.36merged
Wed 8:50aAllographstealth1 PR mergedmerged
Wed 8:27aRunbookFixed a screen issuefixsonnet48 tool calls7 test runs≈$1.02revising
Wed 8:27aAllographstealth1 PR mergedmerged

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How I help

Fractional CTO / VP Engineering

Part-time technical leadership: strategy, hiring, architecture and delivery, two to three days a week.

Best for: Series A-C startups scaling from 5 to 50 engineers

Technical Advisory

Regular sessions with founders and engineering leaders on the decisions that shape the team and the platform.

Best for: Founders and eng leaders navigating critical inflection points

Project Consulting

Time-boxed engagements on one hard problem: an AI integration, a migration, a delivery bottleneck.

Best for: Teams facing a specific technical challenge with a deadline

How engagements work →

Now building

Products and platforms I'm building at the intersection of engineering and entrepreneurship.

Everything I've built →

Idynic

Founder

Active

product

An AI career-identity platform. It turns a work history into an evidence-backed profile, then generates tailored résumés, cover letters and recruiter-facing pages from it. Solo-built, and this site runs on it.

Learn more →Visit site ↗

Sabir Homes

Founder and CTO

Active

service

A home maintenance and concierge service for homeowners in Chicago's western suburbs. Built the operations platform the business runs on and its customer booking funnel.

Learn more →Visit site ↗

Ultimate Ninjas

Co-Owner

Active

service

A youth fitness business I co-own, where I run program operations, curriculum and customer experience.

Learn more →

This site is generated live from my Idynic profile.

What Clients Say

A few words from the people I've had the privilege of building with.

AI application development

Jeff has been an invaluable technical partner. The AI-powered tools he built helped us demonstrate real-world value to customers faster than I thought possible. He understands the sales cycle and delivers production-quality software on startup timelines.

Matt P.

Founder & Lead Investor · Sabir Homes

Custom platform development

I came to Jeff with a messy set of manual workflows and walked away with a platform that actually runs my business. He asked the right questions, moved fast, and built something my team adopted immediately. Worth every dollar.

Jamiel S.

Founder · Property Management

Fractional engineering leadership

Jeff joined us as a fractional technical lead at a critical moment — we were under deadline pressure to deliver a government proposal platform and needed someone who could architect it right and get it across the finish line. He did both, and the quality of the work gave us real credibility with our first clients.

Brian R.

CEO · GovTech Startup

AI advisory

Jeff has been an indispensable AI advisor for our team. He cuts through the noise and keeps us oriented on what actually matters in the AI ecosystem — the right tools, the right timing, and how it all applies to our business. His guidance has shaped how we think about our product roadmap.

Justin U.

CEO · Document Storage

Have a team or a product that needs a senior hand?

Book an intro call