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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.

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
541
agent builds shown
33
verified on the first try
31%
median compute per build
$0.32
  • Thu 9:56aBuild loopRan the build loop's self-testself-testhaiku10 tool calls2 test runs≈$0.05verified · try 2
  • Thu 9:54aBuild loopRan the build loop's self-testself-testhaiku16 tool calls3 test runs≈$0.32failed
  • Thu 9:53aBuild loopRan the build loop's self-testself-testhaiku16 tool calls3 test runs≈$0.29revising
  • Thu 9:28aBuild loopRan the build loop's self-testself-testhaiku10 tool calls2 test runs≈$0.05verified · try 2
  • Thu 9:26aBuild loopRan the build loop's self-testself-testhaiku12 tool calls1 test run≈$0.29failed
  • Thu 9:26aBuild loopRan the build loop's self-testself-testhaiku27 tool calls2 test runs≈$0.58revising
  • Thu 9:52aAllographstealth1 PR mergedmerged
  • Thu 8:34aBuild loopRan the build loop's self-testself-testhaiku10 tool calls2 test runs≈$0.05verified · try 2
  • Thu 8:31aBuild loopRan the build loop's self-testself-testhaiku17 tool calls2 test runs≈$0.59failed
  • Thu 8:29aBuild loopRan the build loop's self-testself-testhaiku18 tool calls3 test runs≈$0.51revising
  • Thu 8:21aBuild loopRan the build loop's self-testself-testhaiku9 tool calls1 test run≈$0.05verified · try 2
  • Thu 8:18aBuild loopRan the build loop's self-testself-testhaiku13 tool calls1 test run≈$0.30failed
  • Thu 8:17aBuild loopRan the build loop's self-testself-testhaiku15 tool calls2 test runs≈$0.29revising
  • Thu 6:52aBuild loopRan the build loop's self-testself-testhaiku9 tool calls2 test runs≈$0.05verified · try 2
  • Thu 8:51aAllographstealth1 PR mergedmerged
  • Thu 6:49aBuild loopRan the build loop's self-testself-testhaiku18 tool calls2 test runs≈$0.33failed
  • Thu 6:47aBuild loopRan the build loop's self-testself-testhaiku20 tool calls1 test run≈$0.54revising
  • Thu 9:53aRunbookAdded an editing stepfeatureopus38 tool calls5 test runs≈$1.79verified · try 3
  • Thu 9:52aRunbookShipped a featurefeaturesonnet20 tool calls3 test runs≈$0.63verified
  • Thu 6:45aAllographstealth1 PR mergedmerged
  • Thu 6:43aAllographstealth1 PR mergedmerged
  • Thu 5:35aBuild loopRan the build loop's self-testself-testhaiku9 tool calls1 test run≈$0.05verified · try 2
  • Thu 6:38aRunbookShipped a featurefeatureopus33 tool calls4 test runs≈$2.17revising
  • Thu 5:32aBuild loopRan the build loop's self-testself-testhaiku12 tool calls2 test runs≈$0.29failed
  • Thu 5:32aBuild loopRan the build loop's self-testself-testhaiku14 tool calls2 test runs≈$0.29revising
  • Thu 9:23aRunbookShipped a featurefeaturesonnet35 tool calls2 test runs≈$0.60verified
  • Thu 5:41aAllographstealth1 PR mergedmerged
  • Thu 6:11aAllographstealth1 PR mergedmerged
  • Thu 8:56aRunbookClarified email wordingcopysonnet21 tool calls3 test runs≈$0.33verified
  • Thu 3:56aBuild loopRan the build loop's self-testself-testhaiku16 tool calls2 test runs≈$0.05verified · try 2
  • Thu 3:53aBuild loopRan the build loop's self-testself-testhaiku29 tool calls3 test runs≈$0.32failed
  • Thu 3:50aBuild loopRan the build loop's self-testself-testhaiku16 tool calls2 test runs≈$0.28revising
  • Thu 8:51aRunbookAdded a new account setup stepfeaturesonnet67 tool calls7 test runs≈$1.54verified
  • Thu 8:41aRunbookShipped a featurefeatureopus57 tool calls10 test runs≈$1.96verified
  • Thu 3:30aAllographstealth1 PR mergedmerged
  • Thu 2:40aBuild loopRan the build loop's self-testself-testhaiku8 tool calls1 test run≈$0.05verified · try 2
  • Thu 2:39aBuild loopRan the build loop's self-testself-testhaiku24 tool calls1 test run≈$0.36failed
  • Thu 2:36aBuild loopRan the build loop's self-testself-testhaiku16 tool calls1 test run≈$0.30revising
  • Thu 7:15aRunbookShipped a featurefeatureopus20 tool calls0 test runs≈$0.71verified · try 4
  • Thu 7:00aRunbookAdded a data viewfeatureopus45 tool calls6 test runs≈$1.13verified · try 4

Hover to pause. Failures and send-backs stay in the feed.

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.

Active

service

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

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?