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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
386
agent builds shown
39
verified on the first try
0%
median compute per build
$0.60
  • Tue 2:21pRunbookFixed a screen layout bugfixsonnet18 tool calls1 test run≈$0.31verified · try 2
  • Tue 2:40pRunbookRedesigned a main screenredesignsonnet20 tool calls0 test runs≈$0.25verified · try 2
  • Tue 1:50pRunbookFixed a layout bugfixsonnet24 tool calls2 test runs≈$0.40revising
  • Tue 1:40pRunbookRedesigned a main screenredesignsonnet101 tool calls0 test runs≈$1.74revising
  • Tue 11:02pIdynicAdded AI outputsfeatureopus47 tool calls1 test run≈$1.75revising
  • Tue 10:35aRunbookRedesigned mobile screensredesignopus119 tool calls0 test runs≈$5.04verified · try 10
  • Tue 11:35aIdynicImproved caching for ai outputupgradeopus36 tool calls1 test run≈$1.04verified · try 7
  • Tue 9:36aIdynicAdded an integration stepfeatureopus25 tool calls1 test run≈$0.81revising
  • Tue 8:10aRunbookRedesigned mobile screensredesignopus48 tool calls0 test runs≈$1.30revising
  • Tue 9:35aIdynicAdded an AI output integrationfeatureopus37 tool calls1 test run≈$1.21revising
  • Tue 8:10aIdynicImproved caching for ai outputupgradeopus89 tool calls3 test runs≈$3.34revising
  • Tue 8:10aIdynicAdded an integrationfeatureopus50 tool calls2 test runs≈$1.46revising
  • Tue 6:46aRunbookRedesigned screen layoutsredesignsonnet37 tool calls0 test runs≈$0.68revising
  • Tue 3:35aBuild loopRan the build loop's self-testself-testhaiku16 tool calls1 test run≈$0.01verified · try 2
  • Tue 3:34aBuild loopRan the build loop's self-testself-testhaiku12 tool calls1 test run≈$0.01failed
  • Tue 3:33aBuild loopRan the build loop's self-testself-testhaiku14 tool calls1 test run≈$0.01revising
  • Tue 6:05aRunbookRedesigned mobile screen layoutsredesignsonnet18 tool calls0 test runs≈$0.35revising
  • Tue 1:16aRunbookRedesigned a screen layoutredesignsonnet15 tool calls0 test runs≈$0.26revising
  • Tue 12:36aRunbookRedesigned phone screensredesignsonnet98 tool calls0 test runs≈$2.25revising
  • Mon 11:25pRunbookRedesigned mobile screensredesignsonnet≈$0.00failed
  • Mon 11:20pRunbookRedesigned phone screensredesignsonnet24 tool calls0 test runs≈$0.45revising
  • Tue 12:00aRunbookRefined the design systemdesign-systemsonnet13 tool calls1 test run≈$0.22verified · try 4
  • Mon 10:56pRunbookRedesigned a screenredesignsonnet24 tool calls0 test runs≈$0.33revising
  • Mon 10:16pRunbookRedesigned mobile screensredesignsonnet103 tool calls0 test runs≈$2.32revising
  • Mon 9:40pRunbookRedesigned a main screenredesignopus101 tool calls9 test runs≈$3.90verified · try 4
  • Mon 9:05pRunbookRedesigned a screen layoutredesignopus25 tool calls1 test run≈$0.90revising
  • Tue 6:06aIdynicAdded a new api for usersfeatureopus3 tool calls0 test runs≈$0.25revising
  • Mon 10:25pRunbookAdjusted design systemdesign-systemsonnet9 tool calls1 test run≈$0.15revising
  • Mon 6:38pIdynicAdded an integration stepfeatureopus7 tool calls0 test runs≈$0.37revising
  • Tue 6:06aIdynicExtended caching across ai generationfeatureopus10 tool calls0 test runs≈$0.41revising
  • Tue 6:05aIdynicShipped a featurefeatureopus59 tool calls7 test runs≈$1.98revising
  • Mon 6:12pRunbookShipped a featurefeatureopusfailed
  • Mon 8:00pRunbookRedesigned a main screenredesignopus20 tool calls1 test run≈$0.60revising
  • Mon 6:25pRunbookPolished stylingpolishsonnet27 tool calls0 test runs≈$0.34revising
  • Mon 6:05pRunbookRedesigned a main screenredesignopus253 tool calls22 test runs≈$13.87revising
  • Mon 5:30pRunbookShipped a featurefeatureopus15 tool calls1 test run≈$0.57verified · try 3
  • Mon 4:35pRunbookAdded a settings screenfeatureopus22 tool calls2 test runs≈$0.50revising
  • Mon 6:12pRunbookShipped a featurefeatureopus68 tool calls4 test runs≈$1.90revising
  • Mon 1:45pRunbookAdded a settings stepfeatureopus105 tool calls3 test runs≈$4.20revising
  • Mon 6:13pIdynicAdded an output workflowfeatureopus55 tool calls1 test run≈$1.37revising

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?