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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
551
agent builds shown
37
verified on the first try
27%
median compute per build
$0.91
  • Thu 3:55pAllographstealth1 PR mergedmerged
  • Thu 12:40pOnrunbookAdded notification supportfeatureopus40 tool calls2 test runs≈$1.64verified · try 3
  • Thu 12:01pOnrunbookAdded notification supportfeatureopus58 tool calls2 test runs≈$1.79revising
  • Thu 11:35aOnrunbookAdded a data viewfeaturesonnet14 tool calls1 test run≈$0.25verified · try 3
  • Thu 11:41aOnrunbookAdded notification supportfeatureopus79 tool calls4 test runs≈$3.82revising
  • Thu 11:10aOnrunbookAdded a dashboard screenfeaturesonnet36 tool calls1 test run≈$0.67revising
  • Thu 10:50aOnrunbookAdded an approval step and new flowsfeatureopus38 tool calls3 test runs≈$1.41verified · try 5
  • Thu 10:17aOnrunbookAdded a new workflowfeatureopus26 tool calls2 test runs≈$0.77revising
  • Thu 9:57aOnrunbookAdded an approval stepfeatureopus15 tool calls1 test run≈$0.44revising
  • Thu 9:40aatriumn.comAdded a data viewfeatureopus26 tool calls1 test run≈$0.86verified
  • Thu 9:35aatriumn.comAdded new support for ai usersfeaturesonnet12 tool calls1 test run≈$0.21verified · try 2
  • Thu 9:25aatriumn.comAdded new support for ai usersfeaturesonnet14 tool calls1 test run≈$0.32revising
  • Thu 10:30aIdynicShipped a featurefeatureopus71 tool calls4 test runs≈$3.11verified
  • Thu 9:40aOnrunbookAdded an approval stepfeatureopus48 tool calls7 test runs≈$1.31revising
  • Thu 9:11aOnrunbookAdded an approval stepfeatureopus93 tool calls6 test runs≈$3.85revising
  • Thu 9:20aOnrunbookAdded a new account settings stepfeaturesonnet22 tool calls1 test run≈$0.31verified · try 3
  • Thu 8:35aOnrunbookShipped a featurefeaturesonnet12 tool calls1 test run≈$0.23revising
  • Thu 11:25aIdynicAdded a new mobile review flowfeaturesonnet36 tool calls1 test run≈$0.51verified · try 3
  • Thu 9:40aIdynicAdded a new backend apifeatureopus76 tool calls7 test runs≈$3.66verified
  • Thu 8:10aIdynicAdded a workflowfeaturesonnet58 tool calls4 test runs≈$1.11revising
  • Thu 8:20aOnrunbookAdded an account stepfeaturesonnet62 tool calls4 test runs≈$1.05revising
  • Thu 7:39aIdynicAdded an input stepfeatureopus3 tool calls0 test runsfailed
  • Thu 8:25aIdynicRedesigned mobile screensredesignopus2 tool calls0 test runs≈$0.24verified · try 6
  • Thu 7:39aIdynicAdded a notification flowfeatureopus2 tool calls0 test runsfailed
  • Thu 8:35aIdynicFixed an AI output issuefixopus86 tool calls8 test runs≈$4.12verified · try 4
  • Thu 4:25aIdynicUpdated AI output wordingcopysonnet33 tool calls4 test runs≈$0.63revising
  • Thu 3:35aBuild loopRan the build loop's self-testself-testhaiku15 tool calls1 test run≈$0.01verified · try 2
  • Thu 3:33aBuild loopRan the build loop's self-testself-testhaiku20 tool calls1 test run≈$0.02failed
  • Thu 3:33aBuild loopRan the build loop's self-testself-testhaiku16 tool calls1 test run≈$0.02revising
  • Thu 3:46aIdynicFixed AI outputfixsonnet29 tool calls2 test runs≈$0.50revising
  • Thu 4:15aIdynicUpdated page copycopyopus27 tool calls0 test runs≈$0.90verified · try 2
  • Thu 3:10aIdynicFixed an AI output issuefixsonnet64 tool calls11 test runs≈$1.64revising
  • Thu 2:55aIdynicUpdated page wordingcopyopus58 tool calls1 test run≈$2.05revising
  • Thu 7:35aIdynicAdded a new input flowfeatureopus30 tool calls3 test runs≈$0.92revising
  • Thu 8:20aIdynicAdded a data foundationfeatureopus64 tool calls0 test runs≈$3.28verified
  • Thu 7:35aIdynicAdded mobile screen and settings supportfeatureopus34 tool calls3 test runs≈$1.06revising
  • Thu 1:46aOnrunbookShipped a featurefeatureopus39 tool calls1 test run≈$1.13verified · try 4
  • Thu 1:46aIdynicAdded mobile settings and screen supportfeaturesonnet37 tool calls8 test runs≈$0.91revising
  • Thu 2:10aIdynicAdded an input stepfeatureopus180 tool calls16 test runs≈$7.30revising
  • Thu 1:12aOnrunbookAdded a data viewfeatureopus17 tool calls2 test runs≈$0.39revising

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?