RunwellMangai Sundaram
AI-native product builderOpen to full-time roles & client work

Runwellby Mangai Sundaram

I turn the work your team keeps putting off into agents that run themselves.

Book a free 20-min callSee the work
Mangai Sundaram
$2M+in sales tracked daily by my agent
200K+users' data covered by my AI analyst
150+ hrsof manual work saved by my tools
$13Mconversions from 30+ A/B tests
Built at
Becoming You LabsCVS HealthAaron's PresentsDandelion HealthOptum LabsUC Berkeley
Selected work

Systems I built, running in the real world.

Each one replaced a manual process a real team was stuck with.

AI agentsFull-stack platformsData & analyticsE-commerceInternal tools
# ask-lens Slack
SamWhich value shows up most for managers this quarter?
LensChecking the live warehouse… here's the breakdown by role.
Logged to NotionHelpful
AI agentfor a Series A startup

LensAn AI data analyst anyone on the team can message in Slack.

200K+users of live assessment data, answerable in plain English
  • Turns everyday questions into queries on the live data warehouse
  • Remembers the thread for 15 minutes and caches repeat questions
  • Logs every question and rating, so answers improve over time
Claude APISlackSnowflakeNotion
Projects 2026–27Pipeline
New
Planning
Scheduled
Done
Edited by Ben 2 min agoUndo
Full platformfor a youth nonprofit

CompassA custom CRM and operations platform that runs an entire nonprofit program.

12 yrsof records unified and moved off a spreadsheet
  • Takes every application through a pipeline to a finished project, with roadmap, by-school and on-site phone views
  • Tracks kids, schools, mentors and event attendance, with live insights
  • Role-based access, with every edit tracked by name and undoable
  • Pulls new applications from the old website every 15 minutes
Full-stack web appAuth & rolesData migrationRailway
Good morning Golden Hour
Save 1h 30m of travelMove
3 clients waiting on a replyReply
Wednesday doesn't workFix
AI agentfor a New York photographer

Golden HourAn AI booking assistant that runs a photographer's calendar, inbox and travel.

3 → 1inboxes: website, Pixieset and Instagram inquiries in one place
  • Drafts every reply with her packages and times that fit her calendar
  • Catches double-bookings and commutes that can't work
  • Groups shoots by neighborhood and sends a morning brief
Try the demo ↗Agent designCalendar logic
Send a gift Checkout
"Happy birthday! Thought you'd love this."
3 recipients Unique codesReady
Deliver Friday, 9 AMScheduled
E-commercefor a Series A startup

GiftflowA gifting store, frontend to backend, that opened a new way to sell.

0 → livedesigned, built and launched without an engineering team
  • Buy any number of gifts and add a personal message
  • Each recipient gets a unique code by email, at the time the buyer picks
  • Orders and emails flow into the existing store and marketing tools
See it live ↗Next.jsSupabaseWooCommerceKlaviyo
More systems in production

Internal tools teams relied on daily.

Pulse

Sales agent
$2M+

in sales reported to Slack every morning, by product, without anyone pulling a report.

SnowflakeClaudeGitHub Actions

Partner Portal

Web app
100+

coaches sign in to see every sale made with their code and get an email for each one.

Google sign-inStripeDagster

Shift Index

AI model
64,000

jobs scored on how much AI will change them, with the skills and education each one needs.

Data scienceAI scoring

Weekly Digest

Reporting agent
Every week

team updates from Slack and Linear, written up in Notion and emailed to the CTO.

SlackLinearNotion

Tablemates

Matching tool
130 guests

grouped into dinner tables by shared values, in under an hour.

Assessment dataGrouping

Slash Coupon

Slack command
1 command

creates a store coupon from Slack, so the team stops asking an engineer.

SlackWooCommerce
Free consultation with Runwell

Have a process that eats your week?

Let's talk it through. Schedule 20-minutes with me.

  1. Pick a time that works for you
  2. Share the problem in a sentence or two
  3. Leave with a plan, no obligations.
Schedule Now
About me

I'd rather build the fix than wait for one.

I became an AI-native builder because I got tired of waiting around for someone else to solve my problems or improve my workflows. That feeling turned into the work on this page.

Outside of building, you'll find me writing about what I'm learning as a human-being on Substack, working out in a barre studio, or testing new vegan recipes and discovering the best sweet treats around the world.

Read my SubstackLinkedIn

Becoming You Labs

2025–26Founding data scientist and AI builder Series A

CVS Health

2023–25Data Scientist 30+ A/B tests$13M in conversions

Dandelion Health

2023Intern 100M+ health records made analysis-ready

Optum Labs

2021Intern UnitedHealthcare

UC Berkeley, B.A. in Data Science and Public Health

Contact

Have something that should run itself?

Book a free 20-min callMessage me on LinkedInSubstack