Diego Adrian Guerrero

S

Senior Engineering Manager at Trellis Health · Web frontends · Next.js, TypeScript

Trellis Health
Columbus, OH · ET (UTC-5)
11+ years experience
Columbia University
English, German
HiringAdvising
Messaging unavailable

Overview

Currently at Trellis Health, where I lead web frontends with a team of 20. Shipped a rewrite that took build times from 21 minutes to under 5. Most at home with web performance and TypeScript. I write a small newsletter about web frontends.

Good reasons to reach out
  • Advice on web frontends
  • Candidates for the role I'm hiring for
  • Thoughtful intros to people in my field
  • Working sessions on Next.js
  • Speaking or podcast invitations
Please don't message about
  • Crypto token projects
  • Courses and coaching offers

Answers in batches on Fridays

Skills
GraphQLNext.jsweb performanceTypeScriptLinux
HiringHiring for a role
closes in 3 months

7 security engineer roles open on the web team in Columbus

Role
Security engineer
Level
Senior
Type
Full-time
Work mode
Remote within country
Compensation
$173k-$232k + equity
Team
Web, 5 people
Start
As soon as possible
Must have
Production experience with Next.js Production experience with GraphQL Comfort with ambiguity
Process
Decision within 10 days

Comp $179k-$311k. Three interviews over a week. Message me with one thing you shipped that you're proud of.

Columbus, OH · remote OKnext.jsweb performancetypescript
Open
AdvisingOpen to advising
closes in 3 months

Office hours for new engineering managers: web frontends and Linux

Topics
web frontends, TypeScript, web performance
Format
Async reviews
Terms
Paid
Capacity
One advisory role at a time
Best for
Teams scaling past 50 people

11 years of web frontends. Small equity or paid hours - flexible.

Columbus, OHtypescriptnext.jsgraphql
Open

Experience

  1. Senior Engineering Manager
    May 2026 - Present
    Trellis Health · 5 mo · Full-time · Columbus, OH
    • Brought on-call pages for web down from 21 a week to 3.
    • Led the migration of 73 services to web performance.
    • Grew the web team from 4 to 37 engineers.
  2. Senior Frontend Engineer
    Nov 2022 - Feb 2026
    Goldman Sachs · 3 yr 3 mo · Full-time · Columbus, OH
    • Built the experimentation framework 37 product teams use to ship changes safely.
    • Shipped 17 launches on the web team without a rollback.
  3. Senior Frontend Engineer
    Apr 2019 - Sep 2022
    Snap · 3 yr 5 mo · Full-time · Columbus, OH
    • Cut the main bundle by 42% and got LCP under 2.1 seconds.
  4. Frontend Engineer
    Sep 2016 - Apr 2019
    Goldman Sachs · 2 yr 7 mo · Full-time · Columbus, OH
    • Shipped 14 launches on the web team without a rollback.
  5. Frontend Engineer
    Dec 2015 - Sep 2016
    Intuit · 9 mo · Full-time · Columbus, OH
    • Cut the main bundle by 68% and got LCP under 1.8 seconds.

References

No references yet.

Education

  1. Columbia University
    BA, Computer Science
    2010 - 2014

Details

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