Manuel Garisto · Buenos Aires, Argentina · Remote-first
I take tangled legacy front-ends and hand back fast, accessible, well-tested products — with the pipelines to keep shipping them.
Senior frontend engineer with 6+ years building ADA-compliant e-commerce and ed-tech platforms for U.S. client teams, backed by production Node.js and Python/Flask experience. I raised Brilliant Earth PDP/PLP Lighthouse scores from 62 to 92, and cut a Harvard Business School batch job from 24 hours to 1.5 minutes with AWS Lambda and Jenkins.
I own frontend architecture, testing strategy, CI/CD pipelines and AI-assisted legacy migrations end to end — Next.js and Turborepo monorepos, Contentful and Builder.io components, WCAG 2.1 remediation. I lead code and architecture reviews, mentor developers, and give the occasional technical talk.
Grouped by what I reach for, not scored out of ten. Daily drivers are marked.
daily driver
03 — Projects
A portfolio tracking application. Track investments across multiple portfolios, log buy/sell/fee transactions, and monitor asset prices for stocks and CEDEARs — in pesos or either kind of dollar.
Harvard Business School (via Unosquare)
Sole frontend engineer on the OIDC login for the Shared Platform, owned end to end. 40+ React components as statically generated Next.js pages at 98/100 Lighthouse, 20+ content models migrated to Contentful behind a zero-downtime blue-green cutover, and AWS Lambdas that converted 120,000+ XML documents to HTML.
Brilliant Earth (via Unosquare)
Migrated PDP/PLP and 120+ components from Django + Jinja to a Next.js 14 Turborepo monorepo. A BFF layer cut API calls per page from 7 to 2 and LCP from 4.2s to 2.0s; Lighthouse went 62 → 92. Instituted PR reviews and coverage gates — velocity +20%, post-release bugs −30%.
Aerospike · OpenTech Alliance (via Unosquare)
Shipped a Next.js + MUI real-time database console in under 8 weeks; 120 Jest/RTL tests took coverage 35% → 85% and a 20-scenario Cypress suite kept escape defects under 1%. Earlier, 30+ Dynamics 365 PCF controls in 4 weeks with zero critical UAT defects.
Nearshorecode
React/Node recruitment analytics app in under 6 weeks, ingesting ~1,000 Trello webhook events a day into MongoDB and cutting weekly status prep from ~3h to 10 min. Five Express microservices, JWT-based RBAC, and blue-green releases to Heroku via GitHub Actions.
Freelance
Three green-field products delivered solo from discovery to production in under 12 weeks each — a casting-agency operations dashboard, a trivia game, and an artist–venue booking portal.
Universidad San Francisco Xavier de Chuquisaca, Bolivia
Node.js (Intermediate) certification, HackerRank — 2025.
“…diving head-first into the Lambda project and taking full ownership of it. I’m continuously impressed with your ability to take some high-level requirements and turn them into a highly functional product.”
Ben March · FE Architect, Harvard Business Publishing
“Manuel is a delight to work with. Ever eager to help out and learn new skills, he goes above and beyond to try to come up with suggestions on what more he can do from the task assigned. He’s great with Next.js, TypeScript and unit testing, and picked up things like Cypress needed for our project in a short span.”
Bhuvanasri Kalyana Sundaram · Senior Engineer, Aerospike
Performance
Brilliant Earth PDP/PLP from 62 to 92 on Lighthouse — LCP 4.2s → 2.0s after a BFF layer cut API calls per page from 7 to 2.
Automation
AWS Lambda and Jenkins took a Harvard Quick Cases batch job from 24 hours to 1.5 minutes, and converted 120,000+ XML documents to HTML.
Accessibility
ADA / WCAG 2.1 remediation across 160+ components on client e-commerce and ed-tech sites, verified with Axe, SortSite and manual AT passes.
Leadership
Led Nexus, an internal engineering guild of three developers, and gave the talk "Compound Design Patterns & Next.js SSR vs CSR".
AI-assisted delivery
Picked by Harvard to pilot an internal AI development tool on a production course migration — shipped in under two months, held to their coding standards.
Certification
Node.js (Intermediate), HackerRank — 2025.
06 — Contact