Full-stack developer & maker of things

Variations
on a "String"

Storyteller. Problem solver. One string at a time.

I've always loved making things — the patience, precision, and creativity my hobbies taught me are exactly what make me a strong engineer. I've spent the last 8 years building software the same way I make everything: like a story worth finishing.

01 — Work

Things I've Built

8 years of shipping full-stack applications — from scrappy MVPs to scalable platforms — plus the things I build on my own time.

Projects

Personal Project · 2026

Karaoq

A browser-based karaoke queue manager powered by YouTube. A host spins up a room and shares a 5-character code; singers join from any device, search for songs, queue them, and watch their spot in real time — no apps, no DJ software.

  • Next.js
  • TypeScript
  • MongoDB
  • YouTube API
  • Vercel

Personal Project · 2026

Kannanao

An AI-powered Japanese flashcard studio. Paste words or upload a PDF and Gemini generates readings, meanings and example sentences. Four practice modes, group learning with invite codes and leaderboards, plus XP, streaks and a cosmetic shop.

  • Next.js
  • React 19
  • Supabase
  • Gemini API
  • MUI

Personal Project · 2023

Brewhouse LP

A fully responsive landing page built for a local coffee shop as a design and development exercise. Clean layout, warm aesthetic, deployed live.

  • React
  • Next.js
  • CSS
  • Vercel

1st Place · All-Women Global Virtual Hackathon · 2021

Let's Disco

1st-place winner at the 2021 All-Women Global Virtual Hackathon hosted by The Expat Woman. Let's Disco is a SaaS platform that connects refugee women with remote ESL teachers — letting women managing childcare, limited transportation, or tight budgets learn English safely from home on a flexible schedule.

  • SaaS
  • Figma
  • Product Design
  • Social Impact

Experience

Software Development Manager · ReUp Education · 2025–present

ReUp Education

Joined as a Senior Frontend React Engineer building responsive web apps that help colleges re-engage and graduate the millions of adults who've stopped out — then promoted to Software Development Manager within 10 months. I now lead and mentor the engineering team, own technical design and delivery, and partner with product to ship features that widen access to higher education.

  • React
  • TypeScript
  • GraphQL
  • Node.js
  • AWS
Visit Platform →

Senior Software Engineer · Encoura · 2022–2025

MyEncoura

SaaS platform providing enrollment insights and data-driven solutions for colleges. Led front-end architecture across multiple product teams, built and maintained the company's Design Language System (DLS) — a reusable open-source React component library — and developed production-ready Storybook documentation for cross-team adoption. Promoted from Frontend Engineer to Senior Software Engineer.

  • React
  • TypeScript
  • Material UI
  • GraphQL
  • Next.js
Visit Platform →

Frontend Engineer · Nextradata · 2021–present

Variablink

SaaS platform enabling direct mail campaign management and personalized marketing for nonprofits. Build UI components and workflows in React, TypeScript, and Material UI, design features in Figma and translate them into production-ready interfaces, and integrate GraphQL and REST APIs using Apollo Client.

  • React
  • TypeScript
  • Material UI
  • GraphQL
  • Next.js
Visit Platform →

Frontend Engineer · Nextradata · 2021–present

Novamail

Personalized marketing platform for targeted direct mail campaigns. Focused on code quality, performance optimization, and seamless campaign customization experiences.

  • React
  • TypeScript
  • Node.js
  • CSS
Visit Live Site →

Full-Stack Engineer · 2018–2021

JobFit

SaaS platform connecting job seekers and employers. Built a bookmarking feature, optimized API calls to reduce page load time, integrated Google Analytics and Mixpanel, and updated the app header from Figma wireframes.

  • React
  • Semantic UI
  • styled-components
  • Node.js
  • MySQL
Visit Live Site →
02 — Made by Hand

Things I've Handmade

Crochet, knitting, cross-stitch, sewing, nail art — the other half of the maker life.

halloween-table-runner-1 halloween-table-runner-2

Halloween Table Runner

Crochet · Completed October 30th, 2022

baby-birth-announcement-bears-1

Baby Birth Announcement — Bears

Cross-stitch · Completed May 22nd, 2019

baby-blanket-poro-lovey-1

Baby Blanket & Matching Poro Lovey

Crochet · Completed September 21st, 2022

baby-blanket-dnd-space-1

Baby Blanket — D&D & Space Themed

Crochet · Completed June 23rd, 2021

wedding-announcement-doves-heart-wreath-1

Wedding Announcement — Doves + Heart Wreath

Cross-stitch · Completed September 4th, 2018

fancy-burp-cloths-1

Fancy Burp Cloths

Crochet · Completed August 23rd, 2019

slouchy-hat-2

Slouchy Hat

Knitting · Completed May 9th, 2019

baby-blanket-1

Baby Blanket

Crochet · Completed February 14th, 2019

dragonscale-dice-bags-1 dragonscale-dice-bags-2 dragonscale-dice-bags-3

Dragonscale Dice Bags

Crochet · Completed August 29th, 2018

wedding-announcement-old-english-1

Wedding Announcement — Old English Blessing

Cross-stitch · Completed August 29th, 2018

wedding-announcement-doves-bells-1

Wedding Announcement — Doves & Bells

Cross-stitch · Completed October 20th, 2017

bookmarks-gamer-friends-1 bookmarks-gamer-friends-2

Bookmarks for Gamer Friends

Crochet · Completed August 18th, 2016

han-solo-quote-1

Han Solo + Quote

Cross-stitch · Completed February 22nd, 2016

may-cthulu-devour-1

May Cthulu Devour This House Last

Cross-stitch · Completed February 5th, 2016

katara-bookmark-1

Katara Bookmark

Cross-stitch · Completed December 30th, 2015

dark-side-bookmark-1

Dark Side Bookmark

Cross-stitch · Completed December 28th, 2015

gift-for-my-dad-1

Gift for my Dad

Cross-stitch · Completed December 21st, 2015

the-guardian-teresa-wentzler-1

The Guardian by Teresa Wentzler

Cross-stitch · Completed December 6th, 2015

wedding-announcement-zelda-link-1

Wedding Announcement — Zelda + Link

Cross-stitch · Completed September 1st, 2015

captain-hook-costume-1

Captain Hook Costume

Sewing · Completed October 31st, 2014

stark-sigil-scarf-1

Stark Sigil Scarf

Knitting · Completed 2014

viking-hat-1 viking-hat-2

Viking Hat

Crochet · Completed February 18th, 2014

baby-blanket-soccer-1 baby-blanket-soccer-2

Baby Blanket — Soccer

Crochet · Completed April 15th, 2013

jedi-tunic-1 jedi-tunic-2

Jedi Tunic

Sewing · Completed October 3rd, 2012

03 — Videos

Things I've Edited

Videos I've created and edited — music, covers, and whatever else catches my eye.

Video · Created & Edited

Video · Created & Edited

Video · Created & Edited

Video · Created & Edited

04 — About

One person,
many strings.

I'm Anna Mendez Perdomo — a Software Development Manager based in Southern California with 8+ years building front-end-heavy SaaS applications. I specialize in React, TypeScript, and Material UI, and I love turning complex UX requirements into pixel-perfect, accessible interfaces. I also speak Japanese at an advanced conversational level — I studied abroad at Nanzan University in Nagoya and earned a B.A. in Japanese, Magna Cum Laude, from Cal State Fullerton.

Outside the terminal, I'm a maker in every sense. Crochet, knitting, cross-stitch, sewing, nail art — if it involves yarn, thread, or a hook, I'm probably doing it. I also play piano and sing.

"Variations on a String" isn't just a pun — it's a philosophy. Every project, every stitch, every note is a variation on a theme.

Front-end

React, TypeScript, Material UI, Next.js, Redux

Back-end

Node.js, Express, GraphQL, MySQL, MongoDB

Education

Hack Reactor — Advanced JS · Cambridge — CELTA · Nanzan Univ. — Japanese · CSUF — B.A. Japanese, Magna Cum Laude

2003 – 2018

Artisan

Crochet, knitting, cross-stitch, sewing, nail art

Music

Piano, vocals, singing & performance

Video Production

Filming, editing, post-production & storytelling

8+
Years of Code
3
SaaS Platforms Shipped
Works in progress at any time
1
Ok Business Name