MICHAEL TOMDIO

MICHAEL TOMDIO

Senior Full-Stack Engineer | UI/UX + AI Engineer (10 Years) | Freelance Available

10 yrs experience · Houston, TX · <10 hrs/week

About

Full Stack, UI/UX, and AI Engineer with 10 years building products people love—delivering pixel-perfect interfaces and scalable AI-powered systems. Experienced shipping production RAG pipelines, LLM document analysis, and AI-assisted experiences with real-time dashboards, component libraries/design systems, CI/CD guardrails, and DevOps/observability. Available for freelance contracts.

Skills

A/B TestingA/B testingBigQueryDesign SystemsDockerExpressFastAPIFigmaGraphQLInformation ArchitectureKubernetesNext.jsNode.jsNumPyPandasPostgreSQLPrototypingPythonRESTReactReact NativeRedisSQLStorybookStreamlitSupabaseSvelteTailwind CSSTerraformThree.jsTypeScriptUsability TestingUser Researchpandas

Experience

  • Senior AI & Full Stack Engineer (Freelance) · Independent Contractor — Various Clients2022

    ▸ FinTech Client: Architected and shipped a production RAG platform for a FinTech SaaS client — ingesting 500k+ support documents into Pinecone, routing queries through GPT-4 with custom prompt chains, and surfacing answers with inline citations; reduced support ticket volume by 42% in 90 days and saved the client an estimated $180k/yr in agent costs. ▸ HealthTech Client: Designed and built a real-time patient analytics dashboard from scratch, including WebSocket data pipeline, D3 visualizations, and role-based access control; scaled to 50k+ MAU with 99.97% uptime over 18 months of operation. ▸ E-commerce Client: Delivered a 120-component Figma design system paired with a fully typed React + Storybook component library; enforced via automated visual regression tests in CI/CD, cutting new-feature UI build time by 60% and eliminating design-to-dev handoff inconsistencies entirely. ▸ LegalTech Client: Built a multi-tenant LLM document analysis pipeline processing 10k+ legal documents per day using LangChain, Pinecone, and FastAPI; achieved 94% extraction accuracy validated against attorney review and reduced manual review time per case by 7 hours on average. ▸ Consumer Startup: Sole engineer and designer on a React Native (iOS + Android) consumer app — led discovery, UX research, wireframing, API design, and App Store submission; launched in 8 weeks to a 4.8-star rating with zero critical post-launch bugs. ▸ Media Client: Integrated Claude API + streaming UI into a B2B content platform, enabling real-time AI-assisted drafting; feature drove a 31% increase in session duration and became the top-cited reason for plan upgrades within 60 days.

  • Lead Full Stack Engineer · NovaTech Solutions2020 – 2022

    ▸ Led a cross-functional team of 5 engineers building a B2B SaaS platform (Next.js + Node.js + PostgreSQL) from 0 to 200+ enterprise accounts; owned architecture decisions, code review standards, sprint planning, and quarterly roadmap. ▸ Spearheaded a full microservices migration from a 4-year-old Rails monolith — decomposed into 11 independently deployable services using Docker + Kubernetes + GitHub Actions; reduced average deploy time from 45 minutes to under 4 minutes and eliminated cross-team deployment conflicts. ▸ Introduced AI-powered semantic search by embedding product data with OpenAI Ada-002 and querying via Elasticsearch k-NN; boosted search-to-conversion rate by 37% and cut zero-results search queries from 22% to 4%. ▸ Established a company-wide Figma design system with tokens, responsive grids, and 80+ components; standardized the Figma-to-production handoff process and reduced designer-developer revision cycles by 50%. ▸ Implemented end-to-end observability with Datadog APM, custom dashboards, and PagerDuty alerting; reduced mean time to resolution (MTTR) for production incidents from 47 minutes to 11 minutes. ▸ Mentored 3 junior engineers through structured 1:1s, pair programming sessions, and PR coaching; all 3 were promoted within 14 months and two became tech leads on separate product verticals.

  • Full Stack Developer & UX Lead · Pixel Forge Agency2018 – 2020

    ▸ Delivered 20+ client projects end-to-end across e-commerce, media, and healthcare verticals; owned technical scoping, sprint execution, and client demos for every engagement — maintaining a 96% on-time delivery rate with zero scope-driven overruns. ▸ Ran end-to-end UX research for 8 product redesigns: facilitated user interviews, synthesized findings into journey maps and pain-point matrices, and delivered iterative prototypes in Figma; average post-launch CSAT improvement was 28 points with one healthcare client reaching a 4.9/5 satisfaction score. ▸ Built a headless, CMS-driven marketing platform for a Fortune 500 retail client using Next.js + Contentful + Stripe — supporting 12 locales, campaign scheduling, and a custom A/B testing framework; contributed to a 19% lift in campaign landing page conversion rate. ▸ Diagnosed and resolved chronic performance issues across 10+ legacy client sites — implemented code-splitting, lazy loading, CloudFront CDN, and next-gen image pipelines; average page load time dropped 65% and Core Web Vitals scores moved from “Poor” to “Good” across the board. ▸ Introduced component-driven development with React + Storybook as agency-wide standard, reducing per-project UI build time by 35% and making design QA self-serve for non-technical project managers.

  • Frontend Developer · Brightline Digital2015 – 2018

    ▸ Developed and launched 30+ production web apps for clients spanning retail, finance, and healthcare — primary stack was React and Angular; championed and led company-wide TypeScript migration, eliminating an entire class of runtime type errors and reducing QA bug reports by 28%. ▸ Translated detailed Sketch and Figma mockups into pixel-perfect, fully responsive, WCAG 2.1 AA-compliant interfaces; established an internal accessibility checklist adopted as standard practice across all client engagements. ▸ Integrated 15+ third-party APIs in production (Stripe, Twilio, Mapbox, Google Maps, Auth0, Algolia, Intercom) — wrote reusable SDK wrapper modules that cut per-integration dev time from 3 days to under 4 hours on repeat use. ▸ Achieved and maintained 98%+ Lighthouse performance scores across all client projects by enforcing image optimization, font subsetting, tree-shaking, and bundle analysis as part of every pre-launch checklist. ▸ Authored internal frontend best-practices guide (300+ pages, component patterns, testing conventions, CI setup) adopted as the onboarding reference for all new hires for 3+ years after writing it.

Education

  • University of Texas — AustinB.S. Computer Science, Computer Science

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