Jayraj Sharma

About

Versatile freelance engineer and designer with 10 years of experience delivering end-to-end digital products for startups, agencies, and enterprise clients. I bridge strategy, design, and engineering — building polished UIs, scalable back-end systems, and AI-powered features that ship on time and drive measurable impact. Available for contract, project-based, and retainer engagements.

Experience

• Lead Full Stack Engineer + AI Architect (Contract) · FinFlow (Fintech Startup)12-01-2023 – 02-01-2026

  ▸ Architected a production-grade AI cash-flow forecasting engine using GPT-4o + RAG over 3 years of transaction history; eliminated 60% of manual FP&A effort and surfaced anomalies 5x faster than the legacy spreadsheet workflow. ▸ Owned the entire product lifecycle solo — from Figma wireframes and design-system tokens through Next.js 14 front-end, FastAPI micro-services, PostgreSQL schemas, Redis caching layers, and zero-downtime AWS ECS deployment. ▸ Designed a fully accessible, token-based design system in Figma and built it in React with Storybook documentation; adopted by 3 product lines and 7 engineers within the first month of release, cutting UI inconsistencies by 80%. ▸ Delivered a complex 14-week build 2 weeks early with zero critical post-launch bugs, earning a contract renewal and a direct referral to two additional clients. Stack: Next.js · FastAPI · OpenAI · Pinecone · PostgreSQL · AWS · Figma

• UI/UX Designer + Frontend Engineer (Contract) · Meridian Health12-01-2021 – 12-01-2022

  ▸ Spearheaded a full UX overhaul of a patient-portal SaaS serving 80,000+ users — boosted task-completion rate by 34%, cut average session time-on-task by 28%, and reduced inbound support tickets by 22% within 90 days of launch. ▸ Ran 20+ moderated user interviews, synthesized findings into affinity maps and journey diagrams, and produced three iterative rounds of high-fidelity Figma prototypes — each validated through unmoderated usability testing before a single line of code was written. ▸ Translated approved designs into a fully responsive, component-driven React front-end integrated with a Django REST API; enforced WCAG 2.2 AA compliance with automated axe-core audits in CI, achieving a 100% accessibility pass rate at launch. Stack: Figma · React · TypeScript · Django · Tailwind CSS

• AI Integration Specialist (Contract) · RetailOS (E-commerce SaaS)01-01-2022 – 03-01-2022

  ▸ Engineered an AI product-description generator using OpenAI GPT-3.5 + LangChain with structured output validation; processed 10,000+ SKUs on day one, saving the client $40k/year in copywriting costs and reducing time-to-publish per product from 45 minutes to under 90 seconds. ▸ Replaced a keyword-only search bar with a full semantic search experience powered by Weaviate embeddings and a conversational query UI — click-through rate on search results improved by 41% in the first 30 days. Stack: OpenAI GPT-3.5 · LangChain · Weaviate · Next.js · Node.js

• Senior Full Stack Developer (Contract) · Orbit Agency2020 – 2022

  ▸ Sole contributor on 12+ concurrent client engagements spanning SaaS dashboards, marketing sites, e-commerce storefronts, and internal ops tools — consistently hitting deadlines and maintaining a 5-star client rating across all projects. ▸ Ran full discovery-to-launch cycles independently: stakeholder interviews, information architecture, low-fi wireframes, interactive Figma prototypes, front-end build, back-end APIs, and post-launch iteration — with no handoff gaps. ▸ Built a proprietary project scaffold and shared component library that cut estimated setup time per new engagement from 3 -- 1 of 2 -- days to 4 hours, enabling a 25% increase in throughput without adding contractors. Stack: React · Vue · Node.js · PostgreSQL · AWS · Figma

• Full Stack Engineer (Full-time → Contract) · BuildRight (PropTech)12-01-2018 – 12-01-2020

  ▸ Served as a core engineer on a permit-tracking platform scaling to 200+ municipalities and 50,000+ daily active users; designed and shipped a Mapbox-powered interactive map search, configurable reporting dashboards, and a suite of third-party REST API integrations with city data systems. ▸ Championed and executed a full front-end TypeScript migration across 60,000+ lines of JavaScript; established strict type coverage policies that reduced runtime exceptions by ~30% and cut QA cycle time by two days per sprint. ▸ Architected and led a 6-month phased migration from a Rails monolith to Node.js microservices on AWS EKS — delivered with zero downtime and a 40% reduction in average API response time. Stack: React · TypeScript · Node.js · PostgreSQL · AWS · Mapbox

• Junior Full Stack Developer (Full-time) · Clearwater Labs12-01-2015 – 12-01-2018

  ▸ Engineered interactive data-visualization dashboards using D3.js to surface KPIs for enterprise B2B clients; replaced static weekly Excel exports with live, filterable charts — reducing time-to-insight for account managers from days to seconds. ▸ Built and launched user-management flows (roles, permissions, audit logs, SSO) and an automated scheduled-report export system that handled 500+ report deliveries per day with 99.9% delivery reliability. ▸ Partnered directly with the design team to translate Sketch mocks into pixel-perfect, fully responsive UIs; established a front-end style guide that reduced design-to-dev handoff friction and became the team standard for the next 3 years. Stack: React · D3.js · Python/Flask · MySQL

Education

• University of HoustonB.S., Computer Science

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