About Skills Work Contact
Open to new opportunities

JAYR
WILLIAMS

Senior Full-Stack Software Engineer | SaaS & Data Platforms | APIs | Automation | React | PHP | JavaScript

Full-stack software engineer and product builder based in Chesapeake, VA, architecting scalable SaaS platforms, real-time analytics systems, and conversion-focused digital experiences that bridge engineering, data, and user experience.

15+
Years Experience
10+
Apps & Platforms Shipped
Software Engineering SaaS & Data Platforms API Development Automation PHP · MySQL · JavaScript · React Product Strategy Software Engineering SaaS & Data Platforms API Development Automation PHP · MySQL · JavaScript · React Product Strategy
01

ABOUT

Background & experience in engineering and product

Open to full-time opportunities

I'm a full-stack software engineer and product builder based in Chesapeake, VA, currently completing a BS in Computer Science (Software Engineering) at SNHU.

My experience spans the full software development lifecycle, from architecting responsive front-end interfaces to building scalable back-end systems, REST APIs, authentication workflows, analytics integrations, and production-ready SaaS applications.

I've designed and developed a real-time financial analytics platform focused on market structure intelligence, dealer positioning analytics, volatility forecasting, and high-frequency data visualization tools. The platform includes subscription infrastructure, role-based access control, forecasting engines, heatmaps, live data polling systems, and interactive dashboard experiences optimized for active users.

My technical stack includes PHP, JavaScript, React, Python, MySQL, Tailwind CSS, REST APIs, analytics integrations, and server-side infrastructure management. I focus heavily on system architecture, API design, automation pipelines, performance optimization, and building software that solves real operational and business problems, not just interfaces.

Previously, I contributed to web development and SEO initiatives at Mancon Inc., led digital experiences and brand development at Watson Apparel, and strengthened infrastructure and troubleshooting expertise at InMotion Hosting through hands-on server, migration, and hosting support work.

Beyond client work, I enjoy building SaaS products, experimenting with product strategy and automation systems, producing electronic instrumental music, and continuously expanding my software engineering skill set.

02

SKILLS

Core competencies across engineering and product

Software Engineering

Full-stack application development, SaaS architecture, system design, REST APIs, authentication systems, PHP, JavaScript, React, Python, MySQL, Git, Node.js

APIs & Automation

Third-party API integrations, webhook & cron-based automation pipelines, data processing, analytics integrations

UI / UX Design

Figma, Sketch, Adobe XD, responsive systems, interaction design, prototyping

Product & Growth

Product strategy, SEO, SEM, content strategy, email marketing, analytics-driven decision making

03

WORK

Production applications, SaaS platforms, and client systems

001
Fintech / Analytics
Options Analytics Dashboard

A real-time options analytics SaaS for retail traders: dealer positioning, gamma exposure, and volatility structure visualized through live data polling, interactive charting, and a tiered subscription model with role-based access.

PHPMySQLJavaScriptChart.jsPlotly.jsReal-Time Data
002
Home Services Marketplace
Book Work Now

A home services marketplace connecting homeowners with local contractors: lead capture, scheduling, quote/estimate generation, and automated lifecycle messaging (lead nudges, stale-lead alerts, review requests, recurring-service reminders) built on cron-driven automation.

PHPMySQLJavaScriptCron AutomationPHPMailerTailwind CSS
003
Sports Media Publication
She Owns the Court

A WNBA media publication with live-score API integrations, automated cron-driven content pipelines, SEO-optimized structured data and a Google News sitemap, auto-posting to X on final scores, affiliate monetization, and a double opt-in newsletter system.

PHP MonolithESPN / SportsDataIO APICron PipelinesSchema.org / SEOX API
004
Real Estate
Real Estate CRM

A connected CRM and transaction platform for real estate brokerages: prospecting leads, contacts, CMA reports, listings, and closed deals are linked end-to-end so data flows through the pipeline instead of being re-entered at each stage. Includes an AI-assisted listing marketing kit (descriptions, social posts, email announcements), a rule-based lead-scoring engine, a live commission calculator, and a brokerage-wide activity feed powering a daily "next best actions" briefing.

PHPMySQLJavaScriptClaude APIdompdfCSRF / RBAC
005
API Platform
API Management & Developer Platform

A full-stack developer platform where users register, generate scoped API keys, and call REST endpoints through a custom-built gateway: JWT-based sessions, SHA-256-hashed key validation, MySQL-backed rate limiting, and structured request logging, all surfaced in a live React analytics dashboard with request volume, error rates, and latency percentiles.

ReactVitePHPMySQLJWTChart.jsGitHub Actions
006
Developer Analytics Platform
TrackKit

A multi-tenant developer analytics platform combining a Stripe-like developer experience with Google Analytics-style insights: a lightweight JavaScript SDK for tracking events, page views, and users, a REST ingestion API, and a dashboard with an event explorer, charts, and user analytics.

PHPMySQLJavaScript SDKREST APIChart.jsTailwind CSS
04

CONTACT

Let's build something great together

Interested in
working together?

Whether it's a full-time role, a contract engagement, or a project you'd like a second opinion on, I'd love to hear from you. I typically respond within one business day.