Freelance Software Architects in CentennialFreelance Software Architects in Centennial
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Tami Mitchell's avatar
Tami Mitchell
Denver, USA
Full stack developer with 13 years of experience.
New to Contra
Full stack developer with 13 years of experience.
Cover image for Full-stack Rails development for an
Full-stack Rails development for an RV camping discovery platform serving 750,000+ members across 39,000+ campgrounds with 170,000+ user reviews. Enhanced Mapbox-based campground discovery with advanced filtering by amenity, price, and accessibility. Implemented cross-brand OAuth supporting single sign-on across Roadpass Digital's portfolio of travel products. Optimized PostgreSQL queries and refactored legacy code, reducing page load times by ~30% on high-traffic search pages. Built Segment analytics tracking user behavior across discovery and booking flows. Standardized React and Stimulus components into a shared library with RSpec test coverage across 3 Rails applications.
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Cover image for Enterprise marketing site migration for
Enterprise marketing site migration for a food safety SaaS company. Two full builds: initial Astro + DatoCMS implementation, then a ground-up Next.js 14 migration with a modular block system so marketing could independently build, preview, and publish landing pages without developer involvement. Built a custom TypeScript component library with GraphQL type safety, reducing new page build time from days to hours. Migrated 246 blog posts and 32 landing pages with zero data loss, maintaining SEO rankings through redirect mapping and metadata preservation. Drove Lighthouse scores from the high 80s to 98-99. Documentation doubled as developer onboarding and AI context, so SafetyChain's own developers could ship features directly from the docs.
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Cover image for Zero-JavaScript Astro one-page site with
Zero-JavaScript Astro one-page site with Lighthouse 98+, WCAG 2.1 AA compliance, and AI discovery optimization. Built the exact kind of site I want to be hired to build. One-page portfolio site for my own creative studio, built to demonstrate the performance and accessibility work I offer clients. Astro 5 static site with zero JavaScript shipped to the browser. CSS Custom Properties for theming, self-hosted WOFF2 fonts (no third-party requests), deployed on Cloudflare Pages. Lighthouse scores consistently 98-100 across performance, accessibility, best practices, and SEO. WCAG 2.1 AA compliant with tested color contrast, keyboard navigation, and semantic HTML throughout. AI discovery optimized with structured content designed for LLM retrieval. ::Live at elementalsugar.com (http://elementalsugar.com).
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Cover image for Multi-year technical partnership (2019-present) for
Multi-year technical partnership (2019-present) for a women-only off-road navigation rally across Nevada and California. Work has spanned WordPress, custom plugins, a real-time GPS tracking dashboard (React + Mapbox, 65+ vehicles with satellite failover), scoring system modernization, and live broadcast graphics. Most recent: browser-based live overlay system for OBS/vMix. Built a PHP API layer on top of the existing scoring database without touching the scoring logic, then created JavaScript overlays that production controls in real-time. Standings, challenge results, sponsor graphics, all running as transparent overlays during the 2025 rally. Also built a team bio pipeline (JotForm to WordPress, 130+ profiles/season) and Arduino-based vehicle telemetry hardware for areas with zero cell coverage.
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Software Architect(2)
Mateo Vegas's avatar
Mateo Vegas
Denver, USA
Sr. Frontend Engineer/Architect: React, Angular, TypeScript
Sr. Frontend Engineer/Architect: React, Angular, TypeScript
Cover image for CourtGrid MVP Video Conferencing App Development
CourtGrid MVP Video Conferencing App Development
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Cover image for Space Jam Starring LeBron James
Space Jam Starring LeBron James
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Cover image for Taco Bell Apply via talentReef
Taco Bell Apply via talentReef
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36
Cover image for Vail Resorts Epic Mountain Bike Storefront
Vail Resorts Epic Mountain Bike Storefront
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9
Software Architect(1)
Ryan Bush's avatar
Ryan Bush
Denver, USA
Expert iOS Developer | Swift, Firebase, Objective-C
Expert iOS Developer | Swift, Firebase, Objective-C
Cover image for KRON
KRON
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Cover image for FuboTV
FuboTV
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Cover image for Co-Keeper
Co-Keeper
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Cover image for Mystro
Mystro
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9
Software Architect(7)
Cory Schmaltz's avatar
Cory Schmaltz
Denver, USA
Full Stack Engineer & AI System Architect & Network Engineer
New to Contra
Full Stack Engineer & AI System Architect & Network Engineer
Cover image for Obsidian Network Architect
Obsidian Network Architect
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Cover image for NLP pipeline for Federal Document Processing
NLP pipeline for Federal Document Processing
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Cover image for Logistics System for US Army
Logistics System for US Army
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Cover image for AI-Powered Automatic Marketing System
AI-Powered Automatic Marketing System
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Software Architect(1)
Chanida Clarkston's avatar
Chanida Clarkston
Centennial, USA
Specializing in Salesforce development and API integrations
Specializing in Salesforce development and API integrations
Cover image for Automating Lead Status Updates in Salesforce High Velocity Sales
Automating Lead Status Updates in Salesforce High Velocity Sales
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Cover image for Various integrations with multiple financial APIs and Salesforce
Various integrations with multiple financial APIs and Salesforce
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Cover image for Replace Paid Subscription with Native Salesforce Functionalities
Replace Paid Subscription with Native Salesforce Functionalities
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Software Architect(1)