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Nathan Hatfield's avatar
Nathan Hatfield
proConcord, USA
Principal Engineer & Software Architect | Digital Platforms
    5.0
    Rating
    7
    Followers
Principal Engineer & Software Architect | Digital Platforms
Cover image for Wellos — Healthcare SaaS Frontend
Wellos — Healthcare SaaS Frontend Architecture & Scalable Design Systems Wellos was an emerging healthcare SaaS platform developed within RVO Health. The platform was being expanded to bring capabilities from established wellness programs, including Real Appeal and Quit for Life, into a more flexible, unified product experience. These programs supported different healthcare needs, including weight management, coaching, activity tracking, and smoking cessation. The challenge was building an architecture that could support distinct customer journeys, integrations, and product branding while making it easier to add programs over time. I joined the initiative as a Staff Software Engineer, bringing more than a decade of experience designing and implementing shared frontend component systems at scale. Frontend Architecture & Design System I helped establish a reusable React and TypeScript component architecture built around React Aria, Class Variance Authority (CVA), and Tailwind CSS. React Aria provided accessible interaction primitives, while CVA enabled consistent component variants and states. We developed a shared Tailwind styling foundation that teams could adopt across the broader healthcare vertical, letting each team apply its own branding through separate theme configurations. This approach reduced duplicated implementation work while maintaining consistency across products and giving each program flexibility in its visual identity. Complex Workflows & Sensitive Data Boundaries Supporting multiple healthcare programs introduced important architectural considerations. Each program required its own customer journeys, application state, and backend API interactions. I advocated for explicit state-machine modeling to make workflow transitions and safeguards easier to reason about. When the team chose to keep its existing Redux architecture, I developed a Redux approach that established clearer boundaries between program-specific workflows. These safeguards helped reduce the risk of unintended cross-program interactions and sensitive healthcare information being sent to unrelated services. Backend authorization and data protection remained separate responsibilities. Hands-On Frontend Implementation Alongside the architectural work, I translated Figma designs into React and TypeScript interfaces and implemented much of the shared component system and frontend foundation. The goal was to give teams reusable building blocks for new features, customer journeys, and branded experiences without repeatedly rebuilding common UI functionality. Outcome & Impact I established key architectural patterns and delivered substantial frontend implementation supporting Wellos's planned expansion into additional healthcare programs. My involvement concluded during a company-wide reduction in force before the broader initiative was completed. The architectural foundation and implementation work I contributed were intended to support continued development and future product expansion. Technologies: React, TypeScript, React Aria UI Components, Class Variance Authority (CVA), Tailwind CSS, Redux, Figma Visual Assets: An actual Wellos homepage screenshot, accompanied by conceptual illustrations of the shared frontend architecture, workflow isolation, and reusable component system. The diagrams represent architectural concepts from my work, not original internal documentation.
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Cover image for Building a shared foundation for
Building a shared foundation for Healthline Media’s digital products Healthline Media operated multiple high-traffic digital health properties that had evolved with separate frontend implementations. As new products and experiences launched, that model created duplicated engineering work, inconsistent implementation patterns, and added maintenance overhead. As a Staff Software Engineer at RVO Health, I helped modernize that architecture around a shared React and TypeScript platform. The work focused on building a reusable engineering foundation that could support multiple products while letting individual experiences retain their own requirements and identity. From independent implementations to a shared platform The modernization brought frontend development into a Rush-managed monorepo and established common architecture, shared UI components, Storybook documentation, development tooling, and engineering standards. Rather than treating each new experience as an independent implementation, teams could build on an established foundation. Teams could develop shared functionality once and use it across products, while keeping product-specific features appropriately isolated. My contributions included frontend architecture, reusable component patterns, TypeScript adoption, technical decision-making, architectural documentation, development standards, and collaboration with engineering and product teams as the platform evolved. Architecture designed for reuse A major goal was to make reuse practical without creating unnecessary coupling between products. The platform provided common foundations for UI, application structure, tooling, testing, and development workflows while leaving room for individual product needs. This architecture also became strategically important when we developed Real Appeal RX, a new enrollment experience representing a significant business opportunity. Instead of creating another independent frontend and adding to the existing duplication, we extended the shared platform for the new product.  Engineering impact The work's value extended beyond a framework migration. It changed how the organization could deliver new frontend experiences. Teams gained a more consistent development model, reusable components and patterns, stronger documentation, and a foundation that could evolve across products. New work could begin from established architecture rather than repeatedly solving the same underlying engineering problems. The result was a frontend platform designed to make future product development faster, more consistent, and easier to maintain. About the visuals The live Healthline experience shown here reflects the current public site and may have evolved since my direct involvement. The architecture and transformation diagrams are portfolio representations of the engineering approach and platform modernization work I contributed to during my time at RVO Health; they are not internal company artifacts.
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Cover image for I’m designing and developing a
I’m designing and developing a custom direct-to-consumer e-commerce platform for a family farm bringing its premium farm-raised meat products online. The project is focused on translating the trust, quality, and personal connection of buying directly from a local producer into a polished digital shopping experience. The work spans UX and visual design, responsive frontend development, e-commerce architecture, product and collection experiences, and the customer journey from discovery through purchase. I’m building the platform around clear product discovery, strong brand storytelling, and a straightforward buying experience that can grow with the business. The project is currently in development, with the foundation designed to help the farm expand beyond its local customer base while preserving the authenticity and credibility that distinguish a family-run producer.
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Cover image for Real Appeal RX created an
Real Appeal RX created an opportunity to solve more than a single product launch. Rather than build another standalone enrollment experience, I led the architecture and development of a reusable platform designed to support multiple healthcare products. The work consolidated shared enrollment patterns into a React and TypeScript architecture while preserving the flexibility required by individual products. I partnered across engineering, product, design, and business teams to define the technical approach, establish reusable development patterns, and guide implementation. The resulting platform supported Real Appeal RX, a new enrollment experience tied to a significant business opportunity, while reducing duplicated engineering effort and building a stronger foundation for future enrollment products.
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Sana Azmeh's avatar
Sana Azmeh
Harrisburg, USA
Full-Stack Developer & Product Designer
    5.0
    Rating
    10
    Followers
Full-Stack Developer & Product Designer
Cover image for TYL Real Estate Investments | WordPress Website
TYL Real Estate Investments | WordPress Website
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13
Cover image for Leadership Reality Check | Web Application
Leadership Reality Check | Web Application
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19
Cover image for Acumen Home Inspection | WordPress Website
Acumen Home Inspection | WordPress Website
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9
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Mike Perkins's avatar
Mike Perkins
proKannapolis, USA
Turning messy business problems into working software.
    12
    Followers
LOVABLE_SOLUTION_PARTNER

Solution Partner

Turning messy business problems into working software.
Cover image for Jamie’s Crafty Touch | Ecommerce
Jamie’s Crafty Touch | Ecommerce Website Redesign A handmade business deserves a website with just as much personality. 🦋 For Jamie’s Crafty Touch, We’ve been redesigning the shopping experience while keeping her colorful, creative brand at the center. Built with Lovable and connected to Square, the site brings together product browsing, detailed product pages, and a mobile-friendly layout. We’re preparing for final checkout testing and ownership handover. Watch the video for a look at Jamie’s wreaths, custom apparel, and creations! Have a website or app that needs some attention? Bring us the messy part.
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Cover image for Designed and built a B2B
Designed and built a B2B intelligence platform that helps MSPs analyze their existing customer portfolios, identify new services opportunities, quantify potential revenue, prioritize opportunities and turn findings into actionable sales and delivery plans. The platform evaluates opportunities across AI and automation, data and AI governance, cybersecurity, integrations, custom software and modernization while exposing the evidence, assumptions and confidence behind its recommendations. Built for MSP executives and designed to support white-label delivery under the MSP's own brand.
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Cover image for MessyAPI is a production-ready developer
MessyAPI is a production-ready developer infrastructure platform I built to eliminate repetitive data utility work. It gives developers one API to clean, validate, match, transform, protect, and analyze messy data instead of rebuilding those capabilities for every application. I designed the platform around real production requirements, including API-key authentication, tenant isolation, usage metering, rate limiting, idempotency, asynchronous jobs, retries, webhooks, observability, and secure data handling. MessyAPI also includes JavaScript and Python SDKs, OpenAPI, MCP support, CLI tooling, RapidAPI integration, interactive testing, and composable workflows for chaining multiple data operations together. The goal was simple: turn common data infrastructure developers repeatedly build themselves into one reliable API.
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Cover image for MessyVault is a smart storage
MessyVault is a smart storage and asset management platform designed to give people a clearer picture of what they own, where it’s stored, and what it’s costing them. I designed and built the experience around visual inventory tracking, storage organization, access activity, item management, billing visibility, and reminders—all brought together in one simple dashboard. The goal was to turn an often messy, offline process into a practical digital system that makes stored belongings easier to track, manage, and understand.
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Lisa Mele's avatar
Lisa Mele
proCornelius, USA
Seasoned Marketing Executive that has done it all.
    10
    Followers
Seasoned Marketing Executive that has done it all.
Cover image for Marketing Strategy, Content, SEO, and AI Search Consulting
Hi Contra! 👋 I'm Lisa, a marketing strategist and writer. I spent 15+ years leading marketing in tech. Most recently that was at SoftwarePricing Partners, a consultancy that advises software and AI companies, where I built the brand and thought leadership program and grew inbound pipeline 70%. Before that, I was one of HubSpot's first 50 customers. That background shapes how I approach every client: clear strategy, real data, and an early read on where marketing is heading, especially AI search. Now I bring that to businesses of all kinds: brand and messaging, content, email, SEO, and making sure customers (and AI tools) can find you. And because I'm also a published feature writer, the words get done too. Open to new clients. Say hi!
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Cover image for This was a cover story
This was a cover story for Lux Lifestyle Magazine. I came up with content idea, the interviews, and did a full editorial on Churchill downs, Woodford Reserve, and the derby itself.
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Cover image for This is content designed for
This is content designed for thought leadership, branding, SEO, AIO
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73
Cover image for Content, design , and writing
Content, design , and writing both fully optimized for SEO, AIO, and positioning SPP as industry leader.
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84
Tyler Watson's avatar
Tyler Watson
Concord, USA
SEO & Web Design for Growing Businesses
New to Contra
SEO & Web Design for Growing Businesses
Cover image for VAHMRS Website
VAHMRS Website
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21
Cover image for Albatross Consulting Website
Albatross Consulting Website
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37
Cover image for Carlos Professional Paints Website
Carlos Professional Paints Website
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34
Cover image for Concord Pickleball Website
Concord Pickleball Website
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31
Lina Alfonso's avatar
Lina Alfonso
Statesville, USA
Passionate designer, love a challenge - ready to create!
Passionate designer, love a challenge - ready to create!
Cover image for Dance Studio Website Homepage
Dance Studio Website Homepage
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7
Cover image for Website Design for Personal Training Gym
Website Design for Personal Training Gym
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6
Cover image for UX Consultation for The Systems Depot
UX Consultation for The Systems Depot
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7
Cover image for Wave Design Firm
Wave Design Firm
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6