Senior software developer creating high-converting digital interfaces, real-time event architectures, and automated AI workflows engineered to move organizations forward.
North Carolina, USA • Remote Worldwide
Craft • Precision • High Performance
Engineering Status
AI Dispatch Orchestrator
Voice session audio streaming (24ms latency)
Deployed
42+
Production
Uptime
99.9%
SLA Target
P99 Latency
42ms
Edge Cache
Code Quality
A+
Type-Safe
✓ Edge API runtime hydrated (Cloudflare Workers)
✓ Postgres read replicas healthy (us-east-1)
✓ AI tool-calling sandbox verified with 0 memory leaks
Three interconnected core disciplines working together to convert complex business requirements into lean, resilient software.
Fluid, responsive interfaces engineered for lightning-quick interaction, accessible semantics, and strict Core Web Vitals performance.
Robust REST & RPC endpoints, relational database design with Row Level Security, edge microservices, and distributed queue systems.
Connecting LLMs to production infrastructure with deterministic tool-calling, vector search retrieval, and two-way automation triggers.
Real software architecture, real client impact. Here are key projects showcasing the problem, strategy, and verified production stack.
Full-duplex conversational voice agent and multi-channel SMS automation connecting inbound calls directly into synced sales pipelines.
Lead Systems Architect & Full-Stack
Businesses were losing 38% of inbound inquiries due to missed phone calls and delayed manual follow-up response times.
Engineered an event-driven orchestrator combining WebRTC audio streaming, Whisper transcription, custom LLM tool-calling, and live CRM webhooks.
Multi-tenant marketplace connecting commercial operators, dedicated dispatch yards, and independent carriers with live availability mapping.
Full-Stack Engineer
Fragmented scheduling workflows causing empty deadhead miles and over 12 hours of manual broker phone haggling per shipment.
Constructed a reactive geospatial search engine with transactional booking escrow, dynamic pricing tiers, and automated SMS dispatch alerts.
Embedding-based user intent classifier that analyzes visitor telemetry and dynamically shapes site copy to boost conversion velocity.
AI / ML Integration Lead
Marketing campaigns yielded high visitor traffic but broad drop-offs because static web copy failed to address discrete buyer personas.
Created an edge middleware evaluating browsing patterns against vector centroids to personalize value propositions in under 20ms.
An unstyled, accessible UI primitive library designed specifically for enterprise SaaS dashboards with keyboard-first ergonomics.
Creator & Maintainer
Legacy design frameworks suffered from CSS specificity collisions, bulky bundle sizes, and rigid non-accessible DOM hierarchies.
Shipped micro-bundle tree-shakable primitives with strict ARIA standards, composable headless hooks, and automated Lighthouse audit CI.
Ultra-minimalist direct-to-consumer storefront engine with instant edge prefetching, optimistic cart mutations, and localized currency checkout.
Frontend Architect
Slow storefront checkout flows led to an average cart abandonment rate exceeding 68% on mobile devices.
Implemented server-side stream caching with Cloudflare Workers KV, zero layout shifts, and instantaneous one-tap Apple Pay/Google Pay integration.
Synthetic probe orchestrator that runs end-to-end user journeys every 60 seconds and auto-heals degrading microservices via Kubernetes webhooks.
Infrastructure & Backend
Silently degraded third-party API dependencies were undetected by basic HTTP 200 ping monitors.
Authored a headless browser synthetic runner with real-time anomaly detection, incident timeline generation, and Slack/PagerDuty alerts.
I'm Alex Rivera, a Senior Full-Stack Developer with over eight years of experience shipping production software for fast-moving startups and enterprise teams. My focus is bridging the gap between beautiful, accessible frontends and robust, resilient backend infrastructure.
Too many engineering teams treat software as disconnected silos: a frontend that looks great but runs slow, a database that chokes on concurrent writes, or an AI prototype that never survives production traffic. I design connected architectures where state, data, and autonomous agents work as one cohesive organism.
Based in Charlotte, North Carolina, I collaborate with founders, product teams, and technical leaders across the US to transform ambitious roadmaps into deployed code.
8+ Years
Production Dev
40+ Apps
Shipped to Scale
100%
On-Time Delivery
How I build every project
End-to-end typing from database schemas (Prisma/Kysely/SQL) through server RPCs to client React components. Zero mystery nulls.
Sub-second hydration, optimistic client mutations, and distributed caching using modern Vite 7 and TanStack primitives.
Strict JSON schemas, defensive hallucination guards, rate-limiting queues, and transparent human-in-the-loop fallback hooks.
No opaque code. Every module includes behavior tests, README runbooks, and zero friction onboarding for incoming engineers.
Toggle the systems you require to preview an estimated timeline and architecture investment roadmap.
Select Capabilities Needed
Accessible UI, Tailwind v4 styling, Core Web Vitals optimization.
PostgreSQL, typed RPCs, RLS auth security, and automated migrations.
Function tool-calling, background queues, SMS/Voice telephony dispatch.
Automated schema markup, dynamic OpenGraph generation, sitemap routing.
CI/CD automated testing pipeline, error reporting, and multi-region edge caches.
Estimated Sprint Cycle
Based on standard modular sprints with bi-weekly staging deploys and daily async updates.
Included with engagement:
✓ Direct engineer-to-client communication
✓ Clean Git commit history & pull requests
✓ Full IP ownership & environment handoff
Whether you have an upcoming web platform, need AI automation integrated into your existing stack, or require a technical audit, let's talk.