Vetted Unit Testing Professionals

“Frontend/full-stack engineer (~5 years) who led large-scale React + TypeScript products including a Shutterstock-like media platform with private, invite-based content and SSO-style auth redirection. Strong in performance for media-heavy experiences (thumbnails, CDN, caching, chunking) and in quality systems (Vitest, E2E, CI gates, QA/staging). Also built a complex Figma/PowerPoint-like editor with custom state management and undo/redo history tracking.”

“Backend engineer who built and evolved ConGreG8 end-to-end: a stateless Node/Express REST API on MongoDB for fast, location-based church discovery. Demonstrates strong performance and operability discipline (instrumentation, p95 latency, slow-query analysis) with a reported ~30% response-time improvement, plus security depth via JWT/OAuth and Supabase-style row-level security. Experienced in safe refactors with contract preservation, dual-read validation, and incremental rollouts.”

“Frontend engineer who has led end-to-end architecture for enterprise B2B SaaS (order management/invoicing/reporting) across web (React/Next.js/TypeScript) and mobile (React Native/Expo), with strong emphasis on quality, performance, and accessibility. Notable for modernizing a legacy React/Redux codebase with quantified improvements (15% faster loads, 65% fewer bugs, test coverage 40%→75%) and for implementing production-safe rollout practices (dogfooding, canary releases, kill switch).”

“Full-stack developer who built and shipped Asrify.com (a combined Jira + Hubstaff-style app) end-to-end using PostgreSQL/Laravel/Vue/Docker with unit tests and Cypress. Also worked on an Australian school management platform (Qobox) with multiple portals (staff/students/guardians), focusing on scalability via query optimization, indexing, and Redis caching; strong in React but not in Java/SpringBoot.”

“Robotics software/embedded engineer who helped build an end-to-end perception sensor platform in a two-person team, owning PCB design, ROS architecture (sensor/processing/diagnostic nodes), and documentation. Experienced integrating heterogeneous sensors over CAN with Arduino and optimizing real-time performance bottlenecks (camera and high-frequency streams) using compression, grayscale pipelines, and reduced inference frequency; also containerized the system with Docker.”

“Frontend-focused builder with multiple end-to-end academic product builds (event manager, niche social media app, airline booking site, AI-based obituary generator). Experienced in React/Next.js with an emphasis on scalable component architecture, pragmatic state management/performance, and strong collaboration with design via Figma; has shipped complex user flows like real-time chat, booking/seat selection, auth, and media upload under tight timelines.”

“Frontend engineer who led end-to-end development of a role-based React + TypeScript dashboard (hotel booking management) with deep linking and complex workflows. Emphasizes scalable architecture, strict quality gates (TypeScript strict mode, ESLint, testing, code review), and rigorous state separation (server/URL/local) to prevent stale or mixed-up UI. Proven at performance-focused refactors and fast-paced feature rollouts with tight cross-functional collaboration.”

“Frontend engineer with experience leading a Flutter cross-platform mobile app end-to-end, emphasizing layered architecture (UI vs service/business logic) and performance tuning (off-main-thread image processing via isolates). Also builds React + TypeScript dashboards with reusable components (TailwindCSS) and scalable state management (Context + reducers), and has handled urgent production issues with QA-verified rollouts.”

“AI/LLM engineer who has owned end-to-end production delivery of multi-agent RAG systems on Azure (React + FastAPI + data pipelines + Terraform), including rigorous evaluation/monitoring and reliability guardrails. Shipped an AI-driven observability root-cause analysis assistant that reduced MTTR ~30%, cut alert noise ~20%, and reached ~70% adoption in the first month; also built a clinical document Q&A system with citations and compliance-oriented controls.”