Vetted REST APIs Professionals

“Frontend engineer with end-to-end ownership of React/Next.js products, focused on scalable component-based architecture and quality via CI/CD, automated testing, and disciplined PR reviews. Built React + TypeScript dashboards with role-based views using Zustand, and improved existing codebases by decoupling components and boosting performance through code splitting, lazy loading, and standardized shared components.”

“Built and shipped a production "Campaign AI" multi-agent system (LangGraph) that personalizes B2B outbound emails at scale using Apollo.io prospect data, clustering-based segmentation, and 21 persona variants. Notably uncovered that high click rates were largely email security scanners and created a validated bot-detection/scoring pipeline (timestamps/IP/user-agent/click patterns), bringing reported engagement down from ~40% to a trusted 5–8% that aligned with real conversions.”

“Frontend engineer with experience building enterprise ERP/CRM dashboards in React + TypeScript, including cron-driven data updates and differentiated state flows. Emphasizes CI/CD pipeline setup, performance optimization (Core Web Vitals, React Profiler), and disciplined delivery practices (risk-based QA, phased rollouts); also has Figma-to-responsive implementation experience.”

“Full-stack Java/Spring Boot + SPA (Angular/React) engineer who has delivered products end-to-end, including a financial management portal for SMBs and a high-traffic golf/hotel reservation platform. Notably migrated a manually deployed system to AWS (EC2/RDS/S3/CloudFront) with Jenkins CI/CD and has hands-on React performance optimization experience for LG webOS TV apps.”

“Frontend engineer who helped build a desktop-as-a-service product from scratch and has delivered complex React + TypeScript workflows (including multi-stage approvals). Notable for performance-focused refactoring (removing unnecessary memoization), building reusable component patterns, and leading a major shift from hard-coded forms to a configurable form-builder with strong dev/QA collaboration and heavy scenario testing.”

“Frontend engineer who led the Cariveco frontend end-to-end, establishing a scalable React/TypeScript architecture with a design system, CI-driven quality gates, and strong performance practices (Lighthouse, code-splitting, caching). Experienced building complex dashboards with role-based views and real-time data using Redux + RTK Query, and shipping major features quickly with automated testing, feature flags, and Sentry monitoring.”

“Full-stack developer who has led end-to-end delivery of web applications using React/TypeScript with Node/Express and SQL databases. Notably modernized a legacy Java applet ERP system by redesigning it in React, iterating based on user feedback to balance new UX improvements with existing user workflows.”

“Early engineering hire at The Coaching Market (B2B2C e-learning startup) who owned re-engineering core REST APIs (FastAPI) and shipping an enhanced Next.js UI, plus automating most deployments via CircleCI/Vercel. Strong in data-driven iteration (surveys/Jira/Slack + Google Analytics, A/B tests) and reliability/performance improvements with measurable impact (30% less downtime, 40% faster releases, 25% faster loads).”

“Frontend-focused engineer who has led complex React/TypeScript analytics dashboards end-to-end, including a Next.js internal customer dashboard scaled to thousands of daily users. Emphasizes scalable architecture (feature-based structure, typed models, React Query/Zustand), strong quality gates (Jest/RTL, linting, monitoring with Sentry/LogRocket), and performance optimization, with tight collaboration with design/product via Figma and rapid prototyping.”

“Frontend engineer who led an employee management system end-to-end, focusing on scalable architecture and performance (caching, route/component-level code splitting, lazy loading, dynamic imports). Experienced building React + TypeScript dashboards with Tailwind CSS and Zustand, including centralized global UI state for modals/sidebars/preferences and feature-flagged rollouts with rapid QA/iteration.”

“Full-stack engineer who built a lost-and-found pet management platform (React + Node/Express + SQL) with a focus on scalability (stateless JWT auth, modular REST APIs, cloud-based image handling) and performance (Artillery load testing, Chrome DevTools, query/index tuning). Also demonstrates systems-thinking around low-latency real-time voice pipelines integrating WebSockets, ASR, LLMs, and audio output, and has experience translating founder input into shippable product via rapid prototyping.”

“Full-stack developer with ~2 years of Java experience who built an end-to-end workforce scheduling/rostering platform for a multi-branch coffee chain (200+ employees), including compliance and scheduling-rule enforcement. Also optimized a high-volume financial/accounting web app (transactions, payroll, invoices, HR) by improving backend logic and PostgreSQL performance with indexing, batching, and optimized joins.”

“Backend/ML engineer with deep fintech and marketplace experience: built a real-time financial analytics + algorithmic trading platform (Python/Postgres/Kafka/Redis) and drove major DB performance wins (10x faster analytics; sub-10ms response consistency). Also shipped an end-to-end ML recruitment matching platform (scraping/ETL/modeling/Django deployment) with reported 92% matching accuracy, and emphasizes production reliability via monitoring, blue-green deploys, and robust workflow error handling.”