Vetted Performance Optimization Professionals

Gary Chang

Screened

Senior Full-Stack Software Engineer specializing in AI-first cloud-native systems

Los Angeles, CA9y exp

“End-to-end engineer who has productionized AI automation and RAG capabilities, building full-stack systems (React/Node/Redis/Postgres + vector DB) with evaluation-driven quality gates and monitoring. Reported ~60% reduction in manual ops time and major turnaround improvements, and has experience modernizing legacy systems safely via feature flags and parallel runs while working across product, data, and ops teams (System1).”

Erick Folckemer

Screened

Senior Gameplay Systems Programmer specializing in AAA game systems and networking

Raleigh, NC8y exp

“Gameplay engineer with shipped experience (Just Cause 4) and strong systems ownership in C++/Unreal Engine 5, including a loot spawning/loot table pipeline optimized through profiling-driven memory copy elimination and validated via custom simulation tools. Also built a server-authoritative fast travel system in a proprietary engine, handling multi-player/vehicle spawn coordination with client-side collision checks and latency testing across NYC and Stockholm.”

Aaron Bahr

Screened

Senior Software Engineer specializing in game engine and systems programming

Madison, WI23y exp

“Unity/C# developer who built highly flexible gameplay systems (a data-driven scrapping/recipe system and an interruptible coroutine-based AI system) for the game Z-Poc, with a strong focus on architecture tradeoffs and performance. Shipped multiple iOS/Android educational games and improved a children’s book app experience by implementing lazy loading/background image loading to reduce initial load time; also built custom JSON-based networking for a turn-based business sim (JATitan).”

“Software developer with hands-on experience refactoring a legacy .NET CMS into a newer API-driven application (ASP.NET MVC, JavaScript/HTML), including dynamic asset migration and resolving team merge conflicts in Bitbucket. Built automated tests with PyTest and used Postman for API validation, and leveraged Splunk for production issue detection; also worked on an end-to-end ticketing/workflow management project with prioritization and verification steps.”

“Built and shipped production LLM agents including an AI patient appointment assistant for Kyron Medical that automated specialist matching and end-to-end booking with email/SMS confirmations and a voice mode. Strong focus on production reliability (double-booking prevention with DB constraints and pre-write checks), deterministic multi-step orchestration with LangGraph, and rigorous monitoring/evaluation using LangSmith trace replay for prompt regression testing.”

Ashish Kapoor

Screened

Director of Digital Solutions & Principal Architect specializing in composable DXP and AI transformation

Greater Philadelphia Area, USA20y exp

“Enterprise digital transformation technologist with SaaS and AI platform experience who positions themselves as a technical bridge for VC/startup contexts—focused on technical due diligence (scalability, technical debt, AI readiness) and helping portfolio companies build enterprise-grade, scalable platforms with AI-driven product development approaches.”

Ellen Lo

Screened

Mid-level Game Developer specializing in XR, AR, and multiplayer Unity experiences

Remote5y exp

“Gameplay programmer with hands-on experience shipping VR systems in Unity/C#, including a quest-based onboarding flow for the VR MOBA Crystal Conquest that became a core part of the player experience as the game expanded. Brings a mix of gameplay architecture, Photon Fusion multiplayer implementation, Quest optimization, and practical AI-assisted development workflows using Claude Code and Unity MCP.”

“Unity/C# gameplay engineer with strong multiplayer systems experience, including shipping a DarkRift-based server-authoritative architecture with prediction/reconciliation and measurable gains: frame time improved from ~30ms to 18ms and packet sizes dropped by roughly 40%. Also brings practical thinking around AI-assisted content tooling, using async service layers, JSON pipelines, and validation rules to support designers without disrupting production workflows.”

Will Long

Screened

Principal Gameplay Programmer specializing in game systems and cross-platform architecture

Remote, US16y exp

“Principal-level game engineer with deep Unity/C# systems experience who rebuilt a core procedural reels framework for long-term extensibility and partner-team adoption. Also stands out for early, hands-on AI/LLM gameplay work in a multiplayer text game, including NPC memory/personality systems, custom model deployment, and cost-scaled inference infrastructure, plus shipped VR RTS experience across Quest/Rift-era and mobile VR platforms.”

“Gameplay engineer with hands-on ownership of a computer-vision body-tracking system that powered Dance Break, a full-body dance game shipped across Windows, Mac, iOS, and Android and used at large live events like EDC Las Vegas and Alibaba CoCreate. Particularly strong in performance-sensitive Unity systems, cross-platform optimization, and multiplayer architecture decisions, with experience spanning mobile, VR, and deterministic networking.”

“Full-stack JavaScript engineer (React/Node/Vue) who has operated like a maintainer by owning an internal component library with Storybook-style examples, documentation, and non-breaking versioning. Demonstrated strong performance engineering on a source code review service—profiling bottlenecks, fixing N+1 queries, adding caching, and trimming payloads to cut latency (e.g., ~100ms to <50ms) while rolling out incremental, test-backed improvements.”

“Full-stack engineer with hands-on experience building real-time operational products across banking, insurance, and startup e-commerce environments. They’ve owned features end-to-end—from React/TypeScript dashboards and Redux performance tuning to Spring Boot, Kafka, AWS Lambda, and production monitoring—and have also shipped 0→1 capabilities where business impact was immediate, such as reducing overselling through inventory visibility.”

“Built a prediction market analytics website from scratch to analyze volume and correlations in decentralized markets, drawing on a sports and finance background. Shows strong early-stage product instincts, backend ownership, and a pragmatic approach to scalability, security, and AI-assisted data workflows.”

“Built a production-grade LLM document processing and workflow orchestration platform at CBRE for internal operations teams, handling highly variable long-form documents with a reusable architecture involving 50+ coordinated LLM calls per request. Stands out for treating agentic systems like distributed backend infrastructure, with strong emphasis on evaluation, observability, reliability, and vendor-agnostic orchestration across Bedrock, Vertex AI, and OpenAI.”

Amit Verma

Screened

Mid-level Java Full-Stack Engineer specializing in healthcare and enterprise microservices

Birmingham, AL6y exp

“Developer who actively integrates AI tools like Copilot, ChatGPT, and Cursor into day-to-day coding, testing, debugging, and framework learning to improve delivery speed. They also organize multi-agent workflows across code generation, review, testing, and documentation while retaining final ownership of quality and architecture decisions.”

“Full-stack engineer with hands-on experience spanning React/TypeScript frontend architecture, .NET/Entity Framework backend services, and database optimization. Has owned end-to-end features like payment processing flows and also helped ship a 0→1 AI developer productivity capability, showing a mix of product sense, startup speed, and practical performance engineering.”

“Unity gameplay engineer with 10 years in game development who has shipped dozens of mobile titles and built high-impact shared systems, including a custom touch framework still used across 100+ ABC Mouse mini games. At Battle Creek Games, they paired strong Unity engineering with AI-assisted workflow automation, cutting a 4-day car setup process to 30 minutes and delivering a partnership update that drove over $1M in a single weekend.”

“Engineering leader focused on developer platforms and identity: led a 5-person team building a multi-tenant IAM framework extending Duende IdentityServer, including governance, API standards, and multi-language SDKs. Drove major API architecture improvements by introducing GraphQL alongside REST, cutting client calls from 4 to 1 and reducing payload size by 60% within 6 months, with strong emphasis on stability (semver, E2E tests, feature flags, blue-green deploys).”

Nehemiah Dias

Screened

Senior Frontend Engineer specializing in design systems and real-time SaaS platforms

San Francisco, CA11y exp

“Full-stack product builder who has repeatedly taken end-to-end ownership in startup environments, including building PromoFlow solo and architecting the entire software backbone for Hard Drive. Particularly strong at turning ambiguous product needs into scalable systems, from real-time Firebase apps to shared component libraries and redesigned Postgres architectures, while also bridging non-technical founders, design, and engineering.”