Vetted Performance Optimization Professionals

“Frontend-focused product engineer with strong React/TypeScript architecture depth who built a streaming AI chat demo at Cleanlab in just 2 weeks that became the centerpiece of every sales call. They combine real-time UX, API contract design, observability, and design-system ownership, and have also built high-density Kubernetes operational dashboards while stepping into product design when resources were limited.”

“Built internal product features at Sysco's Collab Cafe across React/TypeScript frontend and Spring Boot/PostgreSQL backend, including a full project invite flow and an early AI-style project matching capability. Stands out for owning features end-to-end, improving React dashboard performance with profiling and component refactoring, and making pragmatic 0→1 tradeoffs to ship quickly.”

“Frontend engineer with strong ownership of revenue-critical checkout experiences, including cart, payment, and confirmation flows used across four subscription programs. Stands out for combining architecture, performance optimization, and analytics-driven product thinking—improving load times by 20% and shipping Apple Pay and referral features tied to increased revenue.”

“Master’s CS candidate with backend internship experience modernizing live operational workflows at NatWest/NetWess, focusing on reliability improvements, safer CI/CD deployments, and incremental refactors using feature flags and rollback paths. Built FastAPI-based APIs with strong security patterns (JWT + 2FA/TOTP, centralized authorization, RLS) and demonstrated attention to edge cases like idempotency and data consistency in a Netflix-clone project.”

“Unity/VR developer and PhD researcher who served as lead developer on a clinical VR application (VheaRts) used by surgeons at Great Ormond Street Hospital, taking over a messy codebase and rebuilding its architecture, documentation, and extensibility. Also built research-focused Unity VR experiments (e.g., change blindness in a dynamic living room) with sophisticated logic to control participant attention while monitoring physiological cues.”

“Backend engineer who has delivered large, measurable performance wins (10x throughput, 67% latency reduction) by combining Flask microservices, Redis caching, and AWS autoscaling/observability. Has hands-on depth in SQLAlchemy/Postgres optimization and production scaling pitfalls (cache consistency, connection exhaustion), plus experience deploying real-time ML inference (XGBoost) on AWS Lambda and building secure multi-tenant Kubernetes isolation.”

“Backend engineer with experience at Roche and Jarsy focused on API and data-layer performance. Re-architected slow generalized endpoints into more efficient APIs (30% faster lookups) and led a schema refactor/migration with feature-flag rollout, dual writes, rollback scripts, and automated integrity checks; also addressed pipeline duplicate-entry issues via deduplication.”

“Operations and back-office scaling leader from Diversified Restaurant Group who helped design a 3–5 year strategy/structure/culture plan to support growth from ~$280M to $1B revenue. Experienced bringing core functions (finance, HR, payroll, risk) in-house and leading a major Workday HCM implementation, including securing C-suite buy-in for a ~$1M investment and running a collaborative RFP/workflow-mapping process.”

“LLM-focused customer-facing technical leader with experience productionizing LLM workflows in financial services (State Street), including guardrails, retrieval tuning, and reliability improvements. Also partners closely with sales and executives—at Payoneer helped drive enterprise-wide adoption for a $10M ARR global account through technical discovery, demos, and pilots.”

“Senior technology/executive leader with 30+ years building and scaling mission-critical platforms across blockchain, cloud, cybersecurity, and fintech, including leading 100+ person global teams and managing $100M P&Ls. Founded Pharus (2022) after driving Web2-to-Web3/DeFi/metaverse initiatives at SDK Co, using a first-principles, PoC-driven approach to deliver secure, compliance-aware transformations (GDPR/NYDFS) and multi-million-dollar optimizations, with a focus on quantum-resistant Web3 and ethical AI governance.”

“Backend/platform engineer with production ownership of high-volume transaction analytics and fraud monitoring services built in Java/Spring Boot. Has scaled data processing platforms (including healthcare datasets) and operated Kafka-based event pipelines with schema versioning, deduplication, and replay/backfill workflows, using strong observability via CloudWatch/Grafana and CI/CD with Jenkins.”

“Former President/CEO who led MyGov through a successful acquisition, now on sabbatical building ncognait LLC—an AI-enabled app studio with one product launched (Taistful) and another in private beta (AIDONIS). Focused on startup CTO/founding roles and highly opinionated about using agentic coding to dramatically compress product development cycles and compete with larger incumbents.”

“Software engineer with hands-on ownership of both fintech checkout improvements (saved payment methods/one-click checkout with tokenization and feature-flag rollouts) and production LLM/RAG systems for customer support. Demonstrates strong operational rigor via guardrails, evaluation loops integrated into CI/CD, and scalable data pipelines handling messy PDFs/CSVs/logs with reliability and observability.”

“Distributed-systems engineer applying robotics-style patterns to software: built "Vibecheck," a high-throughput real-time video + OS-telemetry fusion and analysis system (500+ MB/session) with strict latency constraints. Strong in containerization and CI/CD (Docker, GitHub Actions) and in designing fault-tolerant, event-driven architectures (Kafka/RabbitMQ), plus hands-on debugging of multi-agent coordination using blackboard + watchdog/circuit-breaker control patterns.”

“Unity/C# mobile game engineer based in Belgrade who has owned and shipped complex meta-systems (shop/battle pass/tournaments) and real-time PvP using Photon, with a strong focus on performance (profiling, memory/GC, draw calls) and live stability. Notably handled a China launch by abstracting regional SDKs behind DI-based interfaces and using Addressables for localized assets, keeping the global codebase clean while maintaining high performance.”

Shaun Ames

Screened

Senior Unreal Engine Game Developer specializing in multiplayer systems and VR

California, United States9y exp

“Gameplay/network systems developer with shipped experience at Narsun Studios and Volition, including end-to-end ownership of a custom multiplayer session system for a VR title built on Unreal Online Subsystem with dedicated servers on AWS GameLift and PlayFab backend. Strong in profiling-driven optimization, scalability/load testing, and data-driven progression/balance (GAS), with telemetry-led changes that improved retention by ~20%.”

Sahachel Flores

Screened

Mid-Level Backend Software Engineer specializing in enterprise systems and applied AI/ML

Mountain View, CA6y exp

“Support engineer with IBM DFSMS OAM experience who restored a production TS7770 environment during a TS7760→TS7700 migration by using logs, SLIP traps, and dump analysis to pinpoint an SMS configuration (SCDS) issue, then partnering with the customer to redo the migration successfully. Also built a personal agentic news selector system and emphasizes documentation improvements and customer education to prevent recurring incidents.”

Jhansi D

Screened

Senior Full-Stack Java Developer specializing in cloud-native microservices

Chicago, Illinois4y exp

“Full-stack engineer with experience building secure, cloud-native document/workflow platforms handling high-volume customer and medical data across microservices on Kubernetes. Demonstrated impact improving performance via event-driven AWS architectures (Lambda + DynamoDB Streams) and strengthening compliance/security for S3-stored documents using IAM and KMS. Has delivered end-to-end APIs and UIs using Java/Spring Boot with Angular/React, plus Docker and CI/CD.”

Preetham Reddy Konuganti

Screened

Junior Full-Stack Engineer specializing in AI applications and scalable web platforms

San Jose, CA2y exp

“Full-stack engineer with customer-facing delivery experience who built and deployed a multi-platform social media automation product (Next.js/Node/MongoDB) and optimized it using BullMQ/Redis background jobs, retries, and rate limiting for reliable posting at scale. Also delivered an AI-powered false-positive analysis service in a cybersecurity context, resolving production pipeline stalls via log-driven debugging, parallelization, caching, and LLM guardrails.”

Aditya Agrawal

Screened

Intern Software Engineer specializing in backend systems and data engineering

1y exp

“Backend/AI engineer who has built and shipped two products: Know Founder (Python/SQL/AWS) scaling to 2,000+ users in the first month, and Unifr (unifr.online), an AI search visibility engine that queries multiple LLMs and turns responses into structured brand insights. Strong in production reliability/performance (Redis caching, indexing, precomputation) and in designing agentic workflows with guardrails, validation, retries, and human escalation.”

Szymon Kościelniak

Screened

Senior Unity Developer specializing in mobile and VR/PC games

Warsaw, Poland7y exp

“Unity gameplay engineer from Moonactive who rewrote the gameplay engine for ZenMatch, maintaining two engines in parallel via a separation layer to improve robustness/scalability and make new content easier to ship. Also implemented multiplayer for a client prototype using the Onion networking framework and is familiar with Photon Fusion concepts.”

Mike Khorrami

Screened

Director-level Engineering Leader specializing in enterprise SaaS and cloud-native platforms

Woodland Hills, CA25y exp

“Engineering leader/player-coach who modernized a legacy C#/SQL Server system to Snowflake + Python on GCP, enabling ~30x scale and supporting hundreds of millions of transactions per day per customer. Strong in architecture tradeoffs (Snowflake vs Databricks), production reliability (New Relic, logging/alerting), and lightweight process improvements like a rigorous Definition of Done and structured PR reviews.”

“Founder of Business Online Strategic Solutions Digital Marketing, a 5-year bootstrapped digital marketing and web solutions startup serving small-to-mid-sized and enterprise clients. Focused on building scalable, performance-driven web experiences (web dev, UX/UI, CRO, marketing strategy) and is actively scaling capabilities in modern front-end development and AI-assisted workflows.”

Austin Patten

Screened

Senior Unity Engineer specializing in mobile games and interactive apps

Erie, CO13y exp

“Lead engineer at PeopleFun who owned a data-driven limited-time event system for Wordscapes Search, using Addressables and asset bundles to ship new live content without app updates. Their work was tied to improved retention and stronger player engagement, and they also bring pragmatic AI-assisted development practices plus early VR/Meta Quest prototyping experience.”