Vetted JSON Professionals

Roman Naumov

Screened ReferencesStrong rec.

Senior Gameplay Engineer specializing in Unity/Unreal AR/VR experiences

Victoria, Canada20y exp

“Unity/C# engineer who owned an end-to-end real-time 3D product configurator at PictureThis3D, emphasizing modular data-driven architecture for performance and stability (including improved model download time and faster content updates). Also implemented on-device LLM/voice-command processing using small local models (e.g., Qwen 3.5 0.8B) and shipped Photon multiplayer systems with robust match-start/state handling.”

“Built and deployed an LLM-powered clinical decision support and risk monitoring platform for mental health at Valuai.io, emphasizing low-latency, evidence-grounded responses and crisis-safe behavior with clinician escalation. Strong production agent-orchestration background (LangChain/CrewAI) plus rigorous evaluation (clinician-in-the-loop + evaluator agent) and large-scale synthetic testing; also applied multi-agent workflows to document verification and fraud detection during an AI internship at Nixacom.”

“AI/back-end engineer at Canon who helped build and operate an internal production LLM platform that acts as a secure middle layer between users and models, defending against jailbreaks/prompt injection while enabling RAG, memory, and grounded responses over company data. Experienced with LangChain/LangGraph orchestration, vector DB retrieval, and reliability practices (testing, monitoring, adversarial prompts) to run high-throughput, low-latency AI workflows in production.”

Pranava Reddy Kothapally

Screened ReferencesStrong rec.

Junior Data Engineer specializing in Azure, CRM data pipelines, and marketing personalization

Hyderabad, India2y exp

“LLM/AI engineer who has deployed production RAG conversational analytics and Text-to-SQL systems over Snowflake and curated data marts, emphasizing enterprise-grade guardrails for accuracy, security, and cost. Notable for a structured approach to reducing hallucinations (curated metric/table registry, SQL validation, RBAC, and citation-backed responses) and for building resilient, observable multi-step agent workflows using LangChain/LlamaIndex and Airflow.”

“Unity developer who has shipped VR games on Meta Quest/Oculus Go and demonstrates strong performance engineering for constrained hardware (multithreading, Unity Job System, Jump Point Search). Has built multiple games largely solo (e.g., Tap & Conquer), handling UI/flow, core gameplay, and save systems, and uses AI to speed up build/test/backup automation via shell scripting.”

“Built and owned an end-to-end Python/Postgres job-tracker backend that scrapes job postings (including LinkedIn) using Selenium-driven real-browser automation, with deduplication and data-quality filtering. Has practical experience migrating deployments from DigitalOcean to Vercel and emphasizes documentation, roadmapping, and testing as part of an iterative delivery cycle.”

“Backend Java developer who built an end-to-end upcoming payments feature: Spring Boot/Hibernate microservices with MySQL query/index optimization and Kafka event publishing, plus a web UI timeline component enabling users to view, skip, and edit scheduled payments with clear status indicators.”

“Data/ML platform engineer with ~6 years in financial services and enterprise data platforms, building regulated fraud/credit-risk pipelines on AWS (Airflow, EMR/Spark, MLflow) and an Azure lakehouse ingesting 50+ sources and serving ~100M records/day. Also led an early-stage deployment of a RAG-based internal AI search tool using AWS Bedrock and LangChain with automated evaluation to validate LLM accuracy.”

Gautam Agrawal

Screened

Mid-Level Software Engineer specializing in backend systems, cloud, and applied LLM/NLP

IN, USA4y exp

“Applied LLMs to classify long nonprofit mission statements into 8 segments without labeled data, using an ensemble of clustering/embedding methods plus zero-shot RoBERTa/BART and a Tree-of-Thought prompting pipeline with LLM-as-judge evaluation (Gemma). Also built LangChain/LlamaIndex agentic RAG workflows including a text-to-SQL data analysis assistant grounded on DB schema with retries and performance optimizations on an HPC cluster.”

Jacopo Essenziale

Screened

Executive Game Developer specializing in multiplayer VR and cross-platform titles

Milano, Italy12y exp

“Lead Unity VR developer who shipped the commercial Meta Quest motorcycle racing game VRider SBK, with deep focus on multiplayer and porting across headsets (including Pico XR and PlayStation VR2). Built custom Unity tooling (tile-based level editor plugin) and applies ML-Agents/LLM workflows to automate AI tuning and repetitive engineering tasks; also taught a VR Lab course at the University of Milan.”

Vengalarao Pachava

Screened

Junior AI Data Engineer specializing in Azure Databricks lakehouse and GenAI RAG systems

Irving, TX2y exp

“Backend/applied AI engineer from Cloud Rack Systems who built production GenAI/RAG and data platforms on Azure/Databricks at enterprise scale (2.5M records/day). Known for making LLM systems behave like deterministic services via strict retrieval contracts, citation-based validation, and strong observability—shipping a knowledge assistant used daily by 50+ users while driving hallucinations near zero and materially improving latency and cost.”

Bhavesh Patel

Screened

Senior Unity Developer specializing in AR/VR and multiplayer games

CA, United States9y exp

“Unity VR developer with 3 years of experience shipping games for Meta Quest, focused on gameplay event handling and animation control. Prefers structured production environments and on-site, 9-to-5 work; notes multiplayer development as a more challenging area.”

“Frontend-leaning full-stack engineer who discusses building production React features integrated with backend APIs, Redux, and Algolia search. Shows strong awareness of maintainability and release safety through TypeScript modeling, feature flags, Sidekiq for async processing, and post-launch monitoring of traffic and pod memory.”

“Unity developer (3+ years) focused on mobile multiplayer/casual games, combining technical leadership with game design ownership. Has shipped modular gameplay systems, integrated monetization/analytics, and built a custom Unity Editor plugin for configurable combat/animation montage workflows (masking + blending). Not experienced with VR/Meta Quest yet.”

“Full-stack engineer operating in early-stage, high-velocity environments (OpGov.AI/UST Calibrate) who ships production Next.js App Router features end-to-end (RSC, Server Actions, SEO, RBAC, caching) and owns performance post-launch. Demonstrates strong data/infra depth—designed Postgres JSONB-based event models for DevOps/DORA analytics and tuned queries from ~2s to <50ms, plus built durable ingestion workflows with retries and idempotency on Azure.”

Manas Agarwal

Screened

Junior Full-Stack Software Engineer specializing in Python APIs, React, and cloud AI integrations

Superior, CO2y exp

“Customer-facing software engineer who builds and deploys practical AI/RAG solutions (e.g., an AI assistant for searching billing PDFs) by deeply understanding support workflows and iterating with users. Demonstrates strong production instincts—quickly stabilizing peak-traffic API timeouts with caching/background jobs, then implementing durable fixes with proper monitoring and maintainable code practices.”

Laurentino Vilchez

Screened

Senior Game Programmer specializing in cross-platform gameplay systems (Unreal/Unity)

10y exp

“Game developer with Unity and Unreal multiplayer experience who scaled a simple player profile into a major personalization feature using PlayFab, including a JSON-based workaround to overcome free-tier storage limits. Strong hands-on performance optimization background on mobile and Nintendo Switch, and collaborates closely with designers by building highly parameterized, iteration-friendly gameplay systems (character switching/special attacks, emotes).”

Ruslan Gurbanov

Screened

Senior Game Developer specializing in Unity, multiplayer systems, and AR/VR

Baku, Azerbaijan10y exp

“Unity/VR developer who previously built games largely from the ground up and delivered a standout immersive VR experience by synchronizing a real CNC-cut Browning M2 physical prop with an in-game mounted weapon. Has multiplayer/networking experience with UNet, FishNet, and a more advanced custom MST framework implemented for a startup, and uses AI tools to speed up debugging and complex feature work like root-motion locomotion.”

Mohammad Savari

Screened

Senior Gameplay Programmer specializing in Unity systems and game development

Leland, NC8y exp

“Gameplay engineer with hands-on ownership of core systems across both Unity/C# and UE5, including a full item/inventory/vendor pipeline and a server-authoritative co-op multiplayer architecture. Stands out for combining data-driven design, tooling, and disciplined validation workflows—including LLM-assisted content generation—to improve iteration speed and stability.”

“Built and owned a production-grade RAG/LLM support automation system on AWS using GPT-4, Pinecone, FastAPI, and Redis, taking it from initial experimentation through deployment, monitoring, and iterative improvement. Their work reduced support workload and ticket volume by about 40%, improved CSAT and self-service resolution, and they also created shared Python/LLM infrastructure that accelerated other teams' delivery from weeks to days.”

“Robotics software engineer/research associate with an MS in Robotics who built a ROS2-based, self-healing multi-robot fleet framework as a solo developer, combining LLM-driven decision-making (Gemini/ADK) with persistent fleet memory for cross-robot learning. Also has hands-on autonomy stack experience (Nav2, SLAM) and real-world robotics work including EKF sensor fusion for an excavator robot and closed-loop hydraulic control optimization.”

“Backend engineer who owned the API layer for an AI trust/analytics dashboard (trust scores, stability checks, public verification endpoints) using Python/FastAPI and Postgres. Has hands-on DevOps experience deploying FastAPI and Node.js services to AWS Kubernetes with GitHub Actions + ArgoCD GitOps, plus Kafka-based real-time event streaming and careful staged migration practices (shadow traffic/dual writes, rollback planning).”

“Remote game QA tester with PlayStation and Xbox testing experience, using Jira to track bugs and create test case reports while collaborating directly with development teams. Has tested titles/projects including Valorant, Roblox, and Unity 3D games, and has self-studied Microsoft XR certification requirements.”

“Game QA professional with AAA open-world shipping experience, owning high-impact quality risks like save-data corruption, progression blockers, performance drops, and multiplayer desync. Demonstrates strong systems thinking and exploit prevention (e.g., reproduced and helped fix a reward-duplication race condition using network interruption + rapid input), with disciplined JIRA/TestRail workflows and evidence-driven bug reporting.”