Vetted Backend Development Professionals

Toufiq Hasan

Screened

Entry-level Software Engineer specializing in backend and AI integration

New York, NY1y exp

“Built and shipped an LLM-powered crypto price tracking and alert agent in a web environment that scaled to roughly 10,000 users. The candidate emphasizes production reliability, structured outputs, and data normalization, and cites strong product impact including retention growth from 35% to 65% and roughly 95% positive user validation on alert interpretations.”

Maria Indacochea

Screened

Junior Full-Stack Software Engineer specializing in accessible front-end development

Remote, USA4y exp

“Front-end-focused software engineer from Edutrak who helped build a unified browser-based user services platform by consolidating multiple legacy products into a scalable Vue/TypeScript architecture. Stands out for hands-on legacy modernization work, including cleaning up large inherited codebases, standardizing frontend structure, and improving navigation and usability across education-related services.”

“ERP-focused full-stack developer and consultant with hands-on Odoo customization experience across POS, frontend OWL UI, backend Python logic, reporting, and client integrations. Also builds modern TypeScript applications with React, NestJS, GraphQL, and PostgreSQL, giving them a blend of enterprise business systems experience and contemporary web-stack capability.”

“Robotics engineer who built an educational/research robotic arm end-to-end, including IK/FK math, simulation-based validation, and ROS2 Humble integration with multiple teleoperation inputs (DualSense and Leap Motion). Also optimized a resource-constrained ESP32-S3 wireless maze robot to stream real-time video and sensor data over WiFi using TCP/HTTP with RTOS-based concurrency and binary struct packing.”

“Software engineer actively using AI-first development workflows, including Cursor, prompt engineering, and multi-agent setups, to dramatically compress development time. Most notably, they say they built a Regression Optimizer product end-to-end from scratch and used multi-agent approaches to improve troubleshooting and response quality.”

“Built and shipped a production LLM-powered document processing agent (ingestion→OCR→LLM extraction/classification→validation→DB/workflow triggers) using Kafka and PostgreSQL. Emphasizes production reliability with strict JSON schemas, idempotent services, retries/backoff, fallback models, and human-in-the-loop review—driving ~90% automation, minutes-to-seconds processing, and ~10x throughput.”

“Backend/data engineer with hands-on production experience building a FastAPI Python service on AWS for real-time AI workflows (Postgres/Redis, containers behind API Gateway) with strong reliability practices (JWT auth, timeouts/retries, health checks). Has delivered AWS infrastructure using Terraform + GitHub Actions across environments, built Glue ETL pipelines into Snowflake with idempotent recovery, and modernized legacy batch workflows via parallel-run parity validation and phased cutovers.”

“Unity developer who has published multiple games (e.g., "Hole people", "beads out") and reports building nearly everything inside the games himself, including gameplay, remote config, and A/B testing. Also built "Age of battles PvP" with backend server, economy, multiplayer, analytics, and blockchain/Web3/NFT functionality, including custom verification logic to mitigate third-party transaction delays. Currently earning about $3,000/month due to covering both backend and Unity/multiplayer responsibilities.”

“Frontend-focused engineer with experience building complex browser-based internal tools for public safety teams, emphasizing role-based usability, reusable components, and multi-system API integration. They also demonstrate practical performance tuning skills in React/TypeScript applications, including reducing unnecessary re-renders and simplifying workflows to improve user efficiency.”

“Early-career full-stack engineer who has not yet shipped a professional customer-facing product but has built sophisticated AI-driven systems in personal/academic work, including a multi-tenant AI knowledge base (async ingestion, pgvector semantic search, SSE real-time updates, knowledge graphs) and an AI-powered code review assistant designed to process thousands of jobs via Redis/BullMQ.”

“Unity developer with several years of experience building and publishing games, including an 8-month largely solo FPS demo featuring physics-heavy interactions and a procedural enemy reaction system blending animation and ragdoll. Has prototyped VR interactions with XR Interaction Toolkit and explored Meta SDK integration for Meta devices, and uses AI assistants to speed up prototyping and performance optimization.”

MARCOS FILHO

Screened

Mid AI/Software Engineer specializing in LLMs, agents, and distributed systems

Recife, Brazil3y exp

“Solo builder focused on backend and AI-driven decision-support products, especially around real estate/tower investment use cases in Dubai and Brazil. Describes hands-on work with PostgreSQL, Redis, crawlers, caching, LLMs, embeddings, and agent-style systems, with an emphasis on shipping end-to-end under ambiguous requirements.”