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Full Stack Engineer with 6+ years building and shipping production web applications end-to-end—React frontends, Node.js/TypeScript and Python backends, and cloud deployment on AWS with Docker and CI/CD. Specialized in integrating AI/ML into real workflows (multi-agent systems, RAG pipelines, and natural-language interfaces) rather than demos. Strong record improving performance and scalability via caching, background workers, query and schema tuning, and production-grade engineering practices. Comfortable moving fast in small startup teams: ownership from design through debugging, code reviews, and technical documentation.…Full Stack Engineer with 6+ years building and shipping production web applications end-to-end—React frontends, Node.js/TypeScript and Python backends, and cloud deployment on AWS with Docker and CI/CD. Specialized in integrating AI/ML into real workflows (multi-agent systems, RAG pipelines, and natural-language interfaces) rather than demos. Strong record improving performance and scalability via caching, background workers, query and schema tuning, and production-grade engineering practices. Comfortable moving fast in small startup teams: ownership from design through debugging, code reviews, and technical documentation.

Muhammad Usman

Back-End Developer, Full Stack Developer, Web Developer, +4

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Full Stack Engineer with 6+ years building and shipping production web applications end-to-end—React frontends, Node.js/TypeScript and Python backends, and cloud deployment on AWS with Docker and CI/CD. Specialized in integrating AI/ML into real workflows (multi-agent systems, RAG pipelines, and natural-language interfaces) rather than demos. Strong record improving performance and scalability via caching, background workers, query and schema tuning, and production-grade engineering practices. Comfortable moving fast in small startup teams: ownership from design through debugging, code reviews, and technical documentation.…Full Stack Engineer with 6+ years building and shipping production web applications end-to-end—React frontends, Node.js/TypeScript and Python backends, and cloud deployment on AWS with Docker and CI/CD. Specialized in integrating AI/ML into real workflows (multi-agent systems, RAG pipelines, and natural-language interfaces) rather than demos. Strong record improving performance and scalability via caching, background workers, query and schema tuning, and production-grade engineering practices. Comfortable moving fast in small startup teams: ownership from design through debugging, code reviews, and technical documentation.

Available to hire

Full Stack Engineer with 6+ years building and shipping production web applications end-to-end—React frontends, Node.js/TypeScript and Python backends, and cloud deployment on AWS with Docker and CI/CD. Specialized in integrating AI/ML into real workflows (multi-agent systems, RAG pipelines, and natural-language interfaces) rather than demos.

Strong record improving performance and scalability via caching, background workers, query and schema tuning, and production-grade engineering practices. Comfortable moving fast in small startup teams: ownership from design through debugging, code reviews, and technical documentation.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Beginner

Language

English

Advanced

Work Experience

Full Stack Engineer at BetterShop Analytics

April 1, 2024 - July 1, 2025

Built an AI-driven multi-tenant B2B analytics and workflow automation platform for 200+ business accounts. Designed and implemented a multi-agent orchestration system using LangChain/LangGraph and the Anthropic Claude API, routing user requests to finance, inventory, profitability, and disputes specialists. Created a text-to-SQL agent with RAG over Chromadb, including an answer-lifting feedback loop that increased answer accuracy from ~75% to ~95%. Delivered content optimization on AWS Bedrock using weighted keyword scoring and competitor analysis with human-in-the-loop review, and automated previously manual workflows. Developed the React frontend (dashboards, role-specific panels, and a conversational AI chat interface) consuming platform APIs via Apollo GraphQL. Implemented backend services in Node.js/NestJS/TypeScript with MySQL indexing and schema design, Redis caching, and BullMQ background workers; reduced inference cost per request from ~$0.60 to ~$0.06 using prompt caching and

Full Stack Engineer at QikFinds

February 1, 2023 - March 1, 2024

Developed and maintained a Chrome Web Store web platform and companion browser extension in React.js, Node.js (Express), and JavaScript for real-time product sourcing and profitability analysis. Built an AI-powered self-healing extraction service using the Anthropic Claude API that regenerated page selectors whenever sources changed, eliminating a recurring class of breakages and manual debugging. Extended the AI pipeline into an onboarding self-service flow so users could submit unsupported sources and extraction logic would be generated automatically. Designed RESTful APIs and MongoDB data models supporting real-time aggregation and profitability computation across 350+ sources as users browsed. Integrated Stripe subscription billing and third-party REST APIs. Deployed with Docker and GitHub Actions CI/CD using GitHub for version control and code review.

Full Stack Engineer at Qik Finds

February 1, 2023 - March 1, 2024

Developed and maintained a Chrome Web Store web platform and companion browser extension for real-time product sourcing and profit analysis. Engineered an AI-powered self-healing extraction service on the Anthropic Claude API that automatically regenerated page selectors when sources changed, eliminating a recurring manual debugging class. Extended the AI pipeline into self-service onboarding so users could submit unsupported sources and have extraction logic generated automatically. Designed RESTful APIs and MongoDB data models powering an aggregation layer that normalized and computed profit across 350+ sources as users browsed. Integrated Stripe subscription billing and third-party REST APIs; deployed using Docker and GitHub Actions CI/CD with Git for version control and code review.

Back-End Developer at SellerRepay

October 1, 2020 - Present

Automated high-volume operational claim workflows by transforming an internal tool into a scalable multi-tenant SaaS platform. Improved PostgreSQL query performance by optimizing queries, indexes, and schema design, reducing API response times by ~40%. Architected AWS infrastructure across Lambda, S3, and CloudWatch for cost-effective auto-scaling and high availability. Built tracking and reporting interfaces in React.js, Vue.js, and Next.js with monitoring to maintain reliability under peak load.

Full Stack Engineer at Brief Adler

August 1, 2020 - January 1, 2023

Architected and shipped a multi-tenant SaaS platform automating personalized customer communications at scale. Built and delivered the platform end-to-end using React.js, Next.js, TypeScript, and Node.js (NestJS/Express), including an templating engine that automated personalized communications without manual authoring. Designed MongoDB schemas and indexing strategy for templates and campaign workflow records, keeping queries performant as customer data grew. Integrated external REST APIs with automated retry, scheduled sync, and rate-limiting; secured multi-tenant access using JWT and OAuth2. Containerized services with Docker and deployed on AWS behind an API Gateway, replacing manual releases with automated CI/CD (build, test, deploy).

Full Stack Developer at Brief Adler

August 1, 2020 - November 1, 2021

Architected and shipped a multi-tenant SaaS platform automating personalized customer communications at scale. Delivered the platform end-to-end using React.js, Next.js, TypeScript, and Node.js (NestJS/Express), including an templating engine that automated personalized communications without manual authoring. Designed MongoDB schemas and an indexing strategy for records, templates, and campaign workflow steps to keep queries performant as customer data grew. Integrated external REST APIs with automated retry, scheduled sync, and rate-limit handling; secured multi-tenant access using JWT and OAuth2. Containerized services with Docker and deployed on AWS behind an API gateway, replacing manual releases with automated CI/CD for build, test, and deployment.

Back-End Developer at Seller Repay

January 1, 2016 - July 1, 2020

SaaS platform automating high-volume operational claim workflows. Led transformation of an internal tool into a scalable multi-tenant SaaS, automating end-to-end operational processing previously done manually. Optimized PostgreSQL queries, indexes, and schema design, improving API response times by ~40%. Architected AWS infrastructure across Lambda, S3, and CloudWatch for cost-effective auto-scaling and high availability. Built tracking and reporting interfaces in React.js/Vue.js/Next.js with monitoring to maintain reliability under peak load.

Software Engineer at BidX

January 1, 2016 - July 1, 2020

Developed and maintained RESTful APIs in Node.js and Express powering performance analytics dashboards, improving reliability with structured logging, error handling, and input validation. Integrated third-party REST APIs to ingest campaign, keyword, and performance data, with real-time metric calculations feeding reporting dashboards.

Software Engineer at Bid X

January 1, 2016 - July 1, 2020

Developed and maintained RESTful APIs in Node.js/Express to power performance analytics dashboards, improving reliability through structured logging, error handling, and input validation. Integrated third-party REST APIs for ingesting campaign, keyword, and performance data, with real-time metric calculations feeding reporting dashboards.