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I’m a Senior Full Stack Engineer with over a decade of experience, focusing on backend-heavy work with Node.js, NestJS, and Express.js while delivering solid full‑stack systems with React, Next.js, and Vue on the frontend. I enjoy crafting scalable, maintainable architectures and delivering value fast for users and stakeholders. I excel in REST API design, GraphQL, microservices, Postgres and MongoDB, OAuth 2.0, JWT, and cloud-based backends on AWS and Azure. I’ve also integrated end-to-end AI features by wiring OpenAI APIs, LangChain, and RAG-style pipelines into production Node.js services, while keeping architecture clean and scalable.…I’m a Senior Full Stack Engineer with over a decade of experience, focusing on backend-heavy work with Node.js, NestJS, and Express.js while delivering solid full‑stack systems with React, Next.js, and Vue on the frontend. I enjoy crafting scalable, maintainable architectures and delivering value fast for users and stakeholders. I excel in REST API design, GraphQL, microservices, Postgres and MongoDB, OAuth 2.0, JWT, and cloud-based backends on AWS and Azure. I’ve also integrated end-to-end AI features by wiring OpenAI APIs, LangChain, and RAG-style pipelines into production Node.js services, while keeping architecture clean and scalable.

Umair Abbasi

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

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I’m a Senior Full Stack Engineer with over a decade of experience, focusing on backend-heavy work with Node.js, NestJS, and Express.js while delivering solid full‑stack systems with React, Next.js, and Vue on the frontend. I enjoy crafting scalable, maintainable architectures and delivering value fast for users and stakeholders. I excel in REST API design, GraphQL, microservices, Postgres and MongoDB, OAuth 2.0, JWT, and cloud-based backends on AWS and Azure. I’ve also integrated end-to-end AI features by wiring OpenAI APIs, LangChain, and RAG-style pipelines into production Node.js services, while keeping architecture clean and scalable.…I’m a Senior Full Stack Engineer with over a decade of experience, focusing on backend-heavy work with Node.js, NestJS, and Express.js while delivering solid full‑stack systems with React, Next.js, and Vue on the frontend. I enjoy crafting scalable, maintainable architectures and delivering value fast for users and stakeholders. I excel in REST API design, GraphQL, microservices, Postgres and MongoDB, OAuth 2.0, JWT, and cloud-based backends on AWS and Azure. I’ve also integrated end-to-end AI features by wiring OpenAI APIs, LangChain, and RAG-style pipelines into production Node.js services, while keeping architecture clean and scalable.

Available to hire

I’m a Senior Full Stack Engineer with over a decade of experience, focusing on backend-heavy work with Node.js, NestJS, and Express.js while delivering solid full‑stack systems with React, Next.js, and Vue on the frontend. I enjoy crafting scalable, maintainable architectures and delivering value fast for users and stakeholders.

I excel in REST API design, GraphQL, microservices, Postgres and MongoDB, OAuth 2.0, JWT, and cloud-based backends on AWS and Azure. I’ve also integrated end-to-end AI features by wiring OpenAI APIs, LangChain, and RAG-style pipelines into production Node.js services, while keeping architecture clean and scalable.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Language

English

Fluent

Work Experience

Chief Technology Officer & Co-Founder at Neblo.ai

February 1, 2025 - Present

Architect and lead development of Neblo.ai, an AI-native platform automating freight brokerage operations (load matching, carrier coordination, automated negotiation, instant booking), handling 5,000+ daily loads and thousands of concurrent conversations across TMS and messaging platforms.

Senior Full-Stack Developer at Prentus

April 1, 2024 - June 1, 2026

Owned backend architecture and feature delivery for an AI-powered multi-role SaaS platform, designing NestJS and Express.js service layers, PostgreSQL and MongoDB data models, REST and GraphQL API contracts, and JWT/OAuth 2.0 authentication end-to-end, with React/Next.js and Vue/Nuxt frontend integration as supporting capability. Led end-to-end delivery of AI-driven career workflow features, including structured prompt chaining and integration with external AI services.

Senior Full-Stack Developer | Team Lead at Seewithin

November 1, 2022 - April 1, 2024

Senior Full-Stack Developer and Team Lead for a health care workflow automation platform supporting radiology admin workflows, follow-up tracking, patient outreach automation, operational dashboards, and secure care-team communication. Designed backend services and data models, implemented OAuth 2.0 / JWT authentication, and delivered frontend modules with React/TypeScript and Next.js.

Senior Full-Stack Engineer at Spon tiv ly

September 1, 2020 - October 1, 2022

Analytics SaaS platform with API integrations, embeddable dashboards, and real-time business insights for B2B customers. Built modular NestJS services, GraphQL/REST endpoints, and multi-tenant data access patterns; integrated Firestore-backed data workflows and frontend dashboards.

Senior Full Stack Engineer at Nike

July 1, 2019 - August 31, 2020

Contributed as a senior full-stack engineer on large-scale digital initiatives, leveraging a mix of React Native, React JS, and backend services to deliver impactful features for global brands.

Senior Full-Stack Developer at Nike

January 1, 2019 - August 1, 2020

Internal demand and shaping tools supporting seasonal sales planning, product forecasting, and pricing visibility for Nike business teams. Designed and implemented data models (PostgreSQL/MySQL), REST/GraphQL APIs, and cross-functional frontend interfaces using React/TypeScript; led containerized deployments and CI/CD pipelines.

CEO & Chairman of the Board at CloudPacer

March 1, 2018 - Present

Led enterprise engagements delivering modernized applications, AI-powered solutions, scalable SaaS platforms, data modernization, cloud management, and staff augmentation, ensuring secure, high-performance, and scalable project execution.

Full Stack Developer at Walmart Labs

May 1, 2016 - January 1, 2019

Internal search tooling platform management for product visibility, ranking, and seasonality features across Walmart’s frontend and internal product discovery systems. Built Node.js/Express backends, multi-tenant data access patterns, and React frontends; implemented Docker-based deployments and CI/CD.

Full Stack Engineer (Contract) at Walmart

May 1, 2016 - June 30, 2019

Delivered full-stack engineering for retail applications, building scalable services and improving reliability and performance across platforms.

Full-Stack Developer at Macy’s

March 1, 2014 - April 30, 2016

Developed full-stack features for Macy’s e-commerce platforms, enhancing system reliability and performance.

Software Developer at Macy's

November 1, 2012 - April 1, 2016

Retail marketing and product discovery systems, backend microservice integrations, and internal product discovery tooling. Built RESTful services, data transformation modules, and moved platform functionality toward modular NPM packages for reuse across teams.