Usman Ali
Verified Expert in Engineering
React Developer
Melbourne, Victoria, Australia
Toptal member since June 26, 2020
Usman is a senior AI and full-stack engineer with 10+ years of experience building enterprise SaaS platforms, cloud-native applications, and AI-powered products for startups and global organizations. He specializes in React, TypeScript, Python, Node.js, and modern cloud platforms, helping businesses turn complex ideas into scalable production systems.
Portfolio
Experience
- React - 10 years
- Node.js - 10 years
- TypeScript - 8 years
- Python - 8 years
- Amazon Web Services (AWS) - 8 years
- System Architecture - 8 years
- Artificial Intelligence (AI) - 6 years
- Large Language Models (LLMs) - 3 years
Work Experience
Senior AI & Full-stack Engineer
Toptal
- Delivered enterprise AI and SaaS solutions for startups and established companies across healthcare, fintech, eCommerce, logistics, and enterprise software.
- Designed and built production-ready AI systems using large language models (LLMs), retrieval-augmented generation (RAG), intelligent agents, and workflow automation to solve complex business challenges.
- Architected scalable back-end services and modern React applications while leading technical design, cloud architecture, and production deployments.
- Worked closely with founders, executives, and cross-functional teams to translate business requirements into scalable software products.
- Built long-term client relationships through reliable delivery, clear communication, and ownership of projects from architecture through production.
Software Engineer
HP Inc
- Developed enterprise software supporting business-critical platforms used across large-scale operational environments.
- Built scalable back-end services, REST APIs, and front-end applications while contributing to cloud migration and modernization initiatives.
- Designed reusable software components, automated deployment processes, and engineering best practices that improved maintainability and delivery efficiency.
- Participated in architecture discussions, peer reviews, and cross-functional collaboration to deliver secure, reliable enterprise software.
- Established strong engineering fundamentals in software architecture, distributed systems, and cloud-native development that continue to support my work today.
Project History
Enterprise AI Healthcare Platform
I was responsible for the solution architecture, front-end and back-end development, cloud infrastructure, and AI integration. Working closely with product leaders and engineering teams, I designed scalable React and Node.js applications, built secure APIs, implemented LLM-powered workflows, and optimized the platform for enterprise-scale performance and reliability. The result was a production-ready AI platform that improved workflow efficiency, reduced manual effort, and established a scalable foundation for future AI capabilities.
AI Agent & Intelligent Automation Platform
I led the platform architecture and implementation, integrating OpenAI and Claude models into production-ready services while designing scalable back-end APIs, evaluation workflows, and cloud-native infrastructure. The project significantly reduced manual knowledge retrieval and accelerated business decision-making through intelligent automation.
ReportWell Compliance & Workflow Platform
I designed the core front-end and back-end architecture, developed secure APIs, implemented role-based access control, and optimized reporting for large datasets. The solution delivered a scalable SaaS platform that simplified compliance management and reduced administrative overhead.
Enterprise SaaS Platform
I owned the technical architecture across front end, back end, database design, and deployment automation, collaborating closely with product teams to deliver production-ready software that scaled with customer demand.
Real-time Collaboration Platform
I designed scalable back-end services, implemented WebSocket-based communication, optimized application performance, and delivered responsive front-end experiences capable of handling concurrent users with low latency.
Cloud Modernization & Platform Engineering
I led architecture planning, cloud migration, deployment automation, and back-end modernization while establishing reusable engineering standards and CI/CD pipelines that significantly improved delivery efficiency and platform scalability.
Education
Master's Degree in Information Technology
Deakin University - Burwood, Victoria, Australia
Bachelor of Science Degree in Computer Science
Air University - Islamabad, Pakistan
Skills
Libraries/APIs
React, Node.js, REST APIs, Shopify API, OpenAI API, HubSpot API
Tools
Claude, Sentry, Claude Code, Azure OpenAI Service, Terraform, Git
Languages
SQL, TypeScript, Python, JavaScript, CSS, HTML, GraphQL, Swift, Java, C++
Frameworks
Next.js, Express.js, Ruby on Rails (RoR), Tailwind CSS, React Native, LangGraph
Paradigms
Microservices, Agile Software Development, Database Design, Azure DevOps, DevOps, Object-oriented Programming (OOP)
Platforms
Amazon Web Services (AWS), Azure, Google Cloud Platform (GCP), Vercel, Shopify, iOS, Docker, HubSpot, SimplyBook.me, Visual Studio Code (VS Code), Kubernetes, MacOS
Storage
PostgreSQL, MySQL, Database Management, Redis, MongoDB, Datadog, Database Management Systems (DBMS)
Other
Artificial Intelligence (AI), System Architecture, SaaS, Cloud Architecture, CI/CD Pipelines, Performance Optimization, Authorization, Software Architecture, Algorithms, Full-stack, Full-stack Development, Minimum Viable Product (MVP), API Integration, APIs, Integration, Agentic Coding, Turborepo, Architecture, User Experience (UX), Agentic AI, Multi-agent Orchestration, Multi-agent Systems, Workflow, Workflows, HIPAA, HIPAA Electronic Data Interchange (EDI), Healthtech, Cloud Storage, eCommerce, Shopify Theme, Maps, LangChain, Authentication, GitHub Actions, Large Language Models (LLMs), FastAPI, Anthropic, Retrieval-augmented Generation (RAG), AI Agents, Prompt Engineering, Semantic Search, Vector Databases, Supabase, Distributed Systems, Technical Leadership, Web Accessibility, Machine Learning, SOC 2, WebSockets, OpenAI, System Design, Computer Science, Software Engineering, Data Structures, Operating Systems, Software Development, Web Development
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