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Usman M.

Santa Clara, California

$120/hr

5.0

2 jobs

Staff Engineer & Architect | Hands-On Leader | React, Node.js, Java, Microservices Need an architect who doesn't just design systems but actually builds them? I'm Usman, and I'm not your typical engineering leader who's stepped away from the keyboard. Over 20 years, I've stayed hands-on—writing code, architecting systems, and leading teams at companies like Intuit, Carta, and Oracle. I believe the best leaders code alongside their teams. What Makes Me Different: 💻 Hands-On Technical Leader I don't just delegate—I architect, code, and deploy production systems myself Led microservices migration at Carta while personally implementing the core service extraction Built Intuit's API Orchestrator and contributed directly to critical components At DealCart, I architected AND helped build the entire ecosystem from consumer apps to warehouse management 🏗️ Architecture & Systems Expertise Successfully broke Carta's monolith into microservices (solved a 2-year problem in months) Designed Intuit's Webhook System processing 35-40 million events daily Expert in distributed systems, fault tolerance, and scalability Reduced MySpace IM load time from 15 seconds to under 3 seconds while cutting 60% of code 👥 Team Building & Mentorship Grew DealCart's engineering team from 1 to 20 engineers Founded mentorship program at Carta as Staff Engineer I code WITH my team, not just for them—leading by example My Technical Stack: Backend: Java, Node.js, Python, Spring Boot, Kafka, ActiveMQ, Microservices Frontend: React, Redux, HTML5, CSS3, JavaScript (I build UIs too) Cloud & DevOps: AWS, Jenkins, CI/CD pipelines Databases: MongoDB, Cassandra, SQL Server, Oracle Architecture: REST APIs, SOA, Distributed Systems, GraphQL Mobile: iOS (Objective-C, Swift), Android What I Can Do For You: ✅ Architect & Build - I design the system AND write production-ready code ✅ Rescue Legacy Systems - Modernize monoliths, fix performance issues, eliminate tech debt ✅ Scale Your Architecture - Build systems that handle millions of requests ✅ Mentorship & Code Reviews - Level up your team while delivering features ✅ Full-Stack Development - Backend services to React frontends—I do it all My Approach: I start by understanding your business goals, then I roll up my sleeves and build the solution. You get strategy AND execution from one person. Whether you need someone to architect your microservices migration or jump into your React codebase and ship features, I'm equally comfortable. Ready to work with a technical leader who actually codes? Let's discuss your project. I bring 20 years of experience, but I'm still shipping code every week.

Software Architecture
Distributed Computing
Java
Spring Boot
Web Application Development
React
Oracle Database
Oracle SOA Suite
Heroku
Oracle WebLogic Server
Scrum
SaaS Development
Innovative Software Solutions Picas
Software Design Pattern
Cloud Architecture

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