Muhammad Hamza Khan
Chicago,IL
Summary
Full-Stack Engineer specializing in scalable distributed systems within monolith and microservice frameworks. Successfully led initiatives such as In-Person Mobile Payments at Adyen and grocery support integration at Grubhub. Proficient in full-stack application design and deployment, with expertise in backend systems, database optimization (SQL/NoSQL), and event-driven architecture utilizing Kafka. Experienced in mentoring teams and delivering impactful user-facing features aligned with business objectives.
Overview
6
6
years of professional experience
Work History
Lead/Staff Software Engineer
McMaster-Carr
Chicago, IL
03.2025 - Current
- Architected event-driven messaging platform to facilitate scalable, decoupled services across internal systems.
- Developed full-stack applications using React.js and Node.js for reusable front-end components and robust back-end APIs.
- Leveraged AI tools like GitHub Copilot and Cursor to accelerate development cycles and validate edge cases.
Senior Software Engineer
Adyen
Chicago, IL
03.2024 - 03.2025
- Spearheaded development of mobile payment systems, ensuring successful delivery on Spring Boot Java-based architecture.
- Collaborated with Apple Inc. and American Airlines to implement offline payment capabilities for Tap to Pay, improving reliability in low-connectivity situations.
- Led two workstreams, resulting in a 2% increase in in-person payment revenue.
- Engineered database integrity and encryption protocols in PostgreSQL, enabling Adyen's inclusion in top 10 for MPoC certification submissions.
- Contributed to core payments backend, securing Level 3 certifications for American Express and MasterCard acquirers before waiver expiration in Q4 2024.
- Developed dynamic SDK configuration and attestation APIs, enhancing fraud detection and reducing incidents by 30%.
- Established Service Level Objectives (SLOs) to address merchant challenges linked to system inefficiencies, improving incident management processes.
Senior Software Engineer
Grubhub Inc
Chicago, IL
05.2019 - 03.2024
- Developed and orchestrated implementation of grocery support subsystem on Grubhub platform with five cross-functional teams.
- Led integration of third-party systems, including Stripe and Olo Rails, utilizing pub-sub and webhook-driven patterns.
- Provided architectural guidance for projects across eight Java Spring microservices within restaurant domain.
- Re-architected menu item data storage to enhance system resiliency and fault tolerance.
- Directed implementation of idempotent asynchronous progress tracking feature, boosting conversion rates by eight percent.
- Mentored four engineers, facilitating sprint ceremonies to achieve development readiness within two months.
Education
Computer Engineering -
Illinois Institute of Technology
Chicago12.2019
Skills
- Java
- Python
- API development
- Microservices
- GraphQL
- AWS
- Cassandra
- PostgreSQL
- Cursor/Copilot
- Kafka
- WebSockets
- Javascript
- Reactjs
- Nodejs
Timeline
Lead/Staff Software Engineer
McMaster-Carr
03.2025 - Current
Senior Software Engineer
Adyen
03.2024 - 03.2025
Senior Software Engineer
Grubhub Inc
05.2019 - 03.2024
Computer Engineering -
Illinois Institute of Technology
Similar Profiles
Jalen C. WilliamsJalen C. Williams
Customer Support Specialist at McMaster-CarrCustomer Support Specialist at McMaster-Carr
Jojo GanirJojo Ganir
Customer Service Generalist at McMaster-CarrCustomer Service Generalist at McMaster-Carr
Christopher ShannonChristopher Shannon
Warehouse Operator at McMaster-CarrWarehouse Operator at McMaster-Carr
Mallory ReamerMallory Reamer
Freight Operations Specialist at McMaster-CarrFreight Operations Specialist at McMaster-Carr
Maria Lourdes CruzMaria Lourdes Cruz
Certified Pharmacy Technician at CVS CaremarkCertified Pharmacy Technician at CVS Caremark