Open to opportunities

Shah Zaib

@shahzaib3

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Senior Full Stack Engineer specializing in scalable cloud-native systems and API-driven platforms.

United States

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What I'm looking for

I seek senior engineering roles building scalable, secure cloud-native systems where I can lead architecture, mentor teams, and drive DevOps automation.

I am a Senior Full Stack Engineer with 10 years of experience designing and delivering scalable, cloud-native web platforms using Java (Spring Boot), Node.js, Python, and PHP/Laravel. I focus on clean architecture, high availability, and secure solutions across AWS, Azure, and GCP.

I have led architecture and full-stack development for payment platforms, multi-tenant SaaS products, and high-traffic e-commerce systems, implementing GraphQL and REST APIs, event-driven Kafka pipelines, and robust CI/CD practices that reduced errors and improved performance.

I mentor teams, conduct security and compliance work (PCI-DSS, HIPAA, GDPR), and drive DevOps automation to accelerate delivery. I am passionate about modernizing legacy systems, optimizing performance, and building resilient, maintainable engineering solutions.

Experience

Work history, roles, and key accomplishments

Senior Full Stack Engineer

iOPEX Technologies

Oct 2023 - Jun 2025 (1 year 8 months)

Led architecture and full-stack development of a cloud-native, microservices payment platform with real-time fraud detection, improving API response times by 40% and reducing production errors by over 35%.

Spring Boot Python GraphQL Kafka AWS PCI DSS Microservices CI CD Automated Testing

Full Stack Web Developer

Agiliway

Aug 2020 - Aug 2023 (3 years)

Architected and delivered multi-tenant SaaS platforms across healthcare, fintech, and education; implemented API standardization and CI/CD pipelines, enforcing PCI-DSS/HIPAA/GDPR compliance and improving release velocity.

React Next.js PostgreSQL Redis GraphQL AWS Azure CI CD Automated Testing

Full Stack Engineer

inVerita

Jan 2019 - Jun 2020 (1 year 5 months)

Led full-stack development of a high-traffic e-commerce platform, implementing order management, payment processing, and real-time delivery tracking to support thousands of daily transactions.

Laravel AngularJS PHP Redis RabbitMQ REST GraphQL CI CD Performance Optimization Automated Testing

Full Stack Developer

BitCot

Aug 2017 - Dec 2018 (1 year 4 months)

Enhanced a billing platform with Spring Boot and PostgreSQL, delivering automated reconciliation that reduced revenue leakage by 15% and refactored monoliths into modular services to improve maintainability.

Spring Boot PostgreSQL AngularJS Junit Microservices Refactoring CI CD Unit Testing Integration Testing

Frontend Engineer - Intern

Sibedge

Jun 2015 - Jun 2017 (2 years)

Built interactive React and AngularJS components, integrated third-party APIs (Stripe, PayPal, Twilio), and implemented end-to-end testing to improve UX and reduce post-release defects.

React Redux AngularJS Stripe PayPal Mocha Jest Cypress PHP (Laravel)

Education

Degrees, certifications, and relevant coursework

California Institute of Technology

Bachelor of Science, Computer Science

2010 - 2014

Completed a Bachelor of Science in Computer Science with coursework and projects focused on software engineering, algorithms, and systems development.