Shahzaib Khan

Frontend Developer – Stemexe / Exceeders

Technologies: Angular, Angular Material, NgRx, TypeScript, SCSS
Role: Frontend Development

• Led frontend development for enterprise-grade Angular applications with a strong focus on scalability and maintainability.
• Built rich, responsive user interfaces using Angular Material, ensuring consistent design systems and accessibility standards.
• Implemented state management using NgRx, enabling predictable data flow and improved application performance.
• Designed and maintained reusable UI components, shared modules, and feature-based architecture.
• Collaborated closely with backend teams to define API contracts and ensure seamless frontend–backend integration.
• Improved application responsiveness, performance, and code quality through best practices and regular code reviews.

Full Stack Developer – Gymnastrio (SaaS Platform)

Technologies: Angular, .NET Core, BullMQ, Stripe
Role: Full Stack Development

• Built and scaled a SaaS-based gym management platform, handling memberships, billing, and operations.
• Architected backend services using .NET Core, with BullMQ-based queue processing for background jobs and system events.
• Implemented Stripe recurring billing, subscription plans, and secure payment workflows.
• Took ownership of full feature lifecycles—from requirements to deployment and post-release support.
• Ensured application stability, security, and performance in a production SaaS environment.
• Worked asynchronously with distributed teams, ensuring clear documentation and communication.

Senior Full Stack Developer – Exsim.ai

Technologies: React, NestJS, Stripe
Role: Full Stack Development

• Led development of a scalable exam and assessment platform using React and NestJS, serving a growing remote user base.
• Designed and owned backend architecture, implementing modular services, role-based access, and RESTful APIs.
• Integrated Stripe subscriptions and payments, including webhook handling and failure recovery flows.
• Collaborated remotely with cross-functional teams (product, design, QA) across time zones.
• Improved application performance and reliability through optimized database queries and structured error handling.
• Actively participated in architectural discussions and code reviews.