Zeeshan A. - Full Stack Developer | Spring Boot | JPA | Spring AI | ReactJS | Angular | Kafka |

Doha, Qatar

Experience

Jan 2023 - Present

3 years

Sanad Chat-Based Application for Search & Rescue Ops

Qatar Government

Designed and led development of a scalable microservices chat application using Spring Boot, API Gateway, and Spring Security with LDAP, facilitating 5 000+ concurrent users.
Implemented JWT-based authentication and encrypted 1:1/group chats with media, voice/video (Jitsi), and location sharing.
Integrated Jitsi for video conferencing, resolving audio latency and connection instability, boosting user engagement by 20% within the first month.
Integrated Micrometer and Zipkin for distributed tracing, reducing debugging time by 40%.
Built a reusable and responsive live tracking map component with ReactJS and ArcGIS to improve mission visibility for 50+ departments.

Jan 2022 - Dec 2023

2 years

Enterprise Risk Management Software (Ejaz ERM)

Qatar Government

Developed a modulith-based dynamic web app enabling real-time risk profiling, audit trails, and data-driven decision-making.
Applied domain-driven design to build a modulith architecture with clear domain boundaries for improved maintainability and scalability.
Integrated third-party systems (e.g., Qatar Crisis Management, Vehicle Violation Reporting) via secure REST APIs for seamless cross-platform data synchronization.
Optimized performance with Redis caching, reducing database load by 40%.
Delivered a user-friendly solution adopted by 15+ enterprises, streamlining risk management workflows by 60%.

Jan 2020 - Dec 2022

3 years

GISTracker - Work-Force Planning Application (FIFA World Cup System)

Qatar Government

Migrated a monolithic GIS platform to microservices, enabling scalable management of events, teams, referees, and VIPs.
Developed a JWT-based authentication service (login, logout, password recovery) with role-based access control to secure inter-service communication.
Built an event-driven system using Apache Kafka for real-time coordination across 50+ departments, reducing missed deadlines by 20%.
Developed a drag-and-drop geospatial planning interface using ReactJS, ArcGIS, and KonvaJS, resulting in a 60% improvement in location accuracy.

Jan 2019 - Present

7 years

Doha, Qatar

Lead Full Stack Developer

Ministry of Interior, Qatar

Bridged business needs with technical solutions for e-Governance backend domain across ministries in Qatar, overseeing end-to-end delivery from design and development to production.
Maintained and enhanced a giant monolithic system while strategically breaking it down into microservices.
Coordinated with clients to ensure smooth business migration and service continuity in production environments.
Developed reusable and responsive UI components using React, Angular, and TypeScript to enhance user experience across various modules.
Drove sprint planning, code reviews, and CI/CD automation via Azure DevOps.
Implemented DevSecOps practices including penetration testing, vulnerability assessments, OWASP guidelines, and GDPR compliance.
Led proof-of-concept integrating AI-powered retrieval-augmented generation with on-premises large language models to boost system intelligence.
Provided post-deployment support and resolved critical production issues.

Jan 2015 - Dec 2019

5 years

India

Senior Software Engineer

Optum Technology

Developed new microservices with REST endpoints based on customer requirements.
Coordinated day-to-day integration with the UI team and maintained existing services.
Worked on defect fixes for the read-only microservices project that was about to go live.
Improvised queries used in services for performance improvements.
Applied test-driven development and SonarQube to increase code coverage by 90% and cut production defects by 50%.

Jan 2015 - Dec 2019

5 years

Full Stack Developer

UnitedHealth Care

Handled a high-traffic healthcare portal for 16 million users, enabling secure policy registration, claims management, and access to medical/dental/vision benefits via an intuitive Angular-based interface.
Expanded platform capabilities by introducing infant-care coverage, increasing benefit offerings by 20% and enhancing healthcare access for 200 000+ members.
Developed a geolocation-powered provider search feature, enabling users to locate 100+ nearby healthcare providers and cutting average search time by 30%.
Supported seamless rollouts using canary and go-green deployments, minimizing downtime.
Provided check-out support during critical releases, resolving post-deployment issues within SLA and improving user satisfaction.

Summary

Senior Full Stack Java Developer with 9+ years of experience building scalable, high-performance applications using Java, React, Angular, and microservices architecture. Proficient in DevSecOps, CI/CD, Docker, and Kubernetes.

Provide post-deployment support and resolve critical production issues.