AbdulRehman Tahir

Software Engineer with hands-on experience building full-stack web applications using Java, Spring Boot, and Next.js. Experienced in designing RESTful APIs, implementing secure authentication (OAuth2, Keycloak) and role-based access control, and delivering multitenant SaaS platforms end-to-end. Comfortable working across the stack and collaborating with cross-functional teams to ship production-ready features.

Software Engineer — CRM CUP - Seroft Solutions - Lahore, Pakistan

(2025-04)

• Built a multi-tenant SaaS CRM platform with Keycloak-based authentication, RBAC, and secure tenant isolation to support multiple organizations on a single instance.
• Designed end-to-end workflows for company onboarding, customer and product management, lead generation and tracking, sales and purchase orders, and meeting scheduling.
• Delivered a scalable, role-based architecture spanning Super Admin to Business Partner user levels.
• Integrated Gumlet for optimized and secure media handling across the platform.
• Used AI tools to automate test case creation, improving development productivity and reducing manual QA effort.

Software Engineer — Safina - Seroft Solutions - Lahore, Pakistan

(2025-03 - 2025-04)

• Debugged and resolved issues in Safina, a pre-built real estate web application, improving overall stability.
• Implemented new analytics dashboard features to surface property and platform insights.
• Built property details entry functionality to support structured, accurate listing data capture.

Software Engineer — Outpatient Department Allocation (ODA) - Seroft Solutions - Lahore, Pakistan

(2024-10 - 2025-02)

• Developed a full-stack web application (Java Spring Boot backend, Next.js frontend) enabling psychologists to register, manage patients, and book appointment rooms.
• Designed and implemented RESTful APIs to support dynamic data interaction and system scalability.
• Integrated OAuth2 authentication with role-based access control for secure user management.
• Built admin features to register patients, assign them to psychologists, and allocate rooms on a commission-based model.

Java Developer Intern - Systems Limited - Lahore, Pakistan

(2023-09 - 2023-10)

• Completed a one-month internship mastering Servlets and RESTful APIs for Java (Spring Boot) web applications.
• Developed a web application using Servlets and RESTful APIs to display real-time city information.

B.Sc. - Software Engineering (Major: Software Development, Minor: Quality Assurance) - University of Central Punjab (2020-10 - 2025-02)

Intermediate - Computer Science - Punjab Group of Colleges (2018-03 - 2020-06)