Muhammad Safwan Paramban

Cloud-native, microservices-based platform providing real-time rating and charging for CSPs and enterprises, designed for high scalability and carrier-grade performance, supporting millions of subscribers globally. Delivered real-time charging features for Tier-1 telecom clients (Vodafone EU, Verizon, 2degrees) on Nokia's Converged Charging Platform, supporting millions of subscribers.

Designed and implemented the Recharge Microservice, processing millions of recharge requests per day with near-zero latency under strict SLA requirements. Implemented Diameter-based charging mechanisms and optimized rating rules, improving charging accuracy and processing efficiency. Enhanced EDR/CDR pipelines with new parameters for billing and analytics, maintaining high throughput and backward compatibility. Built and optimized Spring Boot microservices (Recharge, TMF), handling thousands of TPS during peak traffic.

Acted as technical lead within Scrum team, contributing to production stability (>99.99%), code reviews, and performance tuning.

Unified capital planning software platform for modeling multi-year capitalplans, centralizing asset and facility data, and optimizing budget and maintenance decisions.

Worked on VFA Facility, an enterprise asset management platform built on Java and Spring, contributing to both backend services and frontend UI using JSP, ExtJS, JavaScript, and CSS, supporting hundreds of enterprise customers managing large asset portfolios. Delivered new end-to-end features across the application stack, coordinating backend logic and UI changes, and contributing to faster feature rollout cycles for customer-driven requirements. Identified and fixed critical security vulnerabilities, including SQL injection and access-control issues, significantly reducing security findings in internal and customer audits.

Designed and implemented new and enhanced UI components, improving usability and responsiveness, and reducing average page load times by ~25–35% in frequently used screens.

Resolved numerous high-priority production bugs, including issues impacting core asset management workflows, contributing to a ~30% reduction in recurring production issues.

Played a key role in the integration of VFA Facility with KyCloud, enabling customers to use features across both products through RESTful APIs, supporting cross-product workflows for shared enterprise clients.

A browser-based platform designed for law enforcement personnel to document, log, and analyze evidence and intelligence related to criminal investigations. Provides secure information sharing across organizations and multiple analytical views of crime data, improving the ability to gather,

analyze, and act on critical information.

Developed end-to-end features for a law-enforcement intelligence and case management system using Java, Spring, and REST APIs, with JSP/JSTL on the frontend, supporting 1 K+ active users.

Delivered product enhancements aligned with requirements and schedules, addressing development, troubleshooting, and production issues across multiple environments.

Debugged and resolved production issues across frontend and backend, improving system stability and reducing incident turnaround time by ~40%.

Developed and optimized API integrations and service-layer components, ensuring consistent data flow between presentation and backend layers.