hakimkal

Scaled payment infrastructure to handle ¦2B+ daily transactions with 99.99% uptime using springboot and kubernetes. Designed CI/CD pipelines that cut deployment times by 80% and improved release reliability. Built fault-tolerant flows with RabbitMQ backpressure, reducing downtime incidents by 40%. Mentored 10+ engineers and ops team members, improving delivery velocity and reliability. Introduced automated integration and contract testing using JUnit and Testcontainers. Partnered with executives to align tech roadmap with business goals, supporting 3x revenue growth in 18 months.

Developed tax collection backends for government IGR systems. Part of AWS EC2 Management Team, managing 40+ instances with improved security controls. Implemented asynchronous message processing and event streaming with Kafka. Mentored junior engineers, raising backend code quality and deployment efficiency.

Directed a cross-functional engineering team of 12+ members, delivering 14 enterprise software products that boosted tax revenue generation and citizen data. Implemented Agile transformation across state offices, reducing product development cycles by 40% and accelerating time-to-market for key solutions. Established robust DevOps practices, resulting in a 70% decrease in deployment failures and a 50% reduction in critical incident response times.