Ali Ahmad

(Jeeny is the middle-eastern fastest-growing ride-hailing service offering transportation, integrated wallet top-ups, and mobility) • Migrated the legacy promotion microservice from PHP to Java/Spring Boot enhancing the processing of a million file records in under 1 second by utilizing Stream API, Java Concurrency, and MongoDB for data storage and retrieval. • Improved payment microservice API response time by 80% by analyzing and optimizing database queries with minimal indexing. • Developed a log rotation mechanism for rolling log files exceeding 20MB and persisted the older files with timestamp and file index.

Linxa (A wholesale telecom management solution enabling operators to solve challenges in the Voice and SMS domains efficiently) • Worked on system secrets encryption and user password hashing using BCrypt and successfully migrated the legacy encryption approach with Advanced Encryption Standard impacting 20+ tenants across various timezones. • Developed and delivered an automated scheduled report for a telecom client with over 1 million users utilizing MySql and JDBC. Sprocket (A solution for sales managers to quickly analyze data, draw insights, and build accurate sales strategies and forecasts in advance) • Enhanced the performance of a critical API endpoint using Java Concurrency APIs and database indexing, reducing response time by 80%. • Integrated AWS SES for notifying admin via email of any exception that occurred during the batch processing of the CSV dataset. • Introduced a preprocessing module responsible for scanning the CSV dataset during the batch process for any anomalies and crafted an email notification enlisting the error summary and a pre-signed URL from the S3 bucket for faulty files containing error details. • Improved user experience by developing Rest APIs supporting data filtering and exporting capabilities in the CSV format and provided support by improving the system's performance, investigating, and fixing bugs/issues. • Proposed and developed an in-app asynchronous notification mechanism utilizing AWS SQS, WebSockets, Rest APIs and integrated the notification API on the client side using React. Gigamatic (A platform empowering gig workers and the gig economy to have a consolidated view of gigs, financial and tax information) • Introduced a stateful JWT-based user authentication and authorization flow using Spring Security, MySQL, and Redis for session storage.

Khoji for Agile (SaaS product delivering analytics on agile projects, increasing transparency, identifying bottlenecks, and reducing costs) • Integrated Better Stack Uptime as an observability solution utilizing both push and pull integration models and automated its integration with the deployment stack seamlessly using Bash Scripting. • Fixed the logstash data pipeline failure to dump events into Elastic Seach and utilized Kibana for building visualization for meaningful insights around failed data events. • Led a team of 10+ junior engineers, providing training, product tech stack guidance, and actively participating in code reviews.