Ferdousul Haque

Digital Solutions and Services Lead Engineer

Banglalink Digital Communications Ltd.•  June 2022 - Present•  Dhaka, BD

Lead Software Engineer for the Survey application (CFL) for taking the feedbacks from customers smoothly over the digital channels e.g. myBL, Toffee, Website. Saved the company of about 2 Cr BDT annual cost and developed the full resilient solution in-house. Development Lead for Corporate B2B Self Service Portal serving 11K B2B Companies with 90 Features and 50K transactions daily. Payment and Sim Replacement is notable. Development Lead for the Core Telecom API Gateway [Spring Boot Stack]. It serves the flagship mobile app myBL. Contributed to architecture resiliency and awarded as zero downtime platform. Introduced CI/CD with Jenkins for all Projects and reduced deployment up to 40%. Developed B2B Invoice Auto Delivery application, saved 75 Lac BDT of the company cost. Introduced centralized application logging with Grafana, Loki and Promtail similar to ELK. As a code reviewer, I helped the team to avoid common pitfalls and write scalable codes.

Lead Software Engineer

Portonics Ltd•  May 2018 - May 2022•  Dhaka, BD

Former Tech Lead for Telenor DTAC [Thailand] mobile app with a team of 12+ SWEs. Former Tech Lead for Telenor Myanmar mobile app and built the application over docker. Promoted twice in the organization for high performance and proactiveness. Integrated CI/CD with Jenkins and also AWS Pipeline to deploy over managed K8S. Developed a notification service using ExpressJS and RabbitMQ for Telenor Myanmar to serve up to 300 TPS and asynchronous processing. Optimized Telenor Myanmar mobile application to handle 3M Daily pack purchase. Developed 30+ large scale telco app features of various types and handled corner cases.