Bangladesh

Back-end

Sayed MD. Fahim Fahad

Software Engineer

Design systems

Java

GrowthDay was a startup. I worked as a backend developer.

Primary responsibility:
- Preparing engineering design document for new feature
- Develop and maintain new and existing features
- Performance optimization
- Improve test coverage (unit and interaction)
- Investigate production issues and fix bugs
- On-call engineering responsibility for the customer support team
- Collaborate with the product team and design team
- R&D on various concepts
	
Mentionable achievements:
- Wrote an image resize lambda that reduced dashboard loading time
- Worked on various notification-related tasks that increased user interactions with our app. Our daily active users (DAU) increased by 5% due to focused push notifications to various users
- Worked on a number of design documents and implemented them 
- Implemented analytics events for all signup and purchase events. It improves visibility into the user’s interaction with the app. It was easy to track upgrades, downgrades, trial conversions, cancellation reasons, etc
- Optimized webhook setup process for the marketing team. It simplifies the webhook setup for the marketing team
- Improved scheduler processing flow by grouping same-frequency events into a single SQS event. It reduced SQS events and reduced the AWS bill
- Worked on the backend portion of the new signup project. It improved performance and increased signup
- Implemented simplified version of the payment flow to improve performance and reduce the complexity of the flow. It increased paid users on GrowthDay
- Implemented auto thumbnail generation for profile images (S3)
- Upgraded backend project Java version to 21 and spring boot version to 3
- Refactored complex service classes to simplify and improve readability
- Was part of the discussion about setting up the on-call engineering process
- Automated common CS issue fixing that reduces on-call engineering time
- Implemented streak achievements for various user activities and managed users from different timezone

Primary responsibility:
- Developed new features and maintained existing ones. Fix any issue raised by QA team.
- Managed team members.
- Collaborated with other team to deliver new features.
- Mentored junior developers.

Mentionable achievements:
- Developed an application from scratch. Designed Rest APIs and prepared API documentation.
- Improved data flow for internal HRMS project. 
- Initiated load test mechanism and improved performance.
- Conducted R&D on several conceptual ideas as a proof of concept

Primary responsibility:
- Developed new features and maintained existing ones. Fix any issue raised by QA team.
- Mentor junior developers.

Mentionable achievements:
- Developed an application from scratch. Designed Rest APIs and prepared API documentation.
- Conducted R&D on several conceptual ideas as a proof of concept

Dmoney is a platform for digital payments. It was a startup. I worked as a backend developer.

Primary responsibility:
- Back-end service development and architecture design.
- Integrated third party apis
- Load testing

Mentionable achievements:
- Managed 6 microservices that were directly involved in payment and notification.
- Performed regular load tests to maintain the system's performance.
- Migrated database for optimizing the payment flow.

- Developed a tool from scratch based on client requirements.
- Created a client application that uses internal data.
- Collaborated within a team and reported to the senior manager for daily updates.

Sayed MD. Fahim Fahad🇧🇩

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