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Md Mosfikur Rahman

@mdmosfikurrahman

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Engineering Team Lead at Akij iBOS who took an OTA platform from an empty repository to three live client deployments.

Bangladesh

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At Akij iBOS Ltd., I architected a multi-tenant OTA booking platform of eight .NET 9 microservices, taking it from an empty repository to three live white-label client deployments serving 742 B2B agency accounts and 1,000+ bookings per month. I designed flight-search aggregation across 11 supplier and GDS connectors, streaming results so the first fares appeared in about four seconds.

I also owned the architecture of TrackForce, a real-time employee-activity monitoring platform for 500+ employees. Before Akij iBOS, I delivered modules for the National Board of Revenue’s Customs Bond Management System at REVE Systems Ltd. and shipped a GraphQL Backend-for-Frontend for Rakuten e-commerce modules at BJIT Group.

Experience

Work history, roles, and key accomplishments

Current

Engineering Team Lead (Software Engineer L-II)

Current

Akij iBOS Ltd.

Nov 2024 - Present (1 year 11 months)

Architected a multi-tenant OTA booking platform of 8 .NET 9 microservices, leading a team of 10 and bringing it to 3 live white-label client deployments. Designed flight-search aggregation over gRPC to 11 suppliers and built observability and employee-activity monitoring platforms.

.NET9 Microservices gRPC Server Sent Events Azure AWS Cloudflare Domain Driven Design Team Leadership Observability

Software Engineer

REVE Systems Ltd.

Jul 2023 - Oct 2024 (1 year 3 months)

Delivered Legal Case and Utilization Declaration modules for the National Board of Revenue's Customs Bond Management System in Java, Spring Boot, and Oracle. Improved system throughput by 25% through query tuning and built compliance sync with OAuth2 and Spring Security.

Java Spring Boot Oracle OAuth Spring Security Query Tuning Data Optimization

Software Engineer, Backend

BJIT Group

Apr 2022 - Jun 2023 (1 year 2 months)

Shipped a GraphQL Backend-for-Frontend unifying multiple backend services for Rakuten e-commerce modules. Cut nested-query latency through resolver batching and schema stitching, and contributed reusable backend service patterns.

GraphQL Backend For Frontend (BFF)Resolver Schema Stitching Backend Services