Sadman Sobhan

Senior Backend Engineer & Technical Lead

Bangladesh

Professional Summary

Last updated: August 2026

Senior Backend Engineer with 9+ years of experience designing secure, scalable backend platforms across government, healthcare, education, and enterprise domains. Specialized in Java, Spring Boot, PostgreSQL, distributed systems, REST APIs, backend architecture, and performance optimization.

Led backend delivery activities within a 30-person development team.
Contributed to an election platform comprising nearly 25 services and supporting approximately 50,000 users.
Reduced exam-management response time by 30% through Redis caching and backend improvements.
Co-authored two peer-reviewed research publications.

Career Timeline

August 2023 – Present

Senior Software Engineer

Penta Global Ltd.

Lead backend engineering for an Election Management System across a 30-person team — task allocation, API contract design, nomination lifecycle and reporting service ownership, RabbitMQ integration, Keycloak-based authorization, and CI/CD deployment support on a self-managed Kubernetes data center.

January 2022 – July 2023

Software Engineer

Dynamic Solution Innovators Ltd.

Led development of a production exam management system using Java, Spring Boot, and PostgreSQL. Reduced system response time by 30% via Redis caching. System served 2,500+ administrators, 1,000 exam invigilators, and supported registration for nearly 30,000 students.

October 2016 – December 2021

Java Software Engineer

Dohatec New Media

Contributed to the National Electronic Government Procurement System — feature development, bug fixing, requirement analysis, large-file upload workflows, relational data modeling, and stakeholder-aligned delivery.

February 2016 – June 2016

.NET Developer

Jaliks Soft IT Limited

Implemented features and resolved bugs in a large-scale education application using ASP.NET and C#. Maintained SQL Server databases including stored procedures, triggers, and views.