Backend-focused · Java / Spring Boot / Reactive · Angular · OSINT, Digital Forensics & Financial Crime (AML)
I build secure fintech systems — non-blocking microservices on Spring WebFlux and Project Reactor over gRPC, RabbitMQ and PostgreSQL, with Angular front ends. I also investigate cyber crime, which means I see how payment and identity systems get abused, not only how they are built.
I'm a backend engineer in Dhaka, Bangladesh, 4 Years 11 Months into building server-side systems in Java and Spring Boot.
Most of that is microservices: non-blocking handling with Spring WebFlux and Project Reactor, gRPC between services, RabbitMQ for async work, PostgreSQL versioned with Liquibase, and Keycloak behind Kong.
I've shipped in remittance, healthcare, insurance and education — usually owning a service from schema design through Docker deployment.
Alongside that I work as a cyber crime investigator, supporting victims of financial and online fraud with OSINT, log analysis and digital forensics. The two feed each other: building payment systems is easier when you have seen how they are attacked.
Backing the Cyber Crime Investigator work in professional experience.
01 October 2026 – Present · Rome, Italy / Dhaka, Bangladesh
Backend Developer
Cross-border remittance and payment platform handling multi-currency transactions, live exchange rates, KYC and AML screening, and automated bank payouts.
01 September 2026 – Present · 1 Month · Dhaka, Bangladesh
Cyber Crime Investigator
Volunteer
Case details, clients and victims are never disclosed. All work is lawful and authorised.
15 October 2025 – 15 October 2026 · 1 Year · Dhaka, Bangladesh
Java Developer
Built the complete hospital operating platform end to end — patient admissions, electronic medical records, clinical appointments, laboratory orders and multi-department billing, across every module rather than one.
HR attendance and workforce management solution tracking employee shift rosters, biometric clock-ins, leave allocations, and payroll readiness.
03 October 2021 – 14 October 2025 · 4 Years · Dhaka, Bangladesh
Software Developer
High-throughput enterprise SMS messaging platform enabling programmatic bulk dispatch, queue-managed delivery, and carrier status webhooks.
Digital insurance lifecycle platform automating policy quotation, underwriting workflows, customer policy management, and claim settlement.
Comprehensive school management ERP handling student lifecycle, biometric attendance capture, exam grading, fee collection, and official academic records.
Multi-location inventory tracking system facilitating warehouse stock audits, purchase orders, reorder point alerts, and supplier logistics.
Centralized enterprise issue tracking and support desk platform with multi-tier ticket escalation, SLA monitoring, and automated assignment rules.
Corporate manufacturing web presence and dealer portal presenting product specifications, mill test certifications, and structured RFQ inquiries.
Production systems built across fintech, healthcare, insurance, education and enterprise messaging — each one delivered in a professional role listed under professional experience.
Cross-border remittance and payment platform handling multi-currency transactions, live exchange rates, KYC and AML screening, and automated bank payouts.
Technologies
Built the complete hospital operating platform end to end — patient admissions, electronic medical records, clinical appointments, laboratory orders and multi-department billing, across every module rather than one.
Technologies
HR attendance and workforce management solution tracking employee shift rosters, biometric clock-ins, leave allocations, and payroll readiness.
Technologies
High-throughput enterprise SMS messaging platform enabling programmatic bulk dispatch, queue-managed delivery, and carrier status webhooks.
Technologies
Digital insurance lifecycle platform automating policy quotation, underwriting workflows, customer policy management, and claim settlement.
Technologies
Comprehensive school management ERP handling student lifecycle, biometric attendance capture, exam grading, fee collection, and official academic records.
Technologies
Multi-location inventory tracking system facilitating warehouse stock audits, purchase orders, reorder point alerts, and supplier logistics.
Technologies
Centralized enterprise issue tracking and support desk platform with multi-tier ticket escalation, SLA monitoring, and automated assignment rules.
Technologies
Corporate manufacturing web presence and dealer portal presenting product specifications, mill test certifications, and structured RFQ inquiries.
Technologies
Things I build outside work — smaller, and entirely my own decisions.
Have a backend system to design, a service to scale, or a role you think fits?
Tell me about it.
Investigation support Get in touch about a cyber crime matter Lawful and authorised cases only.