Open to opportunities

Farhan Israk Yen

@farhanisrakyen

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Software engineer specializing in microservices and event-driven systems for high-scale fintech and SaaS.

Bangladesh

Message

What I'm looking for

I’m looking to build and scale microservices and distributed systems, take ownership of architecture and delivery, and improve reliability, deployment speed, and performance in data-heavy fintech/SaaS products.

I’m a Software Engineer with 5+ years of experience designing and operating scalable, high-performance systems across fintech and SaaS. My focus is microservices, event-driven architecture, and distributed systems—delivering production-grade features under high load while improving scalability, deployment efficiency, and engineering velocity.

I’ve led teams and driven architectural decisions, including migrating backend systems to event-driven microservices that improved scalability by 30% and increasing delivery velocity by 20% through better sprint planning. I also build real-time trading and historical data infrastructure, design RabbitMQ-based messaging for fault-tolerant services, and optimize performance with Redis caching, CI/CD improvements, and database tuning.

Experience

Work history, roles, and key accomplishments

Backend Developer

Lerero

Nov 2024 - May 2026 (1 year 6 months)

Designed and deployed scalable microservices for high-traffic applications using Laravel, NestJS, and Golang. Built secure file handling with Cloudflare R2, optimized databases, and reduced latency using Redis and BullMQ for asynchronous processing.

Laravel NestJS Golang Microservices REST APIs Cloudflare R2 MongoDB MySQL Redis BullMQ Asynchronous Agile Delivery Secure File Handling

Backend Team Lead—Software Engineer III

AI Trade, Inc

May 2022 - Oct 2024 (2 years 5 months)

Led a team of 5 engineers, improving delivery velocity through sprint planning and engineering practices, and architected a migration to event-driven microservices to increase scalability. Built real-time trading infrastructure, designed RabbitMQ messaging for decoupled services, and optimized CI/CD to reduce deployment time while establishing code quality standards through reviews and mentorship.

Team Leadership Agile Delivery Sprint Planning Scalability Copy Trading RabbitMQ Messaging Systems CI CD Code Review Mentorship SOLID Dry

Software Engineer II

AI Trade, Inc

Jun 2021 - Apr 2022 (10 months)

Developed high-performance REST APIs for trading systems under heavy load. Reduced downtime by 15% via debugging, monitoring, and performance improvements, and enhanced logging and observability to improve incident response time.

REST APIs Performance Tuning Debugging Monitoring Logging Observability Incident Response Backend Engineering

Assistant Software Engineer

Garnish Technology

Feb 2021 - Jun 2021 (4 months)

Contributed to backend and frontend development across multiple client projects. Improved API performance by 10% through query optimization and assisted with feature delivery and bug fixing in Agile environments.

Backend Development Frontend Development API Performance Query Optimization Agile