Open to opportunities

Abu Sayad Hussain

@abusayadhussain

Message

I am a senior software engineer building cloud-native backends with Node.js, TypeScript, and AWS.

Bangladesh

Message

What I'm looking for

I seek a remote-first or hybrid role building cloud-native backend platforms, driving automation/DevOps, improving platform reliability, mentoring engineers, and working with global teams in a high-ownership, fast-paced environment.

I am a Senior Software Engineer with 5+ years designing and operating cloud-native backend systems using Node.js, TypeScript, NestJS, AWS, and Terraform. I focus on scalable, event-driven microservices, CI/CD automation, and platform-level improvements while mentoring junior engineers.

I've reduced deployment errors by 40%, improved system throughput by 35%, and cut API response times by 50% through performance tuning and infrastructure automation. I thrive in remote-first, cross-cultural teams and prioritize reliability, developer productivity, and measurable impact.

Experience

Work history, roles, and key accomplishments

Current

Software Engineer (Grade E1)

Current

Apsis Solutions Ltd

Oct 2024 - Present (10 months)

Designed and built modular backend services with NestJS and PostgreSQL, deployed on AWS via Terraform and Docker, and reduced deployment errors by 40% through automated infrastructure provisioning and environment consistency checks. Mentored junior engineers and streamlined CI/CD to improve deployment reliability.

TypeScript NestJS PostgreSQL AWS Terraform Docker GitHub Actions)

Software Development Engineer II

Craftsmen

Apr 2022 - Sep 2024 (2 years 5 months)

Led backend development of a real-time video CMS supporting 1,000+ concurrent users using GraphQL, AWS Lambda, Redis, and Kafka; improved system throughput by 35% through optimized event handling and query tuning.

GraphQL AWS Lambda Kafka Redis Terraform Docker Datadog)

Software Engineer

Evaly

Dec 2020 - Mar 2022 (1 year 3 months)

Developed transactional order APIs and real-time tracking with WebSockets and RabbitMQ, integrating Redis caching to boost performance and reduce average API response time by 50%.

RabbitMQ WebSockets Redis PostgreSQL Performance Tuning Caching REST APIs

Software Engineer

TopOfStack Software

Aug 2019 - Nov 2020 (1 year 3 months)

Delivered full-stack features using React, Express, and PostgreSQL for multiple client projects and ensured timely feature delivery through Agile sprints.

React PostgreSQL JavaScript REST APIs Agile Git