Tajbir Hossain

About

Building reliable systems for real clients

Full-Stack Software Engineer with 5+ years building production systems for international clients. Primary strength in backend development: Node.js, Express.js, TypeScript, PostgreSQL, Prisma, REST API design, Redis, BullMQ, and Docker.

Seeking a remote full-stack or backend role at a product company.

Experience

Independent Full-Stack Software Engineer

Self-employed · Fiverr (Level 2 Seller) · May 2020 – Present

  • Delivered 100+ client projects across SaaS, APIs, and mobile apps for US, UK, and EU clients via Fiverr.
  • Built production REST APIs with Node.js, Express.js, PostgreSQL, MongoDB, and Prisma — JWT authentication, RBAC, and multi-step business workflows for client SaaS products.
  • Standardized deployments with Docker across multiple client projects, eliminating recurring environment mismatch issues reported during handoffs.
  • Implemented high-volume data exports with Node.js streams on Absolute Market Research, avoiding memory spikes during large report generation.
  • Owned full delivery cycles independently: requirements, architecture, implementation, deployment, and post-launch support in async remote settings.

Frontend Web Developer

Tortoiz Themes (part-time, concurrent) · January 2021 – December 2021

  • Built commercial React templates for ThemeForest with reusable components and cross-browser compatibility.
  • Improved render performance on low-end devices, supporting sustained sales and positive customer ratings.

Education

SK National University

2023 – Present (expected 2027)

Bachelor of Arts — Political Science

Languages

  • EnglishProfessional working proficiency
  • BanglaNative