SH
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About Me
Hi, I'm Shahadath Hossen Sajib — a backend developer passionate about building clean, scalable, and maintainable systems. I currently work at a service-based company where I develop APIs and backend features using NestJS, Drizzle ORM, Prisma, and PostgreSQL. Starting my journey with the MERN stack, I gradually found my interest in the backend ecosystem — working with databases, designing APIs, and focusing on performance and clean architecture. Outside of work, I'm actively learning advanced NestJS patterns, PostgreSQL internals, and data structures & algorithms to sharpen my problem-solving and system design skills. I also love working on side projects that challenge me and help me grow as a developer. I'm always eager to explore new technologies, improve my craft, and collaborate on meaningful products.
API Design
Creating RESTful APIs for seamless data exchange.
Robust Databases
Crafting optimized schemas and queries for performant data storage.
Security First
Implementing authentication, authorization, and secure API practices.
Collaborative Excellence
Thriving in team environments with clean code and peer reviews.
My Tech Journey
Over the past 1.5 years, I've grown through hands-on experience and real-world projects. Here's a look at some key milestones that shaped my path so far. Always open to exciting opportunities—let's connect!
July 2025 – Present
Back End Developer
Softvence Agency•
Dhaka, Bangladesh · On-site
- Building and maintaining scalable RESTful APIs using NestJS and TypeScript.
- Working with Drizzle ORM and Prisma for efficient, type-safe database access.
- Designing and managing relational schemas in PostgreSQL.
- Collaborating with the frontend team to deliver production-ready features.
- Implementing best practices for code quality, testing, and documentation.
Nov 2024 – Apr 2025
Web Developer
Monster Studio•
Chattogram, Bangladesh · On-site
- Contributed to both frontend and backend development in a large-scale MERN stack project.
- Built reusable components and REST APIs using React.js, Remix, Express.js, Node.js, and MongoDB.
- Managed and configured a large-scale Nx monorepo to optimize modularity and scalability.
- Led a frontend team, facilitating collaboration and improving productivity.
Aug 2024 – Oct 2024
Quality Assurance Intern
Monster Studio•
Chattogram, Bangladesh · On-site
- Wrote comprehensive unit tests for frontend and backend using Jest, Vitest, MSW, and Supertest.
- Explored and experimented with K6 for backend load testing and performance profiling.
- Contributed to improving overall code quality and reliability in a full-stack testing environment.
Technical Skills
I always look forward to continuous learning and improving myself. Here's a snapshot of the tools and technologies I work with.
Languages
JavaScriptTypeScript
Backend
Node.jsExpressNest.js
Databases
MongoDBPostgreSQL
ORMs & ODMs
PrismaDrizzleMongoose
Authentication
JWTOAuth 2
API Testing
JestSupertest
API Documentation
PostmanSwaggerOpenAPI
VCS & CI/CD
GitGitHubGitHub Actions
Containerization
Docker
Package Manager
npmpnpm
Monorepo Tools
NxTurborepo
Dev Tools
PrettierEslintWarpVS Code
Open Source Projects
A collection of my recent backend tools, infrastructure templates, and full-stack experiments.
Latest Blogs
Insights on backend architecture, API design, and modern web development.
Certifications
A collection of professional certifications and courses that have helped me deepen my knowledge and master new technologies.
Next Level Web development
Programming Hero
Issued May 2025
Credential ID: PHL2B4MERNWEB9-10321213
Skills:
MongoDBExpress.jsPostgreSQLNode.jsTypeScriptNext.jsMongoose ODM
In this program, I learned a comprehensive range of technologies, including TypeScript, Node.js, Express, React, Next.js, MongoDB, and Mongoose.
React Testing Library with Jest / Vitest
Udemy
Issued Sep 2024
Credential ID: UC-0ef939de-66dd-421c-993d-b2f7cddae802
Skills:
JestVitestReact Testing LibraryJest
This course helped me learn best practices for testing applications using Vitest and React Testing Library in a test-driven development (TDD) approach.
Quality Assurance
FreeCodeCamp
Issued Aug 2024
Credential ID: fcc4b53621b-923e-4494-a85b-3667294ce6e7
Skills:
MochaChai
This program helped me learn REST API testing using Mocha and Chai.
Complete Web Development Course
Programming Hero
Issued Jun 2024
Skills:
REST APIsJSON Web Token (JWT)React.jsJavaScriptHTML5Tailwind CSSFirebase
This program helped me learn Tailwind CSS, JavaScript, React, REST APIs, and Firebase.
I'm a backend developer passionate about building clean, scalable systems. Here's a bit about my journey and what I bring to the table.