Seemanta Sarker
Seemanta Sarker

Full-Stack Developer

Actively looking · Member since 10 Aug 2026
Message
Location
Khulna, Bangladesh
Desired salary
Unspecified
Work preference
Remote Only / Full Time, Part Time, Contract, Freelance
Experience level
Junior

About

Professional summary

I am a self-taught full-stack developer with more than five years of experience building scalable SaaS platforms, data-driven web applications, automation tools, and developer-focused products.

I specialize in Next.js, React, TypeScript, Tailwind CSS, and the MERN stack, with practical experience across frontend development, backend services, authentication, databases, APIs, and cloud deployment.

I also work with Python, Bash, and C++ for automation, system tooling, language development, and performance-focused programming. My projects include bytecode interpreters, custom scripting tools, secure APIs, and Linux privacy utilities.

I enjoy designing clean, reusable interfaces and building products that are practical, fast, and maintainable. I have integrated AI models such as GPT, Gemini, and DeepSeek into web-based applications and SaaS prototypes.

I am passionate about open source, system optimization, developer tooling, network privacy, and future-focused frameworks. I continuously learn through hands-on project work, hackathons, and experimentation with Linux systems and programming language design.

Skills

29 capabilities

Tech stack & tools

Working toolkit

Experience

Career history

Full-Stack Developer Combinator X

Built a high-performance combinator engine capable of generating approximately one million to ten million unique string combinations within a minute.

Developed a GUI-based application with accounts, dashboards, and history tracking. Implemented recursive algorithms, chunk-based I/O streaming, memory-safe buffers, stream-based zipping, and Vercel-hosted optimized server execution with caching.

Full-Stack Developer Cloudlet

Built an all-in-one smart business management platform for automating invoices, sales tracking, investments, and EMI updates.

Used React, Firebase, and Tailwind CSS to deliver authentication, real-time updates, and scalable reusable user interface components with shadcn/ui.

C++ Language Developer Uplang

Developed a high-performance programming language in C++20 with a compiler pipeline that emits flattened bytecode and a stack-based virtual machine interpreter.

Implemented a zero-copy token-generation lexer, bytecode generation, cross-platform execution, memory-efficient architecture, and support for complex algorithms with low resource requirements.

JavaScript Language Developer Fly JS

Developing a JavaScript-based custom scripting interpreter and DSL generator for web applications, web games, and cloud-based systems.

The project produces pure JavaScript output for seamless client-side or server-side integration, avoids runtime installation requirements, supports TypeScript, and is designed to include only the code required by a project.

Backend Developer IDLETOKENIZER API

Created a custom API for tokenizing and encrypting strings with optional salting and secure decoding.

Implemented layered Base64-based encoding, randomized tokens, REST endpoints with JSON responses, and secure token mapping for predictable but safe decryption.

Architect Open-Source UI Framework

Designing an interactive UI framework that enables developers to create custom components through a dashboard and export ready-to-use React code.

The framework is intended to reduce reliance on pre-built UI libraries by supporting personalized, license-free component generation.

Creator Nightmare

Created a Linux anonymity and security tool focused on improving online privacy and reducing exposure to trackers, malicious links, cookies, censorship, and network vulnerabilities.

Built modular protections using Bash, Python, Systemd, Tor, custom firewalls, MAC address randomization, DNS leak prevention, and a Debian package distribution workflow.

Front-End Developer IDLECODERS

Built a dynamic developer portfolio platform with authenticated profiles and personalized data storage.

Used Next.js, Firebase, and Tailwind CSS while optimizing site performance, scalability, and SEO.

Full-Stack Developer Web Watcher

Developing a website management dashboard for organizing, monitoring, and authenticating access to multiple websites.

The application uses a modular MERN architecture, MongoDB integration, session-based authentication, and a custom retro-style interface.

Developer Shadow Walker

Built an experimental Linux networking and WiFi security learning project using Bash and Python.

Implemented WiFi monitoring and handshake capture in monitor mode while exploring packet analysis and Linux network security concepts.

Education

Learning history

Self-Taught Learning

Self-Taught Developer, Full-Stack Development and System Programming

Learned full-stack development and system programming through self-study, online resources, and project-based learning. Transitioned into software development from a science background including HSC and Physiotherapy studies.

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