Freelance Software Test Engineer and AI Full-Stack Developer specializing in manual testing, Playwright automation, and rapid application development using modern AI tools. Passionate about delivering high-quality, scalable, and user-focused software solutions.
I am an Software Test Engineer, AI Full-Stack Developer, and Machine Learning Engineer with strong experience in software engineering, AI systems, research, and automation. I enjoy transforming ideas into production-ready applications while ensuring software quality through rigorous testing and automation.
Playwright, Pytest, API & cross-browser automation with CI/CD integration.
Production-grade MERN, Next.js, and SaaS applications with clean architecture.
Deep learning, computer vision, NLP, and LLM-powered systems delivered end-to-end.
14+ peer-reviewed papers, journal reviewer, applied ML research.
From AI MVPs to production-grade test automation — pick a service or combine them into a full engagement.
Building intelligent systems, scalable applications, and quality software through modern technologies.
Live radar across the six core competencies.
Frameworks, languages and platforms I ship with — filter by category to explore.
A timeline showcasing my professional growth across software testing, AI research, industrial training, and engineering innovation.
Working on manual testing, test case design, bug reporting, regression testing, and quality assurance processes for modern software applications.
Working on manual testing, test case design, bug reporting, regression testing, and quality assurance processes for modern software applications.
Satellite Image Classification Based on an Improved Lightweight Deep-Learning Model.
Satellite Image Classification Based on an Improved Lightweight Deep-Learning Model.
Freq-AFFNet: Frequency-Time Aware Separable Convolutions and FPN with Adaptive Multi-Scale Fusion and Explainable AI for Incipient Induction Motor Fault Diagnosis from Acoustic Mel-Spectrograms.
Freq-AFFNet: Frequency-Time Aware Separable Convolutions and FPN with Adaptive Multi-Scale Fusion and Explainable AI for Incipient Induction Motor Fault Diagnosis from Acoustic Mel-Spectrograms.
Internal workshops, training sessions, and applied AI research.
Internal workshops, training sessions, and applied AI research.
Hands-on exposure to manufacturing data, ECU loading procedures, and engine model workflows.
Hands-on exposure to manufacturing data, ECU loading procedures, and engine model workflows.
Formal education that grounds my work in engineering fundamentals and applied research.
A selection of production apps, automation frameworks, and research prototypes.
Custom Bengali-language LMS for learning programming from scratch. Full-stack site built with Next.js and Supabase, featuring courses, lessons, and auth. Ships with a dedicated Playwright-in-Python automated testing framework for end-to-end quality coverage.
Production-grade course marketplace and learning management system. Students discover courses, purchase via UddoktaPay checkout, complete structured lessons, earn verifiable certificates, and leave reviews. Admins manage courses, curriculum, orders, and content from a first-class admin console. Ships with a Playwright automation testing suite.
Full-stack system of record for web design agencies: projects, tasks, time tracking, budgets & margins, invoicing, deliverables with client approval, role-based access control, multi-factor authentication, audit logging, global search, and analytics — all in a single application.
Complex, fully functional e-commerce platform for electronics and robotics components in Bangladesh. Features an admin dashboard, advanced product catalog, live chat, UddoktaPay payment gateway, Facebook Pixel, advanced order management, coupon management, Steadfast courier integration, and a fraud checker for secure transactions.
Fully functional education technology platform with course catalog, product showcase, real-time chat, user & admin authentication, role-based dashboards, and integrated payment gateway. Built for live online learning operations end-to-end.
Complex, fully functional pharmacy e-commerce platform with product showcase, cart, user & admin login, order tracking, live chat support, and payment gateway integration. Bilingual Bengali UI built for real-world retail operations.
Single-product landing page for an organic Muringa health supplement. Bengali customer UI with streamlined COD checkout, plus a separate English admin panel to manage orders and product variations.
Premium DTC landing page for an orthopedic memory-foam pet bed. Conversion-focused storytelling, sizing guide, social proof, and animated product showcase for dogs and cats.
Premium wellness landing page for a six-herb immunity blend supporting daily energy and wellness. Ingredient deep-dives, benefits grid, and trust-building testimonial blocks.
14+ peer-reviewed papers across IEEE, Springer, and Taylor & Francis.
A. Chowdhury et al.
Undergraduate Thesis — Submitted to a Q1 Journal · 2025
A. Chowdhury et al.
Submitted to a Journal · 2025
A. Chowdhury et al.
Proceedings of IEEE · 2024
Delivered invited presentation at the International Conference on Artificial Intelligence and Mechatronics.
Secured champion position in national business case competition organized by IEEE CUET Student Branch.
Developed 'Pawme', a mobile platform for pet adoption and animal care.
National robotics and mechatronics innovation competition.
National competition organized by Research Lab Chattogram.
One of the top teams among hundreds of participants at Dhaka University.
Recognized for outstanding event management and leadership.
Conducted training sessions on AI applications and career development at IET, CUET.
From Stanford, DeepLearning.AI, IBM, Google, AWS and more.
Coursera, Stanford, DeepLearning.AI, IBM, Google, AWS.
Coursera, Stanford, DeepLearning.AI, IBM, Google, AWS.
Coursera, Stanford, DeepLearning.AI, IBM, Google, AWS.
Coursera, Stanford, DeepLearning.AI, IBM, Google, AWS.
Coursera, Stanford, DeepLearning.AI, IBM, Google, AWS.
Coursera, Stanford, DeepLearning.AI, IBM, Google, AWS.
“Avijit delivered our AI MVP ahead of schedule with code quality that would make a senior team proud. Exceptional communication.”
“His Playwright test framework cut our regression cycle from days to hours. A true automation expert with a product mindset.”
“Brilliant ML engineer. Took a vague computer-vision idea, shipped a research-grade prototype, and explained every decision.”
Open to freelance, full-time roles, and PhD research opportunities.
Reach out for project work, collaborations or research conversations.
Typical response time within 24 hours.