AI & full-stack engineering
Building AI applications from interface to infrastructure.
I’m a software engineer at AIZOTH in Tsukuba, Japan. I develop AI agents and document-based AI features, backed by Python services, Flutter interfaces, and Google Cloud. My work combines AI integration with a foundation in backend and full-stack engineering built since 2020.
Professional profile
Experience with APIs, authentication, database performance, and web applications across roles in Bangladesh and Japan.
Explore my experienceAt AIZOTH, I develop LLM integrations, AI agents, and retrieval-augmented generation (RAG), alongside the services that support them.
Explore technical expertiseBengali · Native; English · Full professional proficiency; Japanese · Professional working proficiency
Discuss an opportunityA Japanese learning application exploring adaptive study scheduling, application architecture, and consistent progress tracking.
01Personal application · In development / 2026
A Flutter learning application with adaptive review scheduling, vocabulary and kanji study, and transactional progress tracking in Firestore. An ongoing personal project.
Read case study
Architecture overview
Technical capabilities developed through AI application work and earlier backend and full-stack roles.
Developing Flutter web interfaces and connecting user interactions to backend services, with earlier experience in Angular and data visualization.
Current: Flutter, Dart, JavaScript, TypeScript
Earlier roles: Angular, D3.js
Designing REST APIs and application logic with Python and FastAPI, supported by experience in authentication, integrations, and backend frameworks.
Current: Python, FastAPI, REST APIs
Earlier roles: Django, Flask, Laravel, Ruby on Rails
Integrating language models into application features, developing AI agents, and implementing RAG for responses grounded in specific documents.
Current: LLM integration, AI agents, Agentic workflows, RAG, LLM coding agents
Deploying and operating services on Google Cloud, with earlier experience on AWS and DigitalOcean.
Current: Google Cloud, Cloud Run, Vertex AI, Compute Engine, Cloud Build, Docker, Linux
Earlier roles: AWS, DigitalOcean
Working with relational and document databases, optimizing queries, and using caching to improve application performance.
Earlier roles: PostgreSQL, MySQL, MongoDB, Redis
Jul 2025 – Present
Current role
Tsukuba, Japan
Developing AI application features across the stack, from document-grounded retrieval and agent workflows to backend services, web interfaces, and cloud deployment.
Mar 2024 – Jun 2025
1 yr 4 mos
Miyazaki, Japan
Developed Laravel and Ruby on Rails applications, with responsibility for REST APIs, multi-factor authentication, database performance, and deployment on AWS and Linux.
Mar 2023 – Sep 2023
7 mos
Dhaka, Bangladesh, professional training program
Professional training for engineers preparing to work in Japan: Japanese language and business etiquette, software engineering fundamentals, and hands-on outsourced development work.
Oct 2020 – Feb 2023
2 yrs 5 mos
Dhaka, Bangladesh
Built web platforms for virtual internships, e-learning, workshops and clinical data management, with REST APIs, authentication, data visualization and scraping.
How this site is built: a Next.js static export served from Firebase Hosting, with URLs, caching and SEO metadata that agree with each other.
Full-Stack Development, 4 min read
Engineering opportunities · Collaboration · Technical discussions
For engineering opportunities, collaboration, or a technical discussion, reach out by email or LinkedIn. Include a brief introduction and the role, project, or question you have in mind.
tanvirahamedksejp@gmail.com