AR Sahak

Full Stack Developer

Profile

Full Stack Developer with 4+ years of experience building production-grade SaaS platforms and Web3/DApp solutions. Strong across React, Next.js, Node.js, and Python with FastAPI — designing async APIs, microservices, and LLM-powered backends backed by PostgreSQL, MongoDB, and Redis. Deployed on AWS and DigitalOcean. Focused on scalable architecture.

Employment

01/24 – Present

Software Engineer

Bayshore Communication · Aftab Nagar, Dhaka

Lead full-stack delivery for SaaS, Web3/DApp, and AI-driven products. Architect features using React, Next.js, Node.js, and Python/FastAPI — with REST/GraphQL APIs backed by PostgreSQL, MongoDB, and Redis. Mentor engineers, lead code reviews. Delivered an AI chatbot platform on a clean architecture, with deployments on AWS and DigitalOcean.

01/22 – 12/23

Junior Software Engineer

IT Bangla Ltd · 32 Topkhana Rd, Puran Paltan, Dhaka

Developed and maintained production web applications and REST/GraphQL APIs across the React and Python/FastAPI stack, including an online trading platform. Owned features end-to-end — from UI to API to deployment — and contributed to bug fixes, performance tuning, and code-quality improvements as a core team contributor.

Professional Skills

Programming Languages

JavaScript (ES6+), TypeScript, Python, C++, Java

Frontend

HTML5, CSS3, Tailwind CSS, Bootstrap · React.js, Next.js (SSR/ISR/CSR), React Native · Redux Toolkit, Zustand, TanStack Query · Shadcn/UI, Material UI, Ant Design, Framer Motion · React Hook Form, Axios, Auth.js · GraphQL (Apollo), Socket.io, PWA, Web Workers · Web Security (HTTPS, Cookies, CORS, CSRF, XSS) · ethers.js, wagmi, RainbowKit · Jest, Cypress, Playwright

Backend

Node.js, FastAPI, Django · REST, GraphQL · PostgreSQL, MongoDB, Redis · JWT, OAuth 2.0, Pydantic · Microservices, Celery · Generative AI, LLMs, RAG (LangChain, LangGraph, Vector DBs) · PyTorch, TensorFlow, Scikit-learn, Hugging Face · Pandas, NumPy, SQLAlchemy

DevOps & Cloud

AWS (EC2, S3, RDS, Lambda, ECS, CloudWatch), DigitalOcean, Vercel · Docker, Kubernetes, Helm, Nginx · GitHub Actions, CI/CD Pipelines, Terraform · Git, Linux Server Administration · SSL/TLS, Cloudflare, DNS Configuration · Prometheus, Grafana

Education

09/18 – 06/22

B.Sc. in Computer Science & Engineering

Jiangsu University of Science & Technology, Jiangsu, CN

Graduated with CGPA 3.03 / 4.00. Coursework spanned algorithms, data structures, object-oriented programming, database systems, software engineering, operating systems, computer architecture — with team projects in C++, Java, and Python.

06/14 – 06/18

Diploma in Computer Engineering

Dinajpur Polytechnic Institute, Dinajpur, BD

Completed 4-year diploma with CGPA 3.46 / 4.00. Coursework covered digital electronics, microprocessors, computer hardware, networking, operating systems, and programming fundamentals in C and C++ — laying strong foundations in software development.

Soft Skills

Innovative
Teamwork
Creative
Critical Thinking
Fast Learner