Cloud & Full-Stack Developer | AWS re/Start Trainee | BCA (Hons) · CGPA 9.40
Building scalable, event-driven, cloud-native applications · Habra, West Bengal, India
I'm Rahul Biswas — a cloud and full-stack developer with hands-on experience across AWS infrastructure, serverless architecture, and MERN/full-stack web development.
On the cloud side, I've worked extensively within the AWS re/Start program — provisioning EC2 instances with launch templates and AMIs, designing VPCs with public/private subnets, NACLs, and route tables, deploying multi-AZ RDS Aurora clusters, migrating databases via AWS DMS, and authoring YAML/JSON CloudFormation templates for full-stack infrastructure provisioning. I've also built event-driven serverless applications using Lambda + API Gateway, configured Auto Scaling groups with ELB and Route 53 failover routing, and monitored infrastructure through CloudWatch alarms and CloudTrail audit logs.
On the dev side, I've shipped production-style full-stack applications including a production-grade REST API built on the Controller-Service-Repository pattern with idempotent payments and cursor pagination, QuickForm (a SaaS-style drag-and-drop form builder with BullMQ + Redis async email queues), PortfolioEcosystem (a full CMS platform with JWT auth, Redis caching, and Cloudinary uploads), EasyPetPuja (a canteen booking system with Razorpay integration), and QuickChat (a multi-threaded Java TCP chat server tested to 50+ concurrent connections). More recently, I've gone deeper into systems programming, building CShell (a Unix shell written from scratch in C) and libdsc (a from-scratch C data structures library tested with Valgrind).
Currently exploring Generative AI on AWS — SageMaker, Bedrock, and Prompt Engineering. Actively preparing for AWS Certified Solutions Architect – Associate (SAA-C03). Comfortable in Linux, Bash scripting, Git, and REST API design.
- 🎓 BCA (Honours) at Brainware University — CGPA 9.40 / 10
- ☁️ 30+ hands-on AWS labs — EC2, S3, Lambda, RDS, VPC, CloudFormation & more
- 📫 rahulbiswas006677@gmail.com
- 💼 Open to Cloud, DevOps, or Full-Stack internships / fresher roles
- 🌱 Currently learning: Terraform · Docker · Kubernetes basics
Cloud (AWS)
Languages
Web & Databases
DevOps & Tools
Data & ML
| Project | Description | Stack | Status |
|---|---|---|---|
| 🔗 CShell | Unix shell written from scratch in C — supports piping, I/O redirection, background jobs & built-in commands, no external shell dependencies | C · Unix · System Programming · Makefile | 🟢 Active |
| 🔗 libdsc | From-scratch C library implementing linked lists, stacks, queues, BSTs & a chained hash table, tested with Valgrind | C · Data Structures · Hash Table · Valgrind | 🟢 Active |
| 🔗 ProductionReadyNodeAPI | Production-ready REST API with CSR architecture, idempotent payments, cursor pagination & Prisma/PostgreSQL | Node.js · Express · Prisma · PostgreSQL · Jest | 🟢 Active |
| 🔗 QuickForm | SaaS-style drag-and-drop form builder with async email queues, CSV export & public form sharing | Node.js · React · Prisma · Redis · BullMQ · Vercel | 🟢 Live |
| 🔗 PortfolioEcosystem | Full-stack portfolio CMS with JWT auth, BullMQ queues, Redis caching & Cloudinary uploads | Node.js · Prisma · Neon PostgreSQL · React · Vite | 🟢 Live |
| 🔗 EasyPetpuja | University canteen meal booking system with role-based portals & Razorpay payments | Node.js · Express · EJS · MongoDB · Razorpay | 🟢 Complete |
| 🔗 QuickChat | Real-time, multi-threaded Java TCP chat server tested to 50+ concurrent users, with Swing GUI client | Java · Sockets · Multithreading · Swing | 🟢 Complete |
| 🔗 MicroblogApplications | Full-stack microblogging starter with session-based auth and profile management | React · Express · MongoDB | 🟢 Complete |
| 🔗 CurrencyConvertor | Desktop currency conversion app with local CSV transaction logging | Python · Tkinter · ttkbootstrap | 🟢 Complete |
| 🔗 ExecutableIntelligence | Autonomous navigation agent using hybrid LLM + Reinforcement Learning to optimize decision latency | Python · Tkinter · RL | 🟡 Testing |
| 🔗 AWSRestart | Multi-tier café app on AWS: EC2, RDS Aurora, DMS migration, S3, IAM, CloudWatch | EC2 · RDS · S3 · DMS · CloudWatch | 🟡 In Progress |
| 🔗 IplDataAnalysis. | EDA pipeline for IPL match datasets with statistical profiling and distribution modeling | Python · Pandas · Seaborn | 🟢 Complete |
| 🔗 FifaWorldcupAnalysis | Sports analytics pipeline with data imputation, correlation matrices, and predictive features | Python · Pandas · Seaborn | 🟢 Complete |
| 🔗 LeetCode-SQL | Structured SQL solutions for LeetCode database challenges — joins, window functions, query optimization | MySQL · PostgreSQL | 🟢 Active |
| Repository | Focus |
|---|---|
| FullstackLabBca | Full-stack fundamentals — modular code, CRUD, middleware |
| CorePythonFundamentals | Python scripts on geometry, arithmetic & data manipulation |
| DsaLabAssignments | C programs for core data structures & algorithms |
| DBMSAcademicAssignments | SQL / PL-SQL assignments for the DBMS course |
| C-Logic-Vault | Modular C programs on core programming concepts |
| OopsJavaExercise | OOP principles, multithreading, exceptions & Collections in Java |
| JavaDsa | Java algorithms & OS scheduling (FCFS, LRU) |
| WorldCupMatchesDataAnalysis | Historical FIFA World Cup analytics with Seaborn |
| Datasets | Curated datasets for EDA & ML practice |
| ProjectReports | Technical documentation, cloud architecture diagrams & research reports on AI safety frameworks and infrastructure guardrails |
| CV-And-Resume | Resume & CV source files |
- 🎯 AWS re/Start — Cloud Solutions Architect Associate track (Ongoing, 2026)
- ✅ AWS Certified Cloud Practitioner (CLF-C02) — Amazon Web Services
- ✅ Programming in Java — NPTEL · IIT Certification (Jan–Apr 2025)
- ✅ Data Representation & Visualization — Brainware University (Jul–Aug 2024)
- 📘 Preparing for: AWS Certified Solutions Architect – Associate (SAA-C03)
"First, solve the problem. Then, write the code." — John Johnson