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About Me

name        : Abdullah Al Masud Tushar
role        : Senior Software Engineer — Backend-Heavy Full-Stack
location    : Dhaka, Bangladesh 🇧🇩
experience  : 7+ years — backend systems, distributed architecture & cloud engineering
companies   : Cefalo (current) · Brainstation 23
focus       : Backend Architecture · Distributed Systems · Cloud Infrastructure · Data Engineering

• 🏢 Senior Software Engineer @ Cefalo — building production-grade backend systems for Norwegian industries
• 🏗️ Backend & Distributed Systems first — architecting scalable services handling 50M+ requests/day and 100K+ real-time events
• 📉 Reduced cloud infrastructure costs by 75% through API optimisation, query tuning & intelligent caching
• 🚢 Led a cargo-tracking algorithm analysing 100K+ historical events from 700+ LNG ships
• ☁️ AWS Certified — 15+ AWS services in production across multiple enterprise platforms
• 🌍 7+ years remote collaboration with European teams across green energy, recruitment & transportation
• 👨‍🏫 Mentored 20+ junior engineers on backend systems, cloud & distributed design
• 🏆 Competitive programmer — HackerRank 2237 · CodeChef 2001 · Codeforces 1554

🏢 Industry Domains & Platforms

Platform	Company	Scale	Domain
Volue Insight	Cefalo	$550M platform	Green energy market data & forecasting
Recruitment Platform	Cefalo	Early-stage startup	Full-stack job matching & applicant tracking
Trivia Backend	Brainstation 23	50M+ requests/day	High-traffic consumer engagement (Robi Telecom)
Ferdia ERP	Brainstation 23	$2.33M funded startup	Coach & charter bus operations digitization

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🛠️ Tech Arsenal

⚡ Backend Languages Python JavaScript (Node) C++ 🧩 Backend Frameworks Django Django REST Framework Celery Pandas 🔀 Messaging & Streaming Apache Kafka Redis Pub/Sub	🗄️ Databases PostgreSQL DynamoDB MongoDB Redis Apache Solr ☁️ Cloud & Infrastructure AWS (15+ svcs) GCP Docker Kubernetes 📊 Observability Prometheus Grafana	🏗️ Engineering Practices System Design Distributed Systems REST APIs Microservices 🚀 CI/CD & Delivery GitHub Actions CI/CD Trunk-Based Dev Git 📋 Process Agile/Scrum Jira Code Review
· also ships frontend when the situation calls for it · React   Next.js   HTML   CSS   Tailwind CSS

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🚀 Featured Projects

 

🐍 break-the-ice-with-python — 100+ Python problems with detailed solutions. 3,100+ ⭐ · 1,500+ forks — helping thousands of developers learn Python fundamentals.

🤖 rag-app / Marginalia — Chat with your documents. Upload PDFs or markdown, get streamed answers with inline citations pinned to the source passage. Built with Next.js, Gemini embeddings & SQLite vector store.

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📜 Certifications

🔷 AWS Certified Solutions Architect – Associate  ·  Amazon Web Services  ·  Feb 2020

⚡ Professional Scrum Master™ I (PSM I)  ·  Scrum.org

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💬 Random Dev Quote

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📊 GitHub Stats & Metrics

 

🐍 Contribution Graph

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🤝 Let's Connect

📬 Open to collaborations, mentoring & exciting opportunities!

LinkedIn Professional network & work experience

Email For direct communication & project inquiries

GitHub Explore my repositories & contributions

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💡 Let's build something amazing together! 🚀

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⭐ If you find my work useful, consider giving a star to my repositories!