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About Me

name        : Abdullah Al Masud Tushar
role        : Senior Software Engineer
location    : Dhaka, Bangladesh 🇧🇩
experience  : 7+ years — backend, cloud & data engineering
companies   : Cefalo (current) · Brainstation 23
interests   : System Design · Distributed Systems · Backend architecture · Cloud infrastructure · Data engineering

• 🏢 Senior Software Engineer @ Cefalo — part of a 200+ engineer offshore team for Norwegian industries
• 🌍 7+ years delivering production platforms in green energy, recruitment, transportation & high-traffic consumer products with European remote teams
• 🏗️ System Design & Distributed Systems — architecting scalable backends handling 100K+ events & 50M+ daily requests
• 📉 Reduced cloud infrastructure costs by 75% through API optimisation, query tuning & caching
• 🚢 Led a cargo-tracking algorithm analysing 100K+ historical events from 700+ LNG ships
• 📈 Boosted user engagement by 40% via scalable chat & friendship features on AWS
• 👨‍🏫 Mentored 20+ junior engineers on AWS (15+ services) across multiple projects
• 🏆 Competitive programmer — HackerRank 2237 · CodeChef 2001 · Codeforces 1554

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🎯 Career Impact at a Glance

7+ Years of Experience Backend, Cloud & Data Eng

75% Cloud Cost Reduction APIs + DB + Caching

50M+ Requests / Day Trivia app at Robi Telecom

40% Engagement Boost AWS Lambda + DynamoDB

3.1K⭐ GitHub Stars break-the-ice-with-python

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🏢 Industry Domains & Platforms

Industries & Markets

🌱	⚡	🚛	👔
Green Energy	SaaS & Cloud	Transportation	Recruitment
Market data & forecasting	High-scale consumer products	Fleet & logistics ops	Talent matching systems

Key Platforms & Systems

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
MenuDao SaaS	Independent	Full-stack	Restaurant digital menu management with QR codes

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🛠️ Tech Arsenal

⚡ Languages Python JavaScript C++ HTML CSS 🧩 Frameworks Django DRF React Next.js Tailwind Pandas

🗄️ Databases PostgreSQL DynamoDB MongoDB Redis Apache Solr ☁️ Cloud & Infra AWS (15+ svcs) GCP Docker Kubernetes Prometheus Grafana

🔧 Tools & Practices Kafka GitHub Actions Git CI/CD Trunk-Based Dev 🏗️ Workflow Agile/Scrum Jira ClickUp Postman Code Review

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📊 GitHub Stats & Metrics

 

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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.

🍽️ MenuDao — Free SaaS for restaurant digital menu management. Built with Next.js, MongoDB, NextAuth (Google OAuth + JWT), SWR & QR code generation.

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🐍 Contribution Graph

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📜 Certifications & Achievements

🔷 AWS Certified Solutions Architect – Associate Amazon Web Services | Issued: Feb 2020 Core Competencies: ✓ EC2, S3, Lambda, RDS ✓ VPC, IAM, CloudFront ✓ Auto Scaling & Load Balancing ✓ 15+ AWS services expertise ✓ Cost optimization & security Applied in production across multiple enterprise platforms

⚡ Professional Scrum Master™ I (PSM I) Scrum.org | Certified Core Competencies: ✓ Scrum Framework & Practices ✓ Team Coordination & Velocity ✓ Sprint Planning & Retrospectives ✓ Agile Mindset & Delivery ✓ Stakeholder Management Actively mentoring 20+ engineers on agile practices

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💬 Random Dev Quote

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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!