A seasoned Backend Engineer with 5+ years of experience and significant DevOps expertise in architecting, building, and scaling resilient distributed systems for demanding production environments. I successfully spearheaded strategic migrations from cloud providers to robust self-hosted dedicated infrastructure, reducing operational costs by 75% while ensuring high availability and peak performance. Passionate about distributed systems, microservices architecture, and cloud-native solutions.
- 🌱 Currently Learning: Rust, Advanced System Design, Cloud Architecture Patterns, Infrastructure as Code (Terraform)
- 🔭 Working On: Distributed storage systems and high-performance microservices optimization
- 💬 Ask me about: Golang, TypeScript, JavaScript, Distributed Systems, Microservices, Cloud Infrastructure, DevOps
- ⚡ Achievement: Reduced cloud costs by 75% ($12K monthly) through strategic infrastructure optimization
- 📍 Location: Sylhet, Bangladesh
- 📫 Contact: [email protected] | minhajsadik.com | +88 01781-583107
Languages: Golang, TypeScript, JavaScript, C, Bash/Shell, Rust (Learning)
Frameworks & Runtime: NodeJS, NextJS, Gin, Fiber, ExpressJS
Cloud Platforms: AWS (EC2, S3, Lambda, CloudFront), GCP
Containerization & Orchestration: Docker, Kubernetes
Infrastructure as Code: Terraform, Ansible
Load Balancing & Proxy: Nginx, HAProxy
Databases: MongoDB, PostgreSQL, MySQL, Elasticsearch
Caching & In-Memory: Redis, Memcached
Storage Solutions: Distributed storage, Object storage, CDN
System Architecture: Microservices, Event-Driven Architecture, Serverless, Distributed Systems
CI/CD & Automation: Jenkins, GitHub Actions, Blue-Green Deployments, Canary Releases
Monitoring & Observability: Prometheus, Grafana, ELK Stack
Messaging & Streaming: Apache Kafka, RabbitMQ, gRPC, REST APIs
Security: OAuth 2.0, JWT, RBAC, API Security, Data Encryption
Communication: REST APIs, GraphQL, Rate Limiting, WebSocket
January 2023 - April 2025
Impact: Designed distributed microservices architecture handling 50K+ users and 500+ concurrent transactions with 99.9% uptime
Key Achievements:
- Achieved <200ms p95 latency across all microservices in production
- Reduced cloud infrastructure costs by 75% ($12K monthly) through optimized self-hosted solutions
- Built automated CI/CD pipelines reducing deployment failures by 90%
- Enabled 5x more frequent releases with canary and blue-green deployments
- Maintained enterprise-grade reliability and scalability throughout migration
Tech Stack: Golang, TypeScript, Docker, Kubernetes, AWS, MongoDB, Redis, Jenkins, Nginx, Apache Kafka, gRPC
February 2021 - November 2022
Impact: Built digital template marketplace supporting 100K+ templates for 10K+ designers
Key Achievements:
- Developed comprehensive digital asset marketplace with advanced search and licensing management
- Implemented automated asset processing reducing manual work by 80%
- Built thumbnail generation and metadata extraction for multiple formats (PSD, Figma, Sketch, AI)
- Mentored 6 junior developers, improving team velocity by 40% and reducing onboarding time from 4 weeks to 2 weeks
Tech Stack: TypeScript, NodeJS, MongoDB, Elasticsearch, Redis, Docker, CI/CD
April 2020 - December 2020
Impact: Architected multi-vendor ecommerce platform supporting 500+ merchants
Key Achievements:
- Enabled sub-100ms search queries across 100K+ products using Elasticsearch and Redis caching
- Built payment orchestration layer processing 5K+ daily transactions with 99.9% success rate
- Implemented fraud detection and multiple payment gateway integration
- Supported concurrent transaction handling with inventory management
Tech Stack: Golang, Elasticsearch, Redis, PostgreSQL, Payment Gateway APIs, Docker
June 2019 - February 2020
Impact: Contributed to core banking system serving 10K+ customer accounts
Key Achievements:
- Developed account management modules and transaction processing routines in C
- Improved transaction processing speed by 25% while maintaining ACID compliance
- Implemented data validation functions and optimized database queries
- Supported ATM interfaces and online banking module integration testing
Tech Stack: C, SQL, Database Optimization, Banking APIs, Security Protocols
Repository: github.com/minhajsadik/cloudbox | Live: cloudbox.minhajsadik.com
About: Enterprise-grade S3-compatible distributed storage system with database sharding, replication, and intelligent CDN capabilities
Key Achievements:
- Engineered petabyte-scale data storage with 99.99% durability
- Built custom CDN reducing global content delivery latency by 85% across 15+ regions
- Implemented comprehensive versioning and lifecycle management
- Achieved GDPR and SOX compliance standards
Tech Stack: Golang, Distributed Systems, Database Sharding, CDN, Object Storage
Repository: github.com/minhajsadik/socialsuites | Live: socialsuites.minhajsadik.com
About: Real-time social media automation platform supporting 10+ major platforms with intelligent scheduling algorithms
Key Achievements:
- Processed 50K+ posts daily across multiple client accounts
- Implemented OAuth 2.0 integration with rate limiting and API quota management
- Built analytics dashboard with engagement tracking and real-time WebSocket updates
- Supported Twitter, Facebook, LinkedIn, Instagram with intelligent scheduling
Tech Stack: Golang, OAuth 2.0, WebSocket, Chart.js, Rate Limiting, API Integration
Repository: github.com/minhajsadik/emailer | Live: emailer.minhajsadik.com
About: Resilient email delivery system with sophisticated rate limiting and multi-provider failover capabilities
Key Achievements:
- Processed 1M+ messages daily with automatic retry mechanisms
- Implemented provider failover across multiple SMTP services (SendGrid, AWS SES, Mailgun)
- Built real-time analytics dashboard with 99.9% accuracy
- Achieved optimal delivery rates through intelligent throttling
Tech Stack: Golang, SMTP Integration, Rate Limiting, Analytics Dashboard, Provider Failover
"Collaborating with Minhaj transformed our project. His deep knowledge of DevOps and Microservices Architecture enabled us to scale effortlessly and achieve faster, more reliable releases. Minhaj's proactive approach and meticulous attention to detail have been a tremendous asset to our team."
— James Turner, Senior Product Manager at Genius IT Solution
Bachelor of Science in Computer Science
Leading University, Sylhet, Bangladesh | 2019 - 2023
Relevant Coursework: Data Structures & Algorithms, Operating Systems, Distributed Systems, Database Management Systems
I'm always interested in discussing:
- Distributed Systems & High-Performance Architecture
- DevOps Best Practices & Infrastructure Optimization
- Microservices Architecture & Scalability Challenges
- Cloud Migration Strategies & Cost Optimization
- Open Source Contributions & Technical Mentorship
- 💼 Professional: LinkedIn
- 🌐 Portfolio: minhajsadik.com
- 📧 Email: [email protected]
- 🐦 Twitter: @MinhajSadik1
- 📱 Phone: +88 01781-583107 (Bangladesh)
- 💬 Let's discuss your next infrastructure challenge!
This profile README is open source. Feel free to fork and customize for your own use!
"Continuous learning is the key to innovation!"