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I am a seasoned Back-End Engineer with over 5 years of experience, specializing in cloud and DevOps. I excel at architecting, building, and scaling resilient distributed systems for demanding production environments. Throughout my career, I have successfully led strategic migrations from cloud providers to robust self-hosted dedicated infrastructure, achieving significant cost reductions while maintaining high availability and peak performance. My expertise includes designing distributed microservices architectures, optimizing cloud infrastructure costs, and automating CI/CD pipelines for enhanced deployment reliability and frequency. I am passionate about mentoring junior developers and fostering improved team velocity and onboarding efficiency. Driven by innovation, I have engineered complex backend systems, including ecommerce platforms, digital marketplaces, and high-volume email delivery systems. I actively contribute to open-source projects and continuously develop my skills in cloud infrastructure, distributed systems, and backend technologies to deliver enterprise-grade scalable solutions.…I am a seasoned Back-End Engineer with over 5 years of experience, specializing in cloud and DevOps. I excel at architecting, building, and scaling resilient distributed systems for demanding production environments. Throughout my career, I have successfully led strategic migrations from cloud providers to robust self-hosted dedicated infrastructure, achieving significant cost reductions while maintaining high availability and peak performance. My expertise includes designing distributed microservices architectures, optimizing cloud infrastructure costs, and automating CI/CD pipelines for enhanced deployment reliability and frequency. I am passionate about mentoring junior developers and fostering improved team velocity and onboarding efficiency. Driven by innovation, I have engineered complex backend systems, including ecommerce platforms, digital marketplaces, and high-volume email delivery systems. I actively contribute to open-source projects and continuously develop my skills in cloud infrastructure, distributed systems, and backend technologies to deliver enterprise-grade scalable solutions.

Minhaj Sadik S

Back-End Developer, DevOps Developer, Cloud Developer, +2

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I am a seasoned Back-End Engineer with over 5 years of experience, specializing in cloud and DevOps. I excel at architecting, building, and scaling resilient distributed systems for demanding production environments. Throughout my career, I have successfully led strategic migrations from cloud providers to robust self-hosted dedicated infrastructure, achieving significant cost reductions while maintaining high availability and peak performance. My expertise includes designing distributed microservices architectures, optimizing cloud infrastructure costs, and automating CI/CD pipelines for enhanced deployment reliability and frequency. I am passionate about mentoring junior developers and fostering improved team velocity and onboarding efficiency. Driven by innovation, I have engineered complex backend systems, including ecommerce platforms, digital marketplaces, and high-volume email delivery systems. I actively contribute to open-source projects and continuously develop my skills in cloud infrastructure, distributed systems, and backend technologies to deliver enterprise-grade scalable solutions.…I am a seasoned Back-End Engineer with over 5 years of experience, specializing in cloud and DevOps. I excel at architecting, building, and scaling resilient distributed systems for demanding production environments. Throughout my career, I have successfully led strategic migrations from cloud providers to robust self-hosted dedicated infrastructure, achieving significant cost reductions while maintaining high availability and peak performance. My expertise includes designing distributed microservices architectures, optimizing cloud infrastructure costs, and automating CI/CD pipelines for enhanced deployment reliability and frequency. I am passionate about mentoring junior developers and fostering improved team velocity and onboarding efficiency. Driven by innovation, I have engineered complex backend systems, including ecommerce platforms, digital marketplaces, and high-volume email delivery systems. I actively contribute to open-source projects and continuously develop my skills in cloud infrastructure, distributed systems, and backend technologies to deliver enterprise-grade scalable solutions.

Available to hire

I am a seasoned Back-End Engineer with over 5 years of experience, specializing in cloud and DevOps. I excel at architecting, building, and scaling resilient distributed systems for demanding production environments. Throughout my career, I have successfully led strategic migrations from cloud providers to robust self-hosted dedicated infrastructure, achieving significant cost reductions while maintaining high availability and peak performance. My expertise includes designing distributed microservices architectures, optimizing cloud infrastructure costs, and automating CI/CD pipelines for enhanced deployment reliability and frequency.

I am passionate about mentoring junior developers and fostering improved team velocity and onboarding efficiency. Driven by innovation, I have engineered complex backend systems, including ecommerce platforms, digital marketplaces, and high-volume email delivery systems. I actively contribute to open-source projects and continuously develop my skills in cloud infrastructure, distributed systems, and backend technologies to deliver enterprise-grade scalable solutions.

Skills

Experience Level

Expert

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Work Experience

Backend & DevOps Engineer at Freelancer

March 1, 2025 - August 5, 2025

Designed and implemented a distributed microservices architecture handling 50K+ users and 500+ concurrent transactions, achieving 99.9% uptime and <200ms p95 latency. Reduced cloud infrastructure costs by 75% (~$12K monthly) through optimized self-hosted solutions while maintaining enterprise-grade reliability and scalability. Built automated CI/CD pipelines with canary and blue-green deployments, reducing deployment failures by 90% and enabling 5x more frequent releases.

Backend Engineer at Digital Drive Solutions, Troy, USA

November 1, 2022 - August 5, 2025

Built digital template marketplace using TypeScript and Node.js, supporting 100K+ graphic design and UI/UX templates with advanced search and licensing management for 10K+ designers. Implemented automated asset processing system with thumbnail generation and metadata extraction for multiple file formats (PSD, Figma, Sketch, AI), reducing manual processing time by 80%. Mentored 6 junior developers in backend development and system architecture, improving team velocity by 40% and reducing onboarding time from 4 weeks to 2 weeks.

Backend Engineer at Ajax Business Solution, Cairo, Egypt

December 1, 2020 - August 5, 2025

Architected multi-vendor e-commerce backend in Go, supporting 500+ merchants with inventory management, order processing, and concurrent transaction handling. Implemented product catalog system with Elasticsearch and Redis caching, enabling sub-100ms search queries across 100K+ products with advanced filtering. Built payment orchestration layer integrating multiple gateways with fraud detection, processing 5K+ daily transactions with 99.9% success rate.

Junior Software Engineer at Genius IT Solution, Sydney, Australia

February 1, 2020 - August 5, 2025

Contributed to core banking management system in C, developing account management modules and transaction processing routines for 10K+ customer accounts. Implemented data validation functions and optimized database queries, improving transaction processing speed by 25% while ensuring ACID compliance. Supported integration testing for ATM interfaces and online banking modules, helping resolve critical security vulnerabilities before production.

Back-end & DevOps Engineer at Freelancer

March 1, 2025 - August 5, 2025

Designed and implemented a distributed microservices architecture handling over 50,000 users and 500+ concurrent transactions, achieving 99.9% uptime and low latency. Reduced cloud infrastructure costs by 75% by optimizing self-hosted solutions while maintaining enterprise-grade reliability and scalability. Built automated CI/CD pipelines incorporating canary and blue-green deployments, reducing deployment failures by 90% and enabling five times more frequent releases.

Back-end Engineer at Digital Drive Solutions, Troy, USA

November 1, 2022 - August 5, 2025

Built a digital template marketplace using TypeScript and Node.js supporting over 100K graphic design and UI/UX templates with advanced search and licensing management for more than 10K designers. Implemented an automated asset processing system with thumbnail generation and metadata extraction for multiple file formats, reducing manual processing time by 80%. Mentored six junior developers in backend development and system architecture, increasing team velocity by 40% and reducing onboarding time from four weeks to two weeks.

Back-end Engineer at Ajax Business Solution, Cairo, Egypt

December 1, 2020 - August 5, 2025

Architected a multi-vendor ecommerce backend in Go supporting over 500 merchants with inventory management, order processing, and concurrent transaction handling. Implemented a product catalog system with Elasticsearch and Redis caching that enabled sub-100ms search queries across 100K+ products with advanced filtering. Built a payment orchestration layer integrating multiple gateways with fraud detection, processing over 5K daily transactions with 99.9% success rate.

Junior Software Engineer at Genius IT Solution, Sydney, Australia

February 1, 2020 - August 5, 2025

Contributed to core banking management system in C by developing account management modules and transaction processing routines for over 10K customer accounts. Implemented data validation functions and optimized database queries, improving transaction processing speed by 25% while ensuring ACID compliance. Supported integration testing for ATM interfaces and online banking modules, resolving critical security vulnerabilities before production.