Sagar R.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

I am a software engineer with 10+ years of experience in software engineering, system architecture, requirement analysis, application development, testing, deployment, and maintenance. I specialize in building complex software systems, enterprise applications, scalable SaaS platforms, ERP and CRM solutions, and blockchain-based applications. My experience covers the complete software development lifecycle, from requirement analysis and system design to development, testing, deployment, and ongoing maintenance. My core expertise includes Full Stack Engineering, Enterprise Software Development, Blockchain Technology, and Web3 Application Development. I also work with Solana, Rust, and smart contract technologies to build secure and decentralized applications. I focus on solving complex technical problems, designing reliable software architectures, writing maintainable code, and delivering solutions that meet real business requirements. CORE SKILLS & EXPERTISE • Blockchain & Web3: Solana, Rust, Smart Contracts, dApps, Blockchain-Based Voting Systems. • Software Architecture: System Design, Complex Software Development, MVC Architecture, RESTful APIs, Database Architecture, and Third-Party Integrations. • Enterprise Software: ERP Systems, CRM Platforms, SaaS Applications, Multi-Tenant Architecture, Business Process Automation, and Client Portals. • Full Stack Development: Golang , PHP, Laravel, React.js, Vue.js, JavaScript, jQuery, HTML5, CSS3, and Bootstrap. • Backend Development: PHP, Java, J2EE, Laravel, CodeIgniter, Yii, and Node.js, Golang • Database Technologies: MySQL, SQLite, MongoDB, Database Design, and Query Optimization. • Cloud & DevOps: AWS, Linux, Windows Server, Apache, Nginx, Docker, CI/CD, and Server Management. • Testing & Quality Assurance: PHPUnit, JUnit, Unit Testing, Integration Testing, Black-Box Testing, White-Box Testing, and Test-Driven Development. • Software Engineering: Object-Oriented Programming, Agile Scrum, Git, GitHub, SVN, Technical Documentation, Code Review, and Software Maintenance. WHAT I CAN DO FOR YOUR PROJECT • Design and develop complex software systems from scratch. • Build scalable ERP, CRM, SaaS, and enterprise applications. • Develop blockchain applications and Solana dApps using Rust and smart contracts. • Design secure APIs and integrate third-party services and payment gateways. • Improve existing software architecture, performance, security, and maintainability. • Handle the complete development lifecycle, from technical planning to production deployment. WHY WORK WITH ME? I combine strong software engineering fundamentals with extensive hands-on development experience. I am comfortable working independently, collaborating with distributed teams, and taking ownership of challenging technical projects. Whether you need a complete software solution built from the ground up, improvements to an existing enterprise platform, or a blockchain-based application, I can help turn your requirements into a reliable and maintainable product. Thank you for visiting my profile. I look forward to collaborating with you!