Shimroz A.

Senior Backend Developer | Ruby on Rails | Node.js | React | TypeScript | Python | Vue.js Looking for a senior backend developer who can build reliable, scalable, and high-performance web applications from idea to production? With 10+ years of professional software development experience, I specialize in backend engineering with Ruby on Rails and Node.js, while also working across the frontend with React, TypeScript, and Vue.js I have experience designing APIs, building business-critical applications, optimizing databases, integrating third-party services, and working with cloud and modern development workflows. I focus on more than just writing code—I understand the business requirements, design practical solutions, and build software that is scalable, maintainable, secure, and production-ready. #What I Can Help You With Backend Development * Ruby on Rails (Rails 5.x–8.x) * Ruby * Node.js * Python * REST APIs & GraphQL APIs * Microservices & service-oriented architecture * Authentication & authorization * Complex business logic and integrations * Background jobs and asynchronous processing Frontend Development * React.js * TypeScript * Vue.js * JavaScript * Redux * HTML5 & CSS3 * Tailwind CSS & Bootstrap * AJAX / JSON I can work comfortably across the stack, making it easier to build and maintain applications where the frontend, backend, APIs, and database need to work together seamlessly. #Databases & Performance I have hands-on experience with: * PostgreSQL * MySQL * MongoDB * Redis * Elasticsearch * SQLite I also work on database optimization, query performance, indexing, caching, background processing, and application bottlenecks to improve reliability and response times. #Cloud, DevOps & Deployment I have experience working with: * AWS * Docker * Heroku * DigitalOcean * CI/CD pipelines * GitHub / Git / Bitbucket * Automated testing and deployment workflows I can help take an application from development through testing, deployment, monitoring, and production support. #Third-Party Integrations I have worked with various external services and APIs, including: * Stripe * SendGrid * Payment integrations * REST & GraphQL services * External APIs * Data scraping and API integrations #Code Quality & Testing I believe production-ready software requires more than functionality. I focus on: * RSpec * Unit & integration testing * TDD / BDD * Code reviews * Clean and maintainable code * Refactoring legacy code * Debugging and production issue resolution * CI/CD and automated testing #Architecture & Technical Leadership Beyond development, I have experience making architecture and technical decisions, reviewing code and system designs, improving existing applications, and mentoring developers. I have worked on legacy system modernization, modular architectures, APIs, background services, database improvements, and scalable application design. #Performance & Scalability If your application is becoming slow or difficult to maintain, I can help identify and resolve bottlenecks through: * Database and SQL query optimization * Caching * Redis * Background jobs with Sidekiq * Elasticsearch * API optimization * Code refactoring * Improved application architecture #Security & Reliability I follow secure development practices around: * Authentication & authorization * Data protection * API security * Secure integrations * Input validation * Dependency and vulnerability awareness * Reliable production deployments #Why Work With Me? Business-focused development: I take time to understand what you're building and why. Full-stack understanding: My strongest area is backend development, but I can work effectively with React, TypeScript, Vue.js, and other frontend technologies. Problem-solving mindset: I enjoy debugging complex issues, improving existing systems, and finding practical technical solutions. Clear communication: I believe good communication is essential for successful remote collaboration. Long-term quality: I aim to write code that is easy for your team to understand, test, maintain, and extend. Whether you need a Ruby on Rails backend developer, Node.js developer, API developer, full-stack developer, or someone to improve an existing application, I can help. Have a project in mind? Let's build something reliable, scalable, and built to last.