Rza Huseynov

Rza Huseynov

$25/hr
Senior Full Stack Developer with 10+ years
Reply rate:
75.0%
Availability:
Full-time (40 hrs/wk)
Age:
31 years old
Location:
Ismayilli, Az, Azerbaijan
Experience:
8 years
Rza Huseynov Senior Full Stack Engineer-| Ismailli, Azerbaijan | linkedin.com/in/rza-huseynov-/ Summary Senior Full Stack Developer with 10+ years of expertise architecting scalable, high-performance web ecosystems across Ecommerce, Video Production, Healthcare, Finance, and Blockchain. Excel in leading cross-functional teams to design resilient architectures, elevate user experiences, and harness cutting-edge technologies-including AI-to fuel enterprise growth and superior stakeholder outcomes. Renowned for optimizing mission-critical systems with unwavering emphasis on performance, scalability, and innovation. Skills Front End: HTML5, CSS, JavaScript, TypeScript, React, Angular, Vue, NextJS, Nuxt, Redux, NgRx Back End: Node.js, Express.js, NestJS, PHP, Python, Java, C#, Ruby on Rails, Rust, GraphQL Database: MySQL, PostgreSQL, MongoDB, Firebase, CLIP AI: TensorFlow, PyTorch, Scikit-Learn, OpenCV, LLM Testing: Jest, Mocha, Chai, Jasmine, Cypress, Playwright, TDD, BDD DevOps: Git, SVN, AWS, Docker, GCP, Azure, Jenkins, Travis CI, AWS CodePipeline, GitHub Actions Experience Senior Full Stack Engineer Target | MN, USA June, 2022 - September, 2025 ●​ Architected a scalable e-commerce platform using microservices and event-driven architecture, leveraging React, Next.js, Node.js, NestJS, Python, GraphQL, PostgreSQL, and Redis, driving 30% higher customer engagement and 20% cost reduction. ●​ Spearheaded an enterprise-grade CRM service, seamlessly integrating Salesforce, HubSpot, and major platforms (Shopify, WooCommerce), optimizing inventory and sales processes for operational efficiency. ●​ Improved application performance through SSR, SSG, PWA, and WebSockets, boosting SEO rankings by 40% and reducing server load by 30%. ●​ Integrated AI-driven solutions using TensorFlow, and PyTorch for personalized recommendations, customer analytics, and predictive inventory, increasing conversion rates by 35%. ●​ Revamped CI/CD pipelines with AWS (EC2, ECS, CodePipeline, S3), Kubernetes, Terraform, and CloudFormation, achieving 99.9% uptime and cutting deployment times by 80%. ●​ Championed test automation and quality assurance with TDD/BDD using Jest, Cypress, and Playwright, improving product reliability by 50%. ●​ Strengthened security and compliance by implementing OAuth 2.0, JWT authentication, and GDPR/CCPA-compliant protocols, reducing vulnerabilities by 60%. ●​ Strengthened cloud-native infrastructure on AWS and Kubernetes, ensuring high availability, performance, and cost efficiency, saving 25% on operational costs. ●​ Mentored senior engineers, led rigorous code reviews, and established GitHub workflows, fostering best-in-class development practices and team productivity. Full Stack Engineer Grabyo | London, UK July, 2019 - April, 2022 ●​ Designed a robust video streaming platform utilizing serverless architecture and message-driven workflows, incorporating Svelte, SvelteKit, FastAPI, and DynamoDB, achieving 99.9% reliability and 45% scalability improvement. ●​ Automated build and release pipelines using CircleCI, AWS Step Functions, and Docker, enabling seamless deployments and cutting feature delivery time by 55%. ●​ Directed frontend development by creating a shared design system and component library with Storybook and Chakra UI, reducing development cycles by 45% and ensuring UI consistency. ●​ Boosted frontend performance by implementing lazy loading, code splitting, and Redis-based caching strategies, achieving a 30% reduction in page load times and significantly elevating user experience across the platform. ●​ Developed an AI-driven content tagging system leveraging natural language processing (BERT) and computer vision (OpenCV, Detectron2), improving search precision by 50% and eliminating 60% of manual tagging efforts. ●​ Implemented real-time analytics with Prometheus for user engagement and Datadog for system performance, paired with Rollbar for error monitoring, slashing issue resolution time by 65%. ●​ Transitioned legacy systems to a microservices framework using Quarkus and RabbitMQ, boosting maintainability and lowering infrastructure costs by 35%. ●​ Executed a multi-cloud strategy with Azure and GCP, balancing cost and performance while enhancing disaster recovery with cross-region replication, improving recovery time by 80%. ●​ Guided engineering teams, enforced code quality standards with Prettier and CodeClimate, and promoted agile practices, driving 40% higher team efficiency. Software Engineer Avromed Company CJSC | Baku, Azerbaijan May, 2017 - July, 2019 ●​ Architected secure Electronic Health Record (EHR) systems using Java and C#, integrating AI-driven predictive analytics with SQL Server and Cosmos DB via RESTful APIs, boosting data integrity by 35% and reducing manual errors by 40%. ●​ Engineered a scalable microservices ecosystem with Spring Boot and .NET Core, leveraging Azure Service Bus and Apache Kafka for robust inter-service communication, improving system reliability by 30% and resource efficiency by 25%. ●​ Resolved API performance bottlenecks by optimizing N+1 query issues with advanced data batching and caching techniques, achieving a 60% faster data retrieval time. ●​ Established a comprehensive testing framework with JUnit, NUnit, and SpecFlow, achieving 95% test coverage and enhancing software reliability by 45% through rigorous unit, integration, and E2E testing. ●​ Leveraged Apache Spark and Hadoop for processing large-scale healthcare datasets, accelerating data processing by 50%, and utilized Azure Data Explorer with Kibana for real-time analytics, reducing insight generation time by 30%. ●​ Optimized deployment workflows using Docker and Azure DevOps, slashing release cycles by 50% and minimizing production issues by 35%. ●​ Implemented code quality enhancements using SonarQube and StyleCop, enforcing best practices to achieve a 40% reduction in defects and improve team code standards. Software Engineer Boston Consulting Group (BCG) | Baku, Azerbaijan May, 2015 - July, 2017 ●​ Seamlessly integrated third-party APIs (payment gateways, logistics, and CRM systems) and blockchain protocols (Ethereum, Hyperledger) across finance, healthcare, and retail, using Java, C#, TypeScript, and GraphQL, with Swagger and Postman for documentation, enhancing system interoperability by 35%. ●​ Developed high-performance SPAs with Vue.js, Angular, and Blazor, leveraging Tailwind CSS, Sass, and CSS Grid for responsive interfaces, integrating Web3.js for blockchain interactions, boosting user satisfaction by 40% across industries. ●​ Transformed Figma prototypes into pixel-perfect UIs using Angular and React, with TypeScript, RxJS, and NgRx for state management, incorporating smart contract integration, achieving 50% faster UI rendering and consistent design fidelity. ●​ Refined frontend performance with lazy loading, tree shaking, and Memcached in-memory caching, alongside IPFS for decentralized storage, reducing page load times by 35% and increasing mobile engagement by 45%. ●​ Collaborated on RESTful and GraphQL API development with Spring Boot, .NET Core, and DynamoDB, integrating blockchain APIs for secure transactions, using OpenAPI for robust contracts, improving data exchange efficiency by 30%. ●​ Streamlined build processes with Vite, esbuild, and Yarn, ensuring cross-browser compatibility and optimized bundle sizes, while integrating Truffle for blockchain development, cutting build times by 40% using GitLab. ●​ Enhanced client-side validation with Angular Reactive Forms and Zod, incorporating i18next for multilingual support and ethers.js for blockchain wallet integration, achieving 99% data accuracy and meeting global localization standards. Education Bachelor’s Degree of Computer Science Azerbaijan State Oil and Industry University 2012 - 2015
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