Vladimir V

VLADIMIR VOROBIEV Senior Full-Stack Developer 159 Selkirk Drive, Richmond Hill, L4B 4H9 Telephone: - E-mail:- Senior Full-Stack Software Engineer with 20+ years of experience building enterprise-grade systems and scalable web platforms. Strong expertise in MERN (MongoDB, Express, React, Node.js) and .NET ecosystems, with deep experience designing microservice-based architectures, REST APIs, and modern React applications. Proven track record delivering high-reliability systems in regulated enterprise environments using Agile/Scrum practices, CI/CD pipelines, automated testing, and secure authentication/authorization mechanisms. Experienced in mentoring engineers, performing code reviews, and driving technical improvements across teams. WORK EXPERIENCE Senior Full-Stack Developer uRDY SYS - Software Delivery Consultancy (Contract, Remote) Nov 2023 – Dec 2025 Technologies: React.js, TypeScript, Redux Toolkit, Redux Saga, Vite, Material-UI(MUI), Node.js, Express.js, NestJS, MongoDB, JWT, Winston, Jest, Docker , Terraform, Azure (Container Registry, Key Vault, App Service) • Designed and owned a production-grade, full-stack platform supporting live production workloads, with scalable architecture, high availability, observability, and secure access patterns. • Architected a modular Node.js/ NestJS/ Express / TypeScript backend with clear service boundaries, repository pattern, and middleware-driven security, validation, and error handling. • Designed data persistence using MongoDB, improving performance and scalability through indexing and optimized access patterns. • Built secure authentication and authorization using JWT with refresh token rotation, rate limiting, and audit-ready logging. • Implemented observability and operational tooling, including structured logging, metrics, and error tracking to support live production monitoring and troubleshooting. • Developed responsive React applications using TypeScript, Redux Toolkit, Redux Saga, and Material-UI • Implemented comprehensive unit and integration testing strategy using Jest achieving 95%+ code coverage across frontend and backend services. Senior Full-Stack Developer INTELEX, EHSQ & ESG Management Software | Toronto, ON, (Hybrid) Mar 2014 – Sep 2023 Technologies: ASP.NET MVC, .Net Framework 4.8.1, .Net Core, .Net 5, C#.Net, MS SQL, React.js, Next.js, JavaScript, GIT, Azure, NestJS, Microservices, REST API, Apollo GraphQL (Server and Client) • Contributed to and modernized a large-scale enterprise SaaS platform for regulated EHSQ and ESG domains by architecting scalable microservice-oriented backend services using Node.js, TypeScript, Express, and MongoDB • Designed and built high-reliability backend services and APIs, integrating legacy .NET systems with newer .NET Core and React-based components • Led multiple high-impact initiatives, including: ◦ AI-powered Permit Management services, reducing manual data entry and improving workflow efficiency. ◦ BI Reporting Performance Watch, providing customers with full visibility into slow and failing reports across the platform. • Worked within Agile/Scrum development environment, participating in sprint planning, backlog refinement, and production release cycles.. • Actively reduced technical debt through refactoring, improved testing practices, and platform standardization. • Led code reviews and technical mentoring, improving code quality and engineering standards. • Worked closely with product managers and stakeholders to translate complex operational requirements into scalable technical solutions. Senior Software Developer Bizquest Inc | Richmond Hill, ON, Contract (On-site) Oct 2013 – Mar 2014 Technologies: ASP.NET MVC, C#, MS SQL Server, JavaScript, jQuery, TRREB API • Designed and implemented a custom MLS web application for real estate brokers. • Built backend services and database architecture compliant with Toronto Regional Real Estate Board (TRREB) technical requirements. • Improved data ingestion and update performance for large MLS datasets. Senior Developer iView Systems | Oakville, ON, (On-site) Sep 2011 – Oct 2013 Technologies: ASP.NET, JavaScript, jQuery, C#, VB.NET, MS SQL, DevExpress controls, Team Foundation Server (TFS) • Developed a real-time dispatch and incident management system supporting security operations. • Automated large-scale data matching workflows, reducing manual processing and errors. • Delivered dashboards and reporting tools providing operational visibility and decision support. Senior Software Developer MI9 Business Intelligence Systems | Toronto, ON, (On-Site) Jun 2003 – Sep 2011 Technologies: ASP.NET, ASP.NET Web API/Rest API, MS SQL Server, Team Foundation Server (TFS), Infragistics controls, Crystal Reports • Designed and developed ERP and business intelligence systems for retail and merchant operations. • Built reporting, analytics, and data integration modules used in production enterprise environments. SKILLS and PROJECTS • Languages: C#, TypeScript, JavaScript, T-SQL, VB.NET • API Technologies: REST, GraphQL • Frameworks & Platforms: .NET Framework, .NET Core, ASP.NET MVC, React.js, NestJS, Node.js • AI & LLM-Driven Engineering: ◦ Prompt design, structured outputs (JSON), response validation, AI-assisted development workflows ◦ AI-assisted development tools: Cursor, Cline, Antigravity ◦ Agent-assisted workflows for code generation, refactoring, debugging, documentation ◦ Databases: MS SQL Server, MongoDB, MySQL, Redis, PostgreSQL • Cloud & DevOps: Docker, Azure (Container Registry, Key Vault, App Service), Jenkins, AWS (EC2, S3), Terraform • Testing & Quality: Jest, NUnit, automated testing, production monitoring • Version Control: Git, GitHub LinkedIn , NPM projects , VS Code Bookmarks Extension EDUCATION, CERTIFICATIONS, AND COURSES • Bachelor's degree in computer science - Moscow Aviation Institute, Russia • MCP – Implementing a Database Design on Microsoft® SQL Server (70-027) (Completed) • MCTS - Microsoft .NET Framework – Application Development Foundation (70-536) (Completed) • MCTS – Microsoft .NET Framework – Web-based Client Development (70-528) (Completed)