# Vladimir Deryuzhenko

> Software Engineer | Building secure and performant web applications

Location: Washington, District of Columbia, United States
Profile: https://flows.cv/vladimirderyuzhenko

Software Engineer with 5+ years of experience specializing in JavaScript, TypeScript, React, and other technologies. From enterprise-grade applications to performance optimization, I thrive in architecting robust front-end systems and collaborating cross-functionally to deliver impactful products.

Committed to continuous learning, mentoring, and embracing cutting-edge technologies. Always seeking to leverage my expertise in a dynamic role, contributing to pioneering projects that reshape user experiences.

## Work Experience
### Senior Software Engineer @ Global Connect
Jan 2023 – Jan 2024
- Led CMS dashboard development with advanced security, dynamic charting, and seamless 3rd-party API integrations
- Leveraged React Queries, reducing server requests by 20% by utilizing caching functionality
- Implemented and enforced web security best practices across multiple frontend projects, including secure coding techniques, input validation, and protection from cross-site scripting (XSS) and cross-site request forgery (CSRF)
- Developed reusable React components and extended open-source libraries, cutting development time by 15%

### Software Engineer @ Extend
Jan 2021 – Jan 2023 | San Francisco Bay Area
- Led 4 projects as the lead UI engineer, contributing over 35,000 lines of clean ReactJS code
- Cut costs of over $1 million by developing an application to replace a third-party service
- Consistently achieved code test coverage of over 85% by writing comprehensive unit and end-to-end tests utilizing Cypress, Jest, React Testing Library
- Configured CI/CD pipeline issues, ensuring reliable deployments of frontend applications through GitHub Actions, minimizing deployment failures by 60%
- Rapidly developed and shipped highly interactive products for customers in a fast-paced, iterative startup environment

### Frontend Software Engineer @ CoStar Group
Jan 2019 – Jan 2021 | Bethesda, MD
Formerly known as Homesnap. The company was acquired in November 2020

- Coded multiple front-end projects using JavaScript, jQuery, Handlebars from Invision mockups, and wireframes to retain agents that generated over $3 million in revenue
- Overhauled and rewrote over 2,000 lines of legacy code to comply with WCAG 2.1 Level AA guidelines
- Worked in a team of designers, developers, QA, and product/project managers to build more than 10 fully responsive, accessible, and cross-browser compatible products for real estate agents
- Worked on multiple front-end projects from concept to launch, helping build over 10 responsive products for real estate agents
- Created mobile first solutions and optimized all features for seamless performance other devices, ensuring an exceptional UX across platforms
- Managed key projects driving retention of 5,000+ paid agents
- Enhanced user experience through API integrations and performance optimizations 
- Collaborated cross-functionally with designers, developers, and product managers

Technologies and Tools used: JavaScript, jQuery, Handlebars, Google Maps API, SASS, Bootstrap, inVision

### Web Developer (Volunteer) @ AsylumConnect
Jan 2020 – Jan 2020 | New York, New York, United States
- Collaborated with cross-functional teams to create digital platform for LGBTQ asylum seekers and refugees
- Improved site performance through bug fixes and optimizations
- Implemented enhancements such as ratings, reviews, and translation integration to boost usability and access
- Helped translate mocks and wireframes into user-friendly interfaces
- Improved response and loading time by 15% by identifying and fixing over 10 high-priority bugs in production

Technologies and tools used: JavaScript, React Native, Google Translate API, Figma


## Education
### Bachelor's degree in Computer Security/Cyber
North-Caucasus State Technical University

### Full Stack Web Development
Flatiron School


## Contact & Social
- LinkedIn: https://linkedin.com/in/vladimir-deryuzhenko

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Source: https://flows.cv/vladimirderyuzhenko
JSON Resume: https://flows.cv/vladimirderyuzhenko/resume.json
Last updated: 2026-03-29