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Hi, I’m Denis Bilenko, a senior full-stack software engineer based in Yerevan, Armenia. I specialize in React, Next.js, Node.js, Express.js, and Nest.js, with full SDLC ownership since 2019 and a passion for building scalable, reliable systems. I lead cross-functional, distributed teams, mentor engineers, and focus on improving development processes. I’m motivated by delivering end-to-end features, reducing handoffs, and creating reusable libraries that boost productivity across multiple repos.…Hi, I’m Denis Bilenko, a senior full-stack software engineer based in Yerevan, Armenia. I specialize in React, Next.js, Node.js, Express.js, and Nest.js, with full SDLC ownership since 2019 and a passion for building scalable, reliable systems. I lead cross-functional, distributed teams, mentor engineers, and focus on improving development processes. I’m motivated by delivering end-to-end features, reducing handoffs, and creating reusable libraries that boost productivity across multiple repos.

Denis Bilenko

Front-End Developer, Back-End Developer, Full Stack Developer, +3

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Hi, I’m Denis Bilenko, a senior full-stack software engineer based in Yerevan, Armenia. I specialize in React, Next.js, Node.js, Express.js, and Nest.js, with full SDLC ownership since 2019 and a passion for building scalable, reliable systems. I lead cross-functional, distributed teams, mentor engineers, and focus on improving development processes. I’m motivated by delivering end-to-end features, reducing handoffs, and creating reusable libraries that boost productivity across multiple repos.…Hi, I’m Denis Bilenko, a senior full-stack software engineer based in Yerevan, Armenia. I specialize in React, Next.js, Node.js, Express.js, and Nest.js, with full SDLC ownership since 2019 and a passion for building scalable, reliable systems. I lead cross-functional, distributed teams, mentor engineers, and focus on improving development processes. I’m motivated by delivering end-to-end features, reducing handoffs, and creating reusable libraries that boost productivity across multiple repos.

Available to hire

Hi, I’m Denis Bilenko, a senior full-stack software engineer based in Yerevan, Armenia. I specialize in React, Next.js, Node.js, Express.js, and Nest.js, with full SDLC ownership since 2019 and a passion for building scalable, reliable systems.

I lead cross-functional, distributed teams, mentor engineers, and focus on improving development processes. I’m motivated by delivering end-to-end features, reducing handoffs, and creating reusable libraries that boost productivity across multiple repos.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Russian

Fluent

Work Experience

Senior Software Development Engineer at Adobe

July 1, 2025 - September 22, 2025

Led development of high-impact features for Adobe Workfront used by 5,000+ enterprise users; aligned implementation across 4 cross-functional teams, improving delivery consistency and reducing integration issues by 30%. Resolved 90%+ on-call incidents within SLA, led root cause analyses and postmortems. Owned features end-to-end from design to deployment; achieved zero rollback deployments across major releases. Maintained internal quality standards with >80% test coverage and built automated end-to-end tests. Delivered full-stack features with React/TypeScript and Express; reduced load times by 25% on key pages. Improved build configurations and MFEs imports, cutting bundle sizes by 17-34%, and presented features in sprint reviews.

Senior Full-Stack Software Development Engineer at Leverate

August 1, 2024 - Present

Migrated 3 repos from CRE to Vite, cutting dev server start from ~10s to <1s and HMR to near-instant. Shipped 20+ full-stack features end-to-end (React frontend + NestJS APIs). Owned features across the stack—from UI, REST endpoints, DB schema, to deployment—reducing handoffs and cutting average delivery time ~25%. Built shared internal libraries on both sides (React components + NestJS modules) adopted across 20 repos. Used Claude Code for harness engineering and orchestration.

Senior Full-Stack Software Development Engineer at Adobe

May 1, 2024 - July 31, 2025

Led development of high-impact business features used by 5,000+ enterprise users within Adobe's Workfront platform. Aligned technical implementation across 4 cross-functional teams, improving delivery consistency and reducing integration issues by 30%. Resolved 90%+ of on-call incidents within SLA; led root cause investigations and postmortems. Owned features end-to-end—design, implementation, deployment, and maintenance—resulting in zero rollback deployments. Maintained >80% test coverage and built automated end-to-end test suites for key workflows. Delivered full-stack features using React/TypeScript (MFEs), Express/NestJS; reduced load times by 25%. Improved build configurations; 17–34% reduction in bundle sizes and faster builds.

Front-end Developer (Lead) at EPAM Systems

April 1, 2024 - September 22, 2025

Led front-end development and onboarding across multiple React/TypeScript projects; cut manual FE-API integration by 95% via automated code generation using OpenAPI. Improved code quality with linting, format checks, and OWASP/SonarQube integration; implemented OAuth 2.0 PKCE authentication for two apps. Published reusable internal UI libraries adopted by other teams; built/testing strategy (unit, E2E) with Jest & Cypress; implemented real-time updates via WebSockets (STOMP); reviewed 300+ merge requests and enforced architecture guidelines.

Software Developer at EPAM Systems

May 1, 2021 - April 30, 2024

Acted as lead front-end developer and onboarding mentor across multiple React/TypeScript projects. Reduced manual FE-API integration effort by 95% via automated code generation using OpenAPI. Improved code quality with linting, format checks, and OWASP/SonarQube integration. Implemented OAuth 2.0 (with PKCE) authentication for 2 apps. Published reusable internal UI libraries adopted by other teams. Built and enforced testing strategy (unit, E2E) using Jest & Cypress. Implemented real-time updates with WebSockets (STOMP). Reviewed 300+ MRs; enforced code quality and architecture guidelines.

Frontend Developer at JetStyle

May 1, 2021 - September 22, 2025

Delivered 10+ projects using React/React Native across web/mobile; increased code coverage up to 90% (Jest, React Testing Library). Built full-stack applications with React, Node.js, Express, MongoDB; containerized with Docker.

Full-Stack Software Developer at JetStyle

March 1, 2020 - May 31, 2021

Delivered 10+ projects using React/React Native across web/mobile. Increased code coverage up to 90% (Jest, React Testing Library). Built full-stack applications with React, Node.js, Express, MongoDB; containerized with Docker.

Frontend Developer at AppBus

February 1, 2020 - September 22, 2025

Developed RBAC-based UI components and admin panels with permissions for 5+ user roles; delivered Chart.js visualizations improving analytics load times by 20%. Refactored the codebase using React/TypeScript, reducing duplication by 35% and build time by 25%.

Frontend Developer at Memphis

September 1, 2019 - September 22, 2025

Built UI with React/TypeScript; implemented drag-and-drop, pagination, and real-time data updates via WebSockets; reduced page load times by 35%. Collaborated across 5+ sprints; reduced UI bugs by 40% and accelerated feature delivery by 15% per sprint. Implemented a shared design system, cutting duplicate UI code by 50%.

Frontend Developer at AppBus

March 1, 2019 - February 29, 2020

Developed RBAC-based UI components and admin panels, supporting permissions for 5+ user roles. Delivered visualizations using Chart.js and improved component structure, leading to a 20% faster load time on analytics pages. Refactored the web application codebase using React and TypeScript, decreasing code duplication by 35% and build time by 25%.