BOOT · TSIMAFEYENKA
> loading scene · calibrating 3D uniforms
DENIS_TPORTFOLIO · v1.0
ONLINESYS // EXPERTISE
> SYS.FEED · EXPERTISE
SOFTWARE ENGINEER · REACT / NEXT.JS
REC 00:00:42
SIGNAL // NOMINAL
⟨ / ⟩ · 1-5 · ARROWS
TSIMAFEYENKA // v1.0
> 02 // CAPABILITY.MATRIX
EXPERTISE
06 DOMAINS · ALL SYSTEMS ONLINE
001

Frontend

HTML5/CSS3, TypeScript, React, Next.js, and Tailwind CSS. Focus on accessible, responsive, component-driven UIs that scale.

ReactNext.jsTypeScriptA11y
002

UI Engineering

Design system implementation, animation, micro-interactions, and performance. Interfaces that feel precise and alive.

TailwindCSSFramerPerf
003

Backend

Node.js, Express, REST APIs, authentication flows, and session management. Full request lifecycle ownership.

Node.jsExpressRESTAuth
004

Cloud & AWS

AWS Elastic Beanstalk deployments, environment config, and free-tier optimization for production-grade workloads.

AWSEBEC2S3
005

DevOps

Deployment automation, log management, monitoring pipelines, and CI/CD. Keeping systems observable and reliable.

CI/CDDockerLogsGit
006

Tooling

TypeScript strict mode, ESLint, Prettier, Git workflows, and DX tooling. Clean repo, clean team, clean output.

TSESLintPrettierGitHub