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Ruslan M., Senior Full-Stack Engineer
Ruslan M.
🇵🇱Poland (UTC+01:00)
Created AtUpstaffer since February, 2026

Ruslan M. — Senior Full-Stack Engineer

Expertise in Full Stack Web, React Developer.

 Last verified on February, 2026

AI Tools & Assistants

GitHub Copilot

Bio Summary

Senior Full-Stack Engineer with 17+ years of experience in versatile enterprise-grade projects for large service companies (Ciklum).

SOLID principles, OOP, and component-based design in cloud environments, CI/CD pipelines, and performant user interfaces used by large-scale applications:

  • Back-End: Node.js, Next.js, PHP;
  • DB: SQL (relational MySQL and PostgreSQL) and NoSQL;
  • Front-end: JS/Typescript, React, Angular, Vue.js (pet); TanStack Query/Router, performance optimization;
  • Cloud deployments on Azure, Vercel, and Netlify, CI/CD pipelines.

Technical Skills

Programming LanguagesJavaScript, PHP, Python, TypeScript
JavaScript FrameworksAngular, Express, Ext JS, Next.js, Node.js, React, Vue.js
.NET PlatformAzure
JavaScript Libraries and ToolsReact Query, React Router, Redux, TanStack Query, Vuetify
Databases & Management Systems / ORMMongoDB, MySQL, NoSQL, PostgreSQL, Redis
UI Frameworks, Libraries, and BrowsersChakra UI, CSS, CSS3, HTML5, LESS, Material UI, SASS, ShadCN
Cloud Platforms, Services & ComputingAzure, Netlify, Vercel
Azure Cloud ServicesAzure DevOps
Methodologies, Paradigms and PatternsAgile, Kanban, microservices, OOP, REST, Scrum, SOLID, SSR
Third Party Tools / IDEs / SDK / ServicesAsterisk
QA, Test Automation, SecurityAuthentication, Jest, Mocha, Unit Testing
Operating SystemsCentos, Linux
BlockChain and Decentralized SoftwareChai
Deployment, CI/CD & AdministrationCI/CD, GitLab CI
PlatformsCMS
Virtualization, Containers and OrchestrationDocker
Version ControlGit, Github Actions, Mercurial, SVN
SDK / API and IntegrationsGraphQL, OData, RESTful API
Mail / Network Protocols / Data transferGRPC, VoIP, WebSockets
Web/App Servers, MiddlewareSPA
UI/UX/WireframingUI/UX
Other Technical Skillscaching strategies, ChatGPT, ES2021, GitHub Flow, Performance Optimization, PhoneGap, Radix-UI, Restify.js, SASS/SCSS/LESS, SDK, shadcn/ui, SSR data fetching, TanStack Router

Work Experience

Full-stack Engineer (Enterprise CMS Web Applications)

Duration: Nov. 2021 - Sep. 2025

Summary: Development of scalable web applications within the Sitecore enterprise CMS environment.

Responsibilities:

  • Developed and maintained web applications using React, Next.js, and Angular within the Sitecore CMS ecosystem;
  • Implemented server-side rendering (SSR) solutions and deployed applications using platforms such as Vercel and Netlify;
  • Integrated frontend applications with backend services built on Node.js.;
  • Configured data-fetching, routing, and caching logic using TanStack Query and TanStack Router;
  • Participated in application refactoring and codebase improvements;
  • Contributed to performance optimization and architectural enhancements of frontend applications;
  • Used AI-assisted development tools (ChatGPT, GitHub Copilot) to support implementation and testing tasks.

Technologies: ReactJS, Next.js, Angular2+, TanStack Query, TanStack Router, SSR, Vercel, Netlify, ChatGPT, GitHub Copilot.

Full Stack Engineer, Ciklum (Highload Web Applications)

Duration: Jul. 2017 - Oct. 2021

Summary: A technology services company providing software engineering, digital product development, and IT consulting. It supports enterprises in building, maintaining, and scaling digital systems.

Responsibilities:

  • Developed web applications using PHP and Node.js on the backend and modern JavaScript frameworks on the frontend;
  • Worked with relational databases, including MySQL and PostgreSQL for data storage and query optimization.
  • Implemented performance improvements and architectural adjustments in existing systems;
  • Collaborated with cross-functional teams, including backend engineers, QA specialists, and client stakeholders;
  • Participated in system design discussions and technical planning.

Technologies: PHP, Node.js, JavaScript, Frontend Frameworks, MySQL, PostgreSQL.

Lead Full Stack Engineer, Tubik Studio

Duration: Jun. 2016 - Mar. 2017

Summary: A digital design agency specializing in UI/UX design, branding, and product design for web and mobile applications. It provides user research, interface design, and visual identity development services.

Responsibilities:

  • Led frontend development of a React/Redux-based single-page application;
  • Designed and implemented frontend architecture and state management structure;
  • Implemented UI interactions and animations in collaboration with designers;
  • Coordinated development tasks within a small engineering team.

Technologies: React, Redux, JavaScript.

Full Stack Engineer, Ciklum (Web and Mobile Applications)

Duration: Aug. 2012 - Jun. 2016

Summary: A technology services company providing software engineering, digital product development, and IT consulting. It supports enterprises in building, maintaining, and scaling digital systems. Development of web and mobile applications.

Responsibilities:

  • Developed web and mobile applications using AppCelerator/Titanium SDK and PhoneGap;
  • Integrated frontend applications with backend services built on Node.js.
  • Worked with relational databases including MySQL and had exposure to PostgreSQL in selected projects.
  • Participated in framework selection and frontend architecture discussions;
  • Contributed to ongoing support and enhancement of production systems.

Technologies: AppCelerator/Titanium SDK, PhoneGap, JavaScript, Frontend Frameworks.

Full Stack Engineer, VoIP Projects

Duration: 2007 - 2012

Summary: Development of full-stack web applications, Web/Linux VoIP applications, and media streaming systems with real-time features and content management.

Responsibilities:

  • Developed frontend interfaces using JavaScript, HTML, and CSS, and backend systems using PHP and MySQL;
  • Built server-rendered web applications and internal management tools;
  • Developed VoIP applications for Web/Linux environments using Asterisk SDK;
  • Implemented terminal-based systems on CentOS for barcode scanning and real-time product lookup;
  • Developed media streaming functionality, including playlist management, scheduling, and content administration features;
  • Collaborated with designers and clients to define UI/UX requirements and system behavior.

Technologies: JavaScript, HTML, CSS, PHP, MySQL, Asterisk SDK, CentOS.

Education

  • Technical School of Computer Service and Economics
    Completed technical education of programming electronic machines and automatization systems.
    2003 - 2006
  • Ternopil’ National Economic University
    Completed bachelor education of programming electronic machines and automatization systems.
    2006 - 2009

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