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Roman JumatovRJ

Roman Jumatov

Fullstack Developer - React | TypeScript | Java

€800/day
Willich, DE
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Roman

I am an experienced Fullstack Developer from Germany with a focus on Next.js, TailwindCSS, and digital accessibility. Since 2020, I have been developing scalable web solutions that are not only technically convincing but also accessible to everyone.

What I can do for you:
  • Development of modern, performant web applications with React/Next.js
  • Custom solutions with TailwindCSS for appealing UI/UX
  • Digital accessibility according to WCAG 2.1 AA & BFSG for inclusive design
  • API development & backend architecture with Node.js or Spring Boot
  • Database management and access using Next.js, Node.js, or Spring Boot
  • CMS integration with headless systems like Contentful
  • Deployment & infrastructure via Vercel, Azure, and CI/CD workflows
  • Optimization for SEO, performance, and usability
I help companies improve their digital presence, whether through a new website, a web app, or the optimization of existing systems. My standard: Clean code, well-thought-out architecture, and smooth collaboration.

I look forward to your message!
  • German

    Native or bilingual

  • English

    Fluent

Can work on-site
Willich (up to 50km)

Experience

  • Knauf Digital GmbH
    Fullstack Developer
    DIGITAL AND IT
    June 2025 - Today (1 year and 1 month)
    München, Germany
    • Migration of GraphQL, REST APIs including OpenAPI specs with
    comprehensive test coverage (Spring, NestJS)
    • Performance optimization of PostgreSQL queries
    • Further development of admin and account frontends with complex authorization and invite logic
    • Optimization and expansion of authentication (next-auth v5)
    • State management, UI optimization, and dependency migration
    • End-to-end testing support (Playwright)
    • Webshop new development, from concept to productive rollout (checkout flow, shopping cart, pricing integration)
    TypeScript React.js Scrum Spring Boot Next.js
  • Sparkassen DirektVersicherung AG (Provinzial AG)
    Agile Software Developer
    BANKING AND INSURANCE
    September 2023 - March 2025 (1 year and 6 months)
    Düsseldorf, Germany
    • Responsive web design
    • Refactoring and modernization of React applications, both technically and in terms of design (UX)
    • OS-independent app development with Capacitor
    • Optimization of time-controlled jobs
    • Bug fixing and further development of Java microservices
    • Accessible web development (up to level AA)
    React.js TypeScript Java Spring Boot Scrum
  • Ceyoniq Technology GmbH (A KYOCERA Group Company)
    Fullstack Developer
    SOFTWARE PUBLISHING
    July 2023 - August 2023 (1 month)
    Bielefeld, Germany
    • Bug fixes for a Java-based ECM system
    • Improvement and optimization of existing solutions
    • Careful analysis and quick familiarization with new tasks
    Java Spring Boot Scrum

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Education

  • Computer Science Studies, Bachelor
    Heinrich Heine University Düsseldorf
    2020
    Informatik-Studium, Bachelor
  • Abitur
    Fichte-Gymnasium Krefeld
    2017
    Abitur

Skill set

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