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Dejan JankovicDJ

Dejan Jankovic

Full-Stack Developer

€333/day
Germering, DE
0-2 years
React.js
Typescript
Node.js
Next.js
PostgreSQL

Average response time: 1 hour

Freelancer profile translated to English.
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About Dejan

I am a Full-Stack Developer from Germering near Munich. I build modern websites and web applications with React, Next.js, TypeScript, Node.js, and PostgreSQL. I independently developed a 3D visualization platform with Cloudflare R2 Storage, role-based access control, and REST APIs. I have also built websites for real clients that are live today, including a company website for a construction company and a website for an accounting service. I work cleanly, reliably, and finish projects. Whether it's a new website, web application, or bug fixing, I'm ready.
Automotive OEM
Arts and Crafts
Digital and IT Services
Insurance
Facility Services and Security

  • German

    Native or bilingual

  • Serbian

    Native or bilingual

  • English

    Conversational

Remote only
Primarily works remotely

Experience

  • Sektor Sicherheitsdienst GmbH (Praktikum)
    Full-Stack Developer
    October 2025 - January 2026 (3 months)
    86 Augsburg, Germany
    Developed Sektor3D Asset Manager as a final project – a platform for managing and presenting 3D models. Implemented full-stack with Next.js, Payload CMS, PostgreSQL, Supabase, React Three Fiber, including Auth, roles, and REST APIs. Estimated annual savings of approx. €3,500 through central 3D management (including ~2 hours time savings per week).
    React.js Next.js Node.js Typescript PostgreSQL
  • Dnz Networks (Praktikum)
    Full-Stack Developer
    July 2025 - October 2025 (3 months)
    Munich, Germany
    Conceived and developed the first version of Sektor3D/3DModelCMS in a 3-person team. Built central backend and API structures with Payload CMS, PostgreSQL, and REST APIs. Contributed to data modeling, architectural decisions, and full-stack implementation with Next.js and React.
  • HKLS, Herten
    Installer and Maintenance Technician
    August 2002 - January 2022 (19 years and 5 months)
    Munich, Germany
    Installed and maintained HVAC systems for over 19 years, resolving issues in the Herten/Munich area. Independently planned, executed, and completed an average of approx. 10 service and installation orders per week. Systematically analyzed complex faults, documented them cleanly, and coordinated with customers and service providers.

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Education

  • IT Specialist Application Development (Chamber of Industry and Commerce)
    GFN Munich
    2026
    Fachinformatiker Anwendungsentwicklung (IHK)
  • Web Development Bootcamp
    Neue Fische GmbH
    2022
    Web Development Bootcamp
Check out Dejan's education

Categories