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  • API Support Developer (with .NET experience)
    New
    Net

    API Support Developer (with .NET experience)

    Kraków
    1 763 - 3 023 USDNet/month - B2B
    1 511 - 2 771 USDGross/month - Mandate
    Type of work
    Full-time
    Experience
    Junior
    Employment Type
    B2B, Mandate
    Operating mode
    Hybrid

    Tech stack

      English

      advanced

      .NET Core

      regular

      Customer Support

      regular

      Communication

      regular

      RESTful API

      junior

      API

      junior

      Postman

      nice to have

      Azure

      nice to have

      AWS

      nice to have

    Job description

    Our client is a leading provider of business solutions for the music industry. It offers a comprehensive B2B platform, API, and web 3 infrastructure that enhance efficiency in music distribution, financial reporting, and simplify royalty processes. Its services include catalog management, supply chain, income tracking, rights management, and business intelligence. By leveraging innovative solutions, the company helps music businesses adapt to the rapidly evolving market and seize new opportunities.


    We are seeking a talented and customer-focused API Support Engineer to join our team. This role will play a critical part in supporting and improving our public-facing API, which is a core product offering. You will work directly with customers to troubleshoot issues, provide guidance, and gather feedback, while also contributing to the development and enhancement of the API.


    This role is ideal for those who enjoy working with APIs, assisting customers and want to grow into a Back end Developer position in the near future. If you have a problem-solving mindset, great communication skills, and a curiosity for development, we’d love to hear from you!


    What You’ll Do:


    🔹 Help Customers Succeed with Our API

    • Assist users in understanding and integrating our API.
    • Troubleshoot API-related issues and provide clear solutions.
    • Work with the engineering team to resolve more complex challenges.
    • Monitor API performance and ensure reliability.


    🔹 Contribute to API Development & Enhancement

    • Work with .NET Core to improve and expand our API features.
    • Implement new features based on customer feedback.
    • Write clean, efficient, and well-documented code.
    • Test and debug API updates to maintain high quality.


    🔹 Create Helpful Documentation

    • Write and update API guides, tutorials, and troubleshooting FAQs.
    • Empower customers with self-service solutions.
    • Advocate for best practices in API usage.


    🔹 Collaborate with Teams Across the Company

    • Be the link between customers and our engineering team.
    • Partner with product managers to align API updates with business goals.
    • Share customer insights to shape future development.


    What We’re Looking For:


    Technical Skills

    • Solid knowledge of .NET Core 
    • Experience in developing and supporting APIs
    • Understanding of RESTful APIs and tools like Postman, Swagger.
    • Knowledge of SQL databases and cloud platforms (Azure, AWS) is a plus.
    • Some experience with authentication methods like OAuth or API keys.


    Customer-Focused Mindset

    • A passion for helping users and solving technical problems.
    • Strong troubleshooting and problem-solving skills.
    • Clear communication and the ability to explain technical concepts simply.


    Soft Skills 

    • Excellent verbal and written communication skills (+ excellent English skills - we work with international clients on daily basis)
    • Proactive and eager to learn.
    • Team player with a positive, can-do attitude.


    Education & Experience

    • A degree in Computer Science, Engineering, or a related field or equivalent practical experience.
    • 1+ years of experience in API development/ support or related roles


    What We Offer:


    • The opportunity to work on cutting-edge privacy-focused blockchain technology
    • A hybrid work environment with flexible hours
    • Join a friendly, collaborative team that values learning and innovation.
    • Opportunity to transition into a back end developer role. 
    • Non-Corporate culture
    • Paid holidays
    • Training budget
    • Private healthcare
    • Multisport Plus or gym and swimming pool pass for for a facility located just across the street



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    1 763 - 3 023 USD

    Net/month - B2B

    1 511 - 2 771 USD

    Gross/month - Mandate

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    Informujemy, że administratorem danych jest Rumble Fish Poland Sp. z o.o. z siedzibą w Krakowie, ul. Filipa Eisenberga 1...more

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