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Join our team as:API Support Developer
KRAKÓW|HYBRID
We are seeking a talented and customer-focused API Support Developer to join our team. 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.
API Support Developer
PLN 7,000 – 12,000 NET ON B2BPLN 6,000 – 11,000 NET MANDATE CONTRACT
RequirementsWho are we looking for?
Basic tech stack
  • .NET Core
  • REST APIs
Great, if you know
  • Postman, Swagger
  • SQL databases
  • Azure or AWS
  • authentication methods like OAuth or API keys
Important traits
  • You have solid knowledge of .NET Core
  • Already have 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
  • You have 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
  • You are proactive and eager to learn
  • You have excellent verbal and written communication skills
ResponsibilitiesWhat you'll do?
  • As an API Support Engineer, you will help customers succeed by assisting them in understanding and integrating our API, troubleshooting issues, and providing clear solutions.
  • To support users, you will create and update documentation, including API guides, tutorials, and troubleshooting FAQs, empowering customers with self-service solutions and advocating best practices.
  • Your role will also involve contributing to API development and enhancement, working with .NET Core to expand features, implementing improvements based on customer feedback, and ensuring high-quality code through testing and debugging.
  • For more complex challenges, you will collaborate with the engineering team to ensure effective resolutions. Additionally, you will monitor API performance to maintain reliability.
  • Collaboration will be key, as you will act as the link between customers and the engineering team, work with product managers to align API updates with business goals, and share customer insights to shape future development.
Our offerWhat’s in it for you?
Paid holidaysPaid holidays
Training budgetTraining budget
Private healthcarePrivate healthcare
Non-Corporate cultureNon-Corporate culture
The opportunity to work on cutting-edge privacy-focused blockchain technologyThe opportunity to work on cutting-edge privacy-focused blockchain technology
A hybrid work environment with flexible hoursA hybrid work environment with flexible hours
A friendly, collaborative team that values learning and innovationA friendly, collaborative team that values learning and innovation
Opportunity to transition into a backend developer roleOpportunity to transition into a backend developer role
Multisport Plus or gym and swimming pool pass for a facility located just across the streetMultisport Plus or gym and swimming pool pass for a facility located just across the street
About the projectWhat project you’ll be working on?

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.  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. Great if you have a degree in Computer Science, Engineering, or a related field or equivalent practical experience and 1+ years of experience in API development/support or related roles. In addition, if you have a problem-solving mindset, great communication skills, and a curiosity for development, we’d love to hear from you!

Recruitment process
Check our recruitment process
Learn more about the recruitment process at Rumble Fish. Our HR team will accompany you every step of the way.
01
Send us your application
Start by sending us your resume so we can get an overview of your experience and skills.
02
Phone screening
If your CV matches the profile, we’ll arrange a 15-minute interview to get to know each other better.
03
Recruitment task
We’ll give you a task so that you can showcase your skills. We can skip this step if you’ll show us some of your amazing code.
04
Meeting in the office
Now we invite you to our office in Kraków for a technical interview. We can also do it online.
05
The result
We’ll inform you about our decision within a few days.
Let's collaborate
Apply now for this position!Don’t see a suitable position? We’re always looking for talent, so feel free to get in touch!Do you prefer e-mail?
jobs@rumblefish.pl
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