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Senior Backend Developer Registrar Service (f/m/d)

Full-time
Remote (worldwide) or Hybrid (Regensburg, Germany)
Apply Now
Department
Engineering
December 18, 2025

Role Responsibilities

  • Develop, enhance and optimize our backend systems for managing domain registrations, DNS services and additional domain-related functionalities.
  • Design, implement and maintain APIs, including the integration of external APIs (e.g. EPP-based Registry systems).
  • Ensure the scalability, reliability and security of our systems in a high-availability environment.
  • Collaborate closely with the front-end team to deliver a consistent, high-performing user experience.
  • Actively contribute to architectural decisions and the continuous improvement of the existing code base.
  • Analyze complex technical challenges and implement sustainable solutions to ensure high system availability.

Your Profile

  • Degree in Computer Science, Information Science or a comparable qualification.
  • Several years of professional experience in backend development, preferably within a domain registrar or comparable infrastructure environment.
  • Strong proficiency in one or more backend programming languages such as Python, Go, Java, PHP or Elixir.
  • Familiarity with tools like RabbitMQ or Apache Kafka, and their effective use.
  • Experience with databases such as MySQL, PostgreSQL or NoSQL solutions.
  • Strong knowledge of cloud platforms (e.g. AWS, Google Cloud, Microsoft Azure) and container technologies (Docker, Kubernetes).
  • Confident use of common development tools and methodologies (e.g. Git, CI/CD, test-driven development).
  • Knowledge of network and web protocols (DNS, HTTP, SSL/TLS) is an advantage.
  • Independent, structured working style with excellent analytical and problem-solving skills.
  • Strong communication skills and a collaborative team mindset.

Benefits

  • Competitive salary with ample opportunities for professional and personal growth.
  • Maximum flexibility: Fully remote work from anywhere in the world or alternatively a hybrid setup at our Regensburg location.
  • Flexible working hours aligned with project requirements.
  • A modern working environment with up-to-date technical equipment.
  • A responsible role in a collaborative, trustworthy and forward-looking working environment.
  • Discounted access to OpusDNS products and services.
  • Collaboration within a motivated and skilled team with flat hierarchies and short decision-making paths.
  • Being part of a dynamic, innovative and international company working on exciting global projects.

About OpusDNS

Welcome to OpusDNS, where we are redefining the way customers buy, sell, and manage domains. Designed to empower our partners with the essential tools for success, OpusDNS eliminates the complexities of the domain industry, offering wholesale domain services that capture the attention of domain resellers. Become an active contributor in creating the next generation of domain reselling, providing the best platform with an unparalleled customer experience. Be part of something bigger, something better.

We are committed to transforming the domain reselling industry through innovation, excellence, and customer-focused solutions. Our mission is to simplify domain transactions, making them more accessible and efficient for everyone. As we prepare for our launch, we are building a platform that delivers unmatched reliability and support, ensuring our partners can thrive in the digital landscape. Join our dynamic team and help shape the digital world of tomorrow!

Hiring Process

If you want to help shape the future of the domain registrar, OpusDNS, and to improve your skills in an agile environment, then we look forward to receiving your application! OpusDNS is an Equal Opportunity Employer. We practice equality of opportunity for all with the right mix of talent, skills and potential. We welcome all applications from a wide range of candidates.

Please send us your CV, relevant references and a brief description of your previous projects by filling out the application form below.

We look forward to hearing from you!