Senior Backend Developer

Af Maja Zelic
Kategori: Job

Location: Banja Luka

Company: Black Lemon

About us

Black Lemon is a fast-growing development agency specializing in advanced Shopify builds. We leverage modern stacks and innovative tools to craft and scale bespoke Shopify platforms with cutting-edge designs. Our mission is to become the preeminent destination for ambitious, big-scale ecommerce projects, shaping the future of online retail.

We foster a dynamic and inclusive work environment that values curiosity, collaboration, and performance, ensuring that every team member has the opportunity to grow and thrive. From an engineering perspective, we are deeply committed to modular architecture, lean principles, and engineering practices that enable continuous delivery. Our focus on these principles ensures that we can consistently deliver high-quality, scalable, and innovative solutions to our clients.

Job description

We are currently looking to expand our offerings by building a data integration layer that can seamlessly integrate our client’s data across various systems. Therefore, we are seeking a Senior Backend Developer with a strong background in system architecture and data integration. The ideal candidate will have experience in designing and implementing robust backend solutions that facilitate the integration of data between different systems.


  • Architect, design, and develop backend solutions for data integration across multiple systems.
  • Develop and maintain APIs and services to support data exchange between platforms such as Navision and Shopify.
  • Ensure the scalability, reliability, and security of the backend solutions.
  • Collaborate with projects managers, clients and other stakeholders to gather requirements and deliver high-quality solutions.
  • Troubleshoot and resolve issues related to data integration and system performance.


  • 5+ years of experience.
  • Strong knowledge of backend programming languages (e.g., Node.js, Python, Java).
  • Extensive experience with system architecture and data integration.
  • Proficiency in working with APIs and data interchange formats (e.g., JSON, XML).
  • Experience with ERP systems like Navision and e-commerce platforms like Shopify is a plus.
  • Strong understanding of database technologies.
  • Familiarity with cloud services (AWS, Azure, Google Cloud) and containerization (Docker) is a plus.
  • Excellent problem-solving skills and attention to detail.
  • Strong communication skills and the ability to work collaboratively in a team environment.

What We Offer

  • Competitive salary and benefits package.
  • Opportunity to work on challenging and impactful projects.
  • Collaborative and innovative work environment.
  • Professional development and growth opportunities.
  • Opportunity to help build the team

How to Apply

Interested candidates are invited to submit their resume and portfolio directly to Please include the subject line “Black Lemon – Senior Backend Developer in your email.

Black Lemon is proud to be an equal opportunity employer. We encourage applications from all qualified individuals regardless of race, gender, age, religion, sexual orientation, disability, or any other legally protected status. We thank all applicants for their interest.

For more information or questions please contact us at

Maja Zelic

HR Associate

+45 60 73 60

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