Freelance Java Back-end Developer

About adhese

adhese builds smart adtech solutions for a cookieless future from its offices near Ghent (Belgium) and Wroclaw (Poland). The adhese platform enables media owners to monetize their media inventory and first-party data, and facilitates advertisers to reach their audiences efficiently in a simple way.

The company is growing steadily and is seeking to strengthen its Ghent team with several experienced software engineers.

Summary

As a Back-End Developer you are part of our Technology organisation, and play a crucial role in designing, developing, and maintaining the robust back-end infrastructure of our cutting-edge AdTech platform.

Your primary responsibilities include building complex systems, implementing scalable solutions, ensuring seamless integration of features, and being involved in building a qualitative code base that is enjoyable to work in.

Responsibilities

• System Architecture and Development: design, develop, maintain the back-end architecture of our platform, delivering high performance, maintainable, scalable, and reliable code.

• Database Management: optimize database structures and queries for efficient data storage and retrieval. Work with large datasets and implement performant data storage solutions.

• Performance and Integration: implement performance optimization techniques to ensure optimal platform speed and responsiveness. Collaborate with Front-end Developers to integrate user-facing elements with server-side logic.

• Cross-Functional Collaboration: collaborate with colleagues across Technology, Product and Support domains to exchange knowledge, share interpretation of requirements, and deliver high-quality software solutions.

• Security and Compliance: implement and maintain security measures to protect against data breaches and ensure compliance with industry regulations. Stay informed about the latest security threats and technologies to proactively address potential vulnerabilities.

• Code Quality and Testing: write clean, well-documented, and efficient code, and participate in code reviews to maintain code quality standards. Collaborate with QA (Automation) Engineers to conduct thorough testing of back-end components. This to enable CICD pipelines in our fast to market approach.

• Documentation: create and maintain comprehensive documentation for back-end code, ensuring knowledge transfer and ease of collaboration.

• Agility: follow agile and lean ways of working with focus on continuous improvement and effective change facilitation, closely aligned with your team and stakeholders. Our key values: Alignment, Transparency, Respect, and Relentless Improvement.

• Solid experience as a Back-End Developer focused on high performance web applications.

• Proficiency in the full Java spec, writing performant SQL/ORM mappings and Spring is required.

• Familiar with general security, testing best practices, system monitoring, performance tuning.

• Familiar with deployment technologies e.g. Kubernetes, Docker, cloud platforms like Azure.

• Familiar with several of the following: REDIS, GITHUB, REST, KAFKA, Microservices architecture, Atlassian stack (JIRA, Confluence).

• Familiar working according to Agile/Scrum principles, and believe in the strength of working according to Agile Manifesto.

• Solid analytical and problem-solving abilities.

• Solid communication skills in English.

• Capable and motivated to maintain comprehensive documentation.

• Ability to work independently as well as collaboratively with cross-functional teams.

• Willing to work from our Ghent offices (hybrid) two full days per week.

Benefits

• Join a fast-moving and growing international business.

• Have significant impact, with ample room for initiative.

• Be part of an experienced team that blends hard work with fun.

• Balance life and work with flexible hours and structural remote work.

• An open-ended, full-time freelance contract with competitive day rate.