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Senior Back End Engineer

  • Gent, Vlaams Gewest, Belgium

Job description

About Us:

ONTOFORCE is dedicated to pushing the boundaries of knowledge discovery and data processing for our customers, research-intensive organizations in the life sciences industry. Our goal is to streamline the drug development process by making complex data analytics user-friendly and performant. Our product, DISQOVER, is a cutting-edge platform that empowers users to navigate and extract actionable insights from a complex knowledge graph spanning terabytes of data.

As an engineer, you will contribute to continuous improvement of those knowledge graphs and DISQOVER in general.

Position: Senior Back End Engineer

As a Senior Back End Engineer, you will play a crucial role in the ambitious project to architect our product to achieve unprecedented scalability. You will collaborate closely with cross-functional teams to design and implement solutions that enable the platform to accommodate a knowledge graph containing up to 100TB of data. Additionally, you will take the lead to ensure users can efficiently derive insights from this vast reservoir of information, while also optimizing the processing of incoming changes within minutes.


1. Building Scalable Solutions:

  • Help architect the product to support knowledge graphs of 50TB+ data.
  • Develop efficient mechanisms for users to extract actionable insights from the extensive data repository, optimizing query performance and response times, even for complicated queries.
  • Design and implement robust systems for processing incoming data changes promptly, minimizing latency and ensuring real-time updates.
  • Leverage and extend the existing technology stack (Python, AWS, SOLR, Redis...) and identify limitations in scalability, proposing alternative solutions or enhancements.
  • Collaborate with cross-functional teams including data scientists, frontend engineers, and product managers to ensure alignment with business objectives and user requirements.
  • Stay abreast of emerging technologies and industry trends related to data management, scalability, and performance optimization, integrating relevant advancements into our architectural strategy.

2. Technology Stack:

Work with a cutting-edge technology stack, including Python, AWS, Azure, Redis, Solr. You will be at the forefront of solving complex problems and optimizing functionality for our APIs and user interfaces.

3. End-to-End Development:

Engage in the entire development lifecycle, from conceptualization and design to implementation and testing. You will autonomously and iteratively develop new functionality and features with a focus on effectiveness, performance, and user-friendliness.

4. Ownership and Collaboration:

Take ownership of the code you and your teammates produce. This involves actively participating in code reviews, sharing knowledge, and ensuring the creation of maintainable code. Mentor and guide less experienced team members to foster a collaborative and learning-oriented environment.

5. Innovation:

Drive innovation in our technologies, product, and development processes. We encourage creative thinking and continuous improvement to stay at the forefront of the industry.

Job requirements


  • Bachelor's or master's degree in computer science, Engineering, or a related field.
  • Experience working in a Product development context.
  • Proven experience in back-end development with expertise in building scalable software, Python, AWS, REST APIs and other relevant technologies.
  • Familiar with industry standard code principles like Clean Code and Clean Architecture and has a solid grasp of modern software engineering practices.
  • Strong problem-solving skills and the ability to develop effective, performant, and user-friendly solutions.
  • Experience working in an Agile environment.
  • Excellent collaboration and communication skills.
  • Attention for the quality, security and performance standards that are of great importance in the life sciences and healthcare industry.

Making a difference through our values

  • We are one ONTOFORCE - We're united as one team working together to achieve, because the greatest splash is made with the greatest force.
  • Your trusted partner - Through our innovative solutions and trusted team of experts, we support our customers as they carry out their science-driven missions.
  • Let's go - It's amazing what a can-do-attitude can do. We believe in fostering an entrepreneurial environment where everyone feels empowered to take initiative and make a difference.
  • Free to be you - Respect and trust are foundational in everything we do: we respect everyone as unique individuals and trust each other to make the best decisions for ONTOFORCE.


  • A competitive salary, meal vouchers (€8/day), eco vouchers(€250/year), hospitalization insurance, home working allowance, net expense allowance, and optional bike or car leasing.
  • Challenging environment: work with a dynamic team that welcomes challenges and encourages personal and professional growth. 
  • Innovative technology: contribute to DISQOVER, our groundbreaking product that pushes the boundaries of data-linkage technology. 
  • Development opportunities: access online learning platforms, like LinkedIn Learning, and benefit from personalized training days to enhance your skills. 
  • Generous leave policy: enjoy 32 paid leave days to maintain a healthy work-life balance. 
  • Hybrid working: experience flexibility with a balance between remote work and office collaboration. 

Join us in shaping the future of data discovery and be part of a team that values creativity, collaboration, and continuous improvement.