Senior Backend Engineer (m/f/d)

Your role

• Develop and maintain backend features and APIs for our core platform
• Improve database performance, reliability and real-time data processing
• Debug, profile and optimise code to keep latency low and systems stable
• Collaborate with AI, frontend and product teams to integrate new capabilities
• Contribute to architectural decisions and shape the evolution of our backend stack

You are

• 5-7 years’ experience building production-grade backends (Python is a must; additional experience in Go, C++, or Java is valuable)
• Solid in SQL and data modelling (PostgreSQL or similar)
• Experienced with REST APIs and cloud environments (AWS preferred)
• Comfortable working independently and taking ownership of a problem
• Startup mindset — quick to ship, focused on quality, allergic to bureaucracy

Nice to have

• Linux debugging and performance tuning
• Familiarity with orchestration (Kubernetes, Terraform, Ansible)
• Experience with data pipelines or analytical databases
• Interest in edge/cloud hybrid architectures

Why this role matters

You’ll help shape how data moves through our system — building fast, reliable infrastructure that powers every customer interaction.

Don't meet all the requirements?

Deltia is committed to creating a workplace that is diverse, fair, and inclusive. We encourage candidates from all backgrounds, even if they do not meet every qualification, to submit their application. We firmly believe that having a team with diverse perspectives only strengthens our company and drives innovation. Our commitment also extends to providing an accessible environment for everyone, including those with disabilities. Please let us know if you require any accommodations during the application process or while working with us, and we will do our best to support you.

*Only full-time, permanent roles are eligible for stock options. Part-time roles, contract roles, work-student, internships and freelance roles are not eligible for stock options.