Software Engineer, AI/ML

About Circula

Circula is a Berlin-based software-as-a-service fintech that provides companies with a comprehensive expense platform for any payments made by employees. We are a team of 115 ambitious talents obsessed with the mission to simplify finance and payroll administration, while ensuring compliance through smart automations – so employees can do their best job. With over 30 nationalities across our offices in Europe, we embrace diversity and foster an inclusive culture, welcoming different perspectives and connecting people from different backgrounds. New work is nothing new to us: We value the freedom of choosing how and where we want to work. Through trust and flexibility, we are innovative and driven for success. Want to become a Circulator? Join us in becoming the #1 expense platform in Europe!

YOUR IMPACT AT CIRCULA

As an AI Engineer at Circula, you’ll be at the forefront of building the intelligent systems that power our next generation of expense management. You’ll design scalable data and ML infrastructure, develop high-impact models, and bring AI features into production that genuinely solve real-world accounting and finance pain points. From model architecture to observability, you’ll help shape how AI flows through our product ecosystem from day one.

Responsibilities:

• Challenge the status quo and rethink how AI can transform the finance and accounting world.
• Build AI/ML products that make you the messiah for accountants, delivering magical automation where it matters most.
• Architect a scalable data platform, because true AI supremacy starts with data.
• Fine-tune LLMs and train ML models on our most precious data to achieve levels of accuracy others can only dream of.
• Set up strong observability and model management infrastructure so we stay on top of our AI game at all times.
• Shape expense management from day one by solving real pain points with intelligent automation.

YOUR TALENTS FOR CIRCULA

Qualifications:

• You have at least 3 years of hands-on experience as a Pythonista, a strong background in AI, Machine Learning or Data Engineering and you have hands-on experience building and operating production-grade systems.

System Design:

• You understand that strong architecture is the backbone of effective AI. You bring solid system design skills and know how to build scalable, reliable and maintainable services, especially in fast-moving AI environments.

Cloud Expertise:

• You’re highly proficient in GCP or AWS and ideally bring experience in data engineering, distributed systems or modern data platform components.

Observability:

• Monitoring, evaluation, and transparency are core to how you build. You design with observability in mind from day one to ensure models and services run stably and predictably.

Pace & Adaptability:

• You thrive in dynamic environments and adapt quickly to new developments. AI moves fast and so do you.

Tech-Leverage:

• You actively use AI tools to accelerate your workflow, increase your output quality and create real 10x impact in your engineering work.

Ownership:

• You take responsibility in uncharted territory. With AI/ML best practices still being defined, you operate independently, with curiosity and a solution-oriented mindset to help shape what comes next.

Language:

• You communicate fluently and confidently in English and collaborate effectively with both technical and non-technical stakeholders.

BENEFIT WITH CIRCULA

• VSOP: Benefit financially when Circula thrives – our Virtual Stock Option Plan lets you share in our success.
• Circula’s Benefits: Enjoy Circula's food, internet and mobility allowances of up to €200 per month on us!
• Flexible working: We have a hybrid working model, a great, centrally located office in Berlin and offer home office days.
• Learning and Development: Use your €1500 budget for books, conferences, courses and more.
• Free Urban Sports Club membership: Keep fit and healthy with the sports that you love.
• Positive and open-minded: We love to socialize at team and company events. We also love pets, so your dog is always welcome too!

WHAT'S NEXT?

We promise, it will be quick! Our Talent Acquisition Partner, Rüzgar Cako, will get back to you with feedback within 2 working days. During the interview process, you will meet our team, your manager and Circula’s Co-founders, Nikolai and Roman. We encourage you to apply, even if you don't meet all the criteria. At Circula, we promote diversity and inclusion by welcoming individuals from diverse backgrounds. We value and embrace everyone, regardless of gender, ethnicity, sexual orientation, religion, or disability.

Key skills/competency

• Python
• AI
• Machine Learning
• Data Engineering
• System Design
• GCP/AWS
• Observability
• LLMs
• Model Management
• Automation