ML Engineer, Agents & Reasoning

Dunia; Berlin; On-site; EUR 70,000 - 100,000; Full time

Job summary

A technology company focused on AI in Berlin seeks an experienced ML Engineer to build systems that integrate reasoning and decision-making in materials discovery. You will design agentic systems capable of operating in real-world challenges and collaborate with diverse teams to ensure effective implementation. Ideal candidates should have 4-8 years of relevant experience and a strong background in scientific data modeling or algorithmic systems. This role offers an opportunity to contribute to innovative solutions in energy and industrial processes.

Qualifications

• 4–8 years of experience in building ML-driven decision-making systems.
• Strong background in scientific data modeling, not language-first systems.
• Experience with decision-making under uncertainty.

Responsibilities

• Build agentic systems that plan, reason, and act in materials discovery workflows.
• Implement planning and control logic tailored to physical systems.
• Collaborate closely with AI researchers and ensure actionable outcomes.

Skills

ML-driven decision-making systems

Scientific data modeling

Planning and control

Probabilistic reasoning

Software engineering skills

Clear communicator

English fluency

Tools

PyTorch

JAX

Job description

Your mission

Build agentic AI systems that reason, plan, and act inside real materials discovery workflows. Most agent systems live in clean environments: browsers, codebases, or synthetic benchmarks. At Dunia, agents must reason about messy reality: experiments that fail, data that contradicts itself, and physical systems that don’t reset cleanly. As ML Engineer, Agents & Reasoning, you build the systems that make AI act responsibly inside that reality. You design agents that decide what to do next, use tools intelligently, recover from failure, and know when they don’t know. Your work sits at the boundary between cognition and control.

Your tasks will include:

Build agentic decision-making systems for discovery

• Design and implement agentic systems that plan, reason, and act across materials discovery workflows
• Develop agents that operate over experiments, simulations, and scientific datasets, selecting next actions under uncertainty
• Define how autonomy is scoped, when humans stay in the loop, and how decisions are escalated

Ground reasoning in scientific and physical reality

• Implement planning, control logic, and uncertainty-aware decision-making tailored to physical systems
• Encode operational, experimental, and safety constraints directly into agent behavior
• Define stopping criteria, fallback strategies, and recovery mechanisms to prevent brittle behavior

Turn models into action

• Collaborate closely with AI researchers to embed predictive models into agent workflows
• Work with lab, automation, and software teams to connect agents to real experimental and simulation systems
• Ensure agent outputs translate into executable actions, not just recommendations

Measure what matters

• Build evaluation frameworks that assess decision quality, learning efficiency, and system behavior, not just model accuracy
• Analyze failure cases and iterate on system design based on real-world outcomes
• Help define what “good decisions” mean in scientific discovery contexts

Ship reliable, production-grade systems

• Translate research concepts into robust, maintainable ML systems
• Instrument agents with logging, monitoring, and diagnostics for observability and debugging
• Take ownership of systems from prototype through deployment and operation

Your profile

• 4–8 years of experience building ML-driven or algorithmic decision-making systems in production or applied research settings
• Strong background in scientific or structured data modeling, rather than language-first systems
• Experience with planning, control, optimization, probabilistic reasoning, or decision-making under uncertainty
• Proficiency in modern ML frameworks (e.g.PyTorch, JAX) and strong general software engineering skills
• Comfortable owning systems end-to-end, from prototype to reliable operation
• Able to reason clearly about system behavior in complex, partially observable environments
• Technically curious, with interest in physical systems, experiments, and real-world constraints
• Clear communicator who can work effectively across AI, engineering, and scientific teams
• English fluency; additional language desirable

About Us

Dunia, meaning “world” in over 20 languages, reflects our focus on building technologies that deliver abundance globally. By combining physics, AI, and automation, we accelerate materials discovery for next-generation energy and industrial systems. Our work helps make energy more accessible and materials more affordable and resilient while reshaping how science moves from idea to impact. Join us to work on problems where progress truly compounds.

Need more convincing? – Watch this video

We strive to create a diverse and inclusive workplace where everyone feels welcome and safe to be their authentic self. Non-traditional career paths are welcome and valued. If you share our vision, you can be certain that we want you to succeed. You might be just the right candidate for this or for other roles that have not opened yet.

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