1127 English-speaking jobs in Berlin

Lean Engineer, Formal Mathematics role requires writing idiomatic Lean 4 proofs in mathlib across algebra, analysis, and logic. Responsibilities include formalizing math and reviewing AI-generated proofs. Must have hands-on Lean 4 experience.

Product Design/UX Expert role involving evaluating design decisions and developing product mockups using Figma, Sketch, or Adobe. Requires 3+ years at a prestigious tech firm and experience providing UX/User Journey feedback.

CUDA Engineering Expert role involves analyzing and optimizing GPU kernels for performance using profiler metrics. Responsibilities include writing C++17, Python, and GPU code, applying expertise in CUDA or HIP, and identifying bottlenecks.

QA Engineer specializing in browser test validation for AI-generated web applications. Responsibilities include reviewing testing workflows, assessing technical feasibility, and validating test isolation. Requires 3+ years in QA/SDET with experience in browser automation frameworks.

Document Specialist role requires using Word on macOS for authoring and reviewing legal, policy, and consulting documents. Must have Word on Mac, ability to capture >2.5MP screenshots, and access to a high-resolution monitor or dual-monitor setup.

Applied Mathematics Benchmark Specialist role requires a PhD or doctoral candidate to author complex math questions, provide detailed solutions, and verify problem clarity for AI research labs.

Computational Mechanics Expert role involves designing challenging problems to evaluate AI in scientific research. Requires graduate STEM training, proficiency in scientific software, and strong Python skills.

Design adversarial prompts to stress-test frontier AI models, identifying jailbreaks, unsafe behaviors, and policy failures. Evaluate model robustness across sensitive domains and document vulnerabilities for safety reports. Requires 5+ years in AI Safety or related fields.

MLOps Engineer focused on LLM Performance, covering kernels, profiling, and serving. Requires 2+ years in ML systems, custom kernels (Triton, CUDA), and serving large language models at scale.

Marketing Analytics Expert needed to design task briefs, review AI agent attempts, and evaluate AI-generated content in Marketing Analytics. Requires hands-on experience in marketing analytics, fluency in GA4, Amplitude, Salesforce, and ad platform reporting.

STEM Data Specialist evaluates AI-generated content in STEM fields for accuracy and rigor. Responsibilities include reviewing scientific data, providing structured feedback to research teams, and developing evaluation rubrics. Graduate-level training in Engineering, Physics, Math, Chemistry, or Software Engineering is required.

Data Analyst - Insights Specialist role requires reviewing domain-specific documents for quality and accuracy. Candidates must have a Bachelor's degree and 2+ years of relevant experience, with strong proficiency in Excel, PowerPoint, and Word.

Nuclear Security Engineer role involves writing prompts (benign, dual-use, adversarial) and evaluating AI responses against policy. Requires experience in material control, physical protection, or vulnerability assessment.

Platform Engineer - Document Specialist role requires reviewing and assessing domain-specific documents for quality and accuracy. Candidates need 2+ years of experience, strong document analysis skills, and proficiency in Excel, PowerPoint, and Word.

Quantum Information Scientist (PhD) role involves evaluating AI-generated physics content, reviewing complex problems, and developing evaluation rubrics. Requires a PhD in quantum information or related field, published work, and proficiency in LaTeX, Python, SymPy, and Jupyter.

Astrophysics and Cosmology Expert needed to design computational problems for AI evaluation. Requires graduate STEM training, strong Python skills, and proficiency with scientific software in a Linux environment.

Expert Network Simulation Engineer needed to design and build reproducible network topologies using tools like Containerlab or GNS3. Responsibilities include configuring BGP, OSPF, and developing automated validation scripts. Requires 5+ years of network engineering experience.

Evaluate AI-generated artifacts against domain-specific quality rubrics using deep subject-matter expertise in Engineering, manufacturing, or technical operations. Provide structured written feedback to improve AI model performance. Requires 5+ years of relevant experience.

AI Safety Red Teamer role involves designing adversarial prompts to stress-test frontier AI models. Responsibilities include identifying unsafe behaviors and documenting vulnerabilities across sensitive domains. Requires 5+ years of experience in AI Safety or related fields.

Develop and maintain high-quality Android applications using Kotlin and Java. Evaluate Android Studio applications on macOS for functionality and performance. Requires proficiency with Android Studio on macOS and the ability to capture high-resolution screenshots.