1383 English-speaking jobs in Berlin
Product Marketing Expert - AI Environments
- Mercor
- Berlin
- November 7
- remote work
Product Marketing Expert needed to design task briefs, review AI agent outputs, and diagnose issues. Requires hands-on product marketing experience, comfort with CRM/analytics tools, and clear written reasoning.
Formal Mathematician
- Mercor
- Berlin
- November 7
- remote work
- part-time
Formal Mathematician 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.
Data Engineering Specialist
- Mercor
- Berlin
- November 7
- remote work
Data Engineering Specialist role using frontier AI coding agents to complete and evaluate complex data engineering tasks. Requires 2+ years of experience with ETL pipelines, data warehouses, or distributed data systems.
IT Consulting Expert
- Mercor
- Berlin
- November 7
- remote work
IT Consulting Expert for F500 projects. Construct enterprise consulting scenarios for digital transformation, systems integration, and IT advisory. Requires 5+ years in IT consulting at a Fortune 500 firm.
Chess Analyst - Game Reconstruction
- Mercor
- Berlin
- November 7
- remote work
Chess Expert (1800+ ELO) needed for Game Reconstruction. Responsibilities include correcting speech-to-text errors in chess commentary and developing complete game reconstructions. Must be fluent in algebraic notation and have strong attention to detail.
Nonproliferation Analyst - Dual-Use Expert
- Mercor
- Berlin
- November 7
- remote work
Nonproliferation Analyst role requires expertise in export control, proliferation pathway analysis, and illicit trade. Responsibilities include writing prompts, evaluating AI responses against policy, and distinguishing misuse.
Marketing Analytics Expert - AI Environments
- Mercor
- Berlin
- November 7
- remote work
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 - Engineering
- Mercor
- Berlin
- November 7
- remote work
- part-time
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.
Quantum Information Scientist
- Mercor
- Berlin
- November 7
- remote work
- part-time
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.
Senior Software Engineer - Open Source
- Mercor
- Berlin
- November 7
- remote work
Senior Software Engineer role applying open-source experience to real software engineering work. Responsibilities include contributing to AI model training, evaluation, and improvement. Requires senior experience and active open-source contributions.
Backend Software Engineer - Python
- Mercor
- Berlin
- November 7
- remote work
Backend Software Engineer role building MCP servers in Python using FastMCP. Responsibilities include API integration, Docker, Linux environments, and app state management. Requires strong Python skills and experience with backend systems.
AI Safety Practitioner
- Mercor
- Berlin
- November 7
- remote work
AI Safety Practitioner role involves evaluating AI responses for safety, accuracy, and policy compliance across sensitive domains. Requires 5+ years of experience in AI Safety, Trust & Safety, or related fields, and a relevant Bachelor's degree.
Explosives Specialist
- Mercor
- Berlin
- November 7
- remote work
Explosives Specialist role involves writing challenging prompts on energetic materials, labeling them, and evaluating model responses against policy. Responsibilities include judging correctness and writing reference answers. Must have expertise in hazardous device assessment or specialty materials chemistry.
Machine Learning Engineer
- Mercor
- Berlin
- November 7
- remote work
ML Engineer role involves using frontier AI coding agents to complete and evaluate complex ML and AI engineering tasks. Responsibilities include reviewing model implementations across training, MLOps, and LLM applications. Requires 2+ years of ML engineering experience and use of AI coding agents.
Computer Science Expert
- Mercor
- Berlin
- November 7
- remote work
- part-time
Applied Computer Science Benchmark Specialist role requires a PhD or doctoral candidate in CS or related fields. Responsibilities include authoring complex CS questions, providing solutions, and verifying existing content.
Design Systems Specialist
- Mercor
- Berlin
- November 7
- remote work
Design Systems Specialist role involves building scenarios for rapid prototyping, design system development, and cross-functional collaboration. Requires 5+ years as a product designer or AI-native engineer with ownership of shipped design systems or AI workflows.
Nuclear Security Expert - Red Team
- Mercor
- Berlin
- November 7
- remote work
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.
Fluid Dynamics Expert
- Mercor
- Berlin
- November 7
- remote work
- part-time
Fluid Dynamics and Convection Stability Physicist (PhD) role. Evaluate physics problems to enhance AI model reasoning. Requires PhD in related field with published work on convection stability and proficiency in LaTeX, Python, and Jupyter.
Product Design Expert - UX Specialist
- Mercor
- Berlin
- November 7
- remote work
- part-time
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.
Econometrics Specialist
- Mercor
- Berlin
- November 7
- remote work
Econometrics Specialist role requiring Stata SE on Windows and data analysis experience. Responsibilities include evaluating statistical analysis, improving data methodologies, and collaborating with biostatisticians to enhance AI model performance.
























































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