1396 ux stepstone germany English-speaking jobs in Berlin
Include languages [+] sorted by: relevance · newest
Senior Data Scientist - F500 Expert
- Mercor
- Berlin
- November 7
- remote work
Senior Data Scientist role requires 5+ years in data science at a Fortune 500 organization. Responsibilities include building predictive models, data pipelines, and MLOps scenarios using tools like Snowflake, Python, and SageMaker.
Pharmaceutical Insights Expert
- Mercor
- Berlin
- November 7
- remote work
Design and refine physician and patient survey instruments for pharmaceutical research. Requires 3+ years in healthcare/life-sciences research with expertise in specific therapeutic areas like Oncology or Gastroenterology.
Engineering Expert
- Mercor
- Berlin
- November 7
- remote work
- part-time
Applied Engineering Benchmark Specialist role requires PhD or doctoral candidate to author complex engineering questions in VLSI, Control Science, or Mechatronics. Must provide Chain-of-Thought solutions and academic references.
Ubuntu Desktop Expert
- Mercor
- Berlin
- November 7
- remote work
Evaluate Linux Ubuntu 24.04 as a primary desktop OS. Collaborate with developers to enhance system performance and provide feedback on GNOME. Must have experience with Ubuntu 24.04 and high-resolution screenshot capability.
ML Research Scientist
- Mercor
- Berlin
- November 7
- remote work
ML Research Scientist role requires a PhD in ML/CS/AI and publication at ICML, NeurIPS, or ICLR. Responsibilities include evaluating AI content, reviewing research, and developing evaluation rubrics to improve model performance.
QA Engineer - Browser Test Specialist
- Mercor
- Berlin
- November 7
- remote work
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.
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.
AI Benchmark Specialist
- Mercor
- Berlin
- November 7
- remote work
CS PhD - AI Benchmark Specialist role requires authoring and reviewing original computer science questions. Responsibilities include rating difficulty, providing solutions, and citing references. A PhD or doctoral candidate in CS or related field is required.
Search Systems Engineer
- Mercor
- Berlin
- November 7
- remote work
Software Engineer role focusing on Agentic Search Systems. Responsibilities include evaluating AI content accuracy, developing search systems, scaling data infrastructure, and collaborating with AI research teams. Requires experience shipping production search systems and building agentic search systems.
Enterprise Data Science Specialist
- Mercor
- Berlin
- November 7
- remote work
Construct enterprise data science scenarios for large-scale predictive modeling and analytics governance at Fortune 500 accounts. Build analytics across ML model development, data pipelines, and BI using tools like Snowflake, Python/R, and SageMaker. Requires 5+ years in a data science role at a Fortune 500 organization.
AI Safety Red Teamer Expert
- Mercor
- Berlin
- November 7
- remote work
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.
Data Engineer - AI Model Evaluator
- Mercor
- Berlin
- November 7
- remote work
Data Engineer role using frontier AI coding agents to complete and evaluate complex data engineering tasks. Responsibilities include reviewing ETL pipelines, data warehouses, and distributed systems for bugs and scalability. Requires 2+ years of data engineering experience.
Full-Stack Engineer - AI Systems
- Mercor
- Berlin
- November 7
- remote work
Full-Stack Engineer for AI Systems. Requires 3+ years of experience, fluency in modern frontend/backend frameworks, and production experience with auth, payments, and file uploads. Duties include writing specs, building reference implementations, and calibrating task difficulty.
Condensed Matter Expert
- Mercor
- Berlin
- November 7
- remote work
- part-time
Condensed Matter Physicist (PhD) role to evaluate and solve research-level physics problems to enhance AI model reasoning. Requires PhD in condensed matter physics, verifiable publication record, and proficiency in LaTeX, Python, SymPy, and Jupyter.
Content Marketing Expert - AI Environments
- Mercor
- Berlin
- November 7
- remote work
Content Marketing Expert needed to design task briefs, review AI agent attempts, and evaluate AI-generated content to improve model outputs. Requires hands-on content marketing experience and comfort with CMS tools.
SEO Specialist
- Mercor
- Berlin
- November 7
- remote work
SEO Specialist role involves designing task briefs, reviewing AI agent attempts, and diagnosing issues from organic growth work. Requires hands-on experience in SEO/AEO and fluency in Google Analytics 4, GSC, Semrush/Ahref, and a CMS.
Manufacturing Specialist
- Mercor
- Berlin
- November 7
- remote work
Evaluate AI-generated artifacts against domain-specific quality rubrics. This role requires 5+ years of experience in Engineering, manufacturing, or technical operations. Provide structured written feedback to improve AI model performance.
Software Tester
- Mercor
- Berlin
- November 7
- remote work
Review browser-based testing workflows for AI-generated web applications. Assess technical feasibility and reliability of browser interactions. Requires 3+ years in QA/SDET with experience in web application testing and automation frameworks like Playwright or Cypress.
Core Contributor
- Mercor
- Berlin
- November 7
- remote work
Core Contributor/Open Source Maintainer role guiding AI model performance via code review and open-source maintenance. Requires senior judgment, hands-on project building (including Docker), and a verified history as a core contributor to a widely used open-source project.
Physics Expert
- Mercor
- Berlin
- November 7
- remote work
- part-time
Physics Expert needed to solve research-level physics challenges end-to-end using Python and verifiable derivations. Requires PhD or postdoc in the relevant subfield with publications and proficiency in LaTeX, Python, Jupyter, and SymPy.




















































.png)





























