1396 ux stepstone germany English-speaking jobs in Berlin

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.

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.

Mathematical Physicist (PhD) role involves evaluating and solving research-level physics problems to enhance AI model reasoning. Requires a PhD in mathematical physics, theoretical physics, or mathematics, and proficiency in LaTeX, Python, SymPy, and Jupyter.

Engineering PhD candidates are sought to author and assess original engineering questions for AI research. Responsibilities include creating unambiguous problems, rating difficulty, and providing detailed Chain-of-Thought solutions with academic references.

ML Engineer role using frontier AI coding agents to complete and evaluate complex ML and AI engineering tasks. Requires 2+ years of experience building production ML systems or LLM applications.

DevOps Engineer - AI Model Evaluator uses frontier AI coding agents to complete and evaluate complex infrastructure tasks. Responsibilities include reviewing model-generated implementations across cloud platforms, Kubernetes, and CI/CD systems. Requires 2+ years of DevOps/SRE experience and familiarity with AI coding agents.

Clinical Survey Research & Methodology Expert (Physician/PhD) role. Design and refine physician-facing surveys across diseases. Requires advanced clinical/scientific degree and healthcare market research experience.

Clinical Evaluator role requires 5+ years in Clinical/biomedical/pharma to evaluate AI-generated artifacts. Responsibilities include identifying errors and providing structured feedback using domain expertise. Must be fluent in English and proficient in Microsoft Office/Google Workspace.

Product Management Expert role requires 5+ years of experience at a Fortune 500 tech organization. Responsibilities include building product tasks, developing scenarios, and applying methodologies like JTBD and OKRs for F500-scale products.

Chess Expert needed for game reconstruction and transcript correction. Must have 1800+ ELO, be fluent in algebraic notation, and use an analysis board. Responsibilities include evaluating and correcting speech-to-text errors in chess commentary.

AI Researcher role requires a PhD in ML/CS/AI with publications at ICML, NeurIPS, or ICLR. Responsibilities include evaluating AI content, reviewing ML research, and developing evaluation rubrics to improve model performance.

Applied Mathematics PhD role requires authoring original, rigorous math questions and solutions. Candidates must have a PhD or doctoral candidacy in Mathematics or a related field, demonstrating strong graduate-level concepts and clear written English.

Senior Software Engineer role applying open-source experience to real software engineering work. Responsibilities include contributing to AI model training, evaluation, and improvement while collaborating with research teams. Requires senior experience and active open-source contributions.

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.

Spreadsheet Analyst role requires reviewing domain-specific documents for quality and accuracy. Responsibilities include data analysis using MS Excel and Google Slides. Candidates need a Bachelor's degree and 3+ years of relevant experience.

Bioinformatics & Computational Single-Cell Genomics Expert needed for contract role. Responsibilities include designing computational problems for AI systems and collaborating on single-cell RNA-seq analysis using tools like scanpy. Requires graduate-level STEM training and strong Python skills.

Nuclear Safeguards Expert for Red Team. Responsibilities include writing prompts in the nuclear domain, evaluating AI responses against policy, and developing misuse scenarios. Requires experience in safeguards, nonproliferation, and fuel-cycle/material control.

Data Science Expert to design grading criteria and score AI/human work samples. Requires 5+ years of industry experience in business, product, or growth data science, with fluency in A/B testing, SQL/Python, and strong written communication.

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.

Desktop Support Specialist role requiring Windows 11 Professional expertise. Responsibilities include managing system settings, capturing high-resolution screenshots, and collaborating with IT to enhance system performance.