1126 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.

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

Statistical Physics PhD Researcher to evaluate physics problems to enhance AI model reasoning. Requires PhD in statistical or mathematical physics, verifiable publication record, and proficiency in Python, LaTeX, and SymPy.

Engineering Simulation Specialist role developing simulations and specification sheets for AI models. Requires deep expertise in control systems, analog/RF circuits, power electronics, or mechanical design, and proficiency in Python.

Infrastructure Expert role involves reviewing and assessing domain-specific documents for quality and accuracy. Responsibilities include providing structured feedback and collaborating on evaluation processes. Requires a Bachelor's degree and 2+ years of relevant professional experience.

CUDA Engineer focuses on analyzing and optimizing GPU kernels for performance and efficiency. Responsibilities include writing C++17, Python, and GPU code, using profiler metrics, and applying expertise in CUDA or HIP.

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.

Evaluate frontend code by judging visual fidelity, construction quality, and responsiveness across reference and candidate replications. Requires 3–8 years of frontend experience, mastery of HTML/CSS, and strong written justification skills.

Virtualization Expert needed to evaluate VMware Fusion applications on macOS for performance and usability. Responsibilities include developing user guides and collaborating with technical teams. Must have experience with VMware Fusion on macOS.

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.

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.

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.

Vision Review Specialist evaluates expert-written tasks, prompts, and golden outputs. This role assesses AI-generated content accuracy and depth to improve model reasoning. You will develop evaluation rubrics and provide structured feedback to research teams.

Backend Engineer role utilizing PyCharm on macOS for specialized application tasks. Responsibilities include Python development, debugging, and refactoring. Must have PyCharm on a Mac and experience with Python tools.

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.

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.

Senior Design Expert role involves conducting structured remote sessions to capture expert design thinking and evaluate design quality. Candidates need senior design experience in product, UX, or brand, and a clear view on shipping standards.

Product Design Expert role involving rapid prototyping, design system development, and cross-functional collaboration. Responsibilities include building tasks for AI-assisted development and UX/UI design. Requires 5+ years as a product designer or AI-native engineer.

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.

STEM Specialist role analyzing complex problems in physics, chemistry, mathematics, or biology to enhance AI model training. Requires a STEM degree and 1+ year of relevant experience.