1396 ux stepstone germany English-speaking jobs in Berlin

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.

Federal Certified Materials Specialist/Incident Analyst role requires expertise in energetic materials and propulsion. Responsibilities include writing prompts, evaluating model responses, and analyzing dual-use scenarios. Must have forensic lab identification experience.

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.

Firmware Engineer role requires 5+ years in software, firmware, FPGA, or embedded systems. Responsibilities include evaluating embedded firmware, FPGA/RTL designs, and analyzing hardware/software integration for real physical systems.

Database Systems Evaluation Expert role requires a PhD or five years of database-engine internals experience. Responsibilities include designing engineering tasks, building correctness checks, and evaluating performance measures.

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.

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.

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.

Evaluate Unreal Engine functionality and performance on Windows. Capture high-resolution screenshots (>2.5MP) and collaborate with technical teams to enhance 3D applications for virtual production.

Develop and optimize agentic search systems for production. Own relevance and retrieval processes, quantify system impact, and build data infrastructure. Requires experience with production search and agentic search.

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.

This contract role requires hands-on experience running creator or influencer programs. Responsibilities include designing task briefs, reviewing AI agent attempts, and evaluating AI-generated marketing content to improve model performance.

Data Engineer role requires 2+ years of experience building ETL pipelines, data warehouses, or distributed systems. Use AI coding agents to complete and evaluate complex data engineering tasks, identifying bugs and scalability issues in model outputs.

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.

Develop and optimize agentic search systems for production. Own relevance and retrieval processes, quantify system impact, and build data infrastructure. Requires experience with production search and agentic search.

Preclinical R&D Expert needed for ADC & Bispecific programs. Review R&D data, label scientific data, and advise on development decisions. Requires 5+ years of hands-on preclinical R&D experience with drug assets and ADCs/bispecific antibodies.

Materials & Engineering Specialist role requires senior expertise in materials science or engineering. Responsibilities include authoring domain tasks, building grading criteria, running model tasks, and collaborating to define domain quality.

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.

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.

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.