618 English-speaking jobs in Berlin

PhD student will investigate microbiota-dependent pathways regulating colorectal cancer progression and metastasis in mouse models and human/murine intestinal organoids.

Analyzes payment and fraud trends, handles chargebacks and refunds, and supports B2C eCommerce operations. Requires commercial or financial background, eCommerce experience, and strong analytical skills.

Junior Java/Kotlin Engineer will join a team focused on improving the customer station experience. Responsibilities include driving product development, solving complex challenges, and collaborating with stakeholders. The role requires experience in backend engineering using a JVM language, understanding of testing principles, and knowledge of SQL and relational databases. Experience with Docker, Git, and frontend engineering is a plus.

Lead and develop the accounting team, stabilize existing structures, and build scalable financial processes. Ensure accurate financial reporting and compliance with HGB. Analyze and optimize accounting processes, drive standardization and automation. Collaborate with internal and external stakeholders.

Process Engineer (m/f/d) will develop and control the epitaxial growth of β-Ga2O3, perform process characterization, and establish quality control workflows.

Postdoctoral Researcher to contribute to a research program focused on improving the thermo-optical properties of Ge single crystals for infrared applications. The position involves advanced research in Ge crystal growth, characterization, and collaboration with industry and international partners.

Experienced Global Trial Leader needed for fully remote position. Accountable for planning, execution, and delivery of assigned clinical trials. Requires 5+ years of clinical trial management experience, strong project management skills, and expertise in Oncology, CNS, Immunology, or Vaccines. Masters Degree preferred.

Lead engaging live sessions and workshops on AI automation for B2B professionals. Guide participants through practical projects and provide mentorship.

Shape end-to-end product experiences across web and mobile platforms for B2C and B2B audiences. Translate insights into action through user research, experiments, and iterative design. Contribute to a multi-platform design system and collaborate cross-functionally.

Happy Mammoth seeks a part-time freelance Creative Strategist with a direct-response mindset for paid media (Meta-focused) campaigns. Develop performance creative strategy, translate data into creative decisions, and build testing roadmaps. Proven experience in performance marketing creative and direct-response copywriting required.

Lead Technical Writer will source and review software engineering documents, ensuring they meet quality standards and include features like diagrams and code snippets.

Simulation Engineer will optimize robotic workcells for automotive manufacturing, utilizing Siemens Process Simulate and other simulation tools. The role requires industrial robotics experience, technical adaptability, problem-solving skills, and project management abilities.

Innovate in optical connectivity, coordinate design efforts, instruct technicians, and coordinate product evaluation. Provide prototypes for customer meetings and develop reliable solutions using analytical design and problem-solving techniques.

Lead AI Engineer/Architect needed for a 12-month contract to build production-ready AI solutions for mid-market companies. Experience with AI consulting, client-facing delivery, recommender systems, GenAI, data platforms, or production ML is highly relevant.

Frontend Developer will translate ideas into features using React and Next.js. Responsibilities include implementing layouts, contributing to application design, documenting solutions, reviewing code, and running A/B tests.

Experienced Volunteer Manager needed for Germany's leading AI summit. Lead volunteer program from selection and briefing to on-site management during the June 2-3, 2026 event in Berlin.

Software Engineer evaluator creates datasets for training and benchmarking large language models. Responsibilities include curating code examples, evaluating AI-generated code, and collaborating with teams to enhance AI-driven coding solutions. Requires 3+ years of software engineering experience and expertise in Python, JavaScript, C/C++, Java, Rust, and Go.

Build and ship working software end-to-end using AI-native tooling like Claude Code, Cursor, Replit, v0, Lovable, or equivalents. Prototype, iterate, and demonstrate working software to users in days, not quarters. Apply judgment on quality calibration and hand prototypes to the integration engineering function.

The Data Analyst establishes data architecture, integration, and tools to support workforce planning and portfolio-level decision-making. Responsibilities include data integration, dashboard development, automation of reporting workflows, and data quality management.

Lead the evolution of an AI-powered healthcare platform, scaling from 150,000 to 500,000+ users. Define product strategy, roadmap, and operating model, driving impact and user value.