1246 ux stepstone germany English-speaking jobs in Berlin

Game Tools & Modding Engineer needed to build high-performance, real-time applications. Responsibilities include developing engine features, rendering pipelines, and optimizing CPU/GPU workloads using C++ and graphics APIs like DirectX or Vulkan.

Develop and maintain 2D game features using Java and libGDX. Collaborate with AI specialists to design interactions and collect training data. Requires basic Java knowledge, libGDX experience, and understanding of game concepts.

Jr Game Developer Panda3D role requires Python and C++ proficiency to provide feedback on game development tasks using the Panda3D engine. Responsibilities include reviewing code, suggesting improvements, and documenting processes for AI training.

Contribute production-quality code, reviews, and documentation to open-source repositories. Design and optimize complex algorithms using Java, C++, Python, GoLang, Typescript, or Rust. Resolve technical challenges and collaborate with stakeholders.

CMO role driving growth and monetization for a weight-loss app using AI agents and automation. Responsibilities include developing scalable acquisition and retention campaigns, optimizing pricing, and analyzing data to achieve measurable results. Requires 4+ years of experience using AI tools.

Build the Arise Android app from scratch, owning the codebase end-to-end. Requires 4+ years of Android development experience, strong Kotlin knowledge, and experience building apps from the ground up.

Process-minded HR Intern to support People & Culture. Responsibilities include auditing employment files, assisting with recruitment coordination, and providing administrative support. Requires HR/Business degree, analytical skills, and interest in German employment law.

Own and scale the TikTok Shop channel for a D2C coffee brand. Manage affiliate growth, paid advertising, content, and conversion to drive predictable revenue. Requires 3+ years of TikTok Shop growth experience and strong analytical skills.

Senior Manager role involves leading case teams to formulate and implement strategic recommendations for clients. Requires analytical, leadership, and interpersonal skills, with a minimum of seven years of experience.

Senior Data Engineer to design and maintain scalable data pipelines for shop performance and retail media reporting. Requires 5+ years experience with advanced SQL, data transformation tools, and big data platforms.

Lead cost optimization for building systems at GROPYUS. Define strategy, develop methodologies, and drive cost competitiveness across product development, engineering, and manufacturing. Requires cost engineering expertise and leadership.

About Us 1GLOBAL is a technology-driven global mobile communications provider helping enterprises and consumer brands deliver seamless connectivity worldwide. Powered by a best-in-class telecom platform, proprietary eSIM technology, and its own mobile core network across 15 countries, 1GLOBAL operates as a fully regulated telecommunications provider in 43 countries.

Founders Associate role supporting a pre-seed/seed DeepTech fund. Responsibilities include fundraising support, investment analysis, innovation scouting, and ecosystem engagement. Requires a Bachelor's in STEM/business and strong analytical skills.

This 6-month fully funded fellowship helps founders implement AI into their businesses. Participants identify high-impact AI use cases, build automations, and apply AI to marketing and sales.

Join AVOMIND as a Talent Acquisition Erasmus+ Intern. Support recruitment strategies, source candidates via LinkedIn and Xing, screen applicants, and manage interview logistics. Requires Erasmus+ eligibility and strong communication skills.

Senior Full Stack Developer to architect high-performance B2B applications using Laravel and Nuxt/Vue. Own end-to-end feature implementation, integrating AI workflows to accelerate development velocity. Requires 4+ years experience.

Build internal systems to automate fund operations, including dealflow triage and knowledge management. Requires Python, APIs, and LLM/agent frameworks to ship end-to-end solutions.

Commis de Cuisine needed for absence cover. Prepare and cook dishes, maintain station organization, and support mise en place. Requires kitchen team experience and passion for fresh ingredients.

PhD student position focused on developing an open plasmonic platform with tuneable light-matter coupling in 2D systems. Responsibilities include sample fabrication, numerical simulations, and spectroscopic analysis. Requires an MSc in Physics or Optical Sciences.

Freelance Lecturer in Computer Science for IU International University. Teach fundamental knowledge, design courses, and conduct practical sessions. Requires a degree in Computer Science and C1 English.