ruby English-speaking jobs in Stuttgart

Senior Marketing Manager Performance & Growth owns end-to-end UA for web/mobile, managing budgets against ROAS/LTV. Responsibilities include scaling, finding new audiences, and building tracking processes. Requires 5+ years in performance marketing, strong data skills, and fluent English/good German.

Sr. Site Activation Specialist performs country-level clinical research site activation tasks. Responsibilities include managing site contracts, regulatory documents, and ensuring adherence to SOP and GCP guidelines. Requires a relevant degree and fluent German.

Senior Attorney Contracts leads end-to-end contracting for data center commercial activities. This role owns high-value deal negotiation, develops contract frameworks, and provides pragmatic legal partnership to sales and project teams.

Lead and manage the global internal audit team, conducting risk analysis, executing the audit plan, and evaluating controls. Drive process improvements and manage SOX compliance. Requires 10-12 years of audit experience and a CPA or equivalent.

Lead AI Engineer to design, build, and ship generative AI and agentic solutions for clients. Contribute across the full development lifecycle, from prototyping to production deployment. Requires 3-5+ years in AI/ML engineering with German C1 proficiency.

Advise clients on US and international tax matters, including PFICs and CFC structures. Requires CPA/US Tax Attorney status, US tax law knowledge, and fluency in English and German.

Design, craft, deploy, and maintain the Settlement and Revenue platform end-to-end. Requires 3+ years in Backend/algorithmic cloud engineering with Python, strong SQL, and full business proficiency in English.

Key Account Manager for E-Commerce to manage B2B customers like Zooplus and develop the D2C online shop. Requires 3-5 years of FMCG e-commerce sales experience and strong German/English skills.

Software Engineer needed to build and own features across frontend and backend, turning user problems into software. Requires 2+ years of experience shipping web applications and comfort with AI development.

Own product and enablement for AI software. Build customer-facing applications and internal tools. Ensure quality across software and ML capabilities. Requires broad backend/infra experience, strong Python, and modern frontend skills.

Intern supporting the HR Service Team across the Employee Life Cycle. Responsibilities include administrative tasks like contract preparation and handling working hour changes. Requires excellent German and English skills, and study in Psychology or Business Administration with an HR focus.

Marketing Manager to own Hololight's written content and channels. Responsibilities include SEO, paid campaigns, PR, and organic social. Requires B2B marketing experience, HubSpot proficiency, and fluency in English and German.

Clean and prepare aerospace components following defined procedures and quality standards. This role requires experience in a controlled environment, attention to detail, and the ability to work independently while completing documentation.

Intern in Global Sourcing & Procurement supports purchasing processes, from provider identification to contract arrangements. Candidates should study business administration or industrial engineering, be fluent in English, and have German proficiency.

Master's thesis on what-if reasoning in LLM agents for HEMS parameter evaluation using Time-Series Foundation Models via MCP. Investigate connecting TSFMs to LLM agents for intelligent energy management.

Lead Treasury for a growing retail company. Responsibilities include leading Treasury & Payment Operations, overseeing liquidity management, and strengthening governance. Requires experience in Treasury/Payments and hands-on leadership.

Database Systems Evaluation Expert role requires 5+ years of database internals experience or a PhD. Responsibilities include designing engineering tasks, building correctness checks, and evaluating performance measures.

Assist with clinical trial design and analysis, coordinating trials and maintaining documentation. Requires a scientific/healthcare degree, clinical research knowledge, and fluency in German and English.

Founding AI Engineer building multi-agent systems for construction. Focus on agent harness engineering and project memory. Requires full-stack skills in TypeScript/React and production LLM experience.

Ruby on Rails Engineer to develop and improve the private markets platform end-to-end. Work with Ruby on Rails, Heroku, PostgreSQL, Redis, Sidekiq, Git, and AWS. Design REST APIs and write clean, tested code.