react English-speaking jobs in Braunschweig

The Chief Scientific Officer (CSO) for Advanced Staining leads the scientific strategy for IHC, FISH, and next-generation tissue-based diagnostic technologies. This executive role shapes innovation strategy, oversees R&D execution, and ensures global leadership in advanced staining and translational pathology solutions.

Senior Salesforce DevOps & Tech Lead will architect, build, and maintain CI/CD pipelines, providing technical guidance to development teams. This role focuses on establishing a reliable, automated release management culture across complex multi-org environments.

Lead the strategic and operational growth of a utility-scale battery energy storage systems (BESS) division. Manage a team, develop sales and business strategies, and drive the acquisition of large-scale projects.

Manages the implementation and sustainment of Lean principles across a manufacturing plant. Develops and executes a Lean roadmap, fosters a Lean culture, and leads continuous improvement initiatives. Requires a Bachelor's degree, 5+ years of Lean experience, and fluency in German and English.

Senior UX/UI Designer needed to design interfaces for desktop, mobile, web, and embedded applications. Develop design systems, user flows, and wireframes. Collaborate with teams to simplify user journeys and contribute to UX research and prototyping.

Freelance annotators review and classify text, images, or videos to train AI models. Projects may include rating content, evaluating accuracy, or identifying sensitive material. Requires a bachelor's degree, 1+ year of professional experience, advanced English proficiency, and strong attention to detail. Compensation is project-based and up to $22 per hour.

The COO will establish operations and deliver the company's first batch production plant, overseeing site selection, design, construction, and regulatory approval. This role will shape and execute the industrialization strategy, translating innovation into manufacturing capability.

International SOS seeks a Registered General Nurse to provide medical case management for TRICARE patients. Responsibilities include visiting healthcare providers, obtaining medical updates, and liaising with patients. Must have 3+ years of experience, Polish and English fluency, and a clean driver's license.

Serial entrepreneurs EWOR seeks ambitious EdTech founders to build and scale startups. Fellows receive funding, mentorship, and support in hiring, product development, and fundraising. Must be based in Europe or the Americas and fluent in English.

The Research Laboratory Molecular Child Psychiatry at the Carl von Ossietzky University of Oldenburg seeks a Research Associate to conduct molecular and cellular biology experiments. Responsibilities include planning, performing, and evaluating experiments, analyzing data, preparing manuscripts, and supervising students. Applicants must have a Masters degree or equivalent in a relevant field and a PhD in molecular psychiatry, neuroscience, or a related field. Practical experience with molecular biology techniques and statistical analysis is required.

Leads a team of HR Partners and HR Business Partners, partnering with site, business, and HR Leaders to strengthen culture and deliver business results. Translates PXT priorities into campus-level strategy, driving operational excellence and improving employee experience.

Leads and develops a sales team within a dedicated segment, acting as the Business Owner for its commercial performance. Develops and implements segment strategy, drives sales steering, and manages key accounts. Requires leadership experience, sales strategy expertise, and a strong understanding of market dynamics.

As an IT Business Partner, you will translate business strategy into IT demand and project roadmaps. You will act as the primary contact for business leaders on IT topics, manage demand and portfolio, and co-sponsor key IT projects.

Support efficient payroll operations and HRIS development. Coordinate payroll activities, review results, and improve processes. Administer HR systems, maintain employee records, and communicate with the Group regarding payroll and HRIS.

Support contract management by preparing, distributing contracts, and coordinating with stakeholders. Assist with administrative and compliance activities throughout the contract lifecycle.

Founder's Associate to work directly with the Founder & CEO of a venture-backed AI software company transforming commercial insurance.

Experienced Test Automation Managers and Test Managers are needed to support large-scale SAP/ERP programs in a highly regulated environment. Roles ensure compliant, effective, and high-quality testing processes.

Peroptyx seeks Data Analysts to review mapping data for digital applications. Responsibilities include verifying business information, distances, and ensuring route accuracy. Must be fluent in English and German, possess excellent research skills, and have strong local knowledge of Germany. Must pass an online exam and be willing to work a minimum of 10 hours per week.

As Business Impact Manager – Europe Strategic Initiatives & AI, you will lead complex regional initiatives, improve operational effectiveness, and accelerate AI-enabled ways of working. You will drive strategic initiatives, enable effective executive governance, and foster collaboration across functions.

Build Flip's consulting practice from the ground up, defining its operating model, methodology, and commercial motion. Run pre-sales consulting engagements to drive deals and post-sales value realization projects with existing customers. Codify successful engagements into reusable target operating models for core verticals.