react English-speaking jobs in Braunschweig

Consultant Neonatologist provides expert neonatal care to critically ill and premature infants in a private medical facility. Responsibilities include clinical assessments, treatment plans, procedures, and collaboration with multidisciplinary teams.

Leads, coaches, and develops Key Account Team Leads across the UK, Italy, Spain, and Germany. Owns the European Key Account revenue target and defines and refines the Key Account playbook across all four markets. Partners with Product, Marketing, and Solutions Engineering to refine SumUp's value proposition for large-scale European merchants. Establishes a structured management rhythm across Team Leads focused on high-value deal progression.

Experienced Client Site Manager needed for large-scale Converter Station development. Oversee site activities, manage contractor performance, and ensure adherence to HSEQ, quality, and program delivery standards. Strong construction, technical, and stakeholder management skills required.

Senior Software Engineer to build and scale a product cost intelligence platform using a modern full-stack architecture. Develop end-to-end features, design software systems, and collaborate with product, data, and customer teams. 3+ years of software development experience with TypeScript/Node.js/Next.js or similar stacks required.

Manages content, UGC, and communication for the Dutch market. Identifies, contacts, and manages Dutch UGC creators. Coordinates content production with the Creative Team, freelancers, and Performance Marketing team. Supports website and marketing asset localization into Dutch.

Founders Associate Intern will explore and develop new business models on Joy_'s AI Commerce infrastructure, bringing promising ideas into production. Tasks include prototyping, testing, and validating applications, building AI-enabled processes, and owning creative initiatives.

Integration Engineer (m/f/d) for Collaborative Combat Aircraft projects. Supports the definition of the ADS Mission System, tracks project progress, and coordinates with Procurement and suppliers. Requires a completed engineering degree and experience in systems integration and test. Fluent in German and English.

Research Associate or PhD Candidate focused on membrane biochemistry and lipid analysis, specifically macrophage ferroptosis in myocardial infarction.

Senior Analyst to support M&A, investments, and strategic initiatives within the German healthcare market. Requires 3-5 years of experience in transaction advisory, corporate finance, or corporate development. Strong analytical skills, financial modeling experience, and fluency in German and English are essential.

Provides administrative support services, coordinates monitoring and evaluation activities, and supports supply chain management.

Process Engineer responsible for optimizing injection molding parameters, supplier management, commissioning, and project participation.

Intern to create social media content, analyze trends, and manage social media channels. Requires marketing coursework, social media experience, and proficiency in English.

Design and implement state-of-the-art responsive applications within the ORBIS U framework. Define and design new products and re-work existing ones. Conduct user testing with product managers and perform design reviews. Collaborate with local and international product teams.

Provide comprehensive operational and administrative support to executive leadership. Serve as primary liaison between internal teams and external stakeholders. Manage complex scheduling, coordinate meetings, and plan events.

Working Student to support the Transfer Pricing and Tax Team in daily operational activities, including corporate tax and transfer pricing tasks.

Develop creative concepts and campaign ideas for social, influencer, and integrated marketing initiatives across regional and global projects. Lead creative thinking for Amazon Prime Video accounts, elevating the creative standard and ambition of the work.

Graduate Mechanical Engineers will assist in the design, installation, and commissioning of mechanical systems on large-scale data center projects. Responsibilities include reviewing drawings, coordinating site works, and ensuring compliance with standards.

Field Service Engineer to support customers across Europe. Install, test, and qualify semiconductor equipment. Provide technical support, troubleshooting, and repair. Develop solutions for product reliability improvements. Bachelor's degree in electrical or mechanical engineering and 7+ years of experience in semiconductor or related fields required.

Global Summer Internship Programme in Frankfurt. Support research for executive search mandates, develop candidate pools, and conduct market research. Bachelor's or Master's student in a relevant field with strong analytical skills and proficiency in Excel and PowerPoint. Fluent in English and German.

Senior Technical Asset Manager to oversee operational solar PV and BESS assets across Europe. Drive performance improvements, manage external providers, and ensure compliance.