react English-speaking jobs in Braunschweig

RF Test Engineer to test, validate, and integrate RF systems for next-generation trapped-ion quantum computing platforms. Execute and develop validation protocols, debug RF components, and contribute to platform development.

Senior IT Product Owner for a business-critical, group-wide digital workplace product. Define product roadmap, translate stakeholder needs into improvements, and collaborate with IT teams and business leaders.

Join a small, agile team designing, coding, testing, deploying, and running production systems. Master's degree in Computer Science, Mathematics, or Physics required. Strong coding skills in C/C++, Python, or Java.

Experienced CSA Lead required for a major €300 million, 80MW multi-phase Data Centre project in Hattersheim, Frankfurt. Lead all CSA construction activities, manage subcontractors, and ensure project delivery according to specifications and HSE standards.

Lead the wellness, spa, and recreation operation of a prestigious Berlin luxury hotel. Manage teams, drive revenue, and ensure exceptional guest experiences.

Sales Executive to identify and engage potential clients, roofing constructors, and distributors. Responsibilities include planning sales initiatives, presenting products, building relationships, and negotiating deals. Requires 3+ years of field sales experience, strong communication skills, and fluency in German and English.

Volunteer advisor needed to support the development of an open ESG data platform. Provide guidance on data ingestion pipelines, parsing, transformation, and storage. Advise on data quality, infrastructure, and integration with AI/LLM workflows.

Drive revenue growth as an Account Executive for a rapidly growing AI-powered healthcare software company. Manage the full sales cycle, generate your own pipeline, and build relationships with operational decision-makers.

Operational Technical Buyer responsible for purchase process execution, order placement, and material tracking. Requires 2-3 years of experience in operational buying/material planning and familiarity with Oracle ERP.

Develop and maintain scalable .NET applications and microservices using modern architecture principles. Build and enhance ETRM solutions (Allegro/Horizon) supporting full trade lifecycle.

Leads product and design (20+ people) for a Berlin-based space tech startup. Defines product vision, strategy, and culture to achieve global market leadership. Reports to the Founder.

Credit Analyst (Associate / AVP) to support corporate lending activities for Asian corporate clients, with a focus on Japanese companies. Responsibilities include conducting credit analysis, preparing credit applications, and monitoring the corporate loan portfolio.

This part-time SAP Marketing Associate role supports marketing campaigns in Germany and Europe. Responsibilities include creating marketing content, managing social media, supporting lead generation, and researching market opportunities. German language proficiency is required.

Brand Designer to develop and maintain visual brand identity for the BAADER Group. Responsibilities include creating marketing assets, managing design templates, and ensuring brand consistency across all touchpoints. Requires a degree in communication or graphic design and 3+ years of brand design experience. Fluency in German and English is required.

HR Business Partner will support and develop HR processes, acting as a central point of contact for employees and managers in Germany and Austria. Responsibilities include payroll processing, employee support, personnel file management, and employment law consultation.

Support business process implementation and governance at Roche Diagnostics GmbH. Collaborate with stakeholders across various departments. Provide first-level support for business process and data management issues.

As a Payroll Solution Consultant, you will support the German sales team on payroll-related opportunities, lead product demonstrations, and validate solution designs. You will act as a trusted advisor on German payroll and compliance requirements, and contribute to building Personio's German payroll market presence.

Senior interim Omnichannel Orchestration Architect needed for a 6-month engagement with potential extension. Define technical and data foundation for omnichannel across CRM, web, content, and data in a global, multi-country environment.

Lead AI Engineer to design, build, and deploy production-grade AI applications and platforms. Develop agentic AI systems, LLMs, and autonomous workflows. Collaborate with founders and technical leadership to shape the company's AI ecosystem. Strong commercial experience building AI solutions and hands-on experience with LLMs and modern AI frameworks required.

Experienced Quality Assurance Manager needed to develop, implement, and maintain quality systems for major engineering and construction projects. Will lead audits, inspections, and quality reviews, ensuring compliance with contractual and industry standards.