javascript English-speaking jobs in Mainz

The CMO Manager manages and oversees contract manufacturing activities with external CMOs, ensuring compliance with quality standards and regulatory requirements.

The Professional Marketing Lead will define, develop, and deploy scientific and professional marketing content for Central Europe. The role connects global professional strategy with local market activations and supports priority launches and initiatives.

Leads illicit trade prevention strategies in Germany, Austria, and Switzerland, safeguarding the company from legal and reputational risks. Manages investigations, builds intelligence packages, and engages with law enforcement and government authorities. Requires fluency in English and German and prior experience in combating illicit activities.

Software Engineer will design, develop, and deploy production-ready machine learning applications on AWS, Azure, and GCP. Collaborate with cross-functional teams to translate client needs into technical solutions.

As a Senior Customer Success Manager, you will support and advise customers on the application and integration of Skribble, ensuring successful rollout and maximizing value. You will also navigate business process changes, negotiate renewals, and identify expansion opportunities.

Develop, optimize, and industrialize manufacturing processes for high-performance composite components. Transfer prototypes into stable pre-series and series production. Collaborate with R&D, quality, and production teams.

Leads the analysis and integration of transcriptomic and multi-omics data, including RNA-seq and spatial transcriptomics, to support biomarker discovery and patient stratification. Develops and implements computational pipelines for processing and analysis of high-throughput sequencing data. Collaborates with cross-functional teams to interpret data and inform experimental design.

Lead technically complex projects for ASIC development in consumer electronics. Manage international teams, coordinate with external partners, and ensure projects meet scope, time, quality, and budget targets.

Operations Assistant needed for a fast-paced food-tech company. Own daily kitchen operations, logistics, and order flow. Execute under pressure, work with teams, and gradually take on catering and sales responsibilities. Must have a valid EU driver's license (Class B) and fluency in English.

Software engineer to build robust software systems for machine learning solutions on major cloud platforms. Translate client needs into technical solutions and collaborate with cross-functional teams.

Manages the full recruitment process, identifies and approaches candidates, develops sourcing strategies, and builds relationships with stakeholders.

Senior Digital ASIC Design Engineer will develop and implement digital modules and subsystems for Advantest's semiconductor testing solutions. Responsibilities include requirements gathering, architecture development, RTL coding, verification, and collaboration with cross-functional teams.

Live Shopping Host for The Wessex Mint on WhatNot, engaging a global audience of silver, gold, and collectible buyers. Host daily live shows, educate customers, and drive sales. Fluent English and German required.

Structural Engineer needed for diverse projects. Design, analyze, and ensure compliance with building codes. Minimum 3 years experience required. Fluent in German and English.

English-speaking Early Childhood Educators are needed for a new Fröbel Kindergarten opening in Berlin-Spandau in July 2026. Responsibilities include supporting all aspects of early childhood education and care in English, planning and implementing pedagogical processes, and collaborating with parents. Applicants must have native-level English, at least B2 German, and a recognized early childhood professional qualification in Berlin.

This role drives consumer-centric product development by applying statistical analysis to sensory and consumer data. Responsibilities include analyzing CAT and QDA projects, providing technical advice on sensory target setting, and establishing sensory methodologies. The ideal candidate has experience in sensory science, data analysis, and consumer testing.

Junior Sales Manager (m/f/d) needed for active sales of Petrochemical products in the B2B market. Responsibilities include contract negotiations, customer relationship management, and sales strategy development. Requires a degree in business/economics, chemistry, or a related field, plus one year of sales experience. Excellent communication and teamwork skills are essential.

The Max Planck Institute for Political and Social Science seeks a Postdoctoral Fellow to conduct research on the coexistence of violent orders and democracy. The project examines the relationship between political and economic institutions, political violence, and its consequences. The successful candidate will conduct quantitative and qualitative research, write academic articles, and contribute to the department's research environment.

Provides administrative support to ESO Astronomy Faculty, Students, Fellows, and Visiting Scientists. Organizes colloquia, seminars, and talk series. Assists with travel and accommodation arrangements and supports the Science Visitor Programme. Contributes to the planning and execution of events for Fellows, Students, and Visitors. Prepares budget reports, compiles statistics, and maintains databases.

Deliver groceries to customers efficiently by e-scooter or e-bike. Maintain a focus on delivery targets and exceed them. Earn at least €13.90 per hour plus tips.