java English-speaking jobs in Mainz

Builds and manages a portfolio of 20 client relationships within a defined technical vertical. Leads the commercial lifecycle, from introduction to repeat business. Acts as a strategic advisor, identifying and pursuing new opportunities.

Working Student (m/f/d) in HR / Talent Acquisition will support the end-to-end recruitment process, including job postings, candidate sourcing, and interview coordination. Assisting hiring managers and the HR team in daily recruitment activities and maintaining applicant tracking systems are also key responsibilities.

Leads the development and execution of sales and market strategies for Data Center solutions across EMEA. Responsible for driving business growth, managing a sales team, and collaborating with internal stakeholders to achieve sales targets and market share objectives.

Regional Sales Manager for Milence's charging network in Southern Germany. Develop and execute sales strategies to grow presence within the fleet and logistics sectors. Identify prospects, cultivate relationships, and close deals.

Founders Associate Intern to support the development and validation of a Go-to-Market playbook, identify and scale sales channels, and build an AI-first GTM organization.

Customer Service Specialist will implement strategic initiatives, analyze and optimize processes, and develop solutions for complex challenges. Requires professional experience in customer service, strong communication skills, and fluency in German and English. SAP knowledge and advanced Excel skills are desirable.

Data Engineer will manage and operate Databricks and Azure Data Lake Storage. Responsibilities include building and maintaining data pipelines, supporting SAP Business Data Cloud (BDC) implementation, and defining data modeling standards. Requires a degree in computer science, business informatics, or equivalent, 5+ years of data engineering experience, and proficiency in Python.

Senior Global Brand Manager Women's Health will develop and implement brand strategies for Women's Health products, manage brand books, and lead product portfolio management. Requires a completed degree in Marketing, Business Administration, or a related field, several years of brand management experience, and proficiency in English.

The Digital Pathology Application Consultant provides Informatics & Workflow expertise to support and deliver solutions for anatomical pathology customers. This role involves leading customer needs analysis, solution design, and presentations, as well as advising on IT ecosystem improvements and handling technical objections. The successful candidate will have a university or professional qualification in a relevant field, knowledge of Mirth, HL7, PACS, DICOM, and fluency in German and English.

Regional Head of Accounting will manage and oversee accounting operations, ensuring financial record accuracy, regulatory compliance, and robust internal controls. This role involves supervising bookkeeping, coordinating closings, managing reconciliations, and preparing financial statements.

The Data Center Engineering Operations Technician ensures the delivery of best practice systems and problem resolution for data center electrical and mechanical infrastructure. Responsibilities include preventive maintenance, facility monitoring, and participation in data center build-outs and retrofits.

Project/Construction Manager to oversee a portfolio of residential development loans in Germany. Responsibilities include reviewing technical aspects of loans, supporting credit processes, managing consultants, and monitoring development progress.

Lead the 'AI Operator & Tooling Strategy' for N26 Marketing, integrating AI tools and automation to accelerate marketing workflows and enhance creative output. Develop and manage automated reporting frameworks to track team performance and operational efficiency. Design and deploy scalable processes and custom tooling to ensure consistency across global campaigns. Act as the primary advocate for AI within Growth, developing training frameworks and enablement sessions to empower team members.

Assist in strategic and operational tax activities, supporting business partners in tax planning and compliance. Support the Tax department in establishing governance processes and defending tax structures.

Experienced GRC Consultant to advise clients on EU and international compliance frameworks including DORA, ISO 27001, SOC 2, NIS2, and GDPR. Conduct gap analyses, guide implementation of compliance controls, and support clients in preparing for audits.

Facility Manager responsible for maintaining operational facilities, managing service providers, and driving continuous improvement plans. Experience in facility management, technical systems, and service provider management is required.

SySS GmbH, a leading IT security service provider, seeks an IT (Cyber) Security Specialist – Incident Responder to manage security incidents for clients. Responsibilities include handling breaches, threat hunting, digital forensic investigations, malware analysis, and staying current on security developments. Ideal candidates have at least two years of experience in DFIR, expertise in forensic tools and workflows, and strong communication skills.

Lead the SDV reference architecture and embedded software strategy for automotive Body SoCs. Define architectures, specifications, and roadmaps for embedded platforms. Drive microservices, event-driven, and SOA patterns for in-vehicle compute. Ensure safety and cybersecurity by design. Collaborate with OEM/Tier 1 architects, product lines, and stakeholders. Provide technical leadership and guidance to the automotive business line. Conduct market research and competitor analysis.

Manage and coordinate complex cross-border transaction tax engagements, providing guidance on mandates including tax due diligence and structuring. Develop and oversee tax-efficient planning aligned with client goals. Cultivate strong client relationships and guide junior team members.

Experienced Project Director/Lead needed for an 80MW, two-phase data center project in Berlin. Manage project lifecycle from construction to handover, ensuring alignment with budget, schedule, and quality. Lead multidisciplinary teams and interface with senior stakeholders. Proven data center project experience (50MW+) and strong electrical systems background required.