freelance English-speaking jobs in Mannheim

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.

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.

Experienced MEP Estimator needed for data center projects (€200m - €500m) in Germany. Prepare tenders, cost plans, and manage risk register. Data center experience and CostX proficiency preferred.

Security & Compliance Engineer with 8+ years of experience designing, implementing, and managing enterprise-grade cloud security solutions on AWS.

Unpaid, 3-month remote internship with Culture Vitale, a European startup focused on workplace wellbeing. Assist with marketing, sales, operations, events, and community management. Gain experience in social media, content creation, lead generation, and event coordination. Must be highly autonomous, organized, and comfortable with technology. Native German and fluent English required.

Senior Client Partner to lead client relationships across Europe, focusing on IT services for the Manufacturing industry. Requires experience in account management, deal pursuit, and client relationship management. Strong communication, negotiation, and problem-solving skills are essential.

Finance Manager to support month-end close, prepare financial information under IFRS and HGB, and assist with statutory and regulatory reporting.

Embedded Software Developer for automotive applications. Design, develop, and maintain embedded software solutions. Collaborate with customers, develop BSPs, and work on embedded Linux platforms.

The Energy Marshal oversees hazardous energy control and isolation activities in data center construction and commissioning projects. Ensures compliance with legislation, industry standards, and project procedures. Provides independent assurance and support to Authorising Energy Marshals, contractors, and operations representatives.

SAP Service Business Consultant will lead the rollout of S4 Controlling, analyze business requirements, and customize SAP applications. This role requires strong communication and collaboration skills to work with cross-functional teams and stakeholders.

The AVI-SPL Onsite Technician provides on-site support for integrated conference rooms and meeting spaces in Hamburg. Responsibilities include installation, maintenance, and troubleshooting of AV systems, as well as customer training and support.

Head of Process Engineering needed for a global pharmaceutical manufacturing business in Northern Germany. Provide technical leadership and expertise across manufacturing operations, including fermentation, lyophilisation, aseptic filling, utilities, and packaging. Lead root cause investigations, drive process optimization, and support equipment qualification and validation activities.

Experienced Consultant Pathologist sought to join established, profitable pathology institute in NRW as Partner/Shareholder (25% equity). Deliver high-quality diagnostic reporting across general pathology, contribute to clinical discussions, and participate in strategic planning.

Senior Search Marketing Specialist to manage and execute SEO and AEO campaigns for Finance clients. Develop content strategy, collaborate with cross-functional teams, and analyze search performance.

CASA Media seeks an Influencer Manager – YouTube to manage creator collaborations, build relationships with creators and agencies, and deliver successful YouTube campaigns.

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

IT & Network Engineer needed to provide IT support, manage network infrastructure, and maintain server rooms for a growing logistics company. Requires 3+ years of experience, strong technical skills, and professional Mandarin language proficiency.

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.

The Tax Product Manager defines and executes the product roadmap for tax services delivered to cross border institutional investors. Responsibilities include monitoring tax changes, defining tax servicing standards, executing the tax strategy, and managing client and competitor market research. The role requires expertise in German tax regulations, fluency in German and English, and experience in financial services tax.

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.