freelance English-speaking jobs in Bonn

Shape and deliver the global product vision for building our energy business, defining how we provide, manage, and scale our energy offering across international markets. Develop and harmonize the technical setup, operational processes, and partner integrations that underpin our global energy business. Evaluate and anticipate developments across international energy markets to inform product design and strategic decisions. Collaborate with engineering, energy operations, trading, and partner teams to ensure successful implementation of our energy proposition. Define and monitor KPIs to track product performance, operational efficiency, and profitability. Collaborate with commercial, marketing, and sales teams to position our energy products effectively.

Lead and support technology transfers, scale-up, and process validation for drug product manufacturing, with a focus on Pre-Filled Syringes. Develop and execute scale-up strategies, conduct risk assessments, and design process validation strategies. Troubleshoot manufacturing challenges and contribute to continuous improvement initiatives.

Junior Manager Network Planning will plan and optimize FlixBus lines in collaboration with various teams. Responsibilities include coordinating cross-functional activities, managing communication with business partners, analyzing network performance, and presenting data-driven recommendations.

Provide strategic oversight and guidance on emerging technology trends and opportunities. Support executive teams in decision-making processes and evaluate technological growth strategies.

Freelance lecturer in Cyber Security IT Systems: Software needed for 48 teaching units starting October 1, 2026. Teach fundamental knowledge with practical relevance in software development, databases, operating systems, and data formats.

The Chief Financial Officer (m/f/d) will design, operate, and evolve the financial system for a rapidly scaling supply chain platform. Responsibilities include P&L, balance sheet, cash flow, and working capital management, as well as capital structure, financing, and M&A. The CFO will also own accounting, controls, and governance, and build and lead a high-performance finance organization.

Senior System Administrator will act as onsite technical lead for the Berlin office, ensuring smooth IT operations and driving improvements. Responsibilities include providing 2nd-level support, managing Microsoft 365 environment, server infrastructure, and leading IT projects.

Experienced Ubuntu OS Engineer/Architect needed to support a centrally managed solution for developers. Must have hands-on experience managing Ubuntu OS in an enterprise environment, including network and security setups.

The successful candidate will be responsible for developing and managing relationships with institutional investors across Germany, Austria and Switzerland, driving fundraising activities across the firm's private markets platform, with a particular focus on private equity fund-of-funds strategies and senior direct lending/private credit solutions.

This 12-month rotation program provides a versatile insight into various departments of BASF Services Europe GmbH. Trainees develop a personal development plan, work on projects, and gain experience at another BASF Group company.

Senior Product Designer to shape user experiences across Zenjob's platform. Design, prototype, and conduct user research to inform product decisions. Collaborate with Product Managers, Engineers, and Data partners. 4+ years of UX design experience with a strong portfolio demonstrating end-to-end product design work and measurable business impact. Fluency in German is a plus.

INIKTI seeks a native German speaker to establish and grow its business in Germany. The Country Representative / Business Development Manager will identify and secure new business opportunities in the wind energy sector, build strategic partnerships, and act as a market expert for INIKTI's leadership team.

The Chief Operating Officer / Chief Financial Officer (COO/CFO) is a senior leadership role responsible for translating the company's strategic plan into operational reality. The COO/CFO will own financial strategy, manage profitability, and oversee all accounting and reporting. They will also design and implement scalable processes, manage team and resources, and ensure legal and data compliance.

Founding Product Engineer / CTO to build and lead the technical foundation of a new AI-powered financial assistant for people under financial stress. Architect and build the mobile product (React Native, TypeScript, Tailwind), define backend architecture, and design infrastructure for secure financial data handling. Work with the CEO to turn complex financial data into intuitive user experiences.

Experienced BDD Tester Architect needed for a remote project focused on an AI-supported software development platform. Responsibilities include setting up Cucumber-based integration tests, creating Gherkin-based test scenarios, and integrating automated tests into Jenkins pipelines.

The Account Executive drives revenue expansion by developing and maintaining relationships with existing DocuSign clients. This individual contributor role reports to the Senior Manager, Commercial. Responsibilities include qualifying sales opportunities, positioning DocuSign's value proposition, and expanding the DocuSign solution beyond initial implementation. The Account Executive will also process sales orders, facilitate customer onboarding, and provide accurate reports and forecasts.

This thesis explores the use of acoustic metamaterials to shape sound beams for high-resolution detection of geometric features. The work will investigate the feasibility of focusing sound emissions and receiving the signal back to build a higher resolution image.

INIKTI seeks a native German speaker to establish and grow its business in Germany. The Country Representative / Business Development Manager will identify and secure new business opportunities in the wind energy sector, build strategic partnerships, and act as a market expert for INIKTI's leadership team.

Dentons Europe seeks a Europe Head of Opportunity Management to lead a Proposals and Credentials team. The role involves setting strategy, managing a team, leading major pitches, and collaborating with leadership to ensure a consistent go-to-market approach. The successful candidate will have significant experience in proposal management within professional services, a strong understanding of proposal technologies, and excellent stakeholder management skills.

Lead and evolve product strategy through AI, innovation, and streamlined collaboration. Collaborate with engineering and customer-facing teams to meet market demands and customer needs. Build, lead, and inspire product teams, fostering a culture of innovation and excellence. Proven track record in creating and implementing product roadmaps, driving product innovation and growth. Experience as a Chief Product Officer within digital marketplaces or relevant industries.