qa English-speaking jobs in Bussum

Manage client relationships and execute public relations strategies. Develop and implement PR plans, secure media coverage, and draft communication materials.

Experienced software engineer needed to build and maintain mission-critical trading systems. Responsibilities include developing trade reconciliation, financial reporting, and security systems. Must have experience with high-volume data processing and a strong understanding of financial data integrity.

Design and safeguard robust solution architectures for a dynamic IT/OT environment. Translate business and operational requirements into scalable architectural designs. Ensure solutions align with enterprise architecture standards and comply with architectural guardrails. Collaborate with stakeholders to meet strategic and operational objectives.

Sales Engineer to drive commercial growth in the Benelux region. Identifies and converts new project opportunities, develops relationships with key stakeholders, and promotes engineered solutions. Requires previous sales experience in a technical product environment and an existing network across the Benelux. Fluent English and Dutch are essential.

The IRIS2 End-to-End System Architect provides system engineering leadership for ESA's IRIS2 program, ensuring coherent system architecture across space, payload, ground, and external interfaces. The role shapes optical and RF communication solutions, supports major engineering reviews, and contributes to system-level modeling and performance assessments.

Service & Maintenance Engineer performs inspections, preventive maintenance, and repairs on NIJL's docking systems and access platforms worldwide. Requires technical expertise in mechanical assembly, hydraulics, pneumatics, and electrical systems. Strong customer service and communication skills are essential. International travel is required.

Lead the go-to-market strategy for Semrush's Data as a Service (DaaS) products, including pricing, packaging, and product launches. Develop and execute a customer storytelling strategy, leveraging market insights and competitive analysis to drive new and expansion MRR. Collaborate with product, marketing, sales, and customer success teams to ensure alignment on priorities and KPIs. Build and mentor a high-performing product marketing team.

Platform Engineer to contribute to engineering space and provide skills for development of cutting-edge products. Troubleshoot, monitor, and optimize Backstage performance. Support CI/CD integrations and pipelines using Azure DevOps. Operate and support Backstage in Azure Public Cloud environments. Develop, customize, and maintain Backstage plugins. Partner with Platform Engineering and DevOps teams to deliver self-service automation.

Software Engineer to design, develop, and optimize ultra-low-latency trading systems. Build and optimize high-frequency, low-latency trading systems for new and existing markets. Collaborate with quants and traders to implement sophisticated trading strategies.

You will create meaningful welding experiences for customers, using your passion and expertise to build genuine connections. You will offer a personalized service, welding bracelets and charms that reflect each customer's story. Previous experience with welding, soldering, or jewelry is required.

Leads and manages the maintenance organization, ensuring safe, reliable, and cost-effective operation of technical assets. Develops and implements maintenance strategy, manages maintenance programs, and drives continuous improvement.

Senior Java Developer to design, develop, and maintain scalable microservices in a banking domain using Spring Boot and Azure.

Global Demand Planner translates market intelligence and business strategy into a robust demand plan. You will validate statistical forecasts, integrate customer-level data, and collaborate with stakeholders to ensure alignment across Supply Chain, Finance, Regulatory, and Business Units.

As a Process Specialist within MSAT, you support manufacturing operations as a process and product Subject Matter Expert. You work closely with production teams and clients to ensure smooth execution of manufacturing runs, provide technical support during deviations, and contribute to continuous process improvement in a dynamic Cell & Gene Therapy environment.

Engineering Coordinator Construction oversees the timely delivery of engineering documentation for assigned projects. The role involves planning, coordinating, and supervising engineering work, ensuring alignment with project goals and regulatory requirements. Requires fluency in English, a relevant Bachelor's degree, and a minimum of 5 years of experience in ship/superyacht construction.

Service Performance Manager will oversee performance and delivery of key service contracts within the CREFS NL domain. Responsibilities include monitoring KPIs, steering service outcomes, translating strategic ambitions into actionable service improvements, and mitigating risks. The role requires expertise in real estate and facilities services, supplier performance frameworks, and integrated contract management.

Provides EMC engineering support to ESA projects throughout all phases of development, including requirement definition, design reviews, test plan development, and troubleshooting. Conducts EMC testing, analyzes results, and supports research and development activities. Requires a PhD or master's degree in a relevant engineering domain and expertise in EMC analysis and testing.

Sales Manager to build pipeline and fuel expansion for Nuvei for Platforms in Europe. Qualify leads, support outbound campaigns, and collaborate with marketing and product teams. Fluent English + one European language (German or French preferred). 2+ years sales, business development, or customer success experience.

Senior Machine Learning Engineer to design, build, and operate production-grade forecasting models. Full ML lifecycle ownership, including data ingestion, feature engineering, deployment, and monitoring. Architect scalable ML infrastructure and partner with product, engineering, and customers. 6+ years experience building and deploying forecasting models required. Strong foundations in software engineering and ML engineering best practices. Experience with time-series modeling, feature engineering for temporal data, and uncertainty estimation. Hands-on experience with explainability and stakeholder-facing model communication. Strong Python skills and experience with tools such as scikit-learn, Prophet, TensorFlow/Keras, XGBoost, LightGBM, Spark, SQL, and Airflow. Cloud experience (Azure preferred).

PhD position in behavioral, environmental, and/or development economics. Conduct independent research on how artificial intelligence can foster sustainable development.