software English-speaking jobs in Leidschendam

Software Engineer C#/C++/JAVA develops and tests software for high-tech products and machines, supporting customers in semiconductor, analytical instrumentation, and medical equipment industries.

Develop and execute the commercial strategy and product portfolio roadmap for the Residential offering. Collaborate with manufacturing, sourcing, engineering/R&D, sales, and senior management to maximize growth and return on investment. Own the commercial success of the portfolio through market analysis, target market definition, and growth plans.

Senior Enterprise Application Engineer will enhance and maintain enterprise applications, contributing to Booking.com's operational efficiency. Responsibilities include business analysis, stakeholder management, systems design, technical incident management, automation, and ensuring production system best practices. Requires experience in software development (Java, SQL, Python), managing SaaS applications, and cloud technologies.

The Principal Capability Engineer will join the Air Command and Control (AirC2) Business Area in The Hague, Netherlands. This role will focus on strategy and planning, requirements definition and management, and systems development management for AirC2 capabilities and services.

Senior Software Engineer to design, build, and lead development of a next-generation Live Debugger for JVM systems. Focus on safe, AI-first debugging of production systems with a mix of JVM tooling, program analysis, and AI integration. Requires extensive experience with Java, Kotlin, and JVM systems, enterprise backend software, and Kubernetes/cloud environments.

As a P&C Business Partner, you will provide HR support to managers and employees, including recruitment, training, and absenteeism management. You will also contribute to P&C projects and organizational development initiatives.

Senior Full Stack Engineer to build and develop finance backend services on AWS serverless systems. Collaborate with cross-functional teams to shape technical direction and establish engineering practices. Experience with TypeScript, AWS, and API-first systems is required.

Field Marketing Executive to support events, digital, customer, and partner marketing activities in the Netherlands. Collaborate with stakeholders to define and execute marketing campaigns, manage events, and measure campaign effectiveness. Requires experience in B2B SaaS marketing, copywriting skills in Dutch and English, and proficiency in Salesforce, HubSpot, and other marketing tools.

Develop and deliver an experimental setup for pre-conditioning light in gravitational wave cavities within the MEROPE project. Design, build, and test an adaptive optical system, simulate light absorption and thermal effects, and document results.

Inspect high-quality, single-piece components in a high-tech production environment. Experience with NDT techniques (FPI, Eddy Current, X-ray, Ultrasonic) and processes such as EDM, laser drilling, plasma coatings, and heat treatments is required. Must have a VMBO or MBO-level education and a Level 2 certification in one or more NDT techniques.

Intern Marketing & Event Manager to coordinate and execute events, collaborate with partners, and develop marketing campaigns.

Inspect high-quality, single-piece components in a high-tech production environment. Experience with NDT techniques (FPI, Eddy Current, X-ray, Ultrasonic) and processes such as EDM, laser drilling, plasma coatings, and heat treatments required. Must have a VMBO or MBO-level education and a Level 2 certification in one or more NDT techniques.

Microsoft Access Consultant needed for a 6-month contract to support the delivery, optimization, and rollout of a business-critical internal database solution.

As a Portfolio Risk Analytics Specialist, you will develop and enhance quantitative models to analyze and mitigate risks. You will conduct research, build tools, and advise on risk management strategies, including options hedging and physical asset modeling.

Full Stack Engineer to build scalable backend applications, APIs, and microservices for bespoke digital products and platforms. Experience with .NET, Python, Node.js, React, Vue, Angular, Svelte, Next.js, REST APIs, GraphQL, SQL/NoSQL databases, and cloud platforms (AWS, Azure, Google Cloud) required.

Build and maintain data pipelines for an AI-driven marketing platform. Design, improve, and scale pipelines using PySpark and Databricks. Collaborate with data scientists and developers to ensure data quality and reliability.

Technical Product Lead for the Customer Data Platform, translating business and product requirements into scalable data platform solutions.

Drive commercial performance and exceed revenue targets for Locke & Cove properties in Amsterdam and The Hague. Lead a balanced approach to revenue generation, combining account management and new business development. Implement sales strategies, manage client relationships, and provide market insights.

Senior Product Manager will lead the evolution of the Payments (Transact) platform, ensuring seamless payment experiences for players. Responsibilities include defining strategy & roadmap, improving reliability, and building scalable systems.

Manages international logistics flows, coordinating outbound transport across Europe. Oversees transport planning, carrier allocation, and delivery performance. Coordinates international shipments, including customs documentation.