software English-speaking jobs in Leidschendam

Senior Quantitative Analyst will develop and maintain models for price calculation and scenario analyses, identify trends and risks, and translate analytical outcomes into business insights. The role requires advanced coding skills in R or Python, experience with relational databases and SQL, and an advanced degree in a quantitative discipline.

The G-STAR Global Digital Marketing team seeks a Paid Social Intern to support global social media campaigns. Responsibilities include planning and publishing campaigns, setting up conversion campaigns, briefing display partners, tracking results, and analyzing data.

Build the interfaces for Bonnie, an AI-powered restaurant assistant, including the dashboard, customer-facing channels, and configuration experiences. Develop with React, TypeScript, and AI tools like Claude Code, Codex, and Cursor. Collaborate with a UI/UX designer and own projects from concept to production.

The IT Business Partner serves as a liaison between business domains (e.g., Trade, Finance, HR) and IT, ensuring IT services support business processes and strategic priorities. This role translates business strategy into IT requirements, advises on technology decisions, and drives continuous improvement.

GL & Statutory Accountant responsible for general ledger management, period-end close activities, statutory reporting, and coordination of audit, tax, and compliance deliverables for the Dutch entity.

Maintenance Technician needed for continuous operation of chemical production facilities. Install, assemble, and maintain mechanical and industrial equipment. Diagnose and resolve malfunctions. Collaborate with team members. Requires MBO level 2 or 3 in a technical field and willingness to continue education.

Full Stack Developer to maintain infrastructure, provide technical support, and develop privacy-first features. 5+ years of Ruby software development experience required. HBO/WO level of thinking and working. Experience with test-driven development and tech startups.

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.

Junior Actuary for a talent program focused on accelerating career development within 24 months. Responsibilities include data collection, model development, financial reporting, and risk analysis. Successful completion typically leads to a permanent medior+ or senior position.

Manages patent filing processes, ensuring all formalities are met during the granting procedure. Collects, sends, and registers documents, submits applications, and monitors deadlines. Improves workflows, supports system development, and contributes to operational efficiency.

Paid, full-time internship starting September 2026. Create and manage social media content, including TikTok, Instagram Reels, and LinkedIn posts. Collaborate with the Social Media & Content Manager and Marketing team. Must be currently enrolled in a Bachelor's or Master's program, fluent in English, and have knowledge of Microsoft tools.

Are you passionate about sales, digital business, and helping companies succeed online? Join a global leader in customer experience and digital solutions as a Dutch‑speaking Digital Sales Consultant in Barcelona.

PhD candidate to investigate early damage detection in composite materials using Quantum Photonic Vibrometry and AI-driven vibration analysis. Will design experiments, analyze data, and develop AI models for damage detection and condition monitoring. Collaboration with academic and industry partners.

The Quantitative Investment Strategies (QIS) group within Asset & Wealth Management seeks an Analyst to contribute to the innovation and future growth of our volatility investing franchise. The role focuses on Systematic Volatility investing within our QIS Liquid Alternatives group and will involve portfolio research, portfolio construction, quantitative research on systematic volatility strategies, and collaboration with senior portfolio managers.

Lead a high-performing team of Quantum Success Engineers, managing day-to-day operations in EMEA and supporting expansion to APAC. Shape and execute service offerings, build processes, and oversee the customer lifecycle. Champion customer feedback and drive alignment with R&D and Account Managers.

Skilled working foreman needed for diverse construction projects. Lead teams, coordinate with planners and managers, and ensure quality workmanship.

Park Plaza Eindhoven offers 104 stylish rooms and suites in the heart of the City of Light, within walking distance of Central Station, Van Abbemuseum, and Strijp. The hotel is ideal for business trips and weekend escapes. As a Front Office Host(ess) , you will ensure guests feel welcome and cared for throughout their stay by delivering warm, attentive service at every interaction.

The Global Programmatic Campaign Manager implements and optimizes programmatic campaigns across Display, Online Video, YouTube, CTV, and BVOD. This client-facing role requires collaboration with internal and external stakeholders across multiple regions. Responsibilities include campaign setup, optimization, reporting, and quality assurance.

JetBrains seeks a Customer Success Engineer to guide engineering teams in adopting Kotlin for backend development. The role involves working with organizations to migrate, integrate, troubleshoot, and scale Kotlin adoption in production environments.

Manages the development and deployment of V2V planning and capabilities across the ATSC Plan & Deliver organization. Leads end-to-end process decomposition, aligns system and capability requirements, and partners with cross-functional teams to deliver global solutions.