developer English-speaking jobs in Leidschendam

International Inside Sales Consultant to drive new projects for the Cyber Physical team. You will develop proposals, act as a technical bridge, and manage opportunities using CRM systems.

REACH 1st line support technician needed for installing, configuring, and maintaining hardware, software, and networks. Requires NATO SECRET clearance, experience with end-user devices, and ITIL foundation.

Senior iOS Mobile Security Analyst role focusing on MPoC and EMVCo evaluations. Responsibilities include mobile penetration testing, security architecture analysis, and source code review. Requires iOS security knowledge and experience with mobile payments.

Experienced SAP SD OTC Consultant needed with expertise in European VAT, indirect taxation, and import/export processes. Configure and optimize OTC processes, pricing, and billing while ensuring compliance across European markets.

Operator in the food industry responsible for setting up, operating, and monitoring production lines for snacks. Duties include quality checks, resolving malfunctions, and supporting colleagues. Requires MBO level and at least 2 years of Operator experience.

Production Operator responsible for ensuring smooth and efficient production of well-known soft drinks. Duties include operating, setting up, and troubleshooting production machines while maintaining quality standards.

Drive INTERSPORT's international growth by identifying, evaluating, and establishing new market opportunities. This role develops business cases, secures strategic partnerships, and advises on emerging market expansion.

Senior Business Analyst for Digital Assets & Capital Markets. Lead requirement discovery across DeFi and TradFi, translating needs into functional specs. Define end-to-end workflows and support Agile ceremonies. Requires 7+ years experience in Capital Markets and Digital Assets.

Datacenter Support Engineer provides escort support and performs basic monitoring of data center equipment performance. Responsibilities include taking operational readings, adhering to safety and security policies, and assisting with maintenance and troubleshooting.

As an AI Data Trainer, you will create, annotate, and review text, image, and video training data for Large Language Models. You will analyze data, identify issues, and collaborate with scientists and engineers to improve guidelines and optimize model performance.

Account Executive / GTM Engineer role owning revenue outcomes and building GTM systems. Requires technical skills with AI/APIs and fluency in Dutch and English.

Coordinate and guide a warehouse team in a dynamic fashion logistics environment. Monitor KPIs, ensure SOP adherence, and optimize workflows while leading daily activities. Requires logistics experience and strong English/Dutch skills.

Highly driven Operations Manager needed to lead daily front-of-house, service, and production support. This hands-on role requires ensuring service quality, efficiency, and guest experience in a fast-paced environment.

AI Engineer role focusing on building scalable logic engines and integrating AI into the SDLC. Requires full-stack skills (.NET/C# or OOP) and experience with complex domain logic.

Executes spare parts delivery process by tracking orders, coordinating logistics, and communicating with clients and the sales team. Supports the Supply Chain Manager.

Senior Systems Engineer to lead complex optical and high-tech system development. Responsibilities include defining requirements, managing technical risks, and coordinating multidisciplinary engineering teams. Requires a Master's degree and 10+ years of experience.

Sustainability Management and ESG Consultant needed to bridge sustainability expertise with IT systems. Advise on ESG reporting, translating challenges like CSRD into data and process solutions. Requires 5+ years in sustainability consultancy.

Business Development Manager to guide new partners through the Barter platform, from demo to active user. Responsibilities include lead follow-up, onboarding support, and maintaining CRM data for international growth.

Quantitative Researcher to build and refine systematic high-frequency market-making and alpha strategies for NSE markets. Requires deep HFT experience, PnL track record, and fluency in Python, R, kdb+/q, and/or C++.

Fluent French and/or Dutch-speaking Live Chat Agents are needed for a remote role. You will be the first point of contact for customers of leading automotive brands, handling inbound chat enquiries. No prior experience is required.