developer English-speaking jobs in Leidschendam

Full-time game tester to join a QA team. Responsibilities include reproducing reported issues, finding and reporting bugs, cross-checking integrity and performance across platforms, and supporting developers. Must have excellent communication skills, a professional attitude, and experience with popular console platforms and Windows operating systems.

Leads the Apparel Product Management function within EMEA Local Creation, translating strategies into product plans and driving excellence in the product creation process.

Senior Method Transfer Specialist (Bioassays) will coordinate and execute analytical method transfers for large molecule products. This role involves leading transfer planning, collaborating with R&D teams, and providing expert advice during the pre-development and development phases of new product commercialization programs. The Specialist will also perform data analysis, contribute to analytical lifecycle maturity, and build relationships with cross-functional partners.

F&B Management Intern to support breakfast, lunch, and/or dinner service in a hotel restaurant. Assist with daily operations and learn from experienced management. Internship must be part of a formal hospitality program.

Senior Engineer (Cyber Security) provides oversight and support to Information Security and NATO CIS Security Accreditation activities. Duties include security design, risk assessments, security testing, and advising on security aspects for complex ISR information systems. Requires a NATO COSMIC TOP SECRET clearance, Bachelor's degree, and relevant experience.

Data Scientist will design, develop, and deploy statistical and machine learning models, focusing on Databricks and Azure. Responsibilities include building and maintaining solutions on Databricks, implementing MLOps best practices, and collaborating with engineers and business stakeholders.

Software Engineer will own the full stack of the clinician's experience, building and iterating on user-facing capabilities for the Attendi App and Studio. Responsibilities include building and iterating on user-facing capabilities, transitioning product interfaces to a modern SPA, expanding component ecosystems, and refactoring the Django codebase.

Experienced Python engineer to design, build, and deploy end-to-end AI solutions for major clients. Focus on scalable systems, from data to production, leveraging GenAI, cloud platforms, and MLOps.

Principal Engineer to develop and architect Mobile Service Cloud, a cloud-native contact center platform. The role involves backend development using .NET, SQL, and Entity Framework, as well as frontend work in Vue.js. Requires experience with Azure, Docker, Kubernetes, microservices, AI, and a team-player mentality.

Senior Full Stack Engineer to build AI-heavy product features and the technical foundation for a modern SaaS platform. Experience with Node.js, Next.js, LLMs, and AI infrastructure required.

Financial Officer (24 hours/week) needed to ensure accurate financial administration. Responsibilities include processing transactions, managing invoices, reconciling accounts, and preparing financial reports. Must have MBO education, 2-3 years of experience, and fluency in Dutch and English.

Tilburg University seeks an experienced project manager to oversee the ReproHub open science infrastructure project. The role involves coordinating with researchers, software engineers, and partners to build infrastructure that enhances research transparency and reproducibility.

Software Developer Quality Assurance intern will gain hands-on experience with the Kinaxis Supply Chain Execution application. Interns will write and execute automated test cases, collaborate with developers, and contribute to agile teams.

The Country Manager – Netherlands will lead the expansion of residential energy storage solutions in the Dutch market. This role involves developing distributor channels, managing B2B sales pipelines, and driving market penetration within the renewable energy sector.

Lead engagement with global resellers and TIC partners, navigating complex supply chains to achieve nature-positive outcomes. Manage partnerships that deliver measurable ROI for both Satelligence and partners.

As an MDR Threat Hunter, you will develop and improve detection use cases based on emerging threats and observed behavior. You will proactively hunt for threats, analyze logs and telemetry data, and translate threat scenarios into actionable detection logic. You will also define response actions and contribute to the evolution of the MDR detection strategy.

Leads a globally distributed team of project management professionals, delivering Awin's strategic portfolio. Oversees the strategic portfolio delivery, drives company-wide goal-setting, and leads executive reporting. Acts as a central connector across teams, ensuring alignment, influencing decision-making, and removing execution blockers. Develops team capabilities and fosters empowerment, continuous improvement, and learn-by-doing.

Global Strategic Sourcing Manager for Paper Categories, developing and executing sourcing strategies to achieve cost savings and manage supply risk. Builds and manages supplier relationships, identifies cost reduction opportunities, and ensures contract compliance.

Expert in Operational Resilience & TIPM, Tooling, Data & Reporting. Designs and delivers tooling, data, and reporting solutions for sourcing, resilience, and process architecture. Translates business and regulatory requirements into scalable solutions and ensures compliance with regulatory and internal requirements.

Interim QC Manager needed to provide leadership, structure, and stability to a critical QC team during a transition period. Focus on stabilizing team dynamics, improving engagement, and ensuring continuity of operations. Proven experience leading teams in QC, laboratory, or manufacturing environments required. Strong emotional intelligence and people leadership skills essential. Dutch language skills preferred.