developer English-speaking jobs in Leidschendam

Quality Specialist Development provides strategic QA oversight for CMC teams in developing innovative therapies for rare diseases. Requires 6+ years in pharma/biopharma with strong GMP knowledge.

One Identity DevOps Engineer needed with 5+ years in DevOps and 8-10 years in IT. Must be experienced in One Identity Solutions and possess a good Information Security background. VB.NET, C#, and Powershell knowledge is preferred.

Develop data models and generate business insights using cross-sector data sources and analytics tools. Responsibilities include reporting in Spotfire, data quality assessment, and translating business challenges into analytics requirements within an agile team.

Strategic Marketing Operations Manager to transform the marketing organization into a data-driven growth engine. Own the marketing technology stack, optimize processes, and drive automation, reporting, and operational excellence. Requires 7+ years of experience.

Customer Service Representative handling partner inquiries via phone and email. Responsibilities include order processing in SAP, managing complaints, and improving processes. Requires good command of English and German.

Own and grow strategic, high-value accounts in the DACH region for an HR tech company. Drive expansion revenue by managing inbound requests and executing outbound campaigns. Requires professional German and strong English skills.

Experienced AI Safety Red Teamer needed to identify vulnerabilities in frontier AI systems through adversarial testing. Responsibilities include designing prompts, uncovering model weaknesses, and evaluating behavior across high-risk topics. Requires 5+ years in AI Safety or related fields.

Manage newsletter and paid media campaigns across Meta, Google, and TikTok. Drive acquisition and retention by managing CRM roadmaps in Klaviyo and optimizing online sales. Requires 4+ years of experience and strong analytical skills.

Manage key telecom accounts in Benelux, driving sales performance for a portfolio exceeding €100M. Analyze data to develop strategic plans, negotiate terms, and ensure growth. Requires fluency in Dutch and English.

Information Security Officer ensures system security by assessing risks and advising teams on security controls. This role protects corporate and customer data, driving collaboration between business and IT teams. Requires relevant degree and 2-3 years' experience in a cloud environment.

Warehouse Operator at Samsung SDS handles order picking, packing, inventory management, and data processing across multiple departments. Requires physical fitness, English proficiency, and flexibility for shift work.

Visa Officer coordinates visa applications, immigration documentation, and travel for international personnel. Responsibilities include managing work permits and ensuring timely deployment for global projects. Experience with international visa processes is required.

German-Speaking Claims Associate supports German customers regarding lost, stolen, or damaged gadgets. Responsibilities include first point of contact via phone/email, assessing claims, and ensuring customer satisfaction. Fluent German (C2) and English (C1+) are required.

Assistant Professor role in Law, Security, and AI at TILT. Focus on research and teaching regarding AI's impact on law enforcement and national security, respecting fundamental rights. Requires PhD and experience in human rights/AI.

Experienced Network Engineer needed to design and operate ultra-low-latency network infrastructure for electronic trading. Responsibilities include owning routing, exchange connectivity, and building network automation using Python/Ansible. Requires expert knowledge of BGP, OSPF, and Arista/Cisco.

Senior Full Stack Payments Engineer to design and build highly available, cloud-native payment services on AWS. Responsibilities include architecting microservices, delivering full-stack solutions, and embedding AI-assisted development in a regulated environment.

Mid-Frequency Quant Researcher to generate and run intraday alpha end-to-end. Own the full research lifecycle, from hypothesis to live monitoring. Requires demonstrable MFT research experience and strong coding in Python or C++.

Seeking experienced AV Technician for full-time support. Responsibilities include setting up, operating, and troubleshooting enterprise AV systems and video conferencing platforms. Requires 3+ years of experience with technologies like Crestron and Extron.

Mid-to-senior Quant Trader needed to develop and scale systematic HFT strategies across liquid electronic markets. Requires 8+ years in proprietary trading with expertise in market microstructure and low-latency systems.

Lead platform engineering strategy, architecture, and infrastructure for a large-scale digital platform. Manage a multi-layered engineering organization, drive AI adoption, and partner with stakeholders to align technical and business priorities.