developer English-speaking jobs in Leidschendam

Medior/Senior Data Engineer to own the data engineering domain. Responsibilities include building ETL workflows, maintaining data quality, and improving data models using Python, Scala, and GCP. Requires 3-5 years of experience.

Senior Process Engineer to scale proprietary sensor technology from lab to pilot production. This hands-on role translates R&D processes into stable, manufacturable flows, focusing on thin-film and deposition steps. Requires 5+ years of semiconductor processing experience.

Sales Development Support role to grow Expertum's customer base. Responsibilities include prospecting, qualifying leads, and supporting sales activities for SAP partnerships. Requires commercial experience and fluency in Dutch and English.

Experienced Clinical Research Associate supporting Phase I–IV studies. Oversee site progress, ensure data quality, and maintain compliance with Good Clinical Practice. Requires 1–2 years of on-site monitoring experience and strong Dutch/English skills.

Production Operator on manual lines in pharmaceutical manufacturing. Responsibilities include assembly, labeling, inspection, and packaging while adhering to GMP and SOP requirements. Requires 2+ years of production experience and strong attention to detail.

Proactive intern needed to support business development for a ceramic architecture firm. Responsibilities include building prospect lists, researching decision-makers, managing the CRM, and preparing client pitches. Requires strong communication and interest in design.

Civil Engineering CAD Designer to create 2D/3D drawings for public spaces, roads, and drainage. Requires knowledge of AutoCAD and Civil 3D, and a vocational qualification in Civil Engineering or similar field.

Founding Account Manager for a fast-growing SaaS venture. Focus on new business development, pipeline building, and closing deals. Drive commercial strategy and build sales processes with high autonomy. Requires sales experience and an entrepreneurial mindset.

Senior Backend Engineer specializing in TypeScript, Python, or C#. Build and ship production services, design APIs, and make architectural decisions for scalable systems. Requires 5+ years of experience and strong system design instincts.

Senior Project Manager needed to lead complex projects across aerospace, automotive, rail, and energy. Requires 5+ years in PM, expertise in PMBOK/PRINCE2/Scrum, and skills in Lean Six Sigma.

Dutch-Speaking KYC Analyst needed for a technical service provider. Responsibilities include performing KYC and CDD on medium-complexity client files, applying Dutch legal frameworks, and providing client support via email in Dutch. Minimum 2 years of KYC/CDD experience required.

Marketing and Content Intern to support a variety of marketing activities including content creation, market research, and campaign support. Must have strong writing skills, a commercial mindset, and an interest in sustainability.

Experienced Interim Financial Accountant needed for an international pharmaceutical organization. Focus is resolving finance backlog and standardizing processes across AP, AR, GL, and reporting. Requires strong accounting and process improvement skills.

Asset & Spare Parts Specialist supports asset and maintenance activities, ensuring effective spare parts and process management. Requires experience in asset or spare parts management and a technical background.

Experienced E&PA Design Leader needed for water projects. Responsible for design direction, quality, and budget monitoring within multidisciplinary teams. Requires 5+ years in electrical engineering/process automation with strong Dutch and English skills.

Operations Execution Manager leads operational interventions for a global datacentre security program. This role manages teams, ensures site readiness, and drives performance improvements across high-risk operations. Requires 5+ years in security operations or leadership.

Technical Project Manager oversees end-to-end delivery of smart store solutions. Responsibilities include translating client needs into hardware solutions, managing hardware lifecycle, and providing technical support. Requires 3-5 years of experience and full proficiency in Chinese and English.

Business Development Intern supporting expansion in German-speaking markets. Responsibilities include market research, lead generation, and assisting with outreach campaigns. Requires fluency in English and German.

Maintenance Technician responsible for maintaining advanced robotics, machinery, and conveyor systems in an automated distribution center. Requires previous maintenance experience, skills in mechanical and electrical operations, and basic software understanding.

Junior Sales Representative role in international recruitment. Responsibilities include business development, talent matchmaking, consulting, and headhunting across IT, Engineering, and Life Sciences. Requires fluency in Dutch, German, or English.