software English-speaking jobs in Leidschendam

Freelance Graphic Designer needed to create high-volume static ads for paid social channels like Meta. Requires strong design skills, proficiency in design tools, and ability to iterate quickly based on performance insights.

Senior Project Manager for complex offshore wind projects. Lead large-scale topside projects, managing schedules, budgets, and stakeholders. Requires 10 years of project management experience, preferably in offshore engineering.

Food Technology Scientist to scout, test, and scale novel processing methods for plant-based snacks. This role bridges lab R&D and full production, optimizing taste, texture, and shelf life. Requires a Master's or PhD in a related engineering field.

Risk Engineering Consultant to deliver risk management and loss prevention services. Responsibilities include site risk assessments, reporting, and supporting underwriting. Requires engineering/risk experience and fluency in Dutch and English.

This People & Business Operations role handles administrative and operational tasks. Duties include recruitment, HR support, bookkeeping, invoicing, and coordinating third-party services. Requires English and Dutch proficiency.

Experienced Full-Stack Software Engineer needed for a 6-month contract. Must have strong commercial experience in both Java for back-end services and React for front-end applications. Responsibilities include development, maintenance, and end-to-end ownership.

Senior Offensive Security Engineer conducts penetration testing and vulnerability assessments to improve platform safety. Responsibilities include threat modeling and reviewing technical designs in large engineering environments.

Mechanical Engineer to design custom machines and technical installations. Translate specs into 3D CAD models and drawings, collaborating closely with production. Requires MBO+/HBO in Mechanical Engineering and 3D CAD experience.

Experienced Account Manager needed to drive growth across Benelux & EMEA for specialty ingredients. Manage key accounts, develop growth strategies, and lead commercial negotiations. Requires B2B sales success in chemicals/ingredients and fluency in Dutch.

HSE Manager needed for a Netherlands-based civil engineering contractor. This hands-on role monitors safety across multiple civils projects, including data center construction. Requires experience with civils packages and English proficiency.

Senior API Security Engineer to join a central security platform team in a regulated financial environment. This hands-on role secures complex APIs, driving strategy, standards, and automated guardrails across the organization.

Finance Intern role for 3rd or 4th-year students in Finance, Accounting, or Business Administration. Support Accounts Payable/Receivable, reconciliations, financial reporting, and process improvements for 6+ months.

Field Service Engineer installs, services, and maintains Vantive products. This role involves customer relationship building, sales support, and adhering to quality and safety standards. A technical degree and strong communication skills are required.

As a Sports & Outdoor Buyer, you decide on brands and products, following trends and consumer behavior. You negotiate deals, drive sales, margin, stock, and returns, managing the entire process from initial contact to final result.

Senior Creative Strategist to own paid advertising ideas and strategy for a DTC home care brand. Develop high-performing concepts, hooks, and messaging across Meta and TikTok, blending consumer psychology with commercial thinking.

Key Account Manager to manage and expand the client base in the oil and gas industries across Europe. Responsibilities include driving sales growth, building client relationships, and negotiating contracts. Requires an Engineering degree and proven sales success.

Manufacturing Operator executes production tasks safely and accurately following approved procedures. Requires MBO education, fluency in Dutch and English, and a detail-oriented style for structured environments.

HRBP role supporting the Netherlands team, combining HR Business Partnering and Office Management. Responsibilities include full-cycle recruitment, managing the employee lifecycle, and establishing local HR processes. Must be fluent in English and Mandarin.

Procurement Compliance Expert needed to clear PR/PO backlogs, ensuring compliance with Dutch labor legislation like Wet DBA. This role involves assessing workforce engagements, challenging stakeholders, and improving procurement governance.

Quality Assurance Specialist needed to maintain and improve the site QMS, ensuring GMP, EXCiPACT, and ISO 9001 compliance. Responsibilities include document control, product release support, change management, and leading investigations. Requires a degree in a relevant science and QA experience in regulated industries.