developer English-speaking jobs in Sittard

Operations and Maintenance Technician ensures reliable operation of technical installations. Responsibilities include preventive/corrective maintenance on building services, electrical systems, and HVAC. Requires MBO Level 4 in Electrical Engineering and strong technical skills.

Experienced Datacenter Field Manager needed to lead onsite field technicians and subcontractors across multiple datacenter projects. Responsibilities include site surveys, installation coordination, and quality assurance. Requires 3+ years' experience and knowledge of network cabling and infrastructure.

Develop and maintain relationships with biogas producers, utilities, and industrial clients to execute commercial transactions across biofuels and biomethane. Identify new business opportunities in European renewable gas markets.

Experienced QA/QC Consultant needed to support laboratory refurbishment and equipment upgrades in a regulated environment. Responsibilities include reviewing URS, IQ, and OQ protocols, ensuring GMP/GxP compliance, and managing quality documentation. Requires validation or commissioning experience in pharma/biotech.

Lead end-to-end project management for complex projects, overseeing timelines and resource allocation. Drive cross-functional teams and manage client relationships while optimizing internal processes. Proven project management experience is required.

Senior Python API Expert needed for an enterprise technology team. Must have 6+ years of Python development experience with FastAPI, Flask, or Django REST Framework. Focus on designing secure, high-performance REST APIs and microservices using Azure and containerization.

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.

Senior Product Manager Murex for a large international financial institution. Develop and optimize the Murex platform for FX, Bonds & Rates trading and processing, linking Front Office and IT. Requires Murex Front Office knowledge and Capital Markets experience.

The Commercial Director drives revenue growth via strategic partnerships, B2B sales, and integrated marketing. This role oversees sales execution, customer management, product positioning, and marketplace management to maximize commercial performance.

Founding GTM/Founders Associate role at a fast-growing Dutch AI company. Own customer success, client onboarding, and building scalable processes. Translate client insights into product feedback. Requires fluent Dutch.

Founding Product Designer for a YC-backed AI company. Own the design of autonomous software, defining core interaction patterns and making complex AI behavior intuitive and trustworthy. Ship prototypes and build from zero.

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.

Product Engineer role focused on customer experience, experimentation, and conversion optimization. Responsibilities include designing and building A/B tests using Java and scripting, analyzing data with SQL, and leveraging AI/LLM tools.

Operations Training Specialist needed to support aftersales training program rollout across multiple brands. Requires 5+ years in automotive training, IMI-certified hybrid/EV training, and technical skills.

Senior API Security Engineer to strengthen API security for a banking client. Define and implement security standards, controls, and automated guardrails across a complex API landscape. Focus on authentication, authorization (OAuth, JWT, mTLS), and best practices.

Senior IT Engineer responsible for end-user support, automation, and infrastructure. Requires experience with Microsoft 365, Entra ID, Intune, networking, and scripting like PowerShell.

Junior Python AI Engineer to build agentic systems for an autonomous red-teaming platform. Requires hands-on experience with LangChain and LangGraph, RAG pipelines, and Python.

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.

This role combines corporate accounting and controllership with treasury and investment management. Responsibilities include financial reporting, internal controls, cash flow management, and deploying excess funds. Requires 8+ years experience and CPA/ACCA.

Thuisbezorgd.nl seeks Couriers to make deliveries. Must be 16+ and meet scheduling requirements. Depending on location, you may need your own e-bike or scooter.