developer English-speaking jobs in Leidschendam

Leads the EMEA partner sales organization, developing and executing strategies to drive partner revenue growth and market expansion. Responsible for building and nurturing relationships with partners, including distributors, resellers, and service providers. Manages a team of partner directors and managers, overseeing performance and ensuring alignment with company goals.

Develop and evaluate an AI-based decision-support approach for hot-room allocation in slab logistics. The model will help optimize hot-room utilization, reduce crane movements, and improve energy efficiency.

Trein-vertraging.nl seeks an entrepreneurial intern to build its B2B engine. Responsibilities include identifying and mapping potential partners, reaching out to decision-makers, and qualifying leads. The ideal candidate is a sales-oriented student or recent graduate with strong communication skills and a proactive mindset. Fluency in Dutch is required, German fluency is a plus.

Repair sport products such as bikes, tents, fitness equipment, and watersport equipment. Receive, register, and repair products, order spare parts, and communicate with stores.

Data Scientist will design, train, and deploy models to predict risk, assess creditworthiness, and guide portfolio performance. Responsibilities include building credit risk models, analyzing risk drivers, and partnering with engineers to bring models to production. Requires 5 years of experience as a Data Scientist or Credit Risk Modeler and strong skills in Python and SQL.

Lead and inspire a team to achieve sales and profitability targets while delivering exceptional customer service. Analyze data, implement visual merchandising strategies, and manage talent within a fast-paced retail environment.

Construction Manager oversees the execution of construction projects, including planning, site management, subcontractor coordination, communication, quality control, safety management, risk mitigation, contract management, documentation, budget management, and post-construction oversight.

Design, build, and maintain modern Angular (13+/15) frontend applications within NX monorepo environments. Develop scalable web applications using Node.js, OAuth 2.0, GraphQL, and Apollo GraphQL Client.

The IFM Minor/Additional Works Coordinator manages a high-volume portfolio of small capital and operational works across a multi-site office and laboratory estate. The role ensures works are delivered safely, compliantly, and efficiently within live, operational environments.

Technical Product Manager II manages data integration projects for ALF solutions (Pure and Interfolio). Collaborates with customers to define project scope, gather requirements, and design integration solutions. Leads project delivery, communicates with stakeholders, and ensures solutions meet security and compliance standards. Requires 4+ years of experience in technical product management, API knowledge, and Agile methodologies.

The Financial Accountant (Capital Markets) will support and oversee financial operations for a portfolio of entities, ensuring accurate financial reporting, financial control, and compliance with regulations. Responsibilities include developing financial statements, performing regulatory reporting, and ensuring compliance with GAAP and other financial laws.

This role combines sales associate duties with marketing and impact coordination. Responsibilities include providing excellent customer service, supporting daily store operations, leading community engagement initiatives, and executing marketing campaigns.

Develop mobile interfaces in Flutter for the 433 app and interactive football content. Collaborate with teams to build smooth, fast, and intuitive user flows. Optimize app performance and contribute ideas for navigation and visual feedback.

Develop software to improve design, manufacturing, and wiring processes. Translate user needs into software specifications and own the full software development lifecycle.

Automation Engineer needed for design, development, and maintenance of electric motion and control systems. Responsibilities include configuring servo drives, developing safety PLC applications, and designing electrical and control systems. Requires a Bachelor's degree in a related field, experience with Beckhoff TwinCAT, and fluency in English.

JOBWELL B.V. is seeking motivated and reliable individuals for warehouse, production, or cleaning roles in the Rotterdam region.

The Solutions Architect will design and document technical solutions for NEP's TFC platform, collaborating with the VP, Global Platform Solutions & Delivery, and internal teams. This role focuses on creating scalable, consistent architectures that align with the platform strategy and delivery frameworks.

Develop and maintain web applications using React, TypeScript, and Tailwind CSS. Collaborate with cross-functional teams in an Agile/Scrum environment. Minimum 5 years of experience as a Front-End Developer required.

Contribute to the strategic direction and governance of a non-profit organization dedicated to improving the lives of homeless people in the greater The Hague region. Participate in board meetings, review reports, and collaborate with the operational team on topics such as quality of care, risk management, and fundraising.

Lead a team of 15-20 employees in a production environment, ensuring cost, quality, delivery time, and personnel goals are met. Responsible for production schedules, order process monitoring, and coaching team members. Bachelor's degree or equivalent required, along with leadership experience in production and knowledge of ERP systems.