frontend developer English-speaking jobs in Leeuwarden

Cyber Security Engineer will identify, assess, and mitigate information security risks across infrastructure, applications, and cloud environments. Responsibilities include vulnerability assessments, security testing, incident response, and advising engineering and business teams on secure design and threat mitigation.

Junior Mechanic will overhaul, repair, assemble, and upgrade marine propulsion systems. Responsibilities include disassembly, inspection, assembly, and testing of propulsion installations and components. Must have technical knowledge of mechanical assembly procedures and the ability to read and understand technical drawings.

This Research Assistant position supports a project investigating PhD candidate experiences at Maastricht University to improve social safety at the workplace. The role involves recruiting participants, organizing brainstorming sessions, gathering qualitative and quantitative data, and communicating with stakeholders. Applicants should have a Bachelor's degree in a related field, research experience, and strong communication skills.

Defines and drives ING's global security architecture and multi-year security strategy, ensuring security is designed-in across platforms and transformations. Sets security architecture standards and reference architectures for cloud, identity, data, applications, APIs, and infrastructure. Acts as security design authority, approving standards, patterns, and exceptions. Collaborates with business leaders, CIO domains, risk/compliance, data & engineering teams, and vendors. Builds and leads a team of security architects and strategists.

LegionellaDossier seeks a Frontline Customer Support Agent fluent in Spanish and Dutch to provide customer service via email, phone, and live chat. Responsibilities include resolving customer issues, escalating complex problems, and maintaining accurate records of interactions.

Accelerate your ML engineering career with our paid training program. Work as a ML(ops) engineer on challenging projects for clients like Lely, ING, ASML, or KLM. Develop production-ready, scalable machine learning systems, productionize models, and maintain ML pipelines.

840 gross per month | Hybrid Aon is in the business of better decisionsAt Aon, we shape decisions for the better to protect and enrich the lives of people around the world. As an organization, we are united through trust as one inclusive, diverse team, and we are passionate about helping our colleagues and clients succeed.

Research assistant to operate automated peptide synthesis platform, support projects, and develop synthesis protocols. Requires a University degree in Organic Synthesis, hands-on experience with solid-phase peptide synthesis, and experience with routine chemical analyses.

This role offers the opportunity to work up to 20 days per year from abroad and swap 3 national holidays for non-national ones.

Provides administrative support to a team within the NATO Communications and Information Agency (NCIA). Duties include maintaining a knowledge management database, assisting with meeting planning, and managing office policies and procedures. Requires 2+ years of relevant experience or 4+ years with a secondary education. Must have excellent communication and time management skills. Valid National or NATO Secret security clearance is required.

Lead the evolution of the TSH masterbrand, turning brand strategy into design systems across print, digital, and physical spaces. Direct external agencies and build an in-house design team.

The Industry Advisor for Construction & Real Estate Industry supports sales pipeline growth and customer engagement to secure revenue. Responsibilities include developing industry-specific business plans, driving awareness and demand, maturing pipeline opportunities, supporting deal execution, and supporting customer success realization.

Homologation Engineer needed for vehicle development. Analyze engineering changes, ensure regulatory compliance, and prepare test plans. Minimum 5 years experience in homologation, validation, or vehicle development required.

Mixing Operator responsible for blending raw materials into a finished product. Training provided, followed by independent work across three floors. Must be able to follow instructions, maintain machines, and speak, write, and read English.

Night Receptionist needed for the largest hostel in the Netherlands. Responsibilities include supervising safety, handling check-ins/check-outs, and performing administrative tasks. Must be able to work independently, remain calm under pressure, and communicate in Dutch and English.

This role focuses on data pipeline development and maintenance for open-source data collection. Responsibilities include designing, building, and iterating on hybrid AI-human workflows for data extraction and processing from various sources. The position requires Python proficiency, familiarity with ML concepts, and experience with data manipulation and APIs. The candidate will also support field and HQ data collection teams with tools and training.

Logistics Employee at GLS contributes to package sorting by loading, unloading, scanning, and inspecting goods. The role requires MBO 2 level thinking and working, proficiency in Dutch or English, and flexibility for rotating shifts.

LegionellaDossier seeks a Frontline Customer Support Agent fluent in Spanish and Dutch to provide customer service via email, phone, and live chat. Responsibilities include resolving customer issues, escalating complex problems, and maintaining accurate records of interactions.

Regional Visual Merchandiser will champion brand standards, coach store teams, and ensure visual displays align with seasonal guidelines. Responsibilities include floorplan creation, seasonal changeovers, and training store staff on brand presentation. Must have 10+ years of visual merchandising experience, fluency in English, and be willing to travel.

Analyzes operational and technical performance across vessels and equipment, leading improvement initiatives and translating data into actionable insights.