Senior Expert Chemistry and Substance Identification Delft • Haskoning

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Advising, chemistry, and product safety. This is you in a nutshell. Do you dare to contribute to the development of sustainable chemical products at Haskoning, an independent consultancy, engineering, and project management firm in over 150 countries? Read our vacancy for:

Senior Expert Chemistry and Substance Identification

Your goal as an expert in Chemistry and Substance Identification is to carefully and ethically advise companies and governments on how to responsibly and safely manage the risks of (hazardous) substances and products for humans and the environment. This way, you have a significant impact on our surroundings and the development of sustainable (chemical) products.

As a chemistry expert in the Center of Expertise Chemical safety, you are involved in or project leader for advisory projects on substances for the chemical industry, sectors, and various authorities, both national and international. This concerns projects for e.g. emissions, minimization and identification of substances of very high concern, waste treatment, regulatory dossier completion, including monitoring physicochemical studies at contract laboratories.

• With a strong track record and broad experience in Chemistry, regulatory affairs, REACH, and CLP, you contribute to ongoing projects and help shape future services. You also technically coordinate multidisciplinary projects—planning, distributing tasks, and guiding experts across Chemical Safety domains such as toxicology, ecotoxicology, occupational hygiene, and permitting.
• Maintain close contact with clients and stay attuned to market developments and regulatory changes. You keep the clients informed about the latest implications to their business.
• Profoundly understand client needs, connecting them with tailored solutions that align with regulatory requirements and support their conditions.
• Proactively identify and pursue new opportunities, by writing proposals and securing workload to the team.
• Collaborate closely with project managers to develop accurate project forecasts, including a detailed work breakdown structure (i.e. with budgeted hours that are both realistic and aligned with the project’s objectives).
• Establish efficient and effective project workflows, using your expertise and available resources, and provide clear instructions to the team members.

At Haskoning, you will join an independent, employee-owned international consultancy that combines engineering, design, and consultancy services with software and technology. Our mission, "Enhancing Society Together," drives us to create a positive impact on the world.

We offer purpose-driven and challenging work in diverse international projects, leveraging our 140+ years of expertise. With over 6,800 employees in more than 25 countries, we work together to turn challenges into opportunities and make a real impact on society. We collaborate with leading clients in markets such as infrastructure, climate resilience, renewable energy, decarbonisation of industry, and sustainable mobility.

Within the Business Line Industry & Buildings, we offer services, among others, in the field of chemical safety, HSE management, and external and integrated safety. Clients around the world benefit from our innovative approach and successful solutions in realizing their ambitions. If you are accepted for this position, you will become part of the Center of Expertise Chemical Safety where you will work with other chemists, (eco)-toxicologists, occupational hygienists and consultants.

Advisor and interested in environmental-related issues: You naturally take a leading role in your projects and within your knowledge group, where you prioritize tasks, distribute work effectively, and monitor progress to ensure high-quality outcomes. You are analytically strong, an excellent communicator, and a good listener who asks the right questions to uncover deeper insights. Your flexible work attitude allows you to adapt to changing circumstances and collaborate across various contexts.

You are capable of supervising medior and junior colleagues within your area of expertise, while also taking the lead or contributing as a valuable team member in multidisciplinary project teams. In addition:

• You hold a university degree in chemistry, biochemistry, chemical engineering, or a comparable field — ideally complemented by a PhD in a scientific discipline.
• You have at least 5 years of relevant experience working within the framework of, preferably, REACH legislation and you are proficient in using IUCLID for dossier preparation.
• You have proven experience in proposal writing and managing projects.
• You have in-depth knowledge of analytical techniques which are necessary to identify and quantify chemical substances and UVCBs (e.g. UV-Vis, IR, NMR, HPLC, GC).
• You are familiar with the ECHA guidance on substance identification and naming of substances under REACH and ideally have experience with outsourcing physicochemical studies at CROs in line with OECD guidelines.
• You are familiar with Read-across and QSAR predictions in line with ECHA guidelines.
• You are skilled in chemical risk assessment under REACH, including drafting registration dossiers, identifying data gaps and conducting literature reviews, assessing study quality (e.g., Klimisch scoring), proposing and overseeing additional research, managing physicochemical studies at CROs and reviewing physicochemical reports
• You have strong presentation skills and are confident in delivering expert statements and reporting results to clients — both in Dutch and English.

Haskoning offers a work environment where collegiality and the development of the organization and its employees are the most important factors. We work with a competence-based development and assessment system. The training opportunities are extensive. We are happy to help you pursue your ambition to further develop in the regulatory field and delve into innovative topics such as circular and sustainable economy, in-silico methods, and nanoparticles.

At Haskoning, we believe that the well-being of our employees is essential to our shared success. That’s why we offer a comprehensive benefits package designed to support both your professional development and personal well-being.

What we offer:

• A solid foundation: A competitive base salary with annual increases.
• An attractive compensation package: Including a strong pension scheme with an 18.3% employer contribution, a 2.15% personal budget, and annual profit sharing. You’ll also have the opportunity to purchase company shares and share in our success.
• Work-life balance: 28 vacation days (based on full-time employment), with the option to purchase an additional 16.5 days per year and to exchange three public holidays for days that are personally meaningful to you. We work in a hybrid model with flexible hours, a home office allowance, and a fully equipped home workspace.
• Development opportunities: A wide range of training and development programs, including tailored learning paths, learning weeks, and various knowledge-sharing groups.
• Travel allowance: A conveniently located workplace at one of our offices, Amersfoort (head quarter), Delft (largest Haskoning office) and Nijmegen (home office for most of our team members) with travel expense reimbursement and an NS Business Card. If you walk or bike to work, you’ll receive a higher travel allowance—encouraging sustainable commuting.
• Informal and inclusive culture: A welcoming and open environment with voluntary social and sports activities, and employee networks such as Pride and Young Haskoning.

Read more about our employee benefits here.

Do you have what it takes, and would you rather start today than tomorrow? Respond directly via the 'Apply' button. For more information about this position, you can contact Berend Mensink at or Maria Boeve, Recruiter Industry & Buildings, via email at via de button "Solliciteer nu" op deze pagina. or by phone at

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At Haskoning, we are committed to fostering a diverse and inclusive workplace where everyone feels valued, respected, and empowered. Our mission of "Enhancing Society Together" drives us to create an environment that embraces each individual’s unique background, identity, and perspective. Regardless of your experience, background, age, gender, or other personal characteristics—you are welcome here. We believe that diversity makes us stronger and that an inclusive culture gives everyone the opportunity to grow and contribute. Read more about our ED&I initiatives on our dedicated webpage.