(Senior) Process Development Engineer

Are you looking for a career in an inspiring, global environment where your expertise makes a difference? At Neste, you will be working for the world’s leading producer of renewable diesel and sustainable aviation fuel, which enable our customers to reduce their greenhouse gas emissions. We are looking for you, (Senior) Process Development Engineer to our Renewables Processes team in Porvoo. As a (Senior) Process Development Engineer, you will be in a key role in supporting the continuous improvement of our existing renewable products refineries in Finland, the Netherlands and Singapore. As a subject matter expert, you will develop safe and feasible process concepts and processes, perform technical design or simulations/modelling or perform technoeconomical evaluations, and/or acting as the project team leader. You will be a contributor to our SAF production growth strategy and the development of Neste’s pretreatment and/or upgrading processes. In our team, you will also contribute to the production sites' operational troubleshooting, develop new process concepts in low carbon, or renewable technology through supporting technology development and investment projects. Together with your ambitious contribution, we can do meaningful work to drive Neste forward. The job is located in Kilpilahti, Porvoo, which is about 30-45 minutes by car from the capital region. We organize free bus transportation to Kilpilahti for our employees from the capital region, Porvoo and the nearby areas. It is possible to work partly remotely through our hybrid working practice. Reasons to join We operate in an inspiring and evolving business environment as a global leader in renewable fuels. We contribute to Neste’s success by living our values every day: we care, we have courage, we cooperate. We prioritize safety at all times and in every location. We strive to create a positive and impactful work environment. Transformation brings new possibilities and fosters our courage and curiosity. As a global company, we support personal development with versatile learning and career opportunities. Collaboration is key, and we believe in flexible, smart ways of working. We work at the office at least three days a week to ensure seamless teamwork and a sense of belonging. In addition, our benefits for employees in Finland include, for example, a personnel fund as part of the overall remuneration, good occupational health care, a membership in a sickness or health insurance fund and leisure time accident insurance. We also support leisure time activities, e.g. by offering benefits for sports and culture (ePassi). More About The Job Your role in our team Providing subject matter (technical) expertise to production site development initiatives, troubleshooting, projects and/or acting as a task coordinator Contributing to the early phase concept creation and the process design through later stages of projects Supporting R&D in experiment and pilot testing design Collaborate actively with a global network of process engineers, R&D specialists, modeling experts, and engineering disciplines to achieve Neste’s strategic goals Keys to success in this role M.Sc. degree in Chemical Engineering Work experience in relevant industry process engineering in the field of oil refining, petrochemical or chemicals Knowledge of thermochemical conversion, catalytic processes, or bioprocesses Understanding of process design activities (for example, material and heat balance calculations, equipment sizing) Understanding of processing of renewable or circular feedstock is a plus Interest and high motivation of digitalization and use of AI Fluent written and spoken command of English A hands-on, proactive attitude and a strong willingness to learn new technologies quickly Strong interpersonal, communication and self-leadership skills A responsible attitude with a safety-oriented mindset Let’s get you started We look forward to receiving your CV and application by September 27, 2026 . If you have any questions regarding the process or the position, please get in touch with Sören Sundblom, Manager, Renewable Processes, +358 50 458 3726, on Wednesday September 16th at 09:00-11:00 (EEST) or Monday September 21st at 13:30-15:00 (EEST). To ensure security and confidentiality, please submit your application through our recruitment system, as we are unable to consider applications sent via email. We will do our best to contact you within 2 weeks after the application time has ended. The recruitment process will include interviews and a potential aptitude assessment. The first interviews are preliminarily scheduled to take place on week 40-41. The person selected for the position must pass a health examination including a drug test. Depending on the position’s requirements, a security clearance may be conducted with your consent. Neste in brief Neste (NESTE, Nasdaq Helsinki) is the world's leading producer of renewable diesel and sustainable aviation fuel (SAF), with product