Manager, Technical Optimization

Are you our next creator of change?

Do you want to be part of creating solutions for mitigating climate change? At Neste, you will be working for the world’s leading producer of sustainable aviation fuel and renewable diesel. Together we will accelerate transformation for a more sustainable future.

We are looking for you,

Manager, Technical Optimization

to join our commercial Polymers and Chemicals team in Espoo, Finland.

The purpose of the commercial Polymers and Chemicals team is dedicated to tackling one of the biggest challenges facing the world today: the environmental impact of fossil-based materials. We have developed a powerful solution in Neste RE, a product that leverages renewable and recycled raw materials to replace conventional fossil feedstock in plastics and chemicals. By using waste and residues like used cooking oil and plastic waste, we are not only reducing the carbon footprint associated with fossil resources but also creating new value streams and contributing to a truly circular economy. 

As a Manager, Technical Optimization, you will play a pivotal role in supporting our customers and suppliers. You will create optimal solutions for both parties by translating technical requirements into viable commercial solutions. In this role, you will collaborate closely with a wide range of internal and external stakeholders, leading technical optimization activities across our global organization. Your in-depth knowledge and experience in steam cracking and polymer feedstocks will be essential as you help shape a new, sustainable industry. You will report to Saana Puumalainen, Head of Supply, Chemical Recycling, located in Espoo.

Reasons to join

Real impact right now. We create solutions for mitigating climate change and accelerating a shift to a circular economy. We live by our values every day; we care, we have courage, we cooperate.

Safety and caring. We value safety always and everywhere. We want our work to feel good and do good. At Neste, we nurture a culture where everyone is welcome and feels safe, respected and encouraged to be their unique true selves.

Exciting growth. Transformation brings new possibilities, fostering both courage and curiosity. As a global company, collaboration is the key, and we believe in flexible, smart ways of working. We support personal development with versatile learning and career opportunities.

In addition, our benefits for employees in Finland include, for example, a personnel fund as part of the overall remuneration, good occupational health care, and an extensive membership in a sickness or health insurance fund. We also support leisure time activities, e.g. by offering benefits for sports and culture.
 

More about the job

Your role in our team

• Technical support for sales and supply teams

  • Facilitation of Neste products fit to steam cracking operations and validation of renewable and circular feeds for material production

  • Customer-facing technical advisory for circular and renewable products and feedstocks

  • Value optimization on products and feedstock

  • Recognizing technical optimization opportunities and driving improvements

  • Close cross-functional alignment in quality related technical aspects across various units and organizations e.g. supply, R&D, production, logistics, operations, and sales

  
The best combination to success in this role

• A  deep technical background in steam cracking and polymer feedstocks (ideally PhD)

• Proven ability to translate technical complexity into commercial decisions

• Strong cross-functional understanding across R&D, supply, production, and sales (R&D background with a strong business acumen)

• A proven track record of supporting sales of polymers and chemicals and working with related technologies.

• Fluent in written and spoken English, and preferably in Finnish

In accordance, we believe in people who find new ways of doing things – people for whom safety and sustainability are part of their professional skills. Customer mindset is essential to all of us at Neste and we work hard to find the best solutions for our partners. We believe everyone is a leader and share a natural desire for collaboration. If all this, as well as our values on responsibility, cooperation, innovation and excellence resonate with you, you are the talent we are looking for.

Let’s get you started

We look forward to receiving your CV and application (with a salary request) by September 21st, 2025.

If you have any questions regarding the process or the position, please get in touch with Saana Puumalainen (+358 50 458 5047, saana.puumalainen@neste.com), Head of Supply, Chemical Recycling on September 17th, 18th or 19th at 12-16 EET.

Due to security and confidentiality, please submit your application through our recruitment system. Applications sent via email will not be considered.

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 possible aptitude assessment. The person selected for the position must pass a health examination including a drug test. A possible security clearance is obtained with your consent.


Neste in brief

Neste (NESTE, Nasdaq Helsinki) creates solutions for mitigating climate change and accelerating a shift to a circular economy. The company is the world’s leading producer of sustainable aviation fuel (SAF) and renewable diesel, enabling its customers to reduce their greenhouse gas emissions. Neste refines waste, residues and other renewable raw materials to high-quality renewable fuels at its refineries located on three continents. The company’s annual renewable fuels production capacity will be increased to 6.8 million tons in 2027.

Neste has high standards for sustainability and the company has consistently been recognized by several leading sustainability indices. In 2024, Neste's revenue stood at EUR 20.6 billion. Read more: neste.com