Product Manufacturing Engineer

About Shellworks

At Shellworks, we’re on a mission to make plastic waste a thing of the past. We’re creating a new generation of materials - sustainable, high-performing, and designed to disappear. By reimagining how materials are made, we’re tackling one of the world’s most urgent environmental challenges.

About the Role

We are looking for a candidate to help productionise new products into mass manufacturing. You will work closely with Engineering in the development of products, ensuring products are validated and de-risked before production. As part of our fast-paced, collaborative environment, you'll have the opportunity to make a tangible impact on the planet while growing your expertise. If you're passionate about using your engineering skills to solve complex challenges and create a better future, this is the perfect role for you.

The Opportunity

This is a unique opportunity to work on scaling the future of packaging materials inspired by nature. When you join us you’ll get to:

• Bring new products to mass manufacturing by conducting product testing and validating for scale production.

• Improving internal product validation processes by developing a repeatable product validation process and streamlining activities.

• Implement best practices in physical product development, including documentation, change control, and other robust quality measures to ensure the highest standards of production quality and on-time delivery.

• Assist in coordinating aspects of new product development across a variety of projects in injection moulding, extrusion blow, and compounding.

• Work closely with our manufacturing partners, ensuring products meet cost, quality, and timeline expectations.

• Be the critical technical and project interface between sales, engineering, supply chain, suppliers, and customers.

• Collaborate on world-first projects across the molecular biology, mechanical engineering, product design and operations teams.

Our Ideal Candidate

• Degree in a relevant engineering discipline, such as materials science or mechanical engineering.

• You have over 2-4 years of proven experience in a relevant industrial manufacturing environment or in physical product development, ideally with exposure to polymers and plastic components.

• Experience with some of the following manufacturing technologies: injection moulding, blow moulding, compounding, or extrusion for plastic packaging.

• Experience in CAD - Onshape, Solidworks preferred.

• Experience in scaling production from prototype to high-volume manufacturing, with knowledge of both in-house and outsourced FMCG production being an advantage.

• Self-motivated and proactive, you thrive in a high-autonomy environment within a dynamic, early-stage start-up and excel in managing outsourced production partnerships and holding them accountable.

• Good written and verbal communication skills to communicate effectively to both partners and clients.

Our Benefits

23 days holiday + 27-31st December, in addition to all statutory and public holidays

Opportunities for growth and development as we expand and scale our impact

Access to a fully kitted out on-site lab and pilot line workshop

Competitive salary and equity options

Health benifits program inc. Cycle to Work Scheme

Regular social events and fully stocked office kitchen

Part of a tightly knit team aiming to make a meaningful social impact

Hiring Process

Initial Chat
Technical task
️ Onsite
Founder Chat

Our Values

It Can Be Done
We believe anything is possible. We're action-oriented doers who jump in to proactively solve challenges.

Masters of Our Craft
Driven by curiosity, we constantly expand our skills to deliver work that exceeds expectations.

Ambitious By Nature
We set ambitious goals and push ourselves beyond our comfort zones, taking ownership of the journey.

We're Singular
We operate as one cohesive team, valuing our diversity and putting the mission above egos or silos.

Signal > Noise
We bring purpose to everything we do and focus on what moves our mission forward

Join Our Mission
Becoming a part of Shellworks means being part of a team that’s passionate about sustainability and innovation. Our world-class team includes experts in materials science and visionary entrepreneurs dedicated to creating a better future. Together, we’re redefining what’s possible.

Are you ready to help us lead the way in sustainable materials? Apply now and be part of something truly impactful.