Senior Mechanical Engineer

Rocsys; Rijswijk; On-site; EUR 66,960 - 83,700; Full time

Benefits offered by this job

Hybrid working model

Employee stock option plan

Salary range 6000–7500 EUR per month

25 vacation days

Bicycle plan

Free daily vegetarian lunch

Job summary

Rocsys, based in the Netherlands, seeks a Senior Mechanical Engineer to drive mechanical development for autonomous charging solutions. You will own from concept to production-ready designs, creating robust, manufacturable hardware and contributing to scalable robotic tech.

You will collaborate across Mechanical, Electrical, Software, Manufacturing, and Supply Chain, delivering practical, high-quality solutions with ownership and continuous improvement as core values.

Qualifications

• Bachelor’s or Master’s degree in Mechanical Engineering or equivalent.
• 5+ years of mechanical product development experience.
• Experience taking products from concept through production.
• Strong 3D CAD design experience (SolidWorks preferred).
• Experience designing mechanical or mechatronic systems.
• Solid understanding of manufacturing processes for production.
• Experience with prototypes, testing, validation, and design improvements.

Responsibilities

• Own the mechanical design and development of systems for Rocsys products.
• Translate concepts into detailed designs, prototypes, and production-ready solutions.
• Develop robust mechanical solutions, including actuators and sensors.
• Support prototype builds, testing, validation, and continuous improvement.
• Drive improvements in reliability, performance, cost, and manufacturability.
• Apply DFM and DFA principles to create scalable solutions.
• Collaborate with manufacturing and supply chain teams to ensure producibility.
• Work with cross-functional teams to ensure integration of mechanical, electrical, and software components.
• Coordinate with external engineering partners when needed.
• Contribute to engineering processes and technical standards at Rocsys.

Skills

Mechanical product development

3D CAD design

Prototyping & testing

DFM / DFA

Robotics environments

Education

Bachelor’s or Master’s degree in Mechanical Engineering

Tools

SolidWorks

Sheet metal design

Welding

Aluminium casting

Job description

Help us build the future of autonomous charging

At Rocsys, we are accelerating the transition to sustainable mobility by making electric vehicle charging easier, smarter, and more scalable. We develop autonomous charging robots that enable electric vehicles to connect and charge without human intervention.

By combining mechanical engineering, soft robotics, computer vision, and intelligent software, we create reliable robotic solutions that help fleets electrify faster and operate more efficiently.

As a Senior Mechanical Engineer, you will play a key role in designing and developing the next generation of Rocsys products. You will turn innovative concepts into reliable, production‑ready hardware and contribute directly to the technology that is shaping the future of electric mobility.

You will work on complex mechanical challenges, from early concepts and prototypes to scalable products. With a high level of ownership and close collaboration across disciplines, you will influence the design decisions that define the reliability, performance, and future growth of our autonomous charging technology.

Who we are

Rocsys is an international team of engineers, developers, and business professionals building the future of autonomous charging.

Our headquarters are located in the Netherlands, with a team in Portland (US). We combine the ambition and innovation of a scale‑up with the challenge of solving complex technical problems that have real‑world impact.

We believe great products are built by great teams. We collaborate openly, learn continuously, and bring different perspectives together to create reliable solutions.

Your impact as Senior Mechanical Engineer

As a Senior Mechanical Engineer, you will own the mechanical development of key components and systems within our autonomous charging solutions. From early concepts and prototypes to production‑ready designs, you ensure our products are robust, reliable, manufacturable, and scalable.

You will collaborate closely with multidisciplinary teams including Mechanical Engineering, Electrical Engineering, Software, Manufacturing, and Supply Chain. Together, you will solve complex engineering challenges and continuously improve our products.

Your expertise will directly contribute to building charging technology that enables the transition towards more sustainable transportation.

In this role, you will

Design and develop innovative hardware

• Own the design, development, and optimization of mechanical systems and components for Rocsys products.
• Translate concepts into detailed designs, prototypes, and production‑ready solutions.
• Develop robust mechanical solutions, including mechatronic components such as actuators and sensors.
• Support prototype builds, testing, validation, and continuous improvement based on test results.

Improve reliability and scalability

• Drive improvements in product reliability, performance, cost, and manufacturability.
• Apply Design for Manufacturing (DFM) and Design for Assembly (DFA) principles to create scalable solutions.
• Collaborate with manufacturing and supply chain teams to ensure designs can be produced efficiently.

Collaborate and contribute to engineering excellence

• Work closely with cross‑functional teams to ensure smooth integration between mechanical, electrical, and software components.
• Coordinate with external engineering partners when additional expertise or capacity is needed.
• Contribute to improving engineering processes, technical standards, and ways of working within Rocsys.

What you bring to Rocsys

You are an experienced mechanical engineer who enjoys solving complex technical challenges and bringing innovative products from idea to reality. You combine strong engineering fundamentals with a practical mindset and enjoy working in an environment where ownership, collaboration, and continuous improvement are key.

Your experience and knowledge

Required experience

• Bachelor’s or Master’s degree in Mechanical Engineering or equivalent experience.
• 5+ years of professional experience in mechanical product development.
• Experience taking products from concept phase through development and into production.
• Strong experience with 3D CAD design (SolidWorks experience preferred).
• Experience designing mechanical and/or mechatronic systems.
• Solid understanding of manufacturing processes and design considerations for production.
• Experience working with prototypes, testing, validation, and design improvements.

Technical expertise that is valuable

• Experience with sheet metal design, welding, plastic components, or aluminium casting.
• Experience applying Design for Manufacturing (DFM) and Design for Assembly (DFA) principles.
• Experience with simulation tools such as SolidWorks Simulation.
• Experience working in robotics, automotive, or other high‑tech product environments.

Your way of working

• You take ownership and enjoy driving projects forward.
• You are hands‑on and combine analytical thinking with practical problem solving.
• You are proactive and comfortable making technical decisions.
• You enjoy collaborating with different disciplines.
• You communicate openly and constructively.
• You are flexible and energized by working in a fast‑growing and innovative environment.
• You are willing to occasionally travel within the Netherlands and to the United States.

What we offer:

• The opportunity to work on a unique robotic product at the forefront of electric mobility.
• A high‑impact engineering role where your designs directly influence the product.
• The chance to solve complex technical challenges and see your work move from concept to real‑world applications.
• A collaborative and informal culture with passionate colleagues.
• A one‑year employment contract, with the intention to offer a permanent contract after successful collaboration.
• A 32–40 hour work week with flexible working hours.
• A hybrid working model.
• Employee stock option plan.
• Salary range 6000‑7500 euros per month, depending on experience.
• 25 vacation days, with the option to purchase 5 additional days.
• Bicycle plan.
• Free daily vegetarian lunch at the office.
• Wednesday afternoon drinks.
• An easily accessible office in Rijswijk.

*This role is based in the Netherlands. Applicants must currently reside in Europe and be legally authorized to work within the European Union.

Our company values

• We own it
• Relentlessly Inventive
• People with Passion
• Leave a Better Planet

We are keen to get to know you! Apply with your CV and a few words on why you would like to join Rocsys. We look forward to your application!