Aerospace Design Engineer

About SII Netherlands

SII Netherlands is a fast-growing engineering and consulting company based in Haarlem, specialized in

mechanical design, stress analysis, and certification activities

across aerospace and high-tech industries.

We support leading clients on complex projects ranging from aircraft structures and interiors to space and defense systems, delivering full lifecycle engineering services—from concept to certification.

Your Role

As a

Design Engineer , you will be involved in the

full product development lifecycle , from early concept definition to detailed design and industrialization, in a demanding and highly regulated aerospace environment.

You will work in close collaboration with multidisciplinary teams (stress, systems, certification, manufacturing) to deliver robust and optimized engineering solutions.

Main Responsibilities

Develop high-quality

3D models and detailed engineering drawings

using

CATIA and/or SolidWorks

Design and detail

aircraft interior components and structural assemblies

(metallic and composite)

Perform

conceptual, preliminary, and detailed design activities

in compliance with customer specifications

Conduct

feasibility studies , define design concepts, and optimize existing systems (cost, weight, manufacturability)

Apply

Design for Manufacturing & Assembly (DFM/DFA)

principles to ensure efficient industrialization

Participate in

design reviews (PDR, CDR)

and provide technical justifications

Manage and coordinate

interfaces between systems and stakeholders , ensuring integration consistency

Prepare and review

technical and certification documentation

in line with aerospace standards (EASA environment when applicable)

Support

prototype manufacturing, assembly, and testing phases , including troubleshooting and design improvements

Perform

tolerance analysis and stack-up calculations

to ensure performance and reliability of assemblies

Your Profile

Bachelor’s or Master’s degree in Mechanical or Aerospace Engineering

2 to 5 years of experience in

mechanical design (aerospace or high-tech industry)

Strong expertise in

CATIA V5 and/or SolidWorks

Good knowledge of

aircraft structures, interiors, or mechanical systems

Understanding of

manufacturing processes

(machining, composites, assembly)

Experience in

GD&T, tolerance management, and design optimization

Familiarity with

aerospace standards and certification constraints

is a strong plus

Strong communication skills and ability to work in multidisciplinary teams

Fluent in English, Dutch is a plus

What We Offer

Opportunity to work on

high-impact aerospace and defense projects

Exposure to

design, stress, and certification activities

A dynamic and international engineering environment

Strong autonomy and responsibility in your assignments

Career development opportunities within the

SII Group

Competitive salary package (fixed + bonus + benefits)

Why Join SII Netherlands?

Joining SII Netherlands means becoming part of a

flexible, expert-driven engineering organization

with strong capabilities in aerospace and high-tech sectors.

You will work on

innovative projects , collaborate with highly skilled engineers, and contribute directly to the success of complex industrial programs

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