Key Skills

Job Description

Do you want to contribute to aircraft modifications and certification in a DOA environment? Are you looking to work on high-impact aerospace projects in an international context? We are currently looking for a Certification Engineer to strengthen our aircraft modification projects team. About SII SII is a European digital and engineering services company with 16,000 experts worldwide. In the Netherlands, SII supports leading aerospace and industrial companies in engineering, certification, and innovation activities. We value empowerment and entrepreneurship, offering a stimulating work environment where our consultants can grow and make an impact. SII Netherlands is part of an EASA Approved Design Organization (DOA), enabling us to approve both minor and major aircraft modifications. Our certification engineers form a highly skilled team making these projects possible. Your Role As a Certification Engineer, you will be part of our aircraft modification team, supporting the full lifecycle of design and certification activities. You will ensure that all modifications comply with airworthiness regulations, while contributing to innovative and efficient technical solutions. What you’ll do Analyze and interpret customer requirements Define and review aircraft modifications, including: Metal and composite structures, Cabin interiors and cabin safety aspects and Support to electrical design aspects Conduct feasibility studies and optimize existing systems Participate in design reviews and interface coordination Prepare and review technical and certification documentation, including Change classification, Compliance demonstration and Flammability assessment Support testing activities and evaluate results Ensure compliance with EASA certification requirements Your profile Engineering degree (Aerospace, Mechanical, or equivalent – HBO level or higher) Minimum 2 years of experience in aerospace engineering Experience in certification and/or aircraft modifications Knowledge of cabin safety requirements is a strong plus Good understanding of structures (metal/composite) and/or interiors / systems Strong communication and stakeholder management skills Comfortable working in an international environment Fluent in English (additional languages are a plus) Proactive, flexible, and solution-oriented A good sense of humor What we offer Work on aircraft modification and certification projects Exposure to design, stress, and certification disciplines A collaborative and friendly team environment Open and entrepreneurial culture

Core Responsibilities

Analyze customer requirements and support aircraft modifications throughout design and certification, including structures, cabin interiors, cabin safety, and electrical design aspects. Prepare and review certification documentation, coordinate design reviews, support testing, and ensure compliance with EASA airworthiness requirements.

Requirements

Requires an aerospace, mechanical, or equivalent engineering degree at HBO level or higher and at least two years of aerospace engineering experience. Candidates should have experience in certification or aircraft modifications, a good understanding of structures, interiors, or systems, strong communication skills, and fluent English; cabin safety knowledge is an advantage.

Benefits

• Collaborative Team Environment
• Open and Entrepreneurial Culture