We are looking for a Technical design engineer / Technical draughtsman to convert customer projects into detailed, manufacturable engineering packages.
We develop cutting-edge fiber optic sensing solutions that help protect critical infrastructure and enable smarter monitoring in industries like energy and underwater security.
You will work closely with Project managers, R&D, Supply Chain, Production, Quality, and suppliers. Your role is to define the practical design details needed to build and deliver customer projects, including mechanical drawings, junction box layouts, fibre optic routing, connector details, splice plans, BOMs, and supplier documentation.
This is a hands-on engineering role for someone with a strong mechanical background who enjoys turning conceptual designs into real, buildable designs. Experience with underwater, offshore, marine, subsea, fibre optic, or harsh-environment systems is a strong advantage.
Key Responsibilities:Convert projects from conceptual or basic design into detailed design:
Translate our proposals to customers into detailed technical designs. Customize-to-order our product portfolio to fulfill our customers needs.
Create manufacturable 3D models, 2D drawings, assemblies, and technical specifications.
Define practical design details such as mounting, interfaces, sealing, cable entry, fibre routing, connector placement, and assembly sequence.
Ensure the design can be built, inspected, tested, and delivered.
Detailed design of hardware:
Design and detail hardware such as:
Fibre optic connection layouts
Cable and fibre routing
Splice plans and splice tray layouts
Junction boxes and connector interfaces
Sensor mounting concepts
Brackets, housings, covers, plates, fixtures, and mechanical interfaces
Assembly and installation details
Create production-ready documentation:
3D models and 2D manufacturing drawings
Assembly drawings
Bill of Materials
Supplier drawings
Technical specifications
Fibre connection details and splice diagrams
Inspection and test requirements
Support Operations and suppliers:
Support procurement with technical drawings and specifications for RFQs.
Clarify technical details with suppliers.
Support production during assembly and testing.
Review supplier feedback and improve designs where needed.
Help standardise designs to reduce cost, risk, and lead time.
Join one of Europe’s most promising deep-tech scale-ups
Competitive salary and benefits package
Enjoy regular team activities and company events
Fresh team lunches provided 3 times/ week
Bachelor’s in Mechanical Engineering, Marine Engineering, Offshore Engineering, Mechatronics, Product Design, or similar with 7-12 years of experience
Strong mechanical design and CAD experience.
Experience creating detailed drawings and BOMs.
Good understanding of manufacturing, assembly, tolerances, materials, and technical documentation.
Ability to work with project teams, production, suppliers, and quality.
Preferred Experience
Experience with underwater, subsea, offshore, marine, dredging, or harsh-environment equipment.
Experience with junction boxes, enclosures, cable routing, connectors, sealing, strain relief, or fibre optic systems.
Experience with fibre optic assemblies, splicing, routing, sensors, or instrumentation is a strong plus.
Security & Compliance:
You'll be working with clients in the defense and security sectors, obtaining a Certificate of No Objection issued by the AIVD (Dutch General Intelligence and Security Service) is mandatory. This means you will need to undergo a security screening. For more information, please refer to details on security screening.
Skills Required
- Bachelor’s degree in Mechanical Engineering, Marine Engineering, Offshore Engineering, Mechatronics, Product Design, or a similar field
- 7–12 years of relevant professional experience
- Strong mechanical design and CAD experience
- Experience creating detailed engineering drawings and bills of materials
- Understanding of manufacturing, assembly, tolerances, materials, and technical documentation
- Ability to collaborate with project teams, production, suppliers, and quality teams
- Experience with underwater, subsea, offshore, marine, dredging, or harsh-environment equipment
- Experience with junction boxes, enclosures, cable routing, connectors, sealing, strain relief, or fiber optic systems
- Experience with fiber optic assemblies, splicing, routing, sensors, or instrumentation
- Ability to obtain a Certificate of No Objection through mandatory AIVD security screening
What We Do
Optics11 is an Amsterdam-based high-tech company that develops advanced fiber-optic sensing systems for harsh environments. Its ultra-sensitive, reliable, low-power solutions help operators detect early signs of malfunction and protect critical structures and infrastructure. The company supplies products worldwide for structural and condition monitoring, energy, rail, research and development, defense, and underwater-security applications, supporting data-driven decisions across global markets and challenging operational environments.







