Mechanical Systems Engineer

NIL Technology ApS; Horgen; On-site; CHF 90,000 - 120,000; Full time

Job summary

NIL Technology in Switzerland is seeking a Mechanical Systems Engineer to strengthen the Modules team with optomechanical expertise. You will define optomechanical design, build CAD models, and help turn demonstrators into professional, product-like devices for customer meetings.

The role involves tolerance analysis, cross-functional collaboration across optics, electronics and process teams, and close work with external suppliers to deliver manufacturable parts.

Qualifications

• Minimum 3 years as a mechanical or optomechanical development engineer in a high-tech optical environment.
• MSc in Mechanical Engineering, Microengineering, or related field.
• Expert in 3D CAD modeling with production drawings and GD&T.

Responsibilities

• Define the optomechanical design of optical modules, including lens/sensor holders, apertures, alignment features and housings.
• Create 3D CAD models, assemblies and 2D production drawings including GD&T and maintain design data for internal builds, suppliers and customers.
• Perform tolerance stack-up analyses and assess mechanical tolerances, thermal effects, and assembly processes on optical performance.
• Support demonstrators and prototypes from concept to final assembly to look professional and product-like.
• Collaborate with manufacturing and suppliers to ensure on-time and specification-compliant parts.
• Design jigs, fixtures and alignment tools for assembly and optical characterization.

Skills

3+ years optomechanical experience

Education

MSc Mechanical Engineering

Tools

SolidWorks

Creo

Siemens NX

Job description

Giving shape to wafer-level optics — together

Do you enjoy turning optical concepts into precise, robust and good-looking hardware?

As our new Mechanical Systems Engineer, you will strengthen our Modules team with optomechanical expertise. You will build the CAD models of our optical modules, define their optomechanical design, and help turn our demonstrators into professional, product-like devices that convince customers. This is a unique opportunity to grow your expertise in a fast-moving, multidisciplinary environment at the forefront of nano- and micro-optics innovation.

Based in our modern office and cleanroom facilities in Seehallen Horgen, right next to Lake Zürich, you will join an experienced, collaborative team of optics, electronics and process engineers dedicated to building next-generation optical modules and demonstrators.

You will be part of an ambitious company where we win together. Team spirit and mutual success are key components in our everyday work culture.

Tasks and responsibilities

Optomechanical Design

Define the optomechanical design of our optical modules, including lens and sensor holders, apertures, alignment features and housings. Translate optical requirements into mechanical concepts and set tolerances that make our modules robust and manufacturable.

CAD Modeling and Documentation

Create 3D CAD models, assemblies and 2D production drawings including GD&T, and maintain clean design data for internal builds, suppliers and customers.

Tolerance and Performance Analysis

Perform tolerance stack-up analyses and work with the optical design team to assess how mechanical tolerances, thermal effects and assembly processes affect optical performance.

Demonstrators and Product-Like Prototypes

Support the build-up of demonstrators and prototypes from concept to final assembly. Design housings, mounts and covers that make our demonstrators look professional and product-like for customer meetings and trade shows.

Manufacturing and Supplier Collaboration

Select suitable manufacturing processes such as CNC machining, 3D printing and injection molding, and work with external suppliers and module integrators to ensure parts are delivered on time and to specification.

Assembly and Test Fixtures

Design jigs, fixtures and alignment tools for module assembly and optical characterization in our lab and cleanroom.

Skills, experiences and qualifications we are looking for

• Minimum 3 years as a mechanical or optomechanical development engineer in a high-tech, optical or consumer electronics environment
• MSc in Mechanical Engineering, Microengineering, or a related field
• Expert in 3D CAD modeling (e.g. SolidWorks, Creo or Siemens NX), including production drawings and GD&T
• Experience in the optomechanical design of camera, sensor or optical modules, including tolerance analysis; basic understanding of optics is a plus
• Experience with injection molding for consumer electronic components (part design, mold concepts, supplier collaboration) is a plus
• Solid knowledge of manufacturing processes such as injection molding, CNC machining, 3D printing and surface finishing
• An eye for design and finish, with the ability to create prototypes that look and feel like real products
• Pragmatic, hands‑on mindset and the ability to work across optics, electronics and process teams

Questions

You are welcome to reach out to hiring manager: Moritz Schmidlin, Head of Modules, [e-mail]

Interested?

01.11.2026

1. From (optical) requirements to mechanical design

Describe an (opto)mechanical design you were responsible for: What was your role, and how did you handle tolerances and other technical challenges?

2. Product-like prototypes

Share an example of a prototype or demonstrator that you made look and feel like a real product: Which design choices and manufacturing processes did you use?

About NIL Technology

NIL Technology (NILT), founded in 2006, is an optical solutions company designing, developing, and manufacturing optical elements and components using high-precision nanoscale features. NILT creates competitive advantages with flat optics (meta-optics) in optical applications for 3D sensing, consumer electronics, machine vision, autonomous vehicles, telecommunication, and AR. With its background in mastering for nanoimprint, the company produces masters and offers nano-foundry services. NILT is based in Denmark and has offices in Switzerland, Sweden, US, and a manufacturing in Malaysia. Visit us at www.nilt.com. NILT is owned by Radiant Opto‑Electronics Corporation (www.radiant.com.tw).