Mechanical Design Engineer

Austin is home to Optivers’ hardware research, development and manufacturing department. We build some of the world’s most competitive trading hardware using a wide variety of technologies, from fiber optics to custom silicon, from software to antennas - and everything in between.

We’re growing fast and are looking to expand our team with an experienced hardware engineer who deeply understands the complexities of designing and realizing high speed, high density systems and boards. Our systems push the limits of what’s possible, so we’re looking for creative thinkers who can oversee the big picture and who are not afraid to step out of their comfort zone and explore novel approaches.

At Optiver we pride ourselves on being real engineers, not just coders. Our engineers work closely with traders to identify the business problems we face and determine how they should be solved. We apply a disciplined and scientific approach. We engineer simple, well-architected solutions that meet the dynamic needs of our traders. Our passion is to solve problems which really matter to the business, and we take pride in the quality of our solutions.

• Design and develop mechanical systems for high-performance computing platforms and custom trading infrastructure.
• Create detailed CAD models and production drawings for complex assemblies, enclosures, fixtures, and mechanical subsystems.
• Perform engineering analysis including thermal modeling, structural analysis, and system-level design trade studies.
• Prototype, test, and iterate hardware designs through hands‑on validation and integration work.
• Translate engineering concepts into manufacturable designs while balancing performance, reliability, and serviceability.
• Work closely with contract manufacturers and external vendors to support fabrication, assembly, and production builds.
• Develop tooling, fixtures, and test setups to improve hardware assembly, testing, and validation workflows.
• Support prototype builds and troubleshooting during hardware bring‑up and deployment.
• Collaborate cross‑functionally with electrical engineers, firmware engineers, and infrastructure teams to integrate mechanical systems into complete hardware platforms.
• Develop and maintain documentation including drawings, assembly procedures, test methods, and design specifications.
• Provide design feedback to improve manufacturability, scalability, and operational robustness of deployed systems.

• Direct hands‑on involvement in building unique, high‑performance hardware systems which deliver meaningful impact to our business
• A collaborative team environment where your contributions are visible and valued
• Diverse, non‑repetitive work – nearly every system is bespoke
• Work alongside best‑in‑class professionals from over 40 different countries
• Highly competitive compensation package including performance‑based bonus structure
• 401(k) match up to 50%
• Comprehensive health, mental, dental, vision, disability, and life coverage
• Extensive office perks, including breakfast, lunch and snacks, regular social events, clubs, sporting leagues and more

• Bachelor’s degree in Mechanical Engineering or a related engineering field.
• 3+ years of industry experience designing mechanical systems using CAD tools such as Solid Works, Fusion 360, or similar.
• Experience with electronics cooling and thermal device design
• Experience taking mechanical designs from concept through prototype and production.
• Hands‑on fabrication or prototyping experience including machining, 3D printing, or fixture design.
• Solid understanding of manufacturing processes and design for manufacturability (DFM).
• Experience performing engineering analysis such as structural, thermal, or CFD simulation.
• Ability to diagnose mechanical issues during prototype builds and develop practical solutions.
• Strong communication and documentation skills, including the ability to produce clear engineering drawings and technical documentation.
• Legal authorization to work in the United States is required. We will not sponsor individuals for employment authorization for this role.

• Experience designing hardware for…