Senior / Opto-Mechanical Engineer

St Engineering; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

ST Engineering in Singapore is seeking a Senior / Opto‑Mechanical Engineer to lead the development of laser and electro‑optical systems—from concept to deployment. You will translate operational needs into robust system designs, define architecture and performance, and drive integration across optical, mechanical, electronic, and software domains.

The role involves prototyping, system validation, field deployment, and close collaboration with multidisciplinary teams to deliver high‑performance

Qualifications

• Minimum 5 years of opto‑mechanical design experience.
• Experience in defense, aerospace, or photonics preferred.
• Proficient with CAD and FEA tools (SolidWorks/Creo; ANSYS/COMSOL).

Responsibilities

• Lead design, development and integration of opto‑mechanical subsystems for laser and electro‑optic systems.
• Perform tolerance, structural and thermal analyses to ensure robustness.
• Oversee fabrication, assembly and alignment for field readiness; manage prototyping and testing.
• Collaborate with system, electronics and optical engineers to meet performance requirements.
• Develop and maintain technical documentation for CM and standards.

Skills

Opto-mechanical design

CAD tools

FEA tools

Tools

SolidWorks

Creo

ANSYS

COMSOL

Job description

Job Title: Senior / Opto-Mechanical Engineer

Job Location Region: North

Job Description:

About ST Engineering

ST Engineering is a global technology, defence, and engineering group with offices across Asia, Europe, the Middle East, and the U.S., serving customers in more than 100 countries. The Group uses technology and innovation to solve real-world problems and improve lives through its diverse portfolio of businesses across the aerospace, smart city, defence, and public security segments. Headquartered in Singapore, ST Engineering ranks among the largest companies listed on the Singapore Exchange.

Our history spans more than 50 years, and our strategy is underpinned by our core values – Integrity, Value Creation, Courage, Commitment and Compassion. These 5 core values guide every aspect of our business and are embedded in our ST Engineering culture – from the people we hire, to working with each other, to our partners and customers.

About our Business – Advanced Networks & Sensors

Our Advanced Networks & Sensors business specializes in platform digitalization, advanced connectivity, and cutting‑edge manufacturing. This diversity of capabilities presents a range of roles through which you can contribute to the development of innovative, secure, and patented products. Join our team and play a crucial role in developing tomorrow’s technology and connectivity solutions and services to sectors spanning defence, public security, government, and the commercial realm. Your work will have a global impact as we empower customers through advanced communications, intelligent sensors, and the deployment of AI-enabled Edge applications for mission‑critical roles.

Together, We Can Make A Significant Impact

We are looking for a highly motivated Senior / Opto-Mechanical Engineer to lead the development of cutting‑edge laser and electro‑optical systems—from concept to deployment.

In this role, you will translate operational needs into robust system designs, define architecture and performance requirements, and drive integration across optical, mechanical, electronic, and software domains. You will play a key role in prototyping, system validation, and field deployment, working closely with multidisciplinary teams to deliver high‑performance solutions.

Be Part of Our Success

• Lead the design, development, and integration of opto‑mechanical subsystems for advanced laser and electro‑optics systems, including optical mounts, enclosures, alignment mechanisms, thermal management, and vibration isolation.
• Perform tolerance, structural, and thermal analyses using simulation tools to ensure mechanical stability and robustness of design.
• Oversee the fabrication, assembly, and precision alignment of opto‑mechanical subsystems, ensuring manufacturability and field readiness.
• Perform prototyping, integration, environmental testing, ruggedisation, and optimisation for mobile or fixed deployment platforms.
• Collaborate with system, electronics, and optical engineers to ensure mechanical designs meet performance and operational requirements.
• Develop and maintain comprehensive and accurate technical documentation, including design records, test reports, and validation data, ensuring compliance with configuration management and industry standards.

Qualities We Value

• Knowledge in Mechanical Engineering or equivalent.
• Minimum 5 years of experience in opto‑mechanical design for precision systems, preferably in defense, aerospace, or photonics industries.
• Strong background in CAD tools (e.g., SolidWorks, Creo) and FEA tools (ANSYS, COMSOL).
• Familiar with optical alignment methods, thermal and vibration management for sensitive optical assemblies.
• Hands‑on experience in optical alignment and integration is strongly preferred.
• Deep understanding of optical‑mechanical interface requirements.
• Structured, detail‑oriented mindset for engineering documentation and system integration.
• Strong collaboration skills to work across optical, electronics, and systems teams.
• Proactive in problem‑solving and field support during testing or deployment.
• Ability to work collaboratively with multidisciplinary teams toward shared objectives.
• Strong analytical and troubleshooting capabilities in both lab and field settings.
• Team‑Oriented Mindset: Ability to work collaboratively with multidisciplinary teams toward shared objectives.
• Effective Communication: Clear and concise communication across engineering and management levels.
• Adaptability: Comfortable with agile development, prototyping, and evolving requirements in R&D environments.
• Problem‑Solving: Strong analytical and troubleshooting capabilities in both lab and field settings.
• Accountability: Ownership of tasks from concept to integration, with a high standard for quality and safety.
• Singaporean only

Our Commitment That Goes Beyond the Norm

• An environment where you will be working on cutting‑edge technologies and architectures.
• Safe space where diverse perspectives are valued, and everyone’s unique contributions are celebrated.
• Meaningful work and projects that make a difference in people’s lives.
• A fun, passionate and collaborative workplace.
• Competitive remuneration and comprehensive benefits.

Working Location: Ang Mo Kio