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Senior Optical Design Engineer
Apply locations Singapore, Singapore time type Full time posted on Posted Yesterday job requisition id
Company Overview
KLA is a global leader in diversified electronics for the semiconductor manufacturing ecosystem. Virtually every electronic device in the world is produced using our technologies. No laptop, smartphone, wearable device, voice-controlled gadget, flexible screen, VR device or smart car would have made it into your hands without us. KLA invents systems and solutions for the manufacturing of wafers and reticles, integrated circuits, packaging, printed circuit boards and flat panel displays. The innovative ideas and devices that are advancing humanity all begin with inspiration, research and development. KLA focuses more than average on innovation and we invest 15% of sales back into R&D. Our expert teams of physicists, engineers, data scientists and problem-solvers work together with the world’s leading technology providers to accelerate the delivery of tomorrow’s electronic devices. Life here is exciting and our teams thrive on tackling really hard problems. There is never a dull moment with us.
Group/Division
With over 40 years of semiconductor process control experience, chipmakers around the globe rely on KLA to ensure that their fabs ramp next-generation devices to volume production quickly and cost-effectively. Enabling the movement towards advanced chip design, KLA's Global Products Group (GPG), which is responsible for creating all of KLA’s metrology and inspection products, is looking for the best and the brightest research scientist, software engineers, application development engineers, and senior product technology process engineers. The Surfscan group includes a team of engineers, technology development, apps engineers and product marketing focused on technology that enables wafer, IC and equipment manufacturers to develop, qualify and monitor their process tools. Defects and process non-uniformities detected on Surfscan equipment allow for early identification of yield excursions. The flagship Surfscan products include the SPx platforms for wafer surface quality and wafer defect inspection tools and systems for inspection of polished wafers, epi wafers and engineered substrates during the wafer fabrication process.
Job Description/Preferred Qualifications
Responsibilities:
Facilitate the optical specifications, lens design, and supplier integration of new optics enabled products for the Optics Development Engineering group.
Effective use of Code V or Zemax to design low residual aberration generating imaging lenses, relays, spatial/polarization beamsplitters and zoom lenses both from nominal design process to final Monte Carlo tolerance analysis and error budgeting.
Construct complex system models using above components having all imaging paths with critical parameters needed to produce accurate and efficient raytracing simulations of Strehl/WFE performance, coherent and incoherent PSF size/shape, focal depth of field and pupil, multiple bounce ghost and non-sequential stray light analysis, and polarization ray tracing to quantify transmission, retardance, diattenuation.
Interferometry experience preferred.
Education or experience should include:
Designing, modeling and analyzing optical systems.
Optical manufacturing processes.
Code V or Zemax Optical software advanced user.
Statistical lens tolerancing.
Ghost and stray light analysis.
Design for manufacturing based on capabilities of Optical metrology.
Specification of precision opto-mechanical assemblies; and
Data analysis using Matlab or other programs. Any suitable combination of education, training, or experience is acceptable.
Minimum Qualifications
Doctorate (Academic) Degree and 0 years related work experience; Master's Level Degree and related work experience of 3 years; Bachelor's Level Degree and related work experience of 5 years.
We offer a competitive, family friendly total rewards package. We design our programs to reflect our commitment to an inclusive environment, while ensuring we provide benefits that meet the diverse needs of our employees.
KLA is proud to be an equal opportunity employer.
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Senior Optical Design Engineer
role at
KLA
5 days ago Be among the first 25 applicants
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Senior Optical Design Engineer
role at
KLA
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Company Overview
KLA is a global leader in diversified electronics for the semiconductor manufacturing ecosystem. Virtually every electronic device in the world is produced using our technologies. No laptop, smartphone, wearable device, voice-controlled gadget, flexible screen, VR device or smart car would have made it into your hands without us. KLA invents systems and solutions for the manufacturing of wafers and reticles, integrated circuits, packaging, printed circuit boards and flat panel displays. The innovative ideas and devices that are advancing humanity all begin with inspiration, research and development. KLA focuses more than average on innovation and we invest 15% of sales back into R&D. Our expert teams of physicists, engineers, data scientists and problem-solvers work together with the world’s leading technology providers to accelerate the delivery of tomorrow’s electronic devices. Life here is exciting and our teams thrive on tackling really hard problems. There is never a dull moment with us.
Company Overview
KLA is a global leader in diversified electronics for the semiconductor manufacturing ecosystem. Virtually every electronic device in the world is produced using our technologies. No laptop, smartphone, wearable device, voice-controlled gadget, flexible screen, VR device or smart car would have made it into your hands without us. KLA invents systems and solutions for the manufacturing of wafers and reticles, integrated circuits, packaging, printed circuit boards and flat panel displays. The innovative ideas and devices that are advancing humanity all begin with inspiration, research and development. KLA focuses more than average on innovation and we invest 15% of sales back into R&D. Our expert teams of physicists, engineers, data scientists and problem-solvers work together with the world’s leading technology providers to accelerate the delivery of tomorrow’s electronic devices. Life here is exciting and our teams thrive on tackling really hard problems. There is never a dull moment with us.
Group/Division
With over 40 years of semiconductor process control experience, chipmakers around the globe rely on KLA to ensure that their fabs ramp next-generation devices to volume production quickly and cost-effectively. Enabling the movement towards advanced chip design, KLA's Global Products Group (GPG), which is responsible for creating all of KLA’s metrology and inspection products, is looking for the best and the brightest research scientist, software engineers, application development engineers, and senior product technology process engineers. The Surfscan group includes a team of engineers, technology development, apps engineers and product marketing focused on technology that enables wafer, IC and equipment manufacturers to develop, qualify and monitor their process tools. Defects and process non-uniformities detected on Surfscan equipment allow for early identification of yield excursions. The flagship Surfscan products include the SPx platforms for wafer surface quality and wafer defect inspection tools and systems for inspection of polished wafers, epi wafers and engineered substrates during the wafer fabrication process.
Job Description/Preferred Qualifications
Responsibilities:
Facilitate the optical specifications, lens design, and supplier integration of new optics enabled products for the Optics Development Engineering group.
Effective use of Code V or Zemax to design low residual aberration generating imaging lenses, relays, spatial/polarization beamsplitters and zoom lenses both from nominal design process to final Monte Carlo tolerance analysis and error budgeting.
Construct complex system models using above components having all imaging paths with critical parameters needed to produce accurate and efficient raytracing simulations of Strehl/WFE performance, coherent and incoherent PSF size/shape, focal depth of field and pupil, multiple bounce ghost and non-sequential stray light analysis, and polarization ray tracing to quantify transmission, retardance, diattenuation.
Interferometry experience preferred.
Education or experience should include:
Designing, modeling and analyzing optical systems
Optical manufacturing processes
Code V or Zemax Optical software advanced user
Statistical lens tolerancing
Ghost and stray light analysis
Design for manufacturing based on capabilities of Optical metrology
Specification of precision opto-mechanical assemblies; and
Data analysis using Matlab or other programs. Any suitable combination of education, training, or experience is acceptable.
Minimum Qualifications
Doctorate (Academic) Degree and 0 years related work experience; Master's Level Degree and related work experience of 3 years; Bachelor's Level Degree and related work experience of 5 years
We offer a competitive, family friendly total rewards package. We design our programs to reflect our commitment to an inclusive environment, while ensuring we provide benefits that meet the diverse needs of our employees.
KLA is proud to be an equal opportunity employer
Be aware of potentially fraudulent job postings or suspicious recruiting activity by persons that are currently posing as KLA employees. KLA never asks for any financial compensation to be considered for an interview, to become an employee, or for equipment. Further, KLA does not work with any recruiters or third parties who charge such fees either directly or on behalf of KLA. Please ensure that you have searched KLA’s Careers website for legitimate job postings. KLA follows a recruiting process that involves multiple interviews in person or on video conferencing with our hiring managers. If you are concerned that a communication, an interview, an offer of employment, or that an employee is not legitimate, please send an email to to confirm the person you are communicating with is an employee. We take your privacy very seriously and confidentially handle your information.
Seniority level
Seniority level Mid-Senior level
Employment type
Employment type Full-time
Job function
Job function Engineering and Information Technology
Industries Semiconductor Manufacturing
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Overview
Direct message the job poster from Ligent
Manager of Opearations at Hisense Broadband, Inc.
Position Overview
We are seeking a highly motivated Optical Transceiver Design Engineer to join our R&D team. The engineer will be responsible for the design, development, and validation of next-generation optical transceiver modules (100G/400G/800G/1.6T). This role requires strong interdisciplinary knowledge in high-speed electrical design, mechanical/thermal design, firmware development, signal/power integrity, and manufacturing process integration.
Responsibilities
Electrical Design
Design high-speed circuits for optical transceivers, including laser drivers, TIAs, CDRs, DSP interfaces, and power management circuits.
Perform schematic design, component selection, and circuit optimization for signal integrity and low jitter.
Collaborate with vendors to qualify and integrate advanced ICs (DSPs, drivers, TIAs, controllers).
Firmware & Control
Develop and validate firmware for module control, monitoring, diagnostics, and standards compliance (CMIS, IEEE, MSA).
Implement control algorithms for laser, TEC, and power management subsystems.
Conduct firmware debugging, system integration, and regression testing.
Simulation (SI/PI/EMI)
Perform Signal Integrity (SI) and Power Integrity (PI) simulations to ensure compliance with IEEE/ODCC/OIF standards.
Analyze high-speed channels, PCB traces, connectors, and package effects.
Evaluate EMI/EMC performance and propose design optimizations.
PCB Design
Define PCB stack-up, routing rules, and layout guidelines for high-speed differential signals (25G/50G/100G per lane).
Collaborate with PCB layout engineers to achieve optimal routing for high-speed and power delivery.
Perform layout reviews and ensure compliance with DFM/DFT standards.
Mechanical / Thermal Design
Support thermal modeling, heat sink design, and system-level cooling strategies.
Ensure compliance with MSA mechanical specifications and customer requirements.
Process Development & Manufacturing
Work with manufacturing teams to define assembly processes (SMT, wire bonding, fiber attach, optical alignment).
Optimize module assembly yield, reliability, and manufacturability.
Support NPI (New Product Introduction) from prototype to mass production.
Test & Validation
Define test plans and validation procedures for optical/electrical/firmware functions.
Conduct compliance testing for IEEE, OIF, MSA, and customer requirements.
Perform root-cause analysis and support reliability qualification (GR-468, Telcordia).
Qualifications
Bachelor’s/Master’s degree in Electrical Engineering, Optical Engineering, Physics, Computer Engineering, or related field.
Strong background in one or more areas:
Firmware development (C/C++, embedded systems, I2C/SPI, CMIS/MSA compliance)
PCB layout for high-speed differential routing
Mechanical/Thermal modeling (SolidWorks, Icepak, FloTHERM)
Hands-on experience with lab equipment: high-speed oscilloscopes, BERT, VNA, TDR, optical power meters, etc.
Knowledge of optical components (lasers, modulators, photodiodes, fiber coupling).
Strong problem-solving skills and ability to work in cross-functional teams.
Experience in volume manufacturing and NPI is a plus.
Preferred Experience
Experience with 400G/800G/1.6T optical module development.
Familiar with industry standards: IEEE 802.3, OIF CEI, CMIS, MSA specifications.
Familiarity with reliability testing and Telcordia standards (GR-468).
Prior experience in tier-1 optical transceiver companies is an advantage.
Seniority level
Mid-Senior level
Employment type
Full-time
Job function
Industries
Telecommunications
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About Celestial AI

As Generative AI continues to advance, the performance drivers for data center infrastructure are shifting from systems-on-chip (SOCs) to systems of chips. In the era of Accelerated Computing, data center bottlenecks are no longer limited to compute performance, but rather the system's interconnect bandwidth, memory bandwidth, and memory capacity. Celestial AI's Photonic Fabric is the next-generation interconnect technology that delivers a tenfold increase in performance and energy efficiency compared to competing solutions.

The Photonic Fabric is available to our customers in multiple technology offerings, including optical interface chiplets, optical interposers, and Optical Multi-chip Interconnect Bridges (OMIB). This allows customers to easily incorporate high bandwidth, low power, and low latency optical interfaces into their AI accelerators and GPUs. The technology is fully compatible with both protocol and physical layers, including standard 2.5D packaging processes. This seamless integration enables XPUs to utilize optical interconnects for both compute-to-compute and compute-to-memory fabrics, achieving bandwidths in the tens of terabits per second with nanosecond latencies.

This innovation empowers hyperscalers to enhance the efficiency and cost-effectiveness of AI processing by optimizing the XPUs required for training and inference, while significantly reducing the TCO2 impact. To bolster customer collaborations, Celestial AI is developing a Photonic Fabric ecosystem consisting of tier-1 partnerships that include custom silicon/ASIC design, system integrators, HBM memory, assembly, and packaging suppliers.

ABOUT THE ROLE

We are seeking an Optical Test Engineer, based in our Singapore office, to operate and maintain wafer-scale probe stations for silicon photonics testing. In this role, you will execute and refine optical and opto-electronic test procedures, ensure reliable data collection across passive and active components, and work closely with the engineering team in the US to support development and production testing. This position is ideal for an engineer who excels in precision measurement, data analysis, and continuous improvement of test systems.

ESSENTIAL DUTIES AND RESPONSIBILITIES

• Own the operation and maintenance of wafer-scale probe stations for Silicon Photonics testing.
• Develop and execute test recipes for various passive and active optical/opto-electronic components for library development and production sort.
• Work with prober vendor to implement new test functionality as needed, including incorporation of new test equipment into prober.
• Create and execute a maintenance and continuous improvement plan for the test stations to improve test capabilities and gauge.
• Help setup data infrastructure to handle data outputs from prober.

QUALIFICATIONS

• Specialized skills
• Good understanding of integrated optics testing requirements and methods.
• Experience with setting up optical measurements, including familiarity with standard test equipment/components (tunable lasers, PWMs, OSAs, fiber arrays). Direct experience with commercial probe stations is a huge plus.
• Experience with high-speed test setups to measure opto-electronic S-parameters
• Ability to collect and analyze complex datasets (i.e. experience with JMP, DataConductor or similar data analysis tools)

• Experience with automated instrument/machine control using Python/Matlab/LabView/C#

• Education requirements

• Minimum BS in engineering or physics. Masters preferred.
• Experience requirements
• Minimum 5 years of relevant experience
• Attributes
• Self-starter
• Thrives in a highly collaborative and dynamic work environment
• Has excellent oral and written communication skills
• Creativity in problem-solving with strong attention to detail

LOCATION: Singapore*

• This role will be based in our Singapore office, offering an exciting opportunity to work in one of Asia's most dynamic business hubs.

We offer great benefits (health, vision, dental and life insurance), collaborative and continuous learning work environment, where you will get a chance to work with smart and dedicated people engaged in developing the next generation architecture for high performance computing.

Celestial AI Inc. is proud to be an equal opportunity workplace and is an affirmative action employer.

ABOUT THE ROLE
We are seeking an Optical Test Engineer, based in our Singapore office, to operate and maintain wafer-scale probe stations for silicon photonics testing. In this role, you will execute and refine optical and opto-electronic test procedures, ensure reliable data collection across passive and active components, and work closely with the engineering team in the US to support development and production testing. This position is ideal for an engineer who excels in precision measurement, data analysis, and continuous improvement of test systems.
ESSENTIAL DUTIES AND RESPONSIBILITIES
Own the operation and maintenance of wafer-scale probe stations for Silicon Photonics testing.
Develop and execute test recipes for various passive and active optical/opto-electronic components for library development and production sort.
Work with prober vendor to implement new test functionality as needed, including incorporation of new test equipment into prober.
Create and execute a maintenance and continuous improvement plan for the test stations to improve test capabilities and gauge.
Help setup data infrastructure to handle data outputs from prober.
QUALIFICATIONS
Specialized skills
Good understanding of integrated optics testing requirements and methods.
Experience with setting up optical measurements, including familiarity with standard test equipment/components (tunable lasers, PWMs, OSAs, fiber arrays). Direct experience with commercial probe stations is a huge plus.
Experience with high-speed test setups to measure opto-electronic S-parameters
Ability to collect and analyze complex datasets (i.e. experience with JMP, DataConductor or similar data analysis tools)
Experience with automated instrument/machine control using Python/Matlab/LabView/C#
Education requirements
Minimum BS in engineering or physics. Masters preferred.
Experience requirements
Minimum 5 years of relevant experience
Attributes
Self-starter
Thrives in a highly collaborative and dynamic work environment
Has excellent oral and written communication skills
Creativity in problem-solving with strong attention to detail
LOCATION
Singapore*
*This role will be based in our Singapore office, offering an exciting opportunity to work in one of Asia’s most dynamic business hubs.
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Role Overview

Responsible for designing, developing, and testing optical circuits, modules, and systems, ensuring product quality, compliance with standards, and successful project delivery. Involves cross-disciplinary knowledge in optics, electronics, mechanics, firmware, and systems.

Responsibilities

• Basic level of design and development of optical circuits, modules, and systems
• Conduct optical testing, verification, and quality assurance
• Create and execute test plans based on requirements
• Perform optical simulations and create lens designs
• Support troubleshooting, root cause analysis, and certifications
• Participate in discussions of DFMEA, SPC, and statistical analysis for quality control with Senior members of the team
• Identify cost-saving opportunities in optical components
• Benchmark optical solutions and define best practices (ie. Competitor Analysis) Analyse and digest reports / data to support in generation of finding reports for purpose of usage to study and further develop solutions suitable for product ideas

Requirements:

• Diploma or higher in Optical Engineering, Engineering Optics, or equivalent
• Minimum 2+ years of R&D experience in optics-related product development (Senior minimally 2-3 years of relevant working experience)
• If industrial experience is not applicable, advanced understanding of optical technical know-how is key .
• Good knowledge of sensor technology and optical testing methodology
• Familiarity with IEC/ISO standards (e.g., IEC 62471, IEC 60825)
• Proficiency in optical simulation tools (e.g., Zemax) and first-order ray tracing
• Strong analytical and problem-solving skills in failure analysis
• Growth mindset and ability to take ownership of tasks

Join to apply for the
Research Fellow (Optical Design)
role at
Nanyang Technological University Singapore
17 hours ago Be among the first 25 applicants
Join to apply for the
Research Fellow (Optical Design)
role at
Nanyang Technological University Singapore
The Continental-NTU Corp Lab is a strategic research collaboration between NTU and Continental, focusing on developing technically advanced solutions in the areas such as sustainable materials engineering, artificial intelligence, advanced communications and cybersecurity capabilities for future urban mobility applications. We aim to develop innovative solutions that can be commercialized into products and services for Continental through close collaboration with its business units.
We are looking for a Research Fellow to support the development of optical systems, with specific emphasis on metasurface-based technologies for various automotive applications, including Head up Display, Near-Eye Display, Virtual Reality and Augmented Reality etc.
Key Responsibilities
Design, develop, and test optical systems for metasurface-based HUDs, Near-Eye Displays, VR, and AR applications
Conduct research and development to advance the state-of-the-art in optical projection systems, including:
Investigating novel optical materials and technologies
Developing and optimizing optical system designs using simulation tools
Characterizing and testing optical system performance
Collaborate with cross-functional teams to integrate optical systems with other technologies, including electronics, software, and mechanical systems
Develop and maintain technical documentation, including design reports, test plans, and technical papers
Participate in project meetings and present research findings to stakeholders
Stay up-to-date with industry trends and emerging technologies in optical projection systems
Prepare high-quality research publications and contribute to report and technological disclosures writing.
Job Requirements
PhD degree in the areas of Optical Engineering and/or Photonics devices and System.
Knowledge and/or experience in using optical simulation tools such as Zemax, CodeV etc.
Good interpersonal skills with the ability to work independently and also in a team environment.
Excellent problem-solving and analytical skills.
Entry level candidates with relevant backgrounds are also welcomed.
We regret that only shortlisted candidates will be notified.
Hiring Institution: NTU
Seniority level
Seniority level Entry level
Employment type
Employment type Full-time
Job function
Job function Engineering and Information Technology
Industries Higher Education
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Job Responsibilities:

Develop Interposer for heterogeneous integration

develop process integration flow for optical modules.

Transparent epoxy underfill development

Glass to silicon bonding process

scale up from prototype to volume assembly

Integrate silicon interposer and organic substrate integration

Job Responsibilities:

Develop Interposer for heterogeneous integration

develop process integration flow for optical modules.

Transparent epoxy underfill development

Glass to silicon bonding process

scale up from prototype to volume assembly

Integrate silicon interposer and organic substrate integration