Careers

JOB DESCRIPTION:

As an application engineer at CIG, you will have the opportunity to work on cutting-edge optical transceiver technology for high-growth AI data center applications. You will support hyperscale data center and telecommunication customers. You will collaborate with experienced engineers and contribute to critical projects involving advanced optical communication products.

RESPONSIBILITIES:

• Provide technical support to customers on cutting-edge optical transceiver products

• Engage with customers to understand customer requirement and provide solutions

• Work closely with product development teams, such as hardware design engineers, firmware engineers to solve customer issues

• Provide technical assistant to sales team and operation team on pre-sale and post-sales activities

QUALIFICATIONS:

• Bachelor’s degree in Electrical Engineering, Computer Science, or Physics

• At least 3 years of experience in application engineering, software development, testing, or hardware design in the optical communication or networking industry

• Knowledge of optical transceivers, networking, telecommunications, and data center infrastructure

• Familiar with automated testing and programming

• Experience in the following areas is a plus: fiber optics, network switches, routers, DSP, and Ethernet

• Excellent problem-solving skills and hands-on experience

• Strong communication and teamwork skills

• Willingness to travel to support customers

PREFERRED SKILLS:

• Experience with programming languages (e.g., Python, C) for software test and automation

• Experience with test equipment (e.g., Keysight oscilloscopes, network analyzer)

JOB TYPE:

Full-Time

LOCATION:

On-Site, Santa Clara, CA

JOB SUMMARY:

We are seeking a skilled Electrical Engineer to design and develop high-speed optical transceiver hardware for next-generation data communication systems. The ideal candidate will have strong experience in high-speed digital and mixed-signal design, signal integrity, and optical module development (e.g., SFP, QSFP, OSFP). This role involves full product lifecycle ownership from architecture through validation and production.

KEY RESPONSIBILITIES:

• Design and develop high-speed optical transceiver modules (e.g., SFP+, QSFP28, QSFP-DD, OSFP)

• Perform schematic capture and oversee multilayer PCB layout for high-speed designs

• Conduct signal integrity (SI) and power integrity (PI) analysis for high-speed channels (NRZ/PAM4)

• Simulate high-speed links using industry tools and validate performance in lab environments

• Debug and troubleshoot hardware issues during bring-up and validation phases

• Perform compliance testing according to industry standards (e.g., IEEE 802.3, MSA specifications)

• Collaborate with cross-functional teams including firmware, mechanical, optical, and manufacturing engineers

• Support product qualification, manufacturing, and yield improvement efforts

• Generate detailed design documentation, test plans, and reports

REQUIRED QUALIFICATIONS:

• Bachelor’s or Master’s degree in Electrical Engineering or related field

• Strong understanding of high-speed interfaces (10G/25G/50G/100G/400G+)

• Experience with signal integrity concepts: impedance control, jitter, crosstalk, insertion/return loss

• Hands-on experience with lab equipment (oscilloscope, BERT, VNA, TDR)

• Experience with PCB design and schematic tools (e.g., Altium, Cadence Allegro)

• Familiarity with communication protocols such as Ethernet, I2C, SPI, MDIO

PREFERRED QUALIFICATIONS:

• Experience with PAM4 signaling and advanced modulation schemes

• Familiarity with optical components (lasers, photodiodes, TIAs, DSPs)

• Experience with simulation tools (e.g., Keysight ADS, Ansys HFSS)

• Knowledge of thermal design and high-density module packaging

• Scripting or programming skills (Python, MATLAB) for automation and analysis

• Experience with compliance and interoperability testing

KEY SKILLS:

• High-speed digital and mixed-signal design

• Signal and power integrity analysis

• Hardware debugging and problem-solving

• Cross-functional collaboration

• Attention to detail and documentation

APPLY: hrus@cigtech.com

JOB DESCRIPTION:

We are seeking an Optical Engineer to support the design, development, and optimization of optical transceiver products for high-speed optical communication systems. The candidate will contribute to optical system design, fiber coupling optimization, lens development, optical characterization, and performance validation for next-generation optical communication technologies.

The ideal candidate has strong expertise in optical design tools, optical modeling, and laboratory characterization techniques.

RESPONSIBILITIES:

• Design and optimize optical systems for optical transceiver applications

• Develop and optimize fiber coupling solutions for efficient optical power transfer

• Design, analyze, and optimize optical lenses and beam shaping systems

• Perform optical modeling and simulation using Zemax

• Conduct optical tolerance analysis and performance evaluation

• Characterize and validate optical components and optical assemblies

• Perform laboratory optical measurements including:

• Optical power measurement

• Insertion loss

• Return loss

• Coupling efficiency

• Beam quality characterization

• Support optical alignment, packaging, and assembly development

• Troubleshoot optical system performance issues and implement improvements

• Develop technical reports, specifications, and validation procedures

• Collaborate with cross-functional teams to support product development and manufacturing

REQUIRED QUALIFICATIONS:

• Bachelor’s, Master’s, or Ph.D. in: Optical Engineering, Photonics, Physics, Applied

• Physics, or Related technical field

• Experience with optical system design and analysis

• Proficiency in Zemax optical design software

• Knowledge of fiber optics and fiber coupling techniques

• Experience with lens design and optical component development

• Understanding of optical alignment and tolerance analysis

• Experience using optical laboratory equipment and characterization methods

• Strong analytical and problem-solving skills

• Ability to work effectively in collaborative engineering environments

PREFERRED QUALIFICATIONS:

• Experience developing optical transceiver products

• Familiarity with lasers, photodetectors, collimators, and passive optical components

• Experience with optical packaging and precision alignment

• Programming or data analysis experience (Python or MATLAB preferred)

• Experience with optical simulation and modeling workflows

JOB TYPE:

Full-Time

LOCATION:

On-Site, Santa Clara, CA

SALARY RANGE:

$130k - $260