High Speed Mixed Signal Circuit Design Engineer
Posted 24 Aug 2026
Advertised as “Sr High Speed Mixed Signal Circuit Design Eng”
BranchFactor Summary
The original posting with the fluff stripped out
- Expected experience
- 3+ yrs
- Management level
- Individual contributor
- Employment
- On-Site
No salary listed for this role.
In an increasingly connected world, the pandemic has highlighted just how essential telecom networks are to keeping society running. The Network Infrastructure group is at the heart of a revolution to connectivity, pushing the boundaries to deliver more and faster network capacity to people worldwide through our ambition, innovation, and technical expertise
Join Optical Networks division, where innovation meets scale in the AI-driven data center era. With the recent acquisition of Infinera, we’ve united two industry leaders to create an optical networking powerhouse—combining cutting-edge technology with proven leadership to redefine the future of connectivity.
The successful candidate shall possess the capability to design and analyze high-speed, high-performance analog/mixed-signal circuits, including data converters, PLLs, and SERDES, in advanced CMOS FinFET technologies. She or he shall bring the design to production. Engaging in high-speed analog circuit design gives you the chance to create the technical differentiation that will allow Infinera to hold market leadership. By building cutting-edge circuitry, we will together revolutionize the era of efficient high-speed transmission.
Responsibilities
- Design, implement, and simulate the functionality and performance of various high speed analog circuits, including the ADCs and DACs;
- Create the layout floor plans to optimize the overall performance; Supervise the layout activities and give concise guidelines to layout engineers, need to be hands on in drawing layout if necessary;
- Exploring the trade-offs of the different topologies and propose the best solution to achieve or exceed the requirements in terms of power/area/linearity/bandwidth, etc.
- Develop the analog testing plans and work with the PE/TE teams to characterize the functionality and performance of the products to ensure the quality;
- Need to support and comply with the team’s design methodologies and release flows.
Qualifications
Mandatory Knowledge/Skills/Abilities:
- Must be extremely familiar with essential CAD tools, such as Cadence Virtuoso, Spectre, Incisive, Calibre, EMX, and Totem EM/IR, etc.
- Must have a proven tracking record of designing complex analog / mixed signal IPs or chips in deep submicron CMOS technologies.
- Must have experiences in bringing high performance analog IPs including but not limited to high-speed ADC, high-speed DAC, and high-frequency low-jitter PLL to production.
- Must have a decent understanding in CMOS analog / mixed signal design methodologies and circuit analysis;