TeraSignal

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Our Team

At TeraSignal, innovation starts with people. We bring together engineers, thinkers, and creators from across the industry to reimagine the future of data movement. As pioneers in intelligent interconnect technology, we’re building the foundation for next-generation AI, cloud, and networking infrastructure.

Here, you won’t just work on cutting-edge technology, you’ll help define it. We offer a collaborative, fast-moving environment that values intellectual curiosity, shared growth, and making a real impact.

Whether you’re solving analog challenges or pushing the limits of photonics, you’ll be part of a team that believes breakthroughs happen when talented minds connect.

If you’re ready to build the future of high-speed connectivity, we’d love to meet you.

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Collaboration at the Core

We believe that collaboration is the spark that drives big ideas. By blending deep domain expertise with cross-functional teamwork, we learn from each other every day, and build better solutions because of it. Our culture thrives on shared discovery, trust, and the belief that together, we go farther.

 

Open Positions

Company Description

TeraSignal is leading the way in developing cutting-edge CMOS electronics to revolutionize AI and computational interconnects. With a focus on innovative signal conditioning technology for high-speed interconnects, TeraSignal addresses critical challenges in high-speed data transmission, delivering lower power consumption, reduced latency, and enhanced reliability. These solutions are designed to support advanced AI deployments in data centers. Discover more about TeraSignal’s advancements in intelligent silicon solutions for AI interconnects at terasignal.com.

Role Description

We are seeking a full-time Senior Application Engineer to join our team on-site in Irvine, CA. In this role, you will be responsible for designing, developing, and optimizing hardware and firmware for our innovative CMOS-based solutions. Daily tasks include debugging hardware, collaborating with hardware engineers, implementing reference designs, writing application notes and supporting customers. You will also contribute to improving performance and functionality to support high-speed data transmission over copper and optical interconnects.

Qualifications

  • Bachelor’s or higher degree in Electrical Engineering or Computer Engineering
  • Experience with high-speed (>25 GHz) analog physical layer ICs
  • Experience with board design for >25GHz applications, including debugging and troubleshooting
  • Experience with DCA, BERT, VNA
  • Experience with with ASICs with integrated PAM4 SerDes
  • Experience with publishing application notes
  • Experience with supporting customers

Salary Range: $120K-$200k , with Employees stock options

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Company Description

TeraSignal is leading the way in developing cutting-edge CMOS electronics to revolutionize AI and computational interconnects. With a focus on innovative signal conditioning technology for high-speed interconnects, TeraSignal addresses critical challenges in high-speed data transmission, delivering lower power consumption, reduced latency, and enhanced reliability. These solutions are designed to support advanced AI deployments in data centers. Discover more about TeraSignal’s advancements in intelligent silicon solutions for AI interconnects at terasignal.com.

Role Description

We are seeking a full-time Silicon Validation Engineer to join our team on-site in Irvine, CA. In this role, you will be responsible for characterizing next-generation high-speed interconnect ICs used in AI compute platforms and datacenters. Daily tasks include developing test methodologies, debugging evaluation hardware, performing signal integrity validation, and supporting customers integrating our devices into their systems. You will also contribute to improving product performance, ensuring customer success, and strengthening the overall technical credibility of the company.

Qualifications

  • Bachelor’s or higher degree in Electrical Engineering or a related field
  • Experience performing high‑speed electrical measurements using VNAs, oscilloscopes, BERTs, and other RF/SI instrumentation
  • Proficiency in device bring‑up, functional testing, and performance characterization across PVT conditions
  • Familiarity with developing automated test scripts and measurement flows using scripting languages such as Python or MATLAB
  • Ability to debug evaluation boards, reference designs, and signal integrity issues at the board and system level
  • Knowledge of S‑parameter analysis, eye diagrams, jitter, insertion/return loss, and other high‑speed metrics
  • Experience collaborating with design, packaging, qualification, and SI teams to correlate lab results with simulations and models
  • Knowledge of PCB layout, signal integrity best practices, power integrity considerations, and system-level design
  • Experience reproducing customer issues in the lab and driving root-cause analysis and resolution
  • Ability to create technical documentation such as application notes, reference designs, and test guides
  • Experience working cross-functionally with IC design, product, packaging, and firmware teams to define test requirements and interpret results
  • Strong communication skills, including the ability to explain complex technical concepts to customers
  • Experience participating in design reviews, test plan creation, and product qualification efforts
  • Familiarity with high‑speed interconnect standards such as PCIe, Ethernet, or SerDes is a plus
  • Experience working in a fast-moving startup environment is a plus
  • Comfort interacting directly with customers, including field support is a plus

Compensation

Salary Range: $60K–$160K, with employee stock options

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Company Description

TeraSignal is leading the way in developing cutting-edge CMOS electronics to revolutionize AI and computational interconnects. With a focus on innovative signal conditioning technology for high-speed interconnects, TeraSignal addresses critical challenges in high-speed data transmission, delivering lower power consumption, reduced latency, and enhanced reliability. These solutions are designed to support advanced AI deployments in data centers. Discover more about TeraSignal’s advancements in intelligent silicon solutions for AI interconnects at terasignal.com.

Role Description

This is a high-impact, hands-on engineering role with end-to-end ownership of the signal integrity (SI) lifecycle for next-generation high-speed hardware—from initial architecture and simulation through lab validation and production. You will serve as a subject matter expert bridging silicon, package, and PCB design, ensuring robust performance for the world’s most demanding data center, networking, and AI/ML compute environments.

Responsibilities

  • Define and own SI/PI design guidelines for next-generation hardware platforms, with a focus on high-density I/O on PCBs, advanced packages, connectors, and OSFP test modules.
  • Execute complex 2D/3D electromagnetic simulations to characterize reflections, bandwidth, and crosstalk; cascade component models (Touchstone/S-parameter) into complete system-level models.
  • Design (schematic, layout) and oversee multilayer PCB assemblies for high-speed optical hardware, spanning power delivery, signal routing, and connector/interface selection.
  • Lead lab verification and debug using high-bandwidth oscilloscopes, VNAs, and BERTs; develop custom test fixtures and probing solutions to resolve complex SI issues.
  • Collaborate with external contractors and vendors to optimize cost-vs-performance trade-offs while driving layout sign-off and tape-out success.
  • Serve as the primary technical liaison for key customers and silicon partners, aligning product roadmaps with emerging technology trends and customer requirements.

Qualifications

  • M.S. in Electrical Engineering with a focus on Electromagnetic Theory (Ph.D. a plus).
  • 3+ years of hands-on experience in SI design, simulation, and hardware evaluation.
  • Expert proficiency in industry-standard simulation tools, including ANSYS HFSS, SIwave, Altium, and/or Allegro.
  • Deep expertise in high-speed signal integrity, impedance control, and interface transitions.
  • Strong background in IC package and substrate design.
  • Demonstrated ability to operate lab instrumentation and independently debug complex signal integrity problems at the board and system level.

Salary Range: $100K–$200K, with employee stock options

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Location: Irvine, California
Company: TeraSignal Corp.
Position: Full-time

Position Overview

TeraSignal is developing advanced high-speed analog ICs for next-generation AI and data-center interconnects. We are seeking an Optical Test Engineer to characterize and validate our high-speed linear TIAs, optical drivers, and Analog Wave Processor (AWP) technology with real optical components and complete optical links.

The engineer will build and operate high-speed optical test setups integrating TeraSignal ICs with photodiodes, silicon photonics, Mach-Zehnder modulators (MZMs), VCSELs, optical fibers, and high-speed SerDes/DSP test equipment. The role spans device characterization through complete 100G/200G/400G-per-lane optical-link evaluation.

This is a hands-on laboratory position requiring strong understanding of both high-speed electrical measurements and optical communications.

Key Responsibilities

  1. Develop optical test platforms for TeraSignal TIA and driver ICs at 100G, 200G and future 400G per lane.
  2. Characterize TIAs with high-speed photodiodes and optical sources, including gain/transimpedance, bandwidth, input-referred noise, sensitivity, linearity, overload, group delay, RSSI and BER.
  3. Characterize linear MZM drivers with silicon-photonic and other electro-optic modulators, including output swing, bandwidth, linearity, jitter, modulation performance and optical eye quality.
  4. Evaluate TeraSignal ICs with MZMs, photodiodes, VCSELs and emerging optical devices.
  5. Build complete PAM4 optical links from electrical SerDes → driver → modulator → fiber → photodiode → TIA → receiver/SerDes.
  6. Perform 100G/200G PAM4 measurements including eye diagrams, BER, TDECQ, OMA, extinction ratio, RIN-related performance and receiver sensitivity.
  7. Evaluate AWP equalization and waveform correction in real optical channels, including precursor/postcursor ISI, bandwidth limitations and reflections.
  8. Characterize amplitude response, phase response and group delay of optical/electrical signal paths.
  9. Develop automated characterization using Python and instrument-control interfaces.
  10. Perform PVT characterization across temperature, supply voltage and process/device variation.
  11. Work with IC design engineers to correlate silicon measurements with simulation and identify performance limitations.
  12. Work with photonics partners and customers to optimize TeraSignal TIAs and drivers for their photodiodes, modulators and optical engines.
  13. Develop validation plans, characterization reports, application data and customer-facing performance results.
  14. Support evaluation boards, optical reference designs, demonstrations and customer bring-up.
  15. Contribute to production-test methodology and specification limits based on characterization data.

Laboratory Equipment

The ideal candidate will have hands-on experience with several of the following:

High-speed oscilloscopes and sampling scopes; BERTs and PAM4 pattern generators; optical modulation analyzers; VNAs; optical power meters; optical spectrum analyzers; tunable lasers; optical attenuators; polarization controllers; high-speed photodiodes; MZMs; VCSELs; optical probes/fiber coupling; RF probes and probe stations; bias tees; high-speed cables and fixtures; and temperature chambers.

Experience with equipment from Keysight, Anritsu, Tektronix, Rohde & Schwarz, Coherent or equivalent vendors is highly desirable.

Required Qualifications

  1. B.S. or M.S. in Electrical Engineering, Photonics, Applied Physics or a related discipline.
  2. Approximately 3+ years of hands-on high-speed optical or electro-optical test experience.
  3. Strong understanding of high-speed optical communications and PAM4 signaling.
  4. Experience characterizing TIAs, optical drivers, photodiodes, modulators or optical transceivers.
  5. Experience with high-speed laboratory instrumentation and measurement techniques.
  6. Understanding of S-parameters, bandwidth, noise, linearity, jitter, eye diagrams, BER and signal integrity.
  7. Ability to design, debug and automate complex laboratory test setups.
  8. Python or similar programming experience for instrument control and data analysis.
  9. Strong troubleshooting and analytical skills.

Preferred Qualifications

Experience with 100G/200G-per-lane PAM4, LPO/NPO/CPO optical architectures, silicon photonics, MZM biasing, VCSEL links, linear optical receivers, IEEE 802.3 optical specifications, CMIS, optical-module development, or semiconductor IC characterization would be particularly valuable.

Experience working directly with IC designers is also desirable because this position should do more than run compliance tests—the engineer should be able to determine why silicon or an optical link behaves the way it does and work with the design team to improve it.

What Success Looks Like

The engineer will establish a repeatable optical characterization environment in TeraSignal’s lab that allows us to take a new TIA or driver from first silicon to a complete 200G/lane optical demonstration, quantitatively identify the limitations of the IC, photonic device and channel, and demonstrate how AWP improves real-world optical-link performance.

Equal Opportunity

TeraSignal is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees and interns, and we do not discriminate on the basis of race, color, religion, sex, national origin, age, disability, veteran status, or any other protected characteristic.

Work Authorization

Applicants must be legally authorized to work in the United States without the need for employer-sponsored work authorization now or at any point in the future. TeraSignal does not sponsor immigration petitions or visa applications of any kind — including, without limitation, H-1B, TN, E-3, or other employment-based visa classifications. This applies regardless of whether authorization is sought at the outset of employment or at a later date, including in connection with a change in status or an extension of stay.

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