Validation Engineer, Senior​/Principal

Headquartered in Lowell, Massachusetts, MACOM is certified to the ISO
9001 international quality standard and ISO
14001 environmental management standard. MACOM has multiple design centers, Si, GaAs and InP fabrication, manufacturing, assembly and test, and operational facilities throughout North America, Europe, Asia and Australia. In addition, MACOM offers foundry services that represents a key core competency within our business. The foundry provides access to, and control of our broad range of proprietary technologies in an asset light, cost effective structure.

MACOM sells and distributes products globally via a sales channel comprised of a direct field sales force, authorized sales representatives and leading industry distributors. Our sales team is trained across all of our products to give our customers insights into our entire portfolio.

Our global organization of skilled engineers is driven every day to solve the world's most demanding wireless and wireline application challenges. We're proud of our more than sixty years' of hands-on experience designing and building analog semiconductor technology across the RF to Light spectrum.

Job Title:

Systems Design Engineer - Senior/Principal

Role:
Validation engineering

We are looking for a talented experienced Validation Engineer to join our validation engineering team within R&D Engineering at Newport Beach location.

Our product lines include high speed (GHz) ICs for optical media access and signal transport. These products are tested by bench-top lab equipment in block, chip and system level before moving to production. This role is to validate/verify the part based on the data sheet/standards specifications and find issues and bugs to modify the future designs.

Job Description:

* Validation of high‑speed optical and electrical interfaces (optical lanes, Ser Des, PCIe, Ethernet). Experienced with:

* NRZ/PAMx BER testing and eye diagram analysis

* Link margining and stress testing

* Standard compliance point testing

* De-embedding SI effects of high-speed interconnects

* Experience validating optical electrical devices used for data center optical modules and high‑speed interfaces such as TIAs, Drivers and Equalizers

* Familiarity with relevant standards is highly regarded

* Validation and design verification of TIA performance, including:

* Bandwidth, gain, noise, linearity, and stability

* Sensitivity and overload behavior

* Jitter and signal‑to‑noise impacts on optical data paths

* Experience correlating test results to design simulation results

* Strong understanding of end‑to‑end system architecture, spanning optical front ends, high‑speed electrical interfaces, firmware, drivers, and operating systems

* Ownership of validation activities across DVT, PVT and debug activities

* Defining the Hardware requirements and be able to run debugging of hardware-firmware-DUT

* Development and ownership of automated validation frameworks for validation plan of record

* Strong scripting skills in C#, MATLAB, Python

* Automation of test execution, data capture, result analysis, and reporting

* Strong root‑cause analysis skills spanning analog, digital, software, and system domains

* Proficient use of lab equipment including:

* High‑bandwidth oscilloscopes

* BER testers and optical test equipment

* Vector Network Analyzer

Job

Qualifications/Requirements:

* BS and 5 years' experience, or MS and 3 years' experience and education in areas related to the disciplines listed above.

* Ability to reproduce, isolate, and drive closure of complex cross‑functional issues

* Experience validating devices against specification and compliance requirements

* Support for qualification, manufacturing handoff, and volume deployment readiness

* Ownership of validation strategies, coverage plans, and risk assessment

* Clear communication through bug tracking, dashboards, and technical reports

* Mentorship of junior engineers and leadership in technical decision‑making

* Ability and willingness to learn and master new disciplines and knowledge, and to work outside fields of current expertise.

* Excellent communications skills and the ability to thoroughly document all work performed to a degree sufficient to…