STEM OPT Test Engineer Jobs
Test Engineer roles in software quality, hardware validation, and embedded systems are strong matches for STEM OPT authorization. Your STEM degree makes you eligible for the 24-month OPT extension, giving you up to 36 months to build U.S. experience, provided your employer is enrolled in E-Verify.
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Get Access To All JobsLocation:
Nashua, NH
Department:
Engineering
Posted:
5/18/2026
Location Name:
Nashua
Wage:
Depends on Experience
INTRODUCTION
Amphenol Communications Solutions (ACS), a division of Amphenol Corporation, is a world leader in interconnect solutions for Communications, Mobile, RF, Optics, and Commercial electronics markets. Amphenol Corporation is one of the world’s largest designers and manufacturers of electrical, electronic and fiber optic connectors and interconnect systems, antennas, sensors and sensor-based products and coaxial and high-speed specialty cable. ACS has an expansive global presence in research and development, manufacturing, and sales. We design and manufacture a wide range of innovative connectors as well as cable assemblies for diverse applications including server, storage, data center, mobile, RF, networking, industrial, business equipment, and automotive.
Position Summary
Position: Test Engineer - Signal Integrity
Amphenol High Speed Products Group is the market leader for high speed, high bandwidth electrical connectors for the Telecom/Datacom market (Mobile Networks, Storage, Servers, Routers, Switches, etc.). Our products help to enable the electronics revolution and remain a key enabler for all the major Tier 1 OEMs globally. We have design, sales, and manufacturing locations globally and are currently seeking a Signal Integrity Engineer to join our High Speed IO Cables Business Unit based in Nashua, NH.
Responsibilities:
- Prepare and/or review test plans, test procedures, and test reports for digital, power, and high-speed signaling electronics
- Conduct measurements to characterize SI performance of active and passive copper cable products including S-parameters, impedance, eye patterns, and jitter
- Conduct evaluations of measurement data to ensure that program test requirements are met such as in IEEE, PCI-SIG, and customer specifications
- Perform test data de-embedding, discontinuity analysis, and correlations with connector, PCB, and cable twinax models
- Utilize best practices in design, assembly, and calibration of test equipment setups which include VNAs, TDR/TDT, BERTs and high-speed oscilloscopes
- Generation of equipment control and data logging automation scripts for improved efficiency of test execution and report generation
- Design Verification Test (DVT) plans and execution on first article products including environmental stress margining (4-corners, bend)
- Coordinate with appropriate program, engineering, and product line organizations during test planning, execution, analysis and reporting phases
BASIC QUALIFICATIONS:
- BS/MS in Electrical Engineering, Optical Engineering, Physics, or related field
- 3+ years’ experience in high-speed interconnect and SI testing and qualification
- Experience with wide bandwidth SI test equipment including high port density VNAs, TDRs, BERTs, and high-speed oscilloscopes
- Experience with methods and execution of calibration and calibration verification techniques
- Knowledge of formatting and plotting techniques for differential S-parameters data (combining port densities, crosstalk, de-embedding)
- Demonstrates competencies in high accuracy AC and DC voltage measurements including noise and IR drop
- Experience with characterization of clock frequency references (spectral purity and phase noise)
- Competence in techniques for DVT over temperature, voltage, and environment stress conditions using thermal ovens / environmental chambers and data acquisition systems for sensors
- Proficiency in scripting and programming languages, XML and Python
- Understanding of the relevant specifications in IEEE, PCI-SIG, etc
- Experience with test and measurement of copper Re-Driver Active Linear (ACC) and Electrical Cables (AEC) is highly desirable
- Familiarity with OIF CMIS, PCIe link training, FEC behavior is highly desirable
- Must be able to communicate effectively (verbal and written) and have good organizational skills
Amphenol Corporation is proud of our reputation as an excellent employer. Our focus is to provide the highest level of support and responsiveness to both our employees and our customers, the world's largest technology companies. Amphenol Corporation offers the opportunity for career growth within a global organization. We believe that Amphenol Corporation is unique in that every employee, regardless of his or her position, has the ability to positively impact the business.
Amphenol is an “Equal Opportunity Employer” - Minority/Female/Disabled/Veteran/Sexual Orientation/Gender Identity/National Origin.
Location:
Nashua, NH
Department:
Engineering
Posted:
5/18/2026
Location Name:
Nashua
Wage:
Depends on Experience
INTRODUCTION
Amphenol Communications Solutions (ACS), a division of Amphenol Corporation, is a world leader in interconnect solutions for Communications, Mobile, RF, Optics, and Commercial electronics markets. Amphenol Corporation is one of the world’s largest designers and manufacturers of electrical, electronic and fiber optic connectors and interconnect systems, antennas, sensors and sensor-based products and coaxial and high-speed specialty cable. ACS has an expansive global presence in research and development, manufacturing, and sales. We design and manufacture a wide range of innovative connectors as well as cable assemblies for diverse applications including server, storage, data center, mobile, RF, networking, industrial, business equipment, and automotive.
Position Summary
Position: Test Engineer - Signal Integrity
Amphenol High Speed Products Group is the market leader for high speed, high bandwidth electrical connectors for the Telecom/Datacom market (Mobile Networks, Storage, Servers, Routers, Switches, etc.). Our products help to enable the electronics revolution and remain a key enabler for all the major Tier 1 OEMs globally. We have design, sales, and manufacturing locations globally and are currently seeking a Signal Integrity Engineer to join our High Speed IO Cables Business Unit based in Nashua, NH.
Responsibilities:
- Prepare and/or review test plans, test procedures, and test reports for digital, power, and high-speed signaling electronics
- Conduct measurements to characterize SI performance of active and passive copper cable products including S-parameters, impedance, eye patterns, and jitter
- Conduct evaluations of measurement data to ensure that program test requirements are met such as in IEEE, PCI-SIG, and customer specifications
- Perform test data de-embedding, discontinuity analysis, and correlations with connector, PCB, and cable twinax models
- Utilize best practices in design, assembly, and calibration of test equipment setups which include VNAs, TDR/TDT, BERTs and high-speed oscilloscopes
- Generation of equipment control and data logging automation scripts for improved efficiency of test execution and report generation
- Design Verification Test (DVT) plans and execution on first article products including environmental stress margining (4-corners, bend)
- Coordinate with appropriate program, engineering, and product line organizations during test planning, execution, analysis and reporting phases
BASIC QUALIFICATIONS:
- BS/MS in Electrical Engineering, Optical Engineering, Physics, or related field
- 3+ years’ experience in high-speed interconnect and SI testing and qualification
- Experience with wide bandwidth SI test equipment including high port density VNAs, TDRs, BERTs, and high-speed oscilloscopes
- Experience with methods and execution of calibration and calibration verification techniques
- Knowledge of formatting and plotting techniques for differential S-parameters data (combining port densities, crosstalk, de-embedding)
- Demonstrates competencies in high accuracy AC and DC voltage measurements including noise and IR drop
- Experience with characterization of clock frequency references (spectral purity and phase noise)
- Competence in techniques for DVT over temperature, voltage, and environment stress conditions using thermal ovens / environmental chambers and data acquisition systems for sensors
- Proficiency in scripting and programming languages, XML and Python
- Understanding of the relevant specifications in IEEE, PCI-SIG, etc
- Experience with test and measurement of copper Re-Driver Active Linear (ACC) and Electrical Cables (AEC) is highly desirable
- Familiarity with OIF CMIS, PCIe link training, FEC behavior is highly desirable
- Must be able to communicate effectively (verbal and written) and have good organizational skills
Amphenol Corporation is proud of our reputation as an excellent employer. Our focus is to provide the highest level of support and responsiveness to both our employees and our customers, the world's largest technology companies. Amphenol Corporation offers the opportunity for career growth within a global organization. We believe that Amphenol Corporation is unique in that every employee, regardless of his or her position, has the ability to positively impact the business.
Amphenol is an “Equal Opportunity Employer” - Minority/Female/Disabled/Veteran/Sexual Orientation/Gender Identity/National Origin.
See all 406+ STEM OPT Test Engineer Jobs
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Get Access To All JobsTips for Finding STEM OPT Authorization as a Test Engineer
Verify your CIP code supports STEM OPT
Not every engineering or computer science degree automatically qualifies. Cross-check your program's CIP code against the DHS STEM OPT designated degree list before applying, so you can confirm eligibility before your initial 12-month OPT ends.
Check E-Verify enrollment before accepting offers
STEM OPT requires your employer to be actively enrolled in E-Verify, not just registered. Ask your recruiter to confirm current enrollment status during the offer stage, since lapsed enrollment disqualifies an otherwise valid training plan.
Benchmark your test engineer offer against prevailing wages
Your I-983 training plan must show compensation commensurate with similarly situated U.S. workers. Use the OFLC Wage Search to find the DOL prevailing wage for your specific SOC code and metro area before signing your offer.
Target employers with active quality engineering LCA filings
Employers who have filed Labor Condition Applications for test or quality engineer roles have already navigated STEM OPT and H-1B visa sponsorship processes. Use Migrate Mate to filter job listings by employers with verified E-Verify enrollment and relevant LCA filing history.
File your I-983 training plan before your OPT end date
Your DSO must receive a complete I-983 and submit your STEM OPT extension application to USCIS at least 90 days before your initial OPT expires. Missing that window means a gap in work authorization even if approval eventually comes through.
Map your test engineering duties to O*NET job zones
Your I-983 training plan needs to describe how your daily role directly applies your STEM degree. Pull the O*NET occupation profile for Test Engineers to identify the degree requirements and core tasks that support your training plan narrative.
Frequently Asked Questions
Does a Test Engineer role qualify for STEM OPT authorization?
Yes, if your degree is in a qualifying STEM field such as electrical engineering, computer science, or mechanical engineering, and your employer assigns duties that directly apply that training. The role's SOC code must align with your degree's CIP code. Review the DHS STEM designated degree list and your I-20 to confirm the pairing before your DSO submits the extension application.
What does the I-983 training plan require for a Test Engineer position?
The I-983 must describe how your test engineering duties, such as developing test cases, analyzing failure data, or validating hardware against specifications, apply your STEM degree to real work. Your employer signs the plan and commits to supervision and mentorship. USCIS and your DSO review it together, and your employer must provide updated evaluations every six months throughout the extension period.
How do I confirm my employer is enrolled in E-Verify for STEM OPT?
Ask your recruiter or HR contact to provide their E-Verify company ID or a screenshot of their active enrollment status. E-Verify enrollment must be current at the time you begin working under STEM OPT authorization. An employer that was previously enrolled but allowed their participation to lapse does not satisfy the requirement, so verify this before your start date, not after.
What happens to my STEM OPT if my test engineer employer is acquired or rebranded?
A merger, acquisition, or name change requires a new I-983 to be filed with your DSO, since the legal employing entity has changed. Your USCIS-authorized STEM OPT period itself does not change, but the training plan must reflect the new employer's E-Verify enrollment and updated supervisory structure. Delays in filing an updated I-983 can create compliance gaps, so notify your DSO immediately when a corporate change is announced.
Where can I find Test Engineer jobs where the employer already supports STEM OPT?
Migrate Mate lists Test Engineer jobs filtered for employers with active E-Verify enrollment and documented LCA filing history, so you're not guessing about sponsorship willingness. Searching on Migrate Mate lets you focus your applications on companies that have already demonstrated they understand and support the STEM OPT extension process, including the I-983 training plan requirement.