Test Software Engineer (LabVIEW, Matlab, Python, and C#) (Contract & FTE)-2

REALIGN LLC; Sunnyvale (CA); On-site; USD 110,000 - 140,000; Full time

Job summary

REALIGN LLC in Sunnyvale, CA is seeking a Test Software Engineer skilled in LabVIEW, Matlab, Python, and C# to develop and debug test software for optical bench testing. This on-site role requires hands-on work with Test equipment, NI hardware, and DLLs to interface LabVIEW with Python/Matlab as needed.

The engineer will design software architecture, implement data acquisition, and collaborate with manufacturing to deploy robust solutions.

Qualifications

• Experience with LabVIEW, Matlab, Python, and C#.
• Experience updating existing code for sustaining test systems.
• Knowledge of test equipment integration and data acquisition.

Responsibilities

• Develop and debug test equipment software.
• Work with testing equipment to develop user-friendly software.
• Design software architecture and optimize performance.
• Perform data acquisition and analysis.
• Provide documentation for designs.
• Collaborate with manufacturing to deploy into production.
• Support internal and external stakeholders.
• Follow company policies and procedures.

Skills

LabVIEW

Matlab

Python

C#

Test automation

Tools

NI cards

Spectrum Analyzer

Oscilloscope

USB interfacing

Job description

Test Software Engineer (LabVIEW, Matlab, Python, and C#) (Contract & FTE)-2

Sunnyvale, California 94043 Posted September 8th, 2026

Role - Test Software Engineer (LabVIEW, Matlab, Python, and C#)

Location – Sunnyvale, CA (100% on-site)

Contract & FTE Both

Certification in LabVIEW is preferred and little bit of python is advantage.

Role Description:

In this role the test software engineer will be responsible for developing and debugging LabVIEW and Python based code. Develop LabVIEW software to utilize different testing equipment on optical bench interphasing DUT (Device under test) with test equipment such as Spectrum analyzer, Oscilloscope, Lasers, Optical transceivers, NI cards, interfacing with custom PCBAs through USB etc. DLLs, Python and Matlab code will be utilized to interface with Labview as necessary.

DUTIES AND RESPONSIBILITIES

• Develop and debug test equipment, executable software, and code.
• Works with testing equipment to develop user friendly software.
• Take on various engineering tasks which will help to acquire new skills.
• Design software architecture and optimize the performance.
• Data acquisition and manipulation using different hardware.
• Provide internal customer support to internal and external stakeholders in person, over the phone or via email.
• Provide documentation for new or existing designs.
• Follow and familiarize oneself with company policies and procedures.
• Collaborate with the manufacturing team to deploy into production, identify and resolve test code related issues to ensure smooth production.

REQUIRED SKILLS

• Experience with using LabVIEW, Matlab, Python, and C#
• Experience in learning, managing, and updating existing code for sustaining test systems
• Excellence in developing test systems for new products and augment the system to meet manufacturing needs utilizing DFX techniques
• Excellent technical writing abilities
• Excellent conceptual, analytical, and problem-solving abilities.
• Excellent computer skills – CAD, word processing, and spreadsheets.
• Confidence to evaluate risks and tradeoffs and present solution options to management.
• Ability to influence schedules.
• Strong analytical and problem-solving skills required.

Certifications

• Certified LabVIEW Associate Developer (CLAD)
• MathWorks Certification

Job Type

Full Time

Job Category

IT