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The Wireless Test Engineer – 4G/5G PHY & Stack role at Espace is an on-site position located in Arlington, TX.

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Wireless Test Engineer – 4G/5G PHY & Stack

EspaceArlington, TX1d ago

PythonJira

Ready to make connectivity from space universally accessible, secure and actionable? Then you’ve come to the right place!

E-Space is bridging Earth and space to enable hyper-scaled deployments of Internet of Things (IoT) solutions and services. We are building a highly-advanced low Earth orbit (LEO) space system that will fundamentally change the design, economics, manufacturing and service delivery associated with traditional satellite and terrestrial IoT systems.

We’re intentional, we’re unapologetically curious and we’re 100% committed to innovate space-based communications and deliver actionable intelligence that will expand global economies, protect space and our planet and enhance our overall quality of life.

We are looking for a Wireless Test Engineer to help us validate next-generation 4G/5G communications systems that will power our constellation and ground infrastructure.

In this role, you will own the test environment and test strategy for 3GPP-based wireless features, with a strong focus on PHY and protocol stack verification. You will develop automated test suites, analyze logs and pcap traces, and work closely with software, systems, and RF engineers to drive issues to closure and ensure high-reliability deployments for our space and ground products.

This position is based in our Arlington, TX office.

What you will do:

Set up and maintain the scripting and automation environment around wireless test setups (lab and HIL).

Derive, design, and implement test cases for 3GPP Stack and PHY-level features (LTE and preferably 5G NR).

Develop Python (and/or equivalent) scripts to automate test execution, log collection, and result analysis; contribute light C code where needed.

Perform software regression testing to validate new features, bug fixes, and releases.

Analyze test logs and pcap files to perform detailed failure analysis, identify root causes, and provide clear remediation recommendations.

Use wireless measurement and channel emulation equipment (e.g., Amarisoft, Viavi, Propsim, Spirent, Keysight, Rohde & Schwarz) to execute and debug test scenarios.

Track defects and issues using an issue-tracking system such as Jira, driving them through the full lifecycle with clear, reproducible descriptions.

Prepare and deliver concise test reports, maintain test repositories, and contribute to continuous improvement of test coverage and quality processes.

Collaborate closely with cross-functional teams (SW, FW, RF, systems, product) to ensure testability is designed into new features from the outset.

What you bring to this role:

Bachelor’s or Master’s degree in Electrical Engineering, Communication Theory, Software Engineering/Development, or a related field.

5+ years of hands-on test engineering experience in wireless technology.

Documented experience testing 3GPP Stack and PHY systems, with strong expertise in LTE and preferably 5G NR.

Proficiency in Python scripting (or equivalent automation language), with familiarity in C.

Practical experience using wireless test and measurement tools such as Amarisoft, Viavi, Propsim, Spirent, Keysight, Rohde & Schwarz, or similar.

Experience with issue-tracking systems (e.g., Jira) and structured test processes.

Strong skills in analyzing logs and pcap captures, performing structured failure analysis, and clearly documenting findings.

Excellent communication skills and the ability to work in a fast-moving, cross-disciplinary environment.

Bonus points for the following:

Experience testing satellite, non-terrestrial networks (NTN), or other mission-critical wireless systems.

Background in test architecture for HIL systems or large-scale automated regression frameworks.

Familiarity with CI/CD pipelines and integrating automated tests into build/release processes.

Experience in a startup or fast-paced R&D environment.

This is a full time, exempt position, based out of our Arlington office. The total compensation packaged will be determined by various factors such as your relevant job-related knowledge, skills, and experience.

We are redefining how satellites are designed, manufactured and used—so we’re looking for candidates with passion, deep knowledge and direct experience on LEO satellite component development, design and in-orbit activities. If that’s your experience – then we’ll be immediately wow-ed.

E-Space is not currently able to provide employment sponsorship for candidates who do not hold work authorization for the location of this role.

Why E-Space is right for you:

As a member of our team, you will play a crucial role in driving our success. Our team members have a strong sense of dedication and responsibility; this includes a strong commitment to our mission to create an entirely new suite of global capabilities to improve lives, business efficiencies and build a smarter planet. This means that there will be times when extra hours, including nights and weekends, may be needed to meet critical deadlines and mission goals. In return, we offer a dynamic work environment with opportunities for professional growth and development and the chance to make a meaningful impact in a high-growth industry.

We want you to make the most of your journey at E-Space. That’s why we support and invest in the physical, emotional and financial well-being of our team members and their families. Some of what you can expect when working at E-Space:

• An opportunity to really make a difference

• Sustainability at our core

• Fair and honest workplace

• Innovative thinking is encouraged

• Competitive salaries

• Continuous learning and development

• Health and wellness care options

• Financial solutions for the future

• Optional legal services (US only)

• Paid holidays

• Paid time off

Wireless Test Engineer – 4G/5G PHY & Stack

What you will do:

What you bring to this role:

Bonus points for the following:

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