Senior Software Engineer, Automated Test Systems (Hybrid - Aguadilla, PR)

RTX; Aguadilla (PR); Hybrid; USD 80,000 - 120,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Three weeks of vacation

401(k) with employer matching

Job summary

Collins Aerospace, an RTX business, seeks a Software Engineer in Aguadilla, PR to join an Agile development team building a reusable environment for automated testing and hardware-in-the-loop systems.

You will design modular C# software, integrate with test hardware, and develop automated test sequences. Collaboration with EE/RF teams, troubleshooting, and documentation are key parts of the role.

Qualifications

• Degree in Science, Technology, Engineering or Mathematics (STEM) and 5 years of experience, or an advanced degree with 3+ years.
• C# development experience with OO design and dynamic libraries.
• Proficiency with Visual Studio and software debugging methods.
• Experience with NI TestStand for test sequence development.
• Solid understanding of electrical engineering concepts and hardware interaction.
• Experience mentoring or guiding other engineers.
• Strong English communication skills across all levels of the organization.
• U.S. citizenship is required for access to program information.

Responsibilities

• Work in an Agile/Scrum team designing and supporting software for automated test stations.
• Develop modular C# applications and libraries interfacing with test hardware and embedded systems.
• Implement test sequences with NI TestStand and integrate with instruments and interfaces.
• Program and control test instruments using SCPI and related commands.
• Interface with JTAG, I2C, Ethernet, SSH, and gRPC protocols.
• Collaborate with electrical, RF and systems engineers on hardware/software integration.
• Debug hardware/software interactions and maintain test stations.
• Create and maintain documentation, interface specs and automated workflows.
• Provide on-site and remote support for development labs and station upgrades.

Skills

C# development

English communication

Mentoring

Software debugging

Education

STEM degree + experience

Tools

Visual Studio

NI TestStand

LabVIEW

Jira

Git

Subversion

Job description

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world‑class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world.Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. With a comprehensive portfolio and deep technical expertise, we help customers meet the demands of the global market. Join us and help shape the future of aerospace and defense.We are seeking a Software Engineer to join an Agile/Scrum Development team focused on building and supporting a reusable operating environment for automated product testing and hardware‑in‑the‑loop (HIL) systems.This role involves developing software that interfaces directly with complex test equipment, radio test fixtures, and hardware systems, and enabling automated testing, simulation, and validation of advanced communication systems.This position will sit at our Aguadilla, PR location. You must be residing in Puerto Rico at the time of starting employment. Relocation is not offered. This role is categorized as hybrid, with 3 days onsite and 2 days remote following the schedule assigned by the Manager.

What YOU will do:

• Work as part of an agile development team designing and supporting software for automated test stations used in the validation of communication systems and mixed‑signal electronic assemblies.
• Develop modular C# software applications, including dynamic libraries, that interface directly with automated test hardware, test fixtures, and embedded systems.
• Implement automated test sequences using NI TestStand and integrate them with custom software modules, test instruments, and communication interfaces.
• Program and control electronic test instruments using SCPI and related command sets.
• Interface with a wide range of communication protocols including JTAG, I2C, and Ethernet‑based methods such as SSH and gRPC.
• Collaborate closely with electrical, RF, and systems engineers to define hardware/software integration requirements, wiring configurations, and station architecture.
• Debug hardware/software interactions, troubleshoot test equipment issues, and support the setup, configuration, and maintenance of test stations.
• Design and maintain documentation, interface specifications, and automated test workflows.
• Provide on‑site and remote support for development labs, including software updates, station upgrades, and issue resolution.

What YOU will learn:

• You will learn about our growing engineering team in Puerto Rico; What we do? Who we support? How we work?
• You will learn the technologies of today and tomorrow which we count on to maintain world leadership in the aerospace industry.
• You will learn why people enjoy and feel fulfilled by working in our industry.

Qualifications you must have:

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience.
• C# development experience, including class-based design, object‑oriented programming, and dynamic library creation
• Proficiency with Visual Studio and general software debugging methods
• Experience with NI TestStand for test sequence development
• Solid understanding of electrical engineering concepts and hardware interaction
• Experience mentoring or guiding other engineers
• Demonstrated professional experience communicating in English across all levels of an organization (verbal and written)
• U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract

Qualifications We Prefer:

• Professional experience developing software for automated test systems, ATE environments, or hardware‑in‑the‑loop setups.
• Experience using communication protocols such as JTAG, I2C, and Ethernet‑based methods (SSH, gRPC).
• Ability to interface with test instruments using SCPI.
• Knowledge of LabVIEW for instrument integration or station development.
• Familiarity with hardware debugging tools such as logic analyzers, protocol analyzers, and RF test equipment.
• Experience with development tool sets, for example, Jira, Subversion/Git/Version Management.
• UX design experience, especially for operator‑facing test applications.
• Experience with automated test environments (Python).

What We Offer:

Some of our competitive benefits package includes:

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds
• Participation in the Employee Scholar Program (ESP)
• Life insurance and disability coverage
• Employee Assistance Plan, including up to 8 free counseling sessions.
• And more!

Collins Aerospace, an RTX business, is a leader in technologically advanced and intelligent