Software Engineer 4 - HIL

Position Overview

CTS International is partnering with a prestigious client to support a cutting-edge software engineering initiative focused on Continuous Integration / Continuous Deployment (CI / CD) pipelines and Artificial Intelligence (AI) tool integration. We are seeking a broad range of engineering talent—from experienced professionals to Senior-level and Subject Matter Experts (SMEs) / Technical Lead Engineers (TLEs)—to join a high-impact team in Cambridge, MA.

This is a dynamic opportunity to influence the future of test automation and verification in advanced software and avionics systems. Engineers in this role will be key players in developing, executing, and maintaining test environments that mirror real-world scenarios in AI-enhanced, hardware-in-the-loop (HIL) platforms.

Key Responsibilities

• Set up and configure complex test environments including hardware, software, and networking to emulate production-level conditions.
• Design, develop, and conduct comprehensive software test and verification procedures to ensure reliability, performance, and functionality.
• Collaborate with stakeholders to define test strategies, validate software requirements, and optimize testability.
• Create and maintain automated test frameworks and scripts to drive efficiency across the verification lifecycle.
• Generate and present detailed test plans, test cases, and test reports aligned with rigorous software standards and security protocols.
• Identify and resolve defects, vulnerabilities, and performance bottlenecks during system testing.
• Implement and operate Hardware-in-the-Loop (HIL) test environments for avionics and embedded systems.
• Contribute to Agile software development lifecycles and integrate with DevSecOps teams to embed testing into CI / CD workflows.

Senior-Level (Level 4 and Level 5) Requirements

• Leads the setup and configuration of test environments, including hardware, software, and network configurations to replicate production environments.
• Familiar with automated testing methodologies and frameworks to ensure rapid and efficient test execution is a plus.
• Willingness to use AI Tools in HIL development required; familiarity is a plus but not required.
• Ability to collaborate effectively with CI / CD (DevSecOps) teams to integrate software deployment with hardware-in-the-loop testing environments.
• Proficient in NI TestStand, NI VeriStand, and NI LabVIEW for HIL testing and automation.
• Excellent collaborator with cross-functional teams to achieve a common goal, including a teamwork mindset, good communication skills, and a desire for fast-paced development.
• Advises on the setup and configuration of test environments, including hardware, software, and data configurations to replicate production environments.
• Familiarity with FPGA testing / architecture is a plus.
• Sets up and configures test environments, including hardware, software, and network configurations to replicate production environments.
• Excellent collaborator with cross-functional teams to achieve a common goal, including a teamwork mindset, good communication skills, and a desire for fast-paced development.
• Proficient in NI TestStand, NI VeriStand, and NI LabVIEW for HIL testing and automation, or similar HIL platforms.
• Hands-on experience with NI PXIe systems and hardware integration.
• Knowledge of avionics communication protocols (MIL-STD-1553, ARINC 429, CAN) a plus.
• Experience in verifying and validating avionics display systems a plus.
• Strong programming skills in C / C++, Python, MATLAB or similar.
• Excellent problem-solving and troubleshooting abilities.
• Familiarity with data acquisition and signal processing techniques.
• Familiar with version control systems (e.g., Git).
• Experienced with automated test and verification.
• Comfortable with lab and hardware systems / equipment.

Basic Qualifications (Required Skill / Experience) :

• Bachelor's degree and typically 3 or more years' experience in a software engineering classification or a Master's degree with 1 year of experience in a software engineering classification.
• Must be able to work onsite in Cambridge, MA

Preferred Qualifications (Desired Skills / Experience) :

• Education or experience in modern HIL techniques and / or use of AI Tools
• Ability to obtain a U.S. Security Clearance if sponsored.

Education / experience typically acquired through advanced technical education from an accredited course of study in engineering, computer science, mathematics, physics or chemistry (e.g. Bachelor) and typically 9 or more years' related work experience or an equivalent combination of technical education and experience (e.g. PhD+4 years' related work experience, Master+7 years' related work experience). In the USA, ABET accreditation is the preferred, although not required, accreditation standard.

How to Apply for Position :

Click the link below to submit your application directly :

Jobs / Detail / 377237?LinkedIn

If this opportunity excites you, please reach out to our recruiting team, at or call us at ‪‬.