Senior C/C++ Software Development Engineer

globalhr; Concord, Tewksbury (MA, MA); On-site; USD 86,800 - 165,200; Full time

Benefits offered by this job

Relocation assistance

On-site SCIF facility

Job summary

RTX, the world’s largest aerospace and defense company, seeks a Senior Software Engineer to design and deliver real-time C/C++ software for the Patriot system in Tewksbury, MA.

You will collaborate with cross-functional teams to define features, troubleshoot and optimize code, and document architecture while supporting off-hours testing in a SCIF environment. Relocation assistance is available.

Qualifications

• STEM degree and minimum 5 years of relevant experience.
• Active Secret security clearance required.
• Experience with C/C++ in complex real-time or embedded systems.
• Experience on Unix/Linux platforms.

Responsibilities

• Design, develop, and maintain software applications using C and C++ for real-time systems.
• Collaborate with cross-functional teams to define and implement new features.
• Troubleshoot, debug, and optimize code for performance and efficiency.
• Document system architecture and design specifications.

Skills

C/C++ real-time development

Unix/Linux development

Security clearance

Embedded systems

Multithreading

Education

STEM degree

Tools

Git

ClearCase

tcsh

bash

Job description

At RTX, the world’s largest aerospace and defense company, we develop cutting‑edge solutions to protect our nation and allies. Join us as a Senior Software Engineer on the Patriot Software Team in Tewksbury, Massachusetts, where you will design and deliver real‑time C/C++ software for the world’s pre‑eminent air defence system.

What You Will Do

• Design, develop, and maintain software applications using C and C++ for complex real‑time systems and applications.
• Collaborate with cross‑functional teams to define, design, and implement new features, ensuring system integration and scalability.
• Troubleshoot, debug, and optimize existing code for performance and efficiency in complex environments.
• Write and maintain comprehensive documentation for software applications, including system architecture and design specifications.
• Support light travel and off‑hours testing (2nd or 3rd shift) when required.
• Maintain exclusive on‑site presence in a SCIF environment.

Qualifications You Must Have

• Typical requirement of a STEM degree and a minimum of 5 years of relevant experience.
• Active Secret security clearance.
• Experience developing complex systems and applications using C/C++.
• Experience with embedded systems, real‑time systems, or large‑scale applications.
• Experience in a Unix/Linux operating system.

Qualifications We Prefer

• Understanding of data structures, algorithms, and software design principles, especially in high‑concurrency and distributed systems.
• Experience with multithreading, memory management, and performance optimization.
• Experience with network communication protocols, shell scripting (tcsh, csh, bash), and development tools like Git and Clearcase.
• Experience with embedded real‑time operating systems (e.g., VxWorks, Integrity).
• Familiarity with Agile and Scrum methodologies.

What We Offer

Our values drive our actions: Safety, Trust, Respect, Accountability, Collaboration, and Innovation.

Relocation eligible – relocation assistance available.

Salary and Benefits

Salary range: 86,800 USD – 165,200 USD. Hired applicants may be eligible for medical, dental, vision, life insurance, short‑term and long‑term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, employee scholar program, parental leave, paid time off, holidays, and incentive compensation programs, depending on the specific business unit and collective‑bargaining agreements.

Interview Process

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend interview steps in‑person at one of our office locations, regardless of the role’s designation.

Equal Opportunity

RTX is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, veteran status, or any other applicable protected class. RTX also provides affirmative action for qualified individuals with a disability and protected veterans in compliance with Section 503 of the Rehabilitation Act and the Vietnam Era Veterans’ Readjustment Assistance Act.