Sr Software Engineer

RTX; Oklahoma; On-site; USD 120,000 - 180,000; Full time

Benefits offered by this job

Medical insurance

Three weeks vacation

401(k) with employer match

Tuition reimbursement

Relocation assistance

Job summary

Collins Aerospace, an RTX company, seeks a software engineer onsite in Largo, FL. You will participate in cross-functional teams, applying agile methods to drive architecture, design, integration, test, and field support for complex systems requiring a U.S. government clearance.

The role emphasizes C++ development, real-time/embedded programming, and collaboration across engineering disciplines to deliver mission-critical solutions.

Qualifications

• Active and transferable U.S. government clearance is required before start.
• Experience across the software development lifecycle.
• Proven C++ development experience.
• Experience with real-time/embedded programming.
• STEM degree with 5+ years of experience or advanced degree with 3+ years.

Responsibilities

• Participate in cross-functional, agile product teams to develop software.
• Manage full lifecycle from architecture and design to integration, test, and field support.

Skills

C++

Real-time systems

Embedded programming

Team collaboration

Security clearance

Education

STEM degree

Tools

Jenkins

Python

SysML

UML

Job description

Date Posted: 2026-11-02

Country: United States of America

Location: US-FL-LARGO-382ST ~ 7887 Bryan Dairy Rd ~ BLDG 400

Position Role Type: Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements: Active and transferable U.S. government issued security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance Type: Secret - Current

Security Clearance Status: Active and existing security clearance required on day 1

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.

Raytheon Company, Managed by Collins Aerospace

Collins Aerospace, an RTX company, is a leader in engineering and proposal teams to successfully execute programs and prepare responsive proposals aimed at making the world a safer place. Come support those who provide us with all the freedoms we enjoy. Our commitment to providing an environment that supports innovation, teamwork, and growth opportunities are primary reasons engineers come to work at RTX.

What You Will Do

• Participate in collaborative, cross-disciplined integrated product teams, often employing agile software development techniques
• Responsible for the full lifecycle of product development, from architecture and design, through integration, test, and field support

Full-time on-site position

Qualifications You Must Have

• Active and transferable U.S. government issued security clearance is required prior to start date
• U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
• Experience in Software Engineering to include experience working various phases of the software development lifecycle
• Experience with Software Development Using C++
• Experience with real-time operating systems (RTOS), embedded programming, processor/board architecture and design
• Experience working in a collaborative team environment that requires communication with other engineering disciplines, Program, and external stakeholders
• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 5 years prior relevant experience or an Advanced Degree in a related field and minimum 3 years of experience

Qualifications We Prefer

• Applied experience in Unified Modeling Language (UML) and Object-Oriented Analysis and Design (OOA/D)
• Understanding standard system engineering design artifacts such as Use Cases and SysML diagrams.
• Experience with Agile lifecycle process including Scrum, Continuous Integration, and Test-Driven Development Methodologies
• Experience with DevOps, Jenkins and automated testing
• Exposure to Model Driven Development (MDD)
• Exposure to CORBA messaging
• Experience with TCP/IP, UDP/IP messaging, and client/server architecture
• Experience with software integration on custom hardware
• Scripting language (e.g. Python)

What We Offer:

• Medical, dental, and vision insurance
• Three weeks of vacation for newly hired employees
• Generous 401(k) plan that includes employer matching funds and separate employer retirement contribution, including a Lifetime Income Strategy option
• Tuition reimbursement program
• Student Loan Repayment Program
• Life insurance and disability coverage
• Optional coverages you can buy pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, group legal, ID theft protection
• Birth, adoption, parental leave benefits
• Health, fertility, and family planning
• Adoption Assistance
• Autism Benefit
• Employee Assistance Plan, including up to 10 free counseling sessions
• Healthy You Incentives, wellness rewards program
• Doctor on Demand, virtual doctor visits
• Bright Horizons, child and elder care services
• Teladoc Medical Experts, second opinion program
• Eligible for relocation
• And more!

#MISENG

At Collins, the paths we pave together lead to limitless possibilities. And the bonds