Senior Software Engineer– Front-End Training System Software (Onsite)

Collins Aerospace; Sterling (VA); On-site; USD 95,500 - 181,700; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Three weeks vacation for newly hired

401(k) plan with employer matching

Tuition reimbursement

Student Loan Repayment Program

Life insurance and disability coverage

Relocation assistance

Job summary

Collins Aerospace, an RTX company, seeks a Senior Software Engineer – Front-End Training System Software for onsite work in Sterling, VA. You will design, develop, and test cross-functional training software, focusing on desktop front-end interfaces using C# and WPF within agile teams.

The role requires active US security clearance, strong collaboration, and willingness to travel for training events and installations.

Qualifications

• Active and transferable U.S. government issued security clearance is required prior to start date.
• Experience with C# and WPF front-end development.
• Experience with agile development practices and general software engineering design principles.
• Excellent written and verbal communication skills.

Responsibilities

• Design, develop, integrate, and test software on cross-functional agile teams to deliver solutions within budget, scope, and schedule constraints.
• Act as a focal point for software development ownership and accountability for objectives.
• Assist in analysis and decomposition of features.
• Influence decisions affecting cost, schedule, and technical performance at a team level.
• Perform multi-threaded software debugging.
• Travel to domestic and international customer sites to support training events and product installations.

Skills

C#

WPF

Agile methodologies

Front-end development

Multithreading debugging

Education

Bachelor’s degree in STEM

Advanced degree in related field

Tools

Visual Studio

SVN

Git

ClearCase

JIRA

Confluence

Crucible

Bamboo

Python

Job description

Location: US-VA-STERLING-291 ~ 22640 Davis Dr ~ DAVIS

Date Posted: 2026-07-23

Country: United States of America

Location: US-VA-STERLING-291 ~ 22640 Davis Dr ~ DAVIS

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

Senior Software Engineer – Front-End Training System Software (Onsite) 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.

Collins Aerospace, an RTX company, is a global leader providing technologically advanced and intelligent solutions across the aerospace and defense industry. We leverage our extensive capabilities, comprehensive portfolio, and deep expertise needed to tackle our customers’ most complex challenges and navigate the demands of a fast‑paced global market.

We are currently searching for a Sr. Software Engineer to join our team in Sterling VA within the Strategic Defense Solutions (SDS) business area. Our teams develop and build highly realistic simulators and training systems for both military and commercial customers. We deliver highly specialized training for some of the most demanding jobs in aviation. Devices range in complexity from desktop training all the way to high fidelity weapon system and full‑flight training systems including full visual motion and simulator interoperability. In this position, you will become a technical focal for the design, implementation, and testing of complex multi-platform training device software and their associated user interfaces. This position requires a highly motivated self‑starter who can learn quickly and can tackle complex problems and lead limited development activities. Candidates with agile development experience and the desire to grow into agile leadership roles are strongly encouraged to apply! This position requires a US security clearance. Most aspects of the job are done in a classified lab environment and requires a daily onsite presence.

What You Will Do:

• Design, develop, integrate, and test software on cross-functional agile teams to deliver solutions within budget, scope, and schedule constraints
• Highly motivated software development focal who exhibit ownership of and accountability for committed objectives
• Assist in analysis and decomposition of features
• Make and influence decisions which impact cost, schedule, and technical performance at a team level
• Perform multi-threaded software debugging
• Work independently with limited supervision
• Perform bidding and proposal activities to support the acquisition of new business
• Contribute to software and systems engineering requirements capture and analysis
• Travel to domestic and international customer sites to support training events and product installations

Qualifications You Must Have:

• 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
• Active and transferable U.S. government issued security clearance is required prior to start date
• Must have extensive experience working with C# and WPF for front-end development
• Have experience with agile development practices and general software engineering design principles

Qualifications We Prefer:

• Excellent written and oral communication skills
• Familiarity Windows development environments
• Candidate exhibits leader-like qualities and has a willingness to share their knowledge and build up their peers
• Proven track record of cross-team coordination and customer working group collaboration
• Experience using Visual Studio
• Familiarity with DevSecOps and Agile development methodologies
• Familiarity with scripting languages (Python, Perl, etc.)
• Usage of source code control tools (SVN, GIT, ClearCase, etc.)
• Usage of ALM tools (JIRA, Confluence, Crucible, Bamboo)
• Previous simulation experience
• Previous avionics experience

Do you want to be a part of something bigger? A team whose impact stretches across the world, and even beyond? At Collins Aerospace, our Mission Systems team helps civilian, military and government customers complete their most complex missions — whatever and wherever they may be. Our customers depend on us for intelligent and secure communications, missionized systems for specialized aircraft and spacecraft and collaborative space solutions. By joining our team, you’ll have your own critical part to play in ensuring our customer succeeds today while anticipating their needs for tomorrow. Are you up for the challenge? Join our mission today.

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 illnessinsurance, group legal, ID theft protection
• Birth, adoption, parental leave benefits
• Ovia 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 assistance
• And more!

Onsite: Employees who are working in Onsite roles will work primarily onsite. This includes all production and maintenance employees, as they are essential to the development of our products.

At Collins, the paths we pave together lead to limitless possibility. And the bonds we form – with our customers and with each other -- propel us all higher, again and again.

As part of our commitment to maintaining a secure hiring process, candidates may be asked to attend select steps of the interview process in-person at one of our office locations, regardless of whether the role is designated as on-site, hybrid or remote.

The salary range for this role is 95,500 USD - 181,700 USD. The salary range provided is a good faith estimate representative of all experience levels. RTX considers several factors when extending an offer, including but not limited to, the role, function and associated responsibilities, a candidate’s work experience, location, education/training, and key skills.

Hired applicants may be eligible for benefits, including but not limited to, medical, dental, vision, life insurance, short-term disability, long-term disability, 401(k) match, flexible spending accounts, flexible work schedules, employee assistance program, Employee Scholar Program, parental leave, paid time off, and holidays. Specific benefits are dependent upon the specific business unit as well as whether or not the position is covered by a collective-bargaining agreement.

Hired applicants may be eligible for annual short-term and/or long-term incentive compensation programs depending on the level of the position and whether or not it is covered by a collective-bargaining agreement. Payments under these annual programs are not guaranteed and are dependent upon a variety of factors including, but not limited to, individual performance, business unit performance, and/or the company’s performance.

This role is a U.S.-based role. If the successful candidate resides in a U.S. territory, the appropriate pay structure and benefits will apply.

RTX anticipates the application window closing approximately 40 days from the date the notice was posted. However, factors such as candidate flow and business necessity may require RTX to shorten or extend the application window.

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 or veteran status, or any other applicable state or federal protected class. RTX provides affirmative action in employment 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.

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