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

Prattwhitney; Oak Grove (VA); On-site; USD 95,500 - 181,700; Full time

Benefits offered by this job

Medical Insurance

Vacation 3 weeks

401(k) Plan

Tuition reimbursement

Student loan repayment

Life insurance

Disability coverage

Relocation assistance

Job summary

RTX, a premier aerospace and defense company, seeks a Senior Software Engineer specialized in front‑end training system software to join the Sterling, VA team onsite. You will build, test, and integrate front‑end components for realistic simulators and training systems with C# and WPF on agile teams.

Ideal candidates bring strong C# and WPF experience, Agile practices, and the ability to work across teams; US government security clearance is required. Occasional travel to sites may be necessary.

Qualifications

• Degree in science, technology, engineering or mathematics (STEM) with 5+ years of experience.
• Active and transferable U.S. government security clearance required.
• Proficiency in C# and WPF front-end development.

Responsibilities

• Design, develop, integrate, and test software on cross‑functional agile teams to deliver solutions within budget, scope, and schedule constraints.
• Serve as a highly motivated software development focal with ownership of objectives.
• Assist in analysis and decomposition of features.
• Make and influence decisions affecting cost, schedule, and technical performance at team level.
• Perform multi‑threaded software debugging.
• Work independently with limited supervision.
• Travel to domestic and international customer sites to support training events and product installations.
• Contribute to software and systems engineering requirements capture and analysis.

Skills

C#

WPF

Agile development

Multithreading

DevSecOps

Python scripting

Education

Bachelor's degree in STEM

Tools

Visual Studio

SVN

Git

ClearCase

JIRA

Confluence

Job description

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

Company and Role Overview

At RTX, the world's largest aerospace and defense company, 185,000 great minds are united by purpose and inspired to make a difference by 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. Collins Aerospace is a leader in technologically advanced, intelligent solutions that help redefine the aerospace and defense industry. We help customers meet the demands of the global market and navigate the fast‑paced global environment.

Position Details

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. Devices range in complexity from desktop training to high‑fidelity weapon system and full‑flight training systems, including full visual motion and simulator interoperability.

What You Will Do

• Design, develop, integrate, and test software on cross‑functional agile teams to deliver solutions within budget, scope, and schedule constraints.
• Serve as a highly motivated software development focal who exhibits 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.

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.

We Prefer

• Excellent written and oral communication skills.
• Familiarity with Windows development environments.
• Candidate exhibits leader‑like qualities and has a willingness to share knowledge and build up 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.

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 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 such as pet insurance, home and auto insurance, additional life and accident insurance, critical illness insurance, 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.

Other particulars:

• The salary range for this role is 95,500 USD - 181,700 USD.
• 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 on the specific business unit as well as whether or not the position is covered by a collective‑bargaining agreement.
• Annual incentive compensation programs may apply.
• 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 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 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.