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Salary
$87k – $165k per year
Location
Hybrid (Hartford, United States)
Seniority
Senior · 8+ years exp
Visa
H-1B filings in 12 months: 10 · green card filings: 1
Employment
Full-Time

Confirmed on the employer's own hiring board on Nov 15, 2026. First seen by Alion on Nov 12, 2026. RTX scores B on the Alion truth index.

Overview
Company
Impact
Profile match

RTX

RTX is an American aerospace and defense company formed in 2020 by the merger of United Technologies and Raytheon. It operates through three businesses: Collins Aerospace, which makes avionics, aircraft interiors and aerostructures, Pratt & Whitney, which builds commercial and military jet engines, and Raytheon, which produces missiles, air defense systems such as Patriot, radars and sensors. Its customers include airlines, aircraft manufacturers, the United States Department of Defense and allied governments. The company is headquartered in Arlington, Virginia, United States.

Date Posted:

2026-11-12

Country:

United States of America

Location:

US-CT-EAST HARTFORD-ETC ~ 400 Main St ~ BLDG ETC

Position Role Type:

Remote

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

U.S. citizenship is required, as only U.S. citizens are authorized to access information under this program/contract.

Security Clearance Type:

None/Not Required

Security Clearance Status:

Not Required

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.

Pratt & Whitney is a world leader in the design, manufacture and service of aircraft engines and auxiliary power systems and has been revolutionizing modern flight for over 100 years. Join us and help shape the future of aerospace and defense.

Job Summary:

FloSimLX (Fleet Logistics Simulation Large Model) is a web-based application maintained by Pratt & Whitney for tracking internal engineering authorization requests. As part of the FloSimLX team, the P3 Senior Software Engineer is responsible for ensuring constant uptime on the application as well as accommodating a steady stream of requests from users to patch defects, extend existing functionality, and add new utilities to the platform. The role may also be called upon to develop for other P&W systems that are adjacent to or communicate with FloSimLX.

The ideal candidate has a full-stack background with experience using C++ and development for operations research. Hands-on experience with Visual Studio or similar development environment, GitHUB and multi-platform (AWS Cloud, Azure Cloud, Windows 11, and Linux based) will go a long way. Interpersonal and communication skills will allow this candidate to excel at the company, as the software engineer will be tasked with occasionally reaching out to stakeholders for clarification and feedback on requests. As part of a small but robust team, the software engineer will also help coordinate sprint planning and participate in story-pointing sessions to ensure a consistent release cycle and set appropriate expectations for stakeholders.

What You Will Do:

  • Ability to read and discern requirements documents and technical, non-technical information.
  • Ensure security, develop and deploy bugfixes and new features for the FloSimLX application.
  • Ensure high performance of application and execution.
  • Ability to identify and remedy technical debt.
  • Ability to model data and algorithms using design patterns.

Qualifications You Must Have:

  • Bachelor's degree in a technical discipline from an accredited college/university w/minimum 8+ years of experience OR advanced degree in a software discipline from an accredited college/university w/minimum 5+ years of experienc.
  • This position may require access to systems/tools that are restricted to individuals who possess US citizenship.
  • 4+ years of C++ programming experience including frameworks such as Visual Studio and C++ Class libraries.
  • Knowledge of cloud development vs desktop development methods.
  • Familiarity with relational databases and NoSQL based databases and industry experience with SQLAlchemy.

Qualifications We Prefer:

  • Skilled communicator with an ability to maintain productive relationships in difficult situations.
  • Good analytical, problem solving, and project management skillsAbility to work in cross-functional teams on a wide variety of tasks and with limited supervision.
  • Experience with continuous process improvement.
  • JavaScript / jQuery, Oracle SQL Developer, JetBrains PyCharm, Linux or Windows administration, Jira, Confluence and Agile Methods.

Learn More & Apply Now!

What is my role type?

In addition to transforming the future of flight, we are also transforming how and where we work. We’ve introduced role types to help you understand how you will operate in our blended work environment. This role is:

Remote: Employees who are working in Remote roles will work primarily offsite (from home).

Candidates will learn more about role type and current site status throughout the recruiting process. For onsite and hybrid roles, commuting to and from the assigned site is the employee’s personal responsibility.

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 86,800 USD - 165,200 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.

Privacy Policy and Terms:

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