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Added 2 mins ago
WI
(USA) Principal, Software Engineer
Walmart Inc.
United States
- $110,000 to $220,000 USD / year
The Principal Software Engineer leads platform engineering efforts by delivering scalable, cloud-native solutions and reusable infrastructure components. This role drives the full software…
Added 2 mins ago
WI
Distinguished, Software Engineer (Architect) | Omni Services | Sunnyvale
Walmart Inc.
United States
- $169,000 to $338,000 USD / year
15+ years of software engineering experience, including 8+ years in Architect, Principal Architect, Distinguished Engineer/Architect, or equivalent senior technical leadership roles.
Added 2 mins ago
MA
2027 Technology Development Program - Operating Systems Engineer
Manufacturers and Traders Trust Co
Buffalo, NY
- $29.57 to $43.99 USD / hour
The Operating Systems team supports the Windows Server and Red Hat Linux platforms that help power the Bank’s technology environment, with a primary focus on operating system infrastructure…
Added 4 mins ago
Distinguished Engineer
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Mason, OH · Atlanta, GA · Indianapolis, IN
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Software Engineer 2 - C++ Maps Platform
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Software Engineer 2
Garmin International, Inc.
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Senior Core Infrastructure Engineer
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Santa Clara, CA · Seattle, WA
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Added 4 mins ago
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Fluent in specialized software tools or programming languages relevant for space systems, such as MATLAB, Python, C++, or similar
Added 5 mins ago
Network Engineer III
LEIDOS, INC.
Huntsville, AL · Las Cruces, NM · Merritt Island, FL · Stennis Space Center, MS · Houston, TX · Greenbelt, MD · Hampton, VA · Mountain View, CA · Wallops Island, VA · Cleveland, OH · Washington, DC
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Added 5 mins ago
Data Scientist
LEIDOS, INC.
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Added 5 mins ago
Transmission Line Engineer
LEIDOS ENGINEERING INC
Remote, United States
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Added 6 mins ago
Software Systems Engineer - HP IQ
HP
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Added 11 mins ago
RU
Senior Full Stack Engineer (Java / Angular)
Randstad USA
Washington, DC
- $55 USD / hour
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Added 12 mins ago
DevOps Engineer I
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Senior Software Engineer
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American Fork, UT
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Added 13 mins ago
SO
ENVIRONMENTAL PROTECTION ENGINEER I (UMP)
State of Illinois
Springfield, IL
- $6,540 to $7,480 USD / month
…Non-Hazardous Unit A, is seeking to hire an Environmental Protection Engineer I. This position performs a variety of supervised functions that provide an introduction to, and training in…
Added 14 mins ago
LB
Forward Deployed Engineer
Luv Bridal
American Fork, UT
- $110,000 to $120,000 USD / year
Luv Bridal is seeking an exceptional Forward Deployed Engineer to join our technology team and help build the next generation of applications, integrations, data products, automations, and…
Added 14 mins ago
Software Engineer: Frontend
Generalist
Somerville, MA
We’re looking for a Frontend Engineer to build the interfaces that make advanced robotics intuitive and useful. Your work will help researchers understand model behavior, operators manage…
Added 14 mins ago
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Electrical Engineer
Generalist
Somerville, MA
- $200,000 to $350,000 USD / year
Robots that learn from the world need hardware that can see, sense, and act within it. As a Hardware Engineer at Generalist, you will own electrical systems from end-to-end: from napkin…
Added 14 mins ago
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Software Engineer: Product
Generalist
Somerville, MA
- $200,000 to $350,000 USD / year
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Added 14 mins ago
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Software Engineer: ML Infra
Generalist
Somerville, MA
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Added 14 mins ago
Software Engineer: Infrastructure
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Somerville, MA
…petabytes of this data. Our APIs, services, and monitoring systems depend on the infrastructure you’ll be…
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Added 14 mins ago
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Sensor Technology Engineer
Wayve
United States
- $209,700 to $238,250 USD / year
You’ll join Wayve’s Product & Delivery (P&D) organization, working within the Sensor Architecture team to help define and integrate the sensor systems behind our end-to-end autonomy stack.
Added 15 mins ago
Project Engineer I
General Dynamics Ordnance & Tactical Systems
Lincoln, NE
General Dynamics Ordnance and Tactical Systems (OTS) is a global leader in the design, engineering and production of munitions, energetics, weapons, armaments, and missile subsystems around…

RTX

Senior Software Engineer - Modeling (Onsite)

United States

The salary range for this role is 95,500 USD - 181,700 USD.

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Job details

Pay: The salary range for this role is 95,500 USD - 181,700 USD.
Posting language: English
Posted: Nov 4, 2026

Original job description

Date Posted:

2026-11-04

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: The ability to obtain and maintain a U.S. government issued security clearance is required. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance

Security Clearance Type:

DoD Clearance: Secret

Security Clearance Status:

Active and existing security clearance required after day 1

Senior Software Engineer - Modeling (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.

U.S. citizenship only (dual citizenship not permitted) is required, as access to information under this program/contract is restricted to individuals with sole U.S. citizenship. Most aspects of the job must be accomplished in a lab environment, so this position requires regular on-site presence. This position is located onsite at our Sterling, VA site.

What You Will Do:

Develop and implement software solutions using programming languages such as C/C++, C#, Python, Java, and Lua.
Design and maintain aerospace modeling and simulation systems to support complex engineering projects.
Lead system design and integration efforts, ensuring seamless functionality across hardware and software components.
Utilize tools such as Visual Studio Studio/Code, VMWare, Wireshark, Ansible, Docker/Podman, Packer, Terraform, GitLab, and Kubernetes for software development and deployment.
Collaborate with multidisciplinary teams to drive project execution, resolve technical challenges, and achieve program milestones.
Create and manage YAML-based configurations for automation and deployment processes.
Provide technical leadership and mentorship to team members, fostering a culture of collaboration and continuous improvement.
Ensure compliance with security and regulatory requirements throughout the software development lifecycle.
Support and develop automation solutions that enable our teams to build and deploy code efficiently and consistently.
Support and develop the program’s CI/CD pipeline, optimizing code integration and delivery of the simulation environment.
Use troubleshooting skills to resolve issues with software solutions, build chain or CI/CD pipeline tools.

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
Must have or be capable of obtaining a US Department of Defense (DoD) security clearance. Candidate selected will be subject to a government security investigation/reinstatement and must meet eligibility requirements
U.S. citizenship only (dual citizenship not permitted) is required, as access to information under this program/contract is restricted to individuals with sole U.S. citizenship.

Qualifications We Prefer:

Proficiency in aerospace modeling and simulation tools and techniques.
Prior work experience with system design and integration processes.
Experience with common software development and management tools such as Visual Studio/Code, GitLab, Jira, Confluence, Coverity, Nexus, and Artifactory.
Experience with software development using C/C++, C#, Python, and Lua.
Experience with server-side scripting languages such as Python, Bash, and PowerShell.
Experience with a virtual environment such as VMware, Proxmox, etc.
Experience working in Linux and Windows environments.
Experience with continuous integration for real-time testing and diagnostics within a virtualized environment.
Basic understanding of networking (TCP/IP, VLANs) and experience configuring network devices or virtual networks.
Experience in application development and integration within one or more IaaS/PaaS (Red Hat OpenShift / VMware / OpenStack).
Familiarity with cloud networking frameworks (L2, L3, and spine-leaf architecture).
Experience in microservices using RESTful APIs.
Experience with Agile Development Methodologies (e.g. Scrum, SAFe).
Familiarity with Docker/ Podman containers, or Kubernetes orchestration.
Familiarity with maintaining and deploying database technology, such as SQL and NoSQL databases like MongoDB, PostgreSQL and MonetDB.
Familiarity with JSON, XML, YAML and XSD formats, rules, and usages.
Experience in refactoring legacy systems for cloud or virtual environments.
Development IDEs such as Visual Studio, Visual Studio Code, or other related.
Certifications: Security (Security+, CISSP, or equivalent); Networking (CCNA,or equivalent).
Experience in application development and integration within one or more cloud platform services such as (Amazon Web Services, Microsoft Azure, Google Cloud, VMware Cloud).

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:

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 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
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!

Learn More & Apply Now!

*Please ensure the role type (defined below) is appropriate for your needs before applying to this role.

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.

Apply now and be part of the team that’s redefining aerospace, every day.

#MISENG

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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