Jobs in the United States

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Added 6 days ago
FE
AI Engineer II
Federal Express Corporation
Memphis, TN · Coraopolis, PA · Plano, TX
- $11,410.38 USD / month
Must have independently built, trained, and iterated on multiple ML models
Added 6 days ago
Principal Architect - Application Development
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United States
…oracles, requirement-to-test coverage, automated and agentic testing, fitness functions, and policy-as-code checks that determine when AI-produced changes are ready to…
Added 6 days ago
M
Full-Stack Software Developer
modis
Dearborn, MI
- $55 to $65 USD / hour
Modis is seeking a Full-Stack Software Developer for a Contract with a client in Dearborn, MI. The ideal candidate will develop and deliver scalable full-stack applications that enable…
Added 6 days ago
Full Stack Engineer 4
Capital One
McLean, VA
Utilize programming languages like Java, Scala, Python, Go, Node.js, JavaScript and TypeScript, Open Source RDBMS and NoSQL databases, Container Orchestration services including Docker and…
Added 6 days ago
SI
Identity- Software Engineer, Principal Member Technical Staff
Salesforce, Inc.
Remote, United States
- $197,300 to $344,700 USD / year
Architect, design, implement, test, and deliver highly scalable authentication and session services on Salesforce Core (Java), with strict availability and latency requirements
Added 6 days ago
O
Lead Principal Application Software Engineer
Oracle
United States
- $104,600 to $264,100 USD / year
…direction. You will own the entire software lifecycle – development, testing, CI/CD and production operations. You must balance between product feature development and production…
Added 6 days ago
Software Development Engineer, MADS
Amazon.com Services LLC
Seattle, WA
- Build and maintain petabyte-scale data pipelines and services using Spark, EMR, Apache Iceberg and Java, developing new big data approaches to keep pace with rapid growth
Added 6 days ago
Software Development Engineer, AWS Builder Acceleration
Amazon.com Services LLC
Seattle, WA
…hands-on and close to the technology. You're passionate about developer experience and get frustrated by inefficiencies that make building software unnecessarily difficult. You understand…
Added 6 days ago
Sr. Application Security Engineer
Esri
Remote, United States
…our applications up front, perform application layer security testing, and assist developers with vulnerability remediation. We value collaboration, pragmatic security, and continuous…
Added 6 days ago
Software Engineer -ICAM Web Development | SWE3| TS/SCI w/ MD POLY Security Clearance required
Power3 Solutions
Hanover, MD
…include support for software design, development, integration, testing, and operational maintenance of highly available, enterprise level services. The web services support Attribute Based…
Added 6 days ago
Senior Java Application Developer
KēSTA I.T.
Salt Lake City, UT
KēSTA I.T. is seeking an experienced, full-time Senior Java Application Developer to design, build, and maintain Java applications and web services for an agency.
Added 6 days ago
Senior Java Developer
KēSTA I.T.
Salt Lake City, UT
Must reside in Utah
Added 6 days ago
Test Engineer II
Arcfield
Home, NY
As a Level 2 Test Engineer, you will operate with a high degree of independence on standard testing tasks, collaborate closely with developers and product managers to understand system…
Added 6 days ago
Intern - Technical
Western Governors University
Salt Lake City, UT
Assist with system testing, form development, and workflow automation using Google Workspace, Microsoft 365, or institution-specific tools.
Added 6 days ago
Sr. Software Engineer (EHR Integration Team)
Natera
Remote, United States
Backend services in Java and Spring Boot or similar, on AWS.
Added 6 days ago
Electrical Engineer - Northeast, Wisconsin
Key Technical Solutions
WI
…team and provide technical expertise in design, development, testing, troubleshooting and installation of specified equipment. The ideal candidate will have related experience in custom…
Added 6 days ago
Software Development Engineer II, Selling Partner Trust & Compliance
Amazon.com Services LLC
Seattle, WA
…applications, tools, systems, and services using: C#, C++, Java, or Perl…
Added 6 days ago
Senior System Development Engineer, Leo - Payload and Terminals
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Redmond, WA
…(RF) satellite and ground based hardware in the loop (HIL) testing…
Added 6 days ago
Security Engineer, Field Innovation, Security Search and Observability (SSO)
Amazon Development Center U.S., Inc.
Austin, TX · Arlington, VA · Santa Clara, CA
- Experience in scripting, programming, or security code reviewing in a common language, such as Python, Java, or C++
Added 6 days ago
Senior Java Application Developer
KēSTA I.T.
Salt Lake City, UT
KēSTA I.T. is seeking a Senior Java Application Developer to build and modernize Java applications and web services for an organization.
Added 6 days ago
Senior Software Engineer - Modeling (Onsite)
RTX
United States
Qualifications You Must Have: · Must have or be capable of obtaining a US Department of Defense (DoD) security clearance
Added 6 days ago
Senior Software Engineer - Agile Product Owner (Onsite)
RTX
United States
Qualifications You Must Have: · Must have or be capable of obtaining a US Department of Defense (DoD) security clearance
Added 6 days ago
Senior Software Engineer
Advantest
San Jose, CA · Austin, TX
Proficiency in modern software development languages such as Python, Java, C++, Rust, or JavaScript/TypeScript.
Added 6 days ago
Software Engineer Senior
GD Information Technology, Inc.
United States
Software Engineering, Software Testing, Web Application DevelopmentCertifications:
Added 6 days ago
Senior Software Engineer (REST API & Springboot )
U.S. Bank National Association
Irving, TX · Atlanta, GA · Hopkins, MN · Minneapolis, MN · San Francisco, CA
Bank location three (3) or more days per week

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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Jobs in the United States