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Added 11 days ago
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Principal Architect
Cognizant
Lincoln, NE
- $116,100 to $175,000 USD / year
As a Principal Architect, you will make an impact by translating complex client requirements into scalable, high-performing engineering solutions and driving the modernization of enterprise…
Added 11 days ago
C
Principal Architect
Cognizant
Jefferson City, MO
- $116,100 to $175,000 USD / year
As a Principal Architect, you will make an impact by translating complex client requirements into scalable, high-performing engineering solutions and driving the modernization of enterprise…
Added 11 days ago
C
Principal Architect
Cognizant
Topeka, KS
- $116,100 to $175,000 USD / year
As a Principal Architect, you will make an impact by translating complex client requirements into scalable, high-performing engineering solutions and driving the modernization of enterprise…
Added 11 days ago
Sr Principal Software Engineer secret clearance
Northrop Grumman
Newport News
Northrop Grumman is seeking Sr Principal Software Engineers for the GCCS-J program.
Added 11 days ago
Test Conductor/ Principal Test Conductor
Northrop Grumman
San Diego
Northrop Grumman Aeronautics Systems has an opening for a Test Conductor/ Principal Test Conductor to join the team of qualified individuals. Position is located in San Diego, CA.
Added 11 days ago
Sr Principal Engineer Systems (26-465)
Northrop Grumman
Huntsville
Northrop Grumman Space Systems - Missile Defense Integration offers an excellent opportunity for a Sr Principal Engineer Systems (26-465) to join our team of skilled and diverse…
Added 11 days ago
Principal Software Engineer - Online Experience (Remote)
HOME DEPOT MANAGEMENT COMPANY, LLC
Remote, United States
The Software Engineer Principal helps shape the architecture behind the customer-facing experiences on homedepot.com, supporting four product teams in our Online Experiences portfolio:…
Added 11 days ago
C
Principal Architect
Cognizant
Saint Paul, MN
- $116,100 to $175,000 USD / year
As a Principal Architect, you will make an impact by translating complex client requirements into scalable, high-performing engineering solutions and driving the modernization of enterprise…
Added 11 days ago
C
Principal Architect
Cognizant
Concord, NH
- $116,100 to $175,000 USD / year
As a Principal Architect, you will make an impact by translating complex client requirements into scalable, high-performing engineering solutions and driving the modernization of enterprise…
Added 11 days ago
C
Principal Architect
Cognizant
Honolulu, HI
- $116,100 to $175,000 USD / year
As a Principal Architect, you will make an impact by translating complex client requirements into scalable, high-performing engineering solutions and driving the modernization of enterprise…
Added 11 days ago
C
Principal Architect
Cognizant
Columbia, SC
- $116,100 to $175,000 USD / year
As a Principal Architect, you will make an impact by translating complex client requirements into scalable, high-performing engineering solutions and driving the modernization of enterprise…
Added 11 days ago
C
Principal Architect
Cognizant
Bismarck, ND
- $116,100 to $175,000 USD / year
As a Principal Architect, you will make an impact by translating complex client requirements into scalable, high-performing engineering solutions and driving the modernization of enterprise…
Added 11 days ago
Principal Software Development Engineer (Java/Angular)
CVS Health
Remote, United States
We are seeking a highly experienced and innovative Principal (Director Level) Software Development Engineer to lead the application architecture, design, development, delivery of…
Added 11 days ago
C
Principal Architect
Cognizant
Springfield, IL
- $116,100 to $175,000 USD / year
As a Principal Architect, you will make an impact by translating complex client requirements into scalable, high-performing engineering solutions and driving the modernization of enterprise…
Added 11 days ago
Principal Staff Software Engineer - Data Lake Infrastructure
LinkedIn
Mountain View, CA
We are seeking a Principal Technical Lead to drive the technical vision and execution for OpenHouse and LinkedIn's data lake technologies. You will set architectural direction, lead complex…
Added 11 days ago
Principal Ground Integration Engineer, Top Secret Clearance
K2 Space
Los Angeles, CA
Proficiency in one or more programming languages such as Python, C#.NET, Go, Java, or similar
Added 11 days ago
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Principal Application Software Engineer
Oracle
United States
- $99,600 to $209,500 USD / year
Hands on experience writing code with modern procedural programming languages such as Java and Python.
Added 11 days ago
Sr Principal Software Engineer secret clearance
CORP-Corporate Office
United States
Northrop Grumman is seeking Sr Principal Software Engineers for the GCCS-J program.
Added 11 days ago
Test Conductor/ Principal Test Conductor
CORP-Corporate Office
United States
Northrop Grumman Aeronautics Systems has an opening for a Test Conductor/ Principal Test Conductor to join the team of qualified individuals. Position is located in San Diego, CA.
Added 11 days ago
Full Stack Software Engineer
Manulife
Boston, MA
Develop reliable, scalable, and secure backend services using Go, C#, and/or Java .
Added 11 days ago
C
Principal Architect
Cognizant
Boston, MA
- $116,100 to $175,000 USD / year
As a Principal Architect, you will make an impact by translating complex client requirements into scalable, high-performing engineering solutions and driving the modernization of enterprise…
Added 11 days ago
Principal Software Engineer - Online Experience (Remote)
The Home Depot
Remote, United States
The Software Engineer Principal helps shape the architecture behind the customer-facing experiences on homedepot.com, supporting four product teams in our Online Experiences portfolio:…
Added 11 days ago
C
Principal Architect
Cognizant
Helena, MT
- $116,100 to $175,000 USD / year
As a Principal Architect, you will make an impact by translating complex client requirements into scalable, high-performing engineering solutions and driving the modernization of enterprise…
Added 11 days ago
Principal Software Developer
Leidos
Gaithersburg, MD
Leidos is seeking a Principal Software DevOps Developer to join a high performing team leading the digital modernization of the Federal Aviation Administration’s (FAA) Terminal Flight Data…
Added 11 days ago
C
Principal Architect
Cognizant
Annapolis, MD
- $116,100 to $175,000 USD / year
As a Principal Architect, you will make an impact by translating complex client requirements into scalable, high-performing engineering solutions and driving the modernization of enterprise…

Leidos

Principal Software Developer

Gaithersburg, MD, United States

Pay Range $131,300.00 - $237,350.00

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Job details

Pay: Pay Range $131,300.00 - $237,350.00
Experience: 12+ years of experience with full lifecycle development
Posting language: English
Posted: Oct 1, 2026

Original job description

Description

Leidos is seeking a Principal Software DevOps Developer to join a high performing team leading the digital modernization of the Federal Aviation Administration’s (FAA) Terminal Flight Data Manager (TFDM) platform. TFDM is a critical FAA NextGen program that improves aircraft surface and terminal operations by enabling more efficient runway and airspace management, helping reduce congestion across the National Airspace System (NAS).

We are a team of forward-looking professionals in need of a strong candidate with these key required skills : Software Development (Java/C++/Python), DevOps / GitOps (Gitlab, ArgoCD), Containerization, OpenShift/Kubernetes, AI/AI Assisted Development, AWS/Cloud development.

Travel: 25% travel is required for this position. Travel will be to various airports across the country as the TFDM system is deployed to 89 airports. The travel will generally be between 1 to 2 weeks per trip.

**Location: This position is in our Gaithersburg, MD office 3 days a week and 2 days a week from home office.

Responsibilities :

Architect, design, develop, and implement next-generation application using software engineering best practices in the latest technologies:
DevOps and CI/CD tooling (GitLab, ArgoCD, Docker, SonarQube)
Infrastructure-as-Code (CloudFormation / Terraform, Ansible)
Containerization and Platform-as-a-Service (Docker, OpenShift/Kubernetes)
AWS/Cloud development
AI-Leveraged Development (agentic coding tools like Claude Code, multi-agent orchestration, MCP-based tool integration, RAG, context engineering, AI evals/guardrails)
Use extensive knowledge in multiple development languages, software development and system design best practices, continuous integration, continuous delivery, automation and configuration tools, testing, tool integrations, AI, and communication to modernize TFDM platform.
Provide hands-on experience developing customer integration for enterprise CI/CD architecture.
Provide architectural oversight to support the development team’s software development, integration, test automation, security testing, and deployments.
Provide architectural oversight, hands-on software expertise, and mentoring in these areas: modern application integration, service oriented architectures (SOA), security, business process management/business rules processing, CI/CD pipeline and containerization, reporting, and user experience (UX).
Investigate and repair application defects regardless of component: CI/CD pipeline, front-end, business logic, middleware or backend.
Brief executive leadership (internally or client) regarding matters of significant importance to the organization/project using written or oral skills at appropriate technical level for audience.
All other duties as assigned or directed.

Basic Qualifications :

Bachelor’s degree in computer science, software engineering, mathematics, engineering, or related technical discipline. Master’s or Doctorate degree may substitute for required experience.
12+ years of experience with full lifecycle development
7+ years of combined experience supporting GitOps/DevOps/DevSecOps
7+ years of combined experience of software development (Java, C++, or Python)
Experience with AI-Leveraged Development (agentic coding tools like Claude Code, multi-agent orchestration, MCP-based tool integration, RAG, context engineering, AI evals/guardrails)
Experience working in Agile software development environments.
Candidate must be able to obtain/maintain a Public Trust, which requires US Citizenship or Permanent Residency
Willingness to travel up to 25% as needed

Required Skills :

Proven expertise in architecting, designing, and implementing solutions adhering to best practices for operational excellence, security, reliability, performance, cost optimization, and sustainability.
Experience in communicating with and presenting solutions to Executive Management
Hands-on experience with vetting and implementing new technologies and processes
Solid experience with PaaS using Red Hat OpenShift (or other Kubernetes platforms), Docker/Podman containers, and Helm
Experience in architecting and developing DevOps/GitOps solutions at an enterprise level using CI/CD tools such as GitLab, Argo CD, Argo Workflow Argo Rollout, Argo Events, and Git
Extensive understanding and experience with designing and developing software with Java and at least one additional language such as C++, or Python
Experience applying AI-assisted software development practices to improve developer productivity, code quality, test automation, and delivery predictability using tools such as GitHub Copilot, ChatGPT, Claude, or equivalent AI development platforms.
Experience migrating legacy applications to containerized solutions on OpenShift / Kubernetes
Experience architecting and deploying cloud-native applications to a cloud service such as Amazon Web Services (AWS)
Experience identifying requirements, researching options, designing and implementing solutions at a leadership level
Experience with monitoring, scalability, application reliability tools
Excellent communication and written skills

Desired Skills:

An in-depth knowledge of Federal Aviation Administration (FAA) development environment
Preferred experience with AI spec-driven development.
Preferred experience in Secrets/Configuration Management/Scripting
Preferred experience with network engineering and security engineering
Preferred experience in Service Mesh technologies such as Istio or OpenShift Service Mesh.
Preferred experience with automated unit testing, TDD, BDD, and associated technologies (Junit, Mockito, Cucumber, Selenium, Sikuli)
Preferred experience with Kafka, data streaming, and Event Driven Architecture (EDA),
Preferred experience with configuration management tools (Ansible, CloudFormation / Terraform)
AWS Cloud certifications.

If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.

Original Posting:

September 30, 2026

For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.

Pay Range:

Pay Range $131,300.00 - $237,350.00

The Leidos pay range for this job level is a general guideline onlyand not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

About Leidos

Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com .

Pay and Benefits

Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits .

Securing Your Data

Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com .

If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission (https://reportfraud.ftc.gov/#/) .

Commitment to Non-Discrimination

All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.

REQNUMBER: R-00193483

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status. Leidos will consider qualified applicants with criminal histories for employment in accordance with relevant Laws. Leidos is an equal opportunity employer/disability/vet.

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