Jobs in the United States

Save this search

Added 4 days ago
Sr Principal Engineer Software
CORP-Corporate Office
United States
Northrop Grumman Space Systems is seeking a Sr. Principal Software Engineer to support a program developing and fielding a new ground-based radar performing Space Domain Awareness (SDA)…
Added 4 days ago
Principal Software Engineer
NextGen Federal Systems
Aberdeen, MD
NextGen Federal Systems (NextGen) is currently seeking to fill multiple Principal Software Engineer positions with staff who have experience supporting Department of War (DoW) and…
Added 4 days ago
WI
(USA) Principal, Software Engineer
Walmart Inc.
United States
- $143,000 to $286,000 USD / year
The (USA) Principal, Software Engineer leads the design and delivery of scalable platform capabilities, driving cloud-native architecture and AI/ML integration across multiple teams. This…
Added 4 days ago
Principal Model-Based Systems Engineer
STR
Remote, United States
STR is hiring a remote Principal Model-Based Systems Engineer (MBSE) to work across a broad portfolio of DoD mission areas. The Systems Engineer should have experience leading teams,…
Added 4 days ago
Principal Production Hardware Team Lead
RTX
United States
Experience with Software Firmware languages; Python, C, Basis, Java, VHDL, Verilog.
Added 4 days ago
Principal Software Engineer
RTX
United States
Experience in programming languages such as C++, Java, Python or similar.
Added 4 days ago
O
Senior Platform Software Engineer - Oracle Health
Oracle
United States
- $87,800 to $209,500 USD / year
…Health Record (EHR) platform. We are seeking a highly skilled Principal Software Engineer to join our Clinical Applications Engineering team focused on modernizing provider workflows, inbox…
Added 4 days ago
O
Principal Platform Software Engineer - Oracle Health
Oracle
United States
- $105,900 to $234,600 USD / year
…Health Record (EHR) platform. We are seeking a highly skilled Principal Software Engineer to join our Clinical Applications Engineering team focused on modernizing provider workflows, inbox…
Added 4 days ago
Senior Staff AI Engineer, (AI Quality & Test Automation)
Illumina, Inc.
CA
12+ years in software quality engineering, with 5+ years as a lead, principal or staff level engineer setting strategy across multiple teams.
Added 4 days ago
M
Principal Applied Scientist
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
…want to reshape security and empower every user, customer, and developer with a security cloud that protects them with end to end, simplified solutions. The Microsoft Security organization…
Added 4 days ago
M
Principal Engineering Manager
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
…build and scale core product-making systems that transform developer and builder productivity and enable AI-assisted workflows across Microsoft…
Added 4 days ago
M
Principal Software Engineer
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
The One SQL Billing team is hiring a Principal Software Engineer to provide end-to-end technical leadership for billing across Azure SQL Database, SQL Server on Azure Virtual Machines, and…
Added 4 days ago
M
Principal Software Engineering Manager
Microsoft
WA · Redmond, WA · Redmond
- $142,800 to $304,200 USD / year
We are seeking an experienced Principal Software Engineering Manager to lead the Web Shared UX team through the next phase of Copilot in-app UX, expanding its capabilities and driving…
Added 4 days ago
Principal Software Engineer – Dataset and Annotation Quality - Physical AI, Autonomy & Data Platform
Irving, TX
We are seeking a highly experienced Principal Software Engineer to define and lead the system design of annotation and dataset quality systems that enable machine learning and AI for…
Added 4 days ago
Principal Security Engineer, Security Platform
Equinix LLC
United States
Strong programming skills in Python, Java, C++, or similar (polyglot experience is a plus)
Added 4 days ago
Principal Java Developer
LEIDOS, INC.
Bethesda, MD
Leidos has an exciting opportunity for an experienced Principal Java Developer to join our Intel Security Sector's Analysis Solutions Business Area in Bethesda, Maryland. Our talented team…
Added 4 days ago
Principal Engineer
OCLC, Inc.
Dublin, OH
As a Principal Software Engineer, you will be a technical leader responsible for setting the technical direction for Linked Data, graph-based knowledge representation, and related…
Added 4 days ago
Software/ Principal Software Engineer
Northrop Grumman
Huntsville, AL
Northrop Grumman Defense Systems is seeking multiple Software Engineers and Principal Software Engineers to join our Global C2 Solutions Business Unit in Huntsville, Alabama. You will help…
Added 4 days ago
Software/ Principal Software Engineer
Northrop Grumman
Huntsville, AL
Northrop Grumman Defense Systems is seeking multiple Software Engineers and Principal Software Engineers to join the Global C2 Solutions Business Unit in Huntsville, Alabama. You will help…
Added 4 days ago
Principal/Sr Principal Software Engineer
Northrop Grumman
Huntsville, AL
Northrop Grumman Defense Systems is seeking multiple Software Engineers and Principal Software Engineers to join the Global C2 Solutions Business Unit in Huntsville, Alabama. You will help…
Added 4 days ago
Principal Engineer Systems (26-465)
Northrop Grumman
Huntsville, AL
Northrop Grumman Space Systems - Missile Defense Integration offers an excellent opportunity for a Principal Engineer Systems (26-465) to join our team of skilled and diverse professionals.…
Added 4 days ago
Principal AI Engineer
PND NDCHealth Corporation
Remote, United States
The Principal AI Engineer provides the highest level of individual-contributor technical leadership for the company's AI platform, operating one level above the Lead AI Engineer role. This…
Added 4 days ago
Principal Software Development Engineer- Go
Zscaler
Santa Clara, CA
We are looking for a Principal Software Development Engineer (Service Platform & Orchestration) to join our team. This is a Hybrid (3 days in office) role, reporting to the Director,…
Added 4 days ago
Principal Consultant, Solutions Architect
Qualus
Remote, United States
Power your future with Qualus as a Solution Architect, Principal Consultant. This position is integral to Qualus’ efforts in deploying advanced utility grid management solutions,…
Added 4 days ago
Principal Solution Architect, IT Software
American Airlines
Fort Worth, TX
Programming Languages: Java, Python, C#, Javascript/Typescript

LEIDOS, INC.

Principal Java Developer

Bethesda, MD, United States

Pay Range $131,300.00 - $237,350.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary.

Apply About employer

Applications open in a new tab.

Job details

Pay: Pay Range $131,300.00 - $237,350.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary.
Posting language: English
Posted: Oct 27, 2026

Original job description

Leidos has an exciting opportunity for an experienced Principal Java Developer to join our Intel Security Sector's Analysis Solutions Business Area in Bethesda, Maryland. Our talented team is at the forefront of Security Engineering, Computer Network Operations (CNO), Mission Software, Analytical Methods and Modeling, Signals Intelligence (SIGINT), and Cryptographic Key Management, delivering innovative technical solutions that support critical national security missions.

This is an outstanding opportunity for an accomplished software development professional to apply advanced technical expertise, help shape backend architecture, mentor fellow developers, and contribute to sophisticated software solutions that directly support the Intelligence Community. Located just outside Washington, D.C., Bethesda, Maryland, offers an ideal combination of exciting career opportunities and quality of life. With vibrant neighborhoods, highly regarded schools, outstanding restaurants and entertainment, beautiful parks, and convenient access to Washington, D.C., and the surrounding National Capital Region, Bethesda is a great place to advance your career while enjoying everything the area has to offer.

At Leidos, we recognize the value of our employees and offer a comprehensive, competitive benefits package, including Paid Time Off, 11 paid holidays, a 401(k) with a 6% company match and immediate vesting, flexible schedules, discounted stock purchase plans, technical upskilling, education and training support, paid parental leave, and much more. Join Leidos and put your technical expertise and leadership to work supporting missions that make a difference in National Security! Job Summary

We are seeking a highly skilled and experienced Principal Java Developer to support the Agile development, operations, and maintenance of mission-critical systems. Working within a DevOps framework, the successful candidate will contribute to major project deliverables throughout the software development lifecycle, including scope definition and work estimation, architecture and design, coding, and unit testing.

In this role, you will apply your advanced software engineering expertise to develop and maintain high-performance applications, contribute to backend architectural decisions, mentor team members, and collaborate with cross-functional Agile teams to address complex customer requirements. This position offers an opportunity to influence technical solutions, leverage modern cloud and DevOps technologies, and deliver innovative capabilities that directly support important national security missions.

Primary Responsibilities

Backend Development: Design, develop, test, and maintain high-performance, scalable backend microservices using Java and the Spring Framework to meet customer information technology needs.
Technical Leadership and Architecture: Participate in software programming initiatives, shape backend architecture, mentor team members, and conduct code reviews to support the delivery of reliable, high-quality software solutions.
Testing and Automation: Develop and direct software system validation and testing methods using JUnit and Katalon, leveraging integrated, custom-developed software solutions to support automated deployment technologies.
Cloud-Based Development: Develop, prototype, and deploy solutions within a cloud-based platform, leveraging available platform services.
Infrastructure Analysis and Coordination: Analyze infrastructure requirements through proof-of-concept development, performance testing, and end-to-end testing, and effectively coordinate infrastructure needs driven by developed software to meet customer mission requirements.
Agile Collaboration: Support the Agile software development lifecycle following Program SAFe practices, coordinating closely with team members, Product Owners, and Scrum Masters to ensure User Story alignment and implementation in accordance with customer use cases.
DevOps and Configuration Management: Document and perform systems software development activities, including deploying build artifacts across different environments using GitFlow constructs and industry-leading DevOps tools such as GitHub, Jenkins, and scripting languages (e.g., Python and Bash).
Continuous Improvement: Apply and identify software development best practices and standard operating procedures to create innovative solutions that address customers' technical needs.

Security Clearance Requirement: All candidates for consideration MUST possess an active TS/SCI with polygraph security clearance.

Required Skills, Education, and Experience

In-depth experience with common Agile practices, service-oriented environments, and software development practices.
In-depth experience with Java and the Spring Framework, microservices architecture and design patterns, implementing RESTful APIs, and integrating with relational and NoSQL databases.
In-depth experience integrating with and delivering software solutions within DevOps toolsets and practices.
Direct experience utilizing software testing and performance tools, such as JUnit, and scripting languages, including Python and Bash, within an Agile development environment.
In-depth experience developing solutions in commercial cloud platforms (e.g., AWS, Google Cloud, Azure) and leveraging cloud data services (e.g., S3, RDS, EFS).
In-depth experience utilizing version control systems and issue/problem tracking systems.
Education and Experience: Bachelor's degree with 12 or more years of prior relevant experience, or a Master's degree with 10 or more years of relevant experience. Additional years of experience may be substituted in lieu of a degree.

Preferred Qualifications

Experience developing software that interfaces with data technologies, including Elasticsearch, Postgres, DynamoDB, Kafka, AWS SQS/SNS, AWS Lambda, and AWS S3.
Experience with SAFe development practices.

#CABARESTON #ASBA #HALO 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:

October 27, 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 only and 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.

Apply About employer

More about this job

Skills

Oracle Java
Leadership
Agile development
Software development
Estimating
Unit testing
Back-end development
Microservices
Spring Framework
Computer technology
JUnit
Agile
Collaboration
DevOps
GitHub
Jenkins
Python
Bash
Process improvement
Microservices Architecture
API development
NoSQL
AWS
Google Cloud
Microsoft Azure
Control systems
Elasticsearch
Amazon DynamoDB
Apache Kafka

Report this job