Principal software engineer Jobs in St Petersburg, FL

Description

The Maritime Systems Division of Leidos is seeking an experienced software engineer with experience in software architecture, design, implementation, and integration of real-time systems. The position will be responsible for the modification of existing software as well as the creation of new software. A successful candidate will have experience developing in C++ in a real-time system. Experience with Java, JavaScript, and Python is beneficial.

The candidate should work well in a collaborative environment, understand Agile development methodologies, and seek to identify and champion both technical and process innovations.

The Cooperative Engagement Capability (CEC) is a product that supports sensor integration, data and track fusion, and network communications. Tasking and responsibilities will vary depending on project objectives and may extend to programs beyond CEC.

Primary Responsibilities

Support all phases of the software development lifecycle, including requirements analysis, system design, software development, integration and test, documentation, and maintenance, for complex software system / applications.

Development of software architectures to support migration of timing-critical applications to new hardware configurations

Software implementation and unit testing to meet customer objectives

Continuous Integration / Continuous Deployment pipeline support

Mentoring of junior engineers

Basic Qualifications

US Citizenship required

Requires BS degree in Computer Science or Computer Engineering and 4+ years of prior relevant experience or Masters with 2+ years of prior relevant experience.

The ability to obtain and maintain a Secret clearance

Proven experience in all phases of Software Engineering including requirements, design, code, test and integration

Experience with C / C++ and Linux

Knowledge of or experience with UML and object-oriented design,

Real-time software development experience

Excellent verbal, written and interpersonal communication skills are required for an effective interface with all internal and external contacts.

Preferred Qualifications

The ability to obtain and maintain a TS / SCI Security Clearance

Experience in Agile development methods, including Scrum

Experience using the Atlassian toolset

Experience with Rhapsody and Model Driven Development and code generation

Experience with track fusion concepts and implementations

Experience with containerization and microservices

Experience with Java, Python, or JavaScript

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 20, 2025

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 $87,100.00 - $157,450.00

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 .

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.