Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Principal Software Engineer (Onsite)

$107.5k - $204.5k

RTX

Date Posted:

2026-05-04

Country:

United States of America

Location:

US-FL-LARGO-382SR ~ 7887 Bryan Dairy Rd ~ BLDG 600

Position Role Type:

Onsite

U.S. Citizen, U.S. Person, or Immigration Status Requirements:

Active and transferable U.S. government issued security clearance is required prior to start date.?

U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance?

Security Clearance Type:

Secret - Current

Security Clearance Status:

Active and existing security clearance required on day 1

Raytheon Company Managed by Collins Aerospace

Collins Aerospace, an RTX company, is a leader in technologically advanced and intelligent solutions for the global aerospace and defense industry. Collins Aerospace has the capabilities, comprehensive portfolio, and expertise to solve customers' toughest challenges and to meet the demands of a rapidly evolving global market.

The Protected Communication Systems (PCS) Software Engineering Department has an opportunity for a talented Principal Software Engineer to join our team. Typical job functions include participation on collaborative, cross-disciplined integrated product teams, often employing agile software development techniques.

Responsibilities span the full lifecycle of product development, from architecture and design, through integration, test, and field support. You will work and learn in an engineering organization with the highest software engineering process maturity level as recognized by the Software Engineering Institute.

This is an onsite role, based out of Largo, FL.

What You Will Do:

  • Participate on collaborative, cross-disciplined integrated product teams, often employing agile software development techniques.

  • Responsibilities span the full lifecycle of product development, from architecture and design, through integration, test, and field support.

  • You will work and learn in an engineering organization with the highest software engineering process maturity level as recognized by the Software Engineering Institute

What You Will Learn:

  • Experience in Software Engineering including working various phases of the software development lifecycle using C/C++, JAVA, JavaScript HTML5, and/or CSS

  • Experienced with full-stack development (GUI, back-end services, middleware)

  • Familiarity with developing applications using communication protocols (e.g. TCP/IP, UDP, RTP, SIP), working knowledge of Windows, Linux, VxWorks or other Real time operating systems

Qualifications You Must Have:

  • Experience with scripting languages such as Python

  • Experience with DevOps, Jenkins, automated testing, real-time operating systems (RTOS), embedded programming, processor/board architecture and design

  • Exposure to Model Driven Development, understanding of standard system engineering design artifacts such as Use Cases and SysML diagrams.

  • Applied experience in Unified Modeling Language (UML) and Object-Oriented Analysis and Design (OOA/D)

  • Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 8 years prior relevant experience or an Advanced Degree in a related field and minimum 5 years of experience.

  • Active and transferable Secret U.S. government issued security clearance is required prior to start date.

Qualifications We Prefer:

  • Familiarity with Agile lifecycle process including Scrum, Continuous Integration, and Test-Driven Development Methodologies

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

  • And more!?

Learn More & Apply Now!?

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. ?

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

?

This is an Onsite role : 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.

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 107,500 USD - 204,500 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.

Privacy Policy and Terms:

Click on this link ( to read the Policy and Terms

Raytheon Technologies is An Equal Opportunity/Affirmative Action Employer. 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, age or any other federally protected class.

Vacancy posted 20 hours ago
Similar jobs that could be interesting for youBased on the Principal Software Engineer (Onsite) in Largo, FL vacancy
  • $132.4k - $251.6k

     ...Dairy Rd. ~ BLDG 100 Position Role Type: Onsite U.S. Citizen, U.S. Person, or...  ...The Protected Communication Systems (PCS) Software (SW) Engineering Department has an opportunity for a talented Senior Principal Software Engineer to join our team. Sign... 
    Suggested
    Temporary work
    Work experience placement
    Work at office
    Remote work
    Relocation package
    Flexible hours

    RTX

    Largo, FL
    2 days ago
  • $107.5k - $204.5k

     ...Dairy Rd ~ BLDG 600 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration...  ...The Protected Communication Systems (PCS) Software Engineering Department has an opportunity for a talented Principal Software Engineer to join our team. Typical job... 
    Suggested
    Temporary work
    Work experience placement
    Work at office
    Remote work
    Relocation
    Flexible hours

    Raytheon Technologies

    Largo, FL
    1 day ago
  • $68.9k - $131.1k

     ...Software Engineer II The BMC2 Capabilities engineering organization is seeking a Software Engineer II to join our software development team located onsite in St. Petersburg, FL. Our teams develop software in a variety of languages, primarily C++. Candidates can expect... 
    Suggested
    Temporary work
    Work experience placement
    Flexible hours

    Raytheon

    Saint Petersburg, FL
    4 days ago
  •  ...Software Engineer II Collins Aerospace, an RTX company, is a leader in technologically advanced and intelligent solutions for the global...  ...Software Engineer II to join our software development team located onsite in St. Petersburg, FL. Our teams develop software in a... 
    Suggested
    Interim role

    Raytheon

    Saint Petersburg, FL
    3 days ago
  • $68.9k - $131.1k

     ...~ 7401 22nd Ave N ~ BLDG D Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements...  ...evolving global market. The BMC2 Capabilities engineering organization is seeking a Software Engineer II to join our software development team... 
    Suggested
    Temporary work
    Work experience placement
    Interim role
    Work at office
    Remote work
    Flexible hours

    RTX

    Saint Petersburg, FL
    3 days ago
  •  ...Principal Software Engineering The Principal Software Engineering position is a full-time exempt position. The individual will provide software development support to implementing software architectures, developing software design artifacts, translating system and... 
    Full time
    Local area

    Cummings Aerospace

    Largo, FL
    1 day ago
  •  ...We're seeking a skilled Full Stack Developer II or DevSecOps Engineer II to join our dynamic team in Largo, FL, building secure, scalable...  .... The ideal candidate will bring a strong foundation in software development alongside a keen understanding of secure coding practices... 
    Full time
    Contract work
    Remote work

    Epsilon Systems

    Largo, FL
    2 days ago
  •  ...Overview The Mid-Level Software Engineering position is a full-time exempt position. The individual will perform software development to include developing software code architecture and translating system and subsystem software design requirements into code. The... 
    Full time
    Local area

    Cummings Aerospace

    Largo, FL
    2 days ago
  •  ...Epsilon C5I ( ), focused on software development and systems engineering for intelligence and combat systems is seeking a Software Engineer with 0-4 years' experience for work in Largo, FL. Our engineer efforts are designed to support a real-time sensor netting system... 
    Work at office

    Epsilon Systems

    Largo, FL
    4 days ago
  •  ...Position: Python Software Developer Contract Duration: 12+ Months Location: St. Petersburg, FL (Hybrid, 3 days onsite) Duties: We are seeking a talented and passionate...  ...Transformers). Familiarity with search engines and information retrieval techniques.... 
    Contract work

    Noblesoft Solutions

    Saint Petersburg, FL
    2 days ago
  • $49k - $57k

     ...brighter way forward. Lead Operating Engineer - Healthcare What this job involves...  ...in basic computer application software such as MS Office and email Familiarity...  ...IPMP performance reviews Location: Onsite -St Petersburg Salary: $49,000 to $57... 
    Daily paid
    Apprenticeship

    Jones Lang LaSalle IP, Inc.

    Saint Petersburg, FL
    1 day ago
  • $51.2 - $61.2 per hour

     ...rewards and access to benefits programs and world-class learning resources. Accenture Flex employees work in their local metro area onsite at the project, significantly reducing and/or eliminating the demands to travel. Responsibilities: Hands on experience in... 
    Hourly pay
    Work experience placement
    Live in
    Work at office
    Local area
    Flexible hours

    Accenture

    Saint Petersburg, FL
    1 day ago
  • $47.37 - $57.37 per hour

     ...rewards and access to benefits programs and world-class learning resources. Accenture Flex employees work in their local metro area onsite at the project, significantly reducing and/or eliminating the demands to travel. Responsibilities: As an Application... 
    Hourly pay
    Live in
    Work at office
    Local area
    Immediate start
    Flexible hours

    Accenture

    Saint Petersburg, FL
    5 days ago
  • $47.85 - $57.85 per hour

     ...resources. Accenture Flex employees work in their local metro area onsite at the project, significantly reducing and/or eliminating the...  ...leveraging Epic skills. They have knowledge of the Epic EMR software, operations and workflow, and work closely with the project... 
    Hourly pay
    Work experience placement
    Live in
    Work at office
    Local area
    Flexible hours

    Accenture

    Saint Petersburg, FL
    1 day ago
  •  ...contributions make a real impact, we'd love to hear from you! Learn More About EAS Job Purpose The Senior Embedded Software Engineer is responsible for designing, developing, and maintaining high-performance, reliable, and scalable embedded software solutions... 
    Permanent employment
    Temporary work
    Local area
    Flexible hours

    EnerSys Delaware, Inc.

    Largo, FL
    1 day ago
  • $89k - $143.75k

     ...Function: R&D Product Development Job Sub Function: R&D Software/Systems Engineering Job Category: Scientific/Technology All Job...  ...Internationally, with overnight stay. Ability to work onsite at the J&J office in Santa Clara, CA. The expected base... 
    Full time
    Temporary work
    Work at office
    Local area
    Remote work
    Night shift

    Johnson & Johnson

    Saint Petersburg, FL
    2 days ago
  • Job Summary We are seeking a skilled .NET Developer to support, enhance, and extend an existing web application built using C# and ASP.NET MVC . The ideal candidate will take time to understand the current architecture and functionality before developing and implementing...

    Kaav Inc.

    Belleair, FL
    20 hours ago
  •  ...description Role: Sr. Salesforce developer Employment Type: Full-Time Location: St. Petersburg, Florida Work Model: Onsite Duration: Permanent Job Description: This role is essentially a senior-level Salesforce developer/administrator... 
    Permanent employment
    Full time
    Worldwide

    Dexian DISYS

    Pinellas Park, FL
    4 days ago
  • Role: Varicent Technical Lead Location: Clearwater, FL FTE Only Job Description Must Have Technical/Functional Skills Design, Develop and implement Varicent Solutions using Modules like Composer, Report Studio, Data Models, Workflows...

    AceStack LLC

    Belleair, FL
    20 hours ago
  •  ...the world's top brands, offering comprehensive engineering, supply chain, and manufacturing solutions. With...  ...support of our internally developed vision software platform. This role focuses on project delivery, onsite execution, imaging design, and customer-facing... 
    Work at office
    Local area
    Worldwide

    Jabil

    Saint Petersburg, FL
    20 hours ago
  •  ...customers. Epsilon C5I currently seeks to hire a Principal Firmware Engineer to support programs related to US DOD activities. As a Principal...  ...work. Desire an active TS clearance. Work is performed onsite in Largo, FL. Duties and Responsibilities:... 
    Contract work
    Currently hiring
    Immediate start
    Relocation

    Epsilon Systems

    Largo, FL
    20 hours ago
  •  ...Role : Azure DevOps Engineer Location : Clearwater, FL (Hybrid) This a 3-6 month contract to hire Visa: Candidate must be eligible...  ...excellent customer service by supporting and maintaining software and infrastructure deployments. This includes working closely with... 
    Contract work

    campus4tech

    Belleair, FL
    4 days ago
  • $132.5k - $338.3k

     ...practices leveraging a SAP solutions and embedded innovation. Lead small teams - helping them achieve transformational roadmaps - onsite with clients or within Accenture Become a trusted expert and advisor to your clients, team, and Accenture Leadership by staying... 
    Work experience placement
    Live in
    Work at office
    Local area

    Accenture

    Saint Petersburg, FL
    5 days ago
  • $50 per hour

     ...requirements Collaborating with project leads, solution engineers, and supply managers on complex or experimental projects...  .... You have a Bachelor's degree in Computer Science, Software Engineering, or related field. You have at least 3 years... 
    Remote job
    Full time
    Part time
    Freelance

    Mindrift

    Largo, FL
    12 hours ago
  • $50 per hour

     ...help shape the future of AI while ensuring technology benefits everyone. You have a Bachelor's or Master’s degree in Software Development, Computer Science, or other related fields.  You have at least 3 years of professional experience with Ruby.... 
    Remote job
    Full time
    Part time
    Freelance

    Mindrift

    Largo, FL
    12 hours ago
  • $140k - $200k

     ...- Speechify has no office. These include frontend and backend engineers, AI research scientists, and others from Amazon, Microsoft, and...  ...), and a dedication to building accessible and inclusive software. ~ Excellent software engineering fundamentals: OOP, design... 
    Work at office

    Speechify

    Saint Petersburg, FL
    1 day ago
  •  ...Position Overview We are seeking a highly motivated Software Engineer with strong automation experience and hands-on expertise in Microsoft Azure to design and deliver secure, scalable automation and integration solutions. This role will support a variety of cross-functional... 

    Bankers Financial

    Saint Petersburg, FL
    4 days ago
  •  ...Software Engineer V The Software Engineer V will be responsible for building custom software solutions of high-quality while following the coding standards and technical design. This is a Software Engineer V role, you must have at least 15 years of software development... 
    For contractors
    Work at office

    Daifuku

    Clearwater Beach, FL
    1 hour ago
  • Job Description Job Description Looking for and experienced Mastercam Programmer with 5 Axis experience. 5 plus years experience. Must be able to take a solid file and turn it into a program for 5 axis machines. Strong understanding of tool paths, Speeds and feeds,...

    St.Pete cnc

    Saint Petersburg, FL
    21 days ago
  •  ...Software Developer Lithionics Battery LLC is seeking a talented, motivated Software Developer to join our growing engineering team. In this role, you will take full ownership of the Lithionics Battery Monitor mobile application, currently available on both Google Play... 

    Winnebago Industries Inc

    Clearwater Beach, FL
    12 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Principal Software Engineer (Onsite). Be the first to apply!