Systems Engineer I - Onsite

Prattwhitney; Saint Petersburg (FL); On-site; USD 65,000 - 109,000; Full time

Job summary

RTX, an aerospace and defense leader, seeks a System Engineer I to join the St. Petersburg, FL team onsite. The role requires an active US Secret clearance prior to start.

You will contribute across the product lifecycle, applying MBSE, requirement management, and rigorous verification to deliver trusted, high-performance systems.

The role offers opportunities for collaboration across disciplines and travel as needed to meet program milestones.

Qualifications

• Bachelor’s degree in Electrical Engineering, Computer Engineering or related STEM major obtained by start date.
• Experience with Python, C++, Linux, test automation, data analysis, MATLAB, scripting, embedded systems, signal processing, systems integration.

Responsibilities

• Lead and support requirements and algorithm development, system level designs, and system level models using MBSE.
• Author testable requirements and verification approaches.
• Perform integration and test activities in-house or at site locations.
• Utilize DOORS to manage the full life cycle of requirements, including ECPs and CNs.
• Attend internal and external CCBs.
• Collaborate with Program and Customer Leadership.
• Innovative testing and data analysis using Python, MATLAB and scripting.

Skills

Python

C++

Linux

Test automation

Data analysis

MATLAB

Scripting

Embedded systems

Signal processing

Systems integration

Education

Bachelor’s degree in Electrical Engineering, Computer Engineering or related STEM major

Tools

DOORS

Rhapsody

Cameo

MagicDraw

Job description

Date Posted: 2026-08-05 Country: United States of America Location: US-FL-ST PETERSBURG-381BD ~ 7401 22nd Ave N ~ BLDG D 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: DoD Clearance: Secret Security Clearance Status: Ability to obtain INTERIM U.S. government issued security clearance is required prior to start date

Job Description 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.

We are seeking an experienced System Engineer I to work onsite in St. Petersburg, FL. This position requires an active US Secret Security clearance.

The Systems Engineer within the Systems Excellence Department contributes through all phases of the product development lifecycle (i.e. systems and software requirements, system architecture and design, software integration and test, simulation and test, integration and test, verification and sell-off), within an interdisciplinary process that ensures the customer and warfighters needs are satisfied through every stage. This commitment to excellence can sometimes include opportunities for travel, and flexible hours/shifts to ensure programmatic milestones are met. Our team of talented engineers collaborates across disciplines from initial concepts to product sell off, integrates complex technology, debugs, and resolves interface issues, evaluates system performance, demonstrates, and sells off state-of-the-art products.

What You Will Do

• Lead and support requirementsand algorithm development, system level designs, and system level models using Model Based Systems Engineering (MBSE)
• Author testable requirements and associated verification approaches aligned with appropriate verification methods
• Perform integration and test activities in-house or at site locations
• Utilize DOORS to manage the complete life cycle of requirements, including Engineering Change Proposals (ECPs) and Change Notices (CNs)
• Attend internal and external Configuration Control Boards (CCBs)
• Collaborate with Program and Customer Leadership
• Innovative thought and implementation of automated test execution and data analysis using any combination of scripting tools, Python, Matlab, and COTS products

Qualifications

• Bachelor’s degree in Electrical Engineering, Computer Engineering or related Science, Technology, Engineering or Mathematics (STEM) major obtained by start date.
• Experience with one or more of the following: Python and C++ ,Linux, test automation, data analysis, MATLAB, scripting, embedded systems, signal processing, systems integration

QualificationsWePrefer

• Experience with Agile development, including system engineering practices and understanding of Agile roles.
• Experience in the development, design, and architecture of complex military systems.
• This includes planning, leading, and executing the development of systems and software requirements.
• Experience with requirements management databases, i.e.– DOORS for requirements management and linking requirements to test procedures
• Experience with software/systems modeling and simulations and experience with MBSE Tools, i.e.- Rhapsody, Cameo, MagicDraw
• Experience in data analysis, interpretation of the results, and identification of corrective actions and experience testing and monitoring Key Performance Indicators (KPIs) and/or Technical Performance Measures (TPMs)

What We Offer

Our values drive our actions, behaviors, and performance with a vision for a safer, more connected world.

• Trust
• Respect
• Accountability
• Collaboration
• Innovation

Relocation Eligibility

Please consider the following role type definition as you apply for 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. 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 57,200 USD - 108,800 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:

RTX is an aerospace and defense company that provides advanced systems and services for commercial, military and government customers worldwide. It comprises three industry-leading businesses – Collins Aerospace, Pratt & Whitney, and Raytheon. Its 195,000 employees enable the company to operate at the edge of known science as they imagine and deliver solutions that push the boundaries in quantum physics, electric propulsion, directed energy, hypersonics, avionics and cybersecurity. The company, formed in 2020 through the combination of Raytheon Company and the United Technologies Corporation aerospace businesses, is headquartered in Arlington, Virginia.