Software Engineer II - MANTA (Onsite)

Prattwhitney; El Segundo (CA); On-site; USD 76,000 - 144,000; Full time

Benefits offered by this job

Medical, dental, and vision insurance

Three weeks of vacation

Generous 401(k) plan with matching

Tuition reimbursement

Relocation assistance

Life insurance and disability coverage

Employee assistance program

Job summary

RTX is seeking a Software Engineer II for the MANTA program onsite in El Segundo, CA. You will design and develop real-time embedded navigation and timing software for military GPS/PNT applications, contributing across the full software life cycle.

The role requires a STEM degree with 2+ years of experience and the ability to obtain DoD security clearance. Onsite work in the US and a collaborative team environment are emphasized.

Qualifications

• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 2 years of prior relevant experience or an Advanced Degree in a related field.
• Must have or be capable of obtaining a US Department of Defense (DoD) security clearance.
• Candidate selected will be subject to a government security investigation/reinstatement and must meet eligibility requirements.

Responsibilities

• Develop software for embedded navigation and timing solutions.
• Perform requirements analysis, design, code development, integration, verification, and documentation.
• Mentor other engineers and support field demonstration efforts.
• Provide customer support and develop software tools.

Skills

C/C++

Python

Ada

Embedded software

Real-time systems

Education

STEM degree

Tools

Eclipse

Jira

Jama

Job description

Date Posted: 2026-08-10 Country: United States of America Location: US-CA-EL SEGUNDO-E04 ~ 2006 E El Segundo Blvd ~ BLDG E04 Position Role Type: Onsite U.S. Citizen, U.S. Person, or Immigration Status Requirements: The ability to obtain and maintain a U.S. government issued security clearance is required. 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: Active and existing security clearance required after day 1 Software Engineer II - MANTA (Onsite)

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. Collins Aerospace is looking for a Software Engineer II with a passion for engineering and the desire to be part of an innovative, dedicated team responsible for industry-leading Positioning, Navigation and Timing (PNT) products. Our team needs engineers interested in architecting, designing, and developing software for real-time embedded navigation and timing solutions for military ground, airborne, and maritime applications. This position offers abundant opportunity to acquire in-depth knowledge of GPS/PNT systems architecture, and to apply that knowledge in a team effort to develop our navigation products for the warfighter. Collins Aerospace continues to build on a strong history of providing navigation equipment to meet the evolving needs of commercial and military users. Our navigation solutions provide enhanced situational awareness and pinpoint accuracy for airborne and surface missions worldwide allowing users of our equipment to complete their mission and return home safe.

What You Will Do

As a part of this team, you will have responsibilities spanning all phases of the software engineering life cycle, including requirements analysis, design, code development, integration, verification, and documentation. Assignments may include tasks such as developing software tools, supporting field demonstration efforts, providing customer support, and mentoring other engineers. The successful applicant should be knowledgeable and skilled with a variety of development and test tools as well as proficient in the development of embedded hardware/software applications.

Qualifications You Must Have

Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 2 years of prior relevant experience or an Advanced Degree in a related field. Must have or be capable of obtaining a US Department of Defense (DoD) security clearance. Candidate selected will be subject to a government security investigation/reinstatement and must meet eligibility requirements.

Characteristics We Prefer

• High motivation to solve problems and continuously improve existing products
• Desire to contribute to a results-oriented product development team
• Solid understanding of software development processes for real-time embedded hardware/software applications
• Strong verbal and written technical communication skills
• A genuine desire to learn and innovate

Qualifications We Prefer

• Software requirements and architectural skills with functional decomposition
• Strong writing skills necessary to produce documentation required for security certification evaluation
• Experience with embedded hardware and real time hardware systems
• Experience with Eclipse, Jira, and Jama
• Experience with C, C++, Ada or other high-order languages in an embedded application environment and experience with hardware centric products
• Experience with Python test scripting
• Experience with the Agile methodology of development
• A working knowledge of Communication Systems, Message Handling, Digital Signal Processing, or Kalman Filter Theory

What We Offer

• 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 assistance
• And more!

The salary range for this role is 75,800 USD - 144,200 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.

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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.