Software Engineer I (Onsite)

Company: RTX
Location: El Segundo
Posted on: April 1, 2026

Job Description:

Date Posted: 2026-03-29 Country: United States of America Location: US-CA-EL SEGUNDO-E01 ~ 2000 E El Segundo Blvd ~ BLDG E01 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 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. As an engineer on our team, you will be involved in the design, development, integration and verification of our unmanned aircraft software application team. We work in an embedded real time operating system environment, coded in C/C++, so proficiency in these areas will help the candidate come up to speed quickly. As an engineer on our team, you will be involved in the design, development, integration and verification of our unmanned aircraft software application team. We work in an embedded real time operating system environment, coded in C/C++, so proficiency in these areas will help the candidate come up to speed quickly. Candidates are also required to have excellent communication skills to communicate technical issues and status in both written and oral form to customers. The candidate must be adaptable to change, determined to accomplish tasks based on program schedule, collaborate with teammates in order to make the best decisions, enjoy learning new technologies, be self-motivated and contribute to a positive work environment. This position will work onsite located at one of our following locations: Ft Wayne, IN, McKinney, TX, or El Segundo, CA. What You Will Do: Support the design, demonstrate, develop, and maintain embedded software for unmanned aircraft products. Integrate software into complex aircraft systems Develop and conduct complex tests and debug systems that contain logical and mathematical solutions. What You Will Learn: Hands-on-Experience with a variety of software engineering artifacts Collaborate with a dynamic group of engineers from a variety of disciplines Real world engineering experience will complement your education Qualifications You Must Have: Requires a Bachelor’s degree and 12 months or less of relevant professional work experience (excluding internships). 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 ? Qualifications We Prefer: Experience developing software in a Linux build environment Experience developing software for real-time operating systems Experience developing software using the C or C++ languages Experience working in a full software development life cycle Experience developing and deploying software using containers 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. ? And more! Learn More and Apply Now! Collins Aerospace, a Raytheon Technologies 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. 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. WE ARE REDEFINING AEROSPACE. Position is eligible for relocation. 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. Regardless of your role type, collaboration and innovation are critical to our business and all employees will have access to digital tools so they can work with colleagues around the world – and access to Collins sites when their work requires in-person meetings. 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 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: Click on this link to read the Policy and Terms

Keywords: RTX, Buena Park , Software Engineer I (Onsite), IT / Software / Systems , El Segundo, California