Principal Site Reliability Engineer

Date Posted:

2026-02-24

Country:

United States of America

Location:

US-MD-REMOTE

Position Role Type:

Remote

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

This job requires a U.S. Person. A U.S. Person is a lawful permanent resident as defined in 8 U.S.C. 1101(a)(20) or who is a protected individual as defined by 8 U.S.C. 1324b(a)(3). U.S. citizens, U.S. nationals, U.S. permanent residents, or individuals granted refugee or asylee status in the U.S. are considered U.S. persons. For a complete definition of “U.S. Person” go here. https://www.ecfr.gov/current/title-22/chapter-I/subchapter-M/part-120/subpart-C/section-120.62

Security Clearance Type:

None/Not Required

Security Clearance Status:

Not Required

Are you motivated to work on a team that supports the backbone of the connected aviation ecosystem? Connected Aviation is a strategic unit within Collins Aerospace, and no competitor can match our innovative and dynamic product portfolios ready for the future of aviation technology. Our Messaging and Flight Ops Engineering team is responsible for developing cutting-edge services and infrastructures to ensure you, your family, your friends, and passengers around the globe arrive at their destination on time.​  

Site Reliability Engineers at Collins are responsible for service availability, performance, monitoring, incident response, and capacity planning. You should be experienced in finding problems in software and writing code to fix them. The right candidate has worked on scalable AWS environments for publicly available websites. We’re searching for someone who enjoys collaborating with a cross-functional team to develop real-world solutions and positive user experiences for every interaction.

What YOU will do:

• YOU will own one or more AWS hosted infrastructures delivering products to our commercial customers in a B2B model.
• YOU will manage, enhance, and troubleshoot our AWS environments, ensuring that as we develop new features, we are following best-in-breed industry patterns for continuous integration and deployment of new product/infrastructure releases.
• YOU will deliver using an agile pattern with our customers so you should be used to working on features for continuous test and release.
• YOU will help and influence other members of the team in using the right AWS tools to scale the features we are delivering for our customers.
• YOU will help drive the migration of a significant multi-tenant Connected Aviation web application from on-premise, into the AWS cloud.
• YOU will be part of the on-call roster supporting critical service incidents.

What YOU will learn:

• YOU will learn to innovate and create new infrastructure and systems in a supportive team who value new ideas.
• YOU will learn how to balance feature development speed and reliability while meeting well-defined service-level objectives.
• YOU will learn to work collaboratively with your colleagues across the world to deliver great systems rather than just a great individual feature.

Qualifications You Must Have:

• 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
• U.S. Person - Job requires access to ITAR or 600/500-series EAR information or hardware (directly or indirectly) and the company will not seek an export authorization for this role.
• Flexibility to be available for team meetings as early as 9:00 AM Eastern to accommodate team members in the UK and India.
• Software engineering background or a good level of coding skills in an OO language (with either .NET or Python being advantageous) in relation to managing infrastructure as code using AWS CDK.
• Experience managing AWS ECS clusters and working with systems hosted in SQL based databases like PostgreSQL, and RabbitMQ message brokers.
• Experience with Bash and/or Powershell scripting of new parts of infrastructure (or suggesting other ways to bring infrastructure to life).
• Experience with system design consulting, platform management, and capacity planning for AWS & CloudFormation experience
• Experience with Docker containerization & Git.

Qualifications We Prefer:

• Having a dual background in both systems infrastructure and software engineering.
• Experience with reporting and monitoring using industry standard tools and techniques.
• Experience with Azure Dev Ops and Pulumi.
• Experience with SCRUM (and Scaled Agile Framework as a bonus)
• A desire to automate as much as possible and proficiency with automation tools.
• Understanding of network segmentation, routing and VPNs.
• Security knowledge: can work with our cyber teams and understand their recommendations.
• Communication skills – be able to thoroughly document and articulate what you have built clearly and concisely to team members and stakeholders.

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.

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