Assistant System Administrator Jobs in Puerto Rico

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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. Join us and help shape the future of aerospace and defense.

The following position is to join our RTX Enterprise Services team in Santa Isabel, Puerto Rico:

The Senior SharePoint Developer serves as a subject matter expert for our Microsoft 365, SharePoint Online, and Entra ID environment, with shared responsibilities of our custom tools, SharePoint development, and PowerShell automation. This role provides advanced technical leadership within the SharePoint Online Engineering team and contributes to day-to-day operational success, architectural planning, platform improvements, completion of SharePoint projects, and the development of short-term operational plans.The ideal candidate has advance to expert-level experience with Microsoft 365 and SharePoint Online development, operates with minimal oversight, and is capable of coaching other professionals while influencing platform practices and technical decisions.

What You Will Do

• Serve as the subject-matter expert for SharePoint Online, Microsoft 365, and Entra ID within the team.
• Act as SharePoint Online administrator: permissions, site architecture, content types, site settings, and tenant configuration.
• Assist in the development and enhancement of custom compliance tools, including ongoing development, deployment, maintenance, and optimization.
• Development and support of the site provisioning solution, ensuring reliability and alignment with organizational practices.
• Build, maintain, and improve PowerShell scripts for automation, reporting, lifecycle management, and governance activities.
• Investigate and resolve complex, often undefined issues spanning multiple systems or business areas.
• Apply prior experience and structured analysis to develop solutions to difficult problems with moderate cross-departmental impact.
• Contribute to operational planning, including input into roadmaps, standards, and process improvements.
• Manage moderately sized development projects or process improvements with measurable impact on team objectives.
• Coach, review, and provide guidance to lower-level developers and administrators.
• Communicate and collaborate with partners inside and outside the discipline, including vendors, business stakeholders, and IT groups.
• This position will reference written work instructions for guidance with daily job activities. Work instructions are available in English only.

Qualifications You Must Have

• A University Degree or equivalent experience and minimum 5 years prior relevant experience, or an Advanced Degree in a related field and minimum 3 years experience.
• Minimum 3 years of relevant experience developing and architecting solutions in SharePoint Online and Microsoft 365.
• Advanced-to-expert knowledge of one or more of the following:
  • SharePoint Online architecture and development
  • Microsoft Graph / REST APIs / CSOM
  • C# (with modern authentication and cloud integration)
  • PowerShell automation in enterprise environments
  • Entra ID concepts including app registrations and permissions
• Experience in GCC High environment or similar controlled landscape
• Experience leading moderately complex technical projects with minimal oversight.

Qualifications We Prefer

• Proven ability to investigate and resolve complex issues requiring detailed research and cross-functional collaboration.
• Strong communication skills and the ability to influence technical decisions and best practices.
• Experience performing at a level comparable to a Microsoft MVP (formal MVP status not required).
• Experience with SPFx, PnP, Azure Functions, or Logic Apps.
• Background in governance, compliance tooling, or large-scale M365 operations.
• Ability to mentor others and contribute to continuous improvement initiatives.
• Skills with Power Platform

What We Offer

Whether you’re just starting out on your career journey or are an experienced professional, we offer a robust total rewards package with compensation; healthcare, wellness, retirement and work/life benefits; career development and recognition programs. Some of the benefits we offer include parental (including paternal) leave, flexible work schedules, achievement awards, educational assistance and child/adult backup care.

Learn More & Apply Now!
Location: This position is remote. However, the successful candidate must be currently living in Puerto Rico.

Please consider the following role type definition as you apply for this role:
Remote: This position is currently designated as remote. Employees who are working in Remote roles will work primarily offsite (from home). The employee may be expected to travel to the Santa Isabel site location as needed.

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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