Senior Principal Software Engineer (ONSITE)

Date Posted:

2026-01-20

Country:

United States of America

Location:

US-MD-FULTON-8170 ~ 8170 Maple Lawn Blvd ~ MAPLE LAWN, Ste 190, 200 & 300

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

Solipsys, Managed by Collins Aerospace

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. 

Solipsys is a wholly owned subsidiary of Collins Aerospace/RTX and is currently seeking a

Senior Principal Software Engineer who is enthusiastic, hardworking, and proactive in writing and developing code using programming languages and related technologies such as Java, C++, Angular, GraphQL, REST, KafKa, and Typescript (among many others).  The successful candidate will work in an exciting environment, directly driving the strategy, design, architecture, and development of new software systems and products utilizing these technologies.

Solipsys is an industry leader in the development of command and control software systems and operates in a dynamic, complex, fast-paced business environment with both commercial and Government customers, including a mix of domestic and international pursuits and programs.

What You Will Do

• Drive the strategy, design, architecture, and development of critical capabilities in an active Agile environment.
• Demonstrated leadership skills with ability to coordinate the activities of multiple engineers working on a program, ensuring successful technical execution and delivery of solutions for the customer.
• Proactive leadership skills – proven ability to recognize issues early and to lead and motivate teams by making smaller, decisive corrections to avoid larger problems.
• Adept at communicating (verbal and written) with all levels within and outside the company, ability to prepare and deliver presentations/summaries which appropriately address the intended audience.
• Work in a highly collaborate team environment to design, architect and innovate software solutions. 
• Ability to travel up to 25%

Qualifications You Must Have

• Relevant work experience in software development using object oriented programming languages such as Java or C++.
• Relevant work experience with full life cycle development including software requirements, design, development, debug and test.  
• Strong computer science fundamentals: such as data structures, algorithms, distributed systems, information retrieval.
• Typically requires a degree in Science, Technology, Engineering or Mathematics (STEM) and minimum 10 years prior relevant experience or an Advanced Degree in a related field and minimum 7 years of experience

Qualifications We Prefer

• Direct hands on individual experience with GraphQL, REST, Kafka, RabbitMQ, Redis, Postgresql, Docker, Kubernetes, Angular, Typescript, HTML/CSS, among many other programming languages and related technologies.  Especially in driving the strategy, design, and architecture of software applications and systems.
• Demonstrated skills with C++ related Technologies: Boost/STL/Standard C++ Library/etc .
• Experience developing, assessing and validating complex mathematical solutions such as track filters, track correlation algorithms, and weapon engagement algorithms, for sensors and/or C2 programs. 
• Demonstrated experience developing software in a Linux environment
• Experience with Container Orchestration implementation such as Docker, Kubernetes, OpenShift
• Experience with managing cyber security processes including vulnerability assessments.
• Experience developing system models, simulations, and complex algorithmic solutions, in addition to utilizing tools such as Matlab.

What We Offer Benefits

Some of our competitive benefits package includes: 

• 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