Software Engineer - ENG05 - Cleared On-Site

  • Category: IT Engineer & Developer Jobs
  • Location: Aurora, Colorado
  • Job Type: Full Time / Part Time
  • Salary: Estimated: $ 24K to 31K
  • Published on: 2025/09/21

Qualifications
Experience developing object-oriented software using Java
Software development lifecycle experience using the Agile methods
Active and transferable U.S. government issued TS security clearance is required prior to start date
U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance
Experience with some area of satellite ground system software such as mission management, planning and scheduling, command and telemetry, satellite operations, or flight dynamics models
Interest in software leadership roles
Experience developing software using C++ and Python
Experience with microservices in an AWS environment using Docker and Kubernetes
Experience with Test Automation, DevSecOps, and CI/CD processes
Experience working with a large-scale legacy software system
Experience with tools such as Confluence, Eclipse, Jira, Jenkins, Junit, Kafka, and Spring Boot
Benefits
Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection
We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure
Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts
In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach
You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Apex team member can provide
We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package
We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package
Responsibilities
Design, develop, test, deliver, and maintain software for cutting-edge satellite ground systems
Work with talented teams of engineers, architects, and leaders in an Agile environment
A breadth of advanced software technologies and techniques including multi-tiered architectures, AWS web services, and microservice software design
Modern DevSecOps and Continuous Integration/Continuous Delivery techniques
Software lifecycle practices for large-scale defense projects
Satellite ground system technologies including command & telemetry, flight dynamics, planning and scheduling, and spacecraft operations
Job description
Job#: 204+305

Job Description:

As a Senior Software Engineer, you have the opportunity to directly impact the world around you and contribute to classified programs and technologies you are passionate about. Our small agile teams adapt to evolving customer and warfighter needs.

What You Will Do
• Design, develop, test, deliver, and maintain software for cutting-edge satellite ground systems.
• Work with talented teams of engineers, architects, and leaders in an Agile environment.

What You Will Learn
• A breadth of advanced software technologies and techniques including multi-tiered architectures, AWS web services, and microservice software design.
• Modern DevSecOps and Continuous Integration/Continuous Delivery techniques.
• Software lifecycle practices for large-scale defense projects.
• Satellite ground system technologies including command & telemetry, flight dynamics, planning and scheduling, and spacecraft operations.

Qualifications You Must Have
• Experience developing object-oriented software using Java.
• Software development lifecycle experience using the Agile methods.
• Active and transferable U.S. government issued TS security clearance is required prior to start date. U.S. citizenship is required, as only U.S. citizens are eligible for a security clearance.

Qualifications We Prefer
• Experience with some area of satellite ground system software such as mission management, planning and scheduling, command and telemetry, satellite operations, or flight dynamics models.
• Interest in software leadership roles.
• Experience developing software using C++ and Python.
• Experience with microservices in an AWS environment using Docker and Kubernetes.
• Experience with Test Automation, DevSecOps, and CI/CD processes.
• Experience working with a large-scale legacy software system.
• Experience with tools such as Confluence, Eclipse, Jira, Jenkins, Junit, Kafka, and Spring Boot

Apex Benefits Overview: Apex offers a range of supplemental benefits, including medical, dental, vision, life, disability, and other insurance plans that offer an optional layer of financial protection. We offer an ESPP (employee stock purchase program) and a 401K program which allows you to contribute typically within 30 days of starting, with a company match after 12 months of tenure. Apex also offers a HSA (Health Savings Account on the HDHP plan), a SupportLinc Employee Assistance Program (EAP) with up to 8 free counseling sessions, a corporate discount savings program and other discounts. In terms of professional development, Apex hosts an on-demand training program, provides access to certification prep and a library of technical and leadership courses/books/seminars once you have 6+ months of tenure, and certification discounts and other perks to associations that include CompTIA and IIBA. Apex has a dedicated customer service team for our Consultants that can address questions around benefits and other resources, as well as a certified Career Coach. You can access a full list of our benefits, programs, support teams and resources within our ‘Welcome Packet’ as well, which an Apex team member can provide.

EEO Employer

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, *** (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, ****** orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at [email protected] or 844-463-6178 .

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico.

Apex Systems is a world-class IT services company that serves thousands of clients across the globe. When you join Apex, you become part of a team that values innovation, collaboration, and continuous learning. We offer quality career resources, training, certifications, development opportunities, and a comprehensive benefits package. Our commitment to excellence is reflected in many awards, including ClearlyRated's Best of Staffing® in Talent Satisfaction in the United States and Great Place to Work® in the United Kingdom and Mexico.

4400 Cox Road

Suite 200

Glen Allen, Virginia 23060

Apex Systems is an equal opportunity employer. We do not discriminate or allow discrimination on the basis of race, color, religion, creed, *** (including pregnancy, childbirth, breastfeeding, or related medical conditions), age, ****** orientation, gender identity, national origin, ancestry, citizenship, genetic information, registered domestic partner status, marital status, disability, status as a crime victim, protected veteran status, political affiliation, union membership, or any other characteristic protected by law. Apex will consider qualified applicants with criminal histories in a manner consistent with the requirements of applicable law. If you have visited our website in search of information on employment opportunities or to apply for a position, and you require an accommodation in using our website for a search or application, please contact our Employee Services Department at [email protected] (Do not submit resumes or solicit consultants to this email address). UnitedHealthcare creates and publishes the Transparency in Coverage Machine-Readable Files on behalf of Apex Systems.


Company Name: Apex Systems

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