Top Secret Software Engineer — Onsite in King of Prussia

Apex Systems; King of Prussia (PA); On-site; USD 120,000 - 170,000; Full time

Benefits offered by this job

Benefits package

Training opportunities

Job summary

Everforth Apex Systems in King of Prussia, PA is seeking Software Developers with active Top Secret clearance to join a mission-focused engineering team supporting national security programs. This onsite role emphasizes modern software development, cloud, DevOps, and Agile practices, with candidates coming from Java, C#, Python, or JavaScript/TypeScript backgrounds.

You will design, develop, test, and deploy secure, scalable software, build microservices and RESTful APIs, participate in sprint

Qualifications

• Active Top Secret clearance required at hire.
• Ability to obtain SCI and/or SAP eligibility.
• Professional software development experience in Java, C#, Python, or JavaScript/TypeScript.
• Experience with cloud platforms (AWS, Azure, GCP).
• Experience building microservices, RESTful APIs, and distributed systems.
• Experience with DevOps and CI/CD tools (Jenkins, GitLab CI/CD, Azure DevOps).
• Experience with containerization (Docker, Kubernetes).
• Experience with Git and version control; strong Agile/Scrum knowledge.
• Experience using Jira/Confluence.

Responsibilities

• Design, develop, test, and maintain secure software applications and services.
• Develop solutions using Java, C#, Python, JavaScript/TypeScript, or related technologies.
• Build and support microservices, APIs, backend services, and distributed systems.
• Collaborate with cross-functional engineering teams in Agile/Scrum environments.
• Participate in sprint planning, daily standups, backlog grooming, and retrospectives.
• Contribute to CI/CD pipelines, infrastructure automation, and deployment strategies.
• Develop and maintain cloud-native applications and services.
• Perform code reviews and promote software engineering best practices.
• Troubleshoot and resolve software defects and performance issues.
• Mentor junior engineers and provide technical guidance to team members.
• Support mission-critical initiatives while complying with security and quality standards.

Skills

Java

C#

Python

JavaScript/TypeScript

Agile/Scrum

Cloud platforms

Tools

Jenkins

GitLab CI/CD

Azure DevOps

Docker

Kubernetes

Jira

Confluence

Job description

Everforth Apex Systems in King of Prussia, PA is seeking Software Developers with active Top Secret clearance to join a mission-focused engineering team supporting national security programs. This onsite role emphasizes modern software development, cloud, DevOps, and Agile practices, with candidates coming from Java, C#, Python, or JavaScript/TypeScript backgrounds.

You will design, develop, test, and deploy secure, scalable software, build microservices and RESTful APIs, participate in sprint