Software Engineer

Cornerstone Defense LLC; Chantilly (VA); On-site; USD 120,000 - 160,000; Full time

Job summary

Cornerstone Defense LLC in Chantilly, VA, is seeking a Senior Software Engineer to develop features for critical data transmission applications. You will work with a skilled team to manage secure data flow and contribute to the evolution of systems used by the US intelligence community.

The ideal candidate must have an active TS/SCI clearance and 12+ years of software development experience, particularly in Java and AWS. Collaboration in an Agile environment is essential, along with a focus on high-quality code and mentorship to junior engineers.

Qualifications

• 12+ years of software development experience with a BS/BA or 10+ years with an MS/MA degree.
• Active TS/SCI security clearance with polygraph.
• At least 4 years of experience in Java or Python.

Responsibilities

• Design, develop, and implement new features for a data transmission application using Java and Apache NiFi.
• Collaborate with engineering teams to ensure secure data flow.
• Mentor junior engineers and foster a collaborative team environment.

Skills

Java

Python

AWS Development

Linux

Agile Development

Education

BS/BA Degree

MS/MA Degree

Tools

Apache NiFi

Git

Jenkins

Ansible

Job description

Title: Senior SoftwareEngineer

Location: Chantilly, VA

Clearance: Active TS/SCI w/ Polygraph needed to apply

Company Overview

Cornerstone Defense is the Employer of Choice within the Intelligence, Defense, and Space communities of the U.S. Government. Realizing early on that our most prized assets are our employees, we continually focus our attention on improving the overall work/life experience they have supporting the mission. Our Team is pushed every day to use their industry leading knowledge to provide end-to-end solutions to combat our nation’s toughest and most secure problems. If you are looking for a place to not only be professionally challenged, but encouraged and supported by a company that cares, don’t look any further than Cornerstone Defense.

As a Senior Software Engineer, you will play a key role in designing, developing, testing, and deploying new features for a critical data transmission application that directly supports the US intelligence community. You will collaborate with a small, highly skilled team to build a robust, secure system that serves as the interface between multiple enterprise networks. This application plays a vital role in transmitting critical intelligence data from field sources to downstream systems. Your contributions will be instrumental as the application evolves into the central hub for all NiFi channels.

Responsibilities

• Design, develop, and implement new features for a data transmission application using Java and Apache NiFi.
• Collaborate with cross-functional engineering teams to integrate the application with multiple enterprise networks, ensuring secure and efficient data flow.
• Contribute to the technical roadmap, advancing the application into the central transmission hub for NiFi channels supporting the US intelligence community.
• Provide mentorship to junior engineers and foster a collaborative, high-performance team environment.
• Ensure high-quality code by adhering to best practices for testing, continuous integration, and code reviews.

Work within Agile development frameworks to iterate and deliver software solutions that meet mission-critical objectives.

Required Qualifications

• Active TS/SCI security clearance with relevant polygraph.
• Minimum of 12 years of software development experience with a BS/BA degree or at least 10 years of experience with an MS/MA degree.
• At least 4 years of Java or Python experience.
• Demonstrated experience working in a Linux environment.
• Proven expertise in AWS development, including knowledge of S3 buckets and EC2 instances.
• Experience working within Agile development methodologies.

Desired Qualifications

• Experience with Apache NiFi, especially in data flow management and integration.
• Familiarity with DevSecOps tools such as Git, Jenkins, Puppet, Chef, Ansible, Terraform, etc.
• Experience with AWS SQS and Apache Kafka for message queuing and stream processing.