Software Developer - ONI with Security Clearance

TENAX Technologies, LLC; Washington (District of Columbia); On-site; USD 120,000 - 155,000; Full time

Job summary

TENAX Technologies in Washington, DC seeks a Software Developer to support mission-critical DoD/IC systems. You will build secure, scalable applications in Java and Python across on-prem, hybrid, and AWS cloud environments.

Responsibilities include designing and implementing RESTful services, web UIs, and database-driven applications, while applying DevSecOps practices and RMF/cybersecurity controls. A TS/SCI eligible clearance and IAT certification are required for this role.

Qualifications

• U.S. citizenship required and Top Secret/TS or TS/SCI eligibility.
• Bachelor's degree in a related technical field.
• Minimum 3 years of software development experience.
• Experience with Java and Python in enterprise applications.
• RESTful APIs, web services, and database-driven apps experience.
• Familiar with source control, automated testing, and best practices.
• Experience in Linux and/or Windows environments and Agile DevSecOps.

Responsibilities

• Design, develop, test, and maintain enterprise software applications using Java and Python.
• Develop secure back-end services, APIs, and microservices with Java, Spring Boot, REST.
• Build modern web-based user interfaces and front-end apps.
• Design, develop, and optimize databases (Oracle, PostgreSQL, MySQL).
• Integrate apps with enterprise systems, cloud services, and data sources.
• Support deployments through DevSecOps pipelines, including security scanning and testing.
• Implement secure coding practices to meet RMF/CIS controls and DoD requirements.
• Troubleshoot performance issues across dev, test, production environments.
• Support system modernization and cloud migration projects.
• Participate in Agile activities: planning, reviews, releases, and documentation.

Skills

Java

Python

REST APIs

Spring Boot

DevSecOps

Agile

Linux/Windows

Security best practices

Education

Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related technical field

Tools

Spring Boot

Hibernate/JPA

PostgreSQL/MySQL/Oracle

Git

AWS

Job description

Join TENAX Technologies TENAX Technologies is seeking a Software Developer to support mission-critical applications and enterprise systems for our Navy customer in Washington, DC. This role offers the opportunity to work on cutting-edge technologies supporting critical Department of Defense (DoD) and Intelligence Community (IC) missions. The ideal candidate will be a highly motivated software developer with experience building secure, scalable applications in on-premises, hybrid, and AWS cloud environments. If you are passionate about software development, cybersecurity, and supporting national security missions, we want to hear from you.

What You'll Do

• Design, develop, test, and maintain enterprise software applications using Java and Python.
• Develop secure back-end services, APIs, and microservices utilizing Java, Spring Boot, and RESTful architectures.
• Build and enhance modern web-based user interfaces and front-end applications.
• Design, develop, and optimize databases using Oracle, PostgreSQL, MySQL, and SQL technologies.
• Integrate applications with enterprise systems, cloud services, and mission-critical data sources.
• Support software deployments through DevSecOps pipelines, including automated testing, security scanning, and release management.
• Implement secure coding practices and support compliance with DoD cybersecurity requirements, RMF controls, and vulnerability remediation efforts.
• Troubleshoot and resolve software, database, and system performance issues across development, test, and production environments.
• Support system modernization initiatives, technology refresh efforts, and cloud migration projects.
• Participate in Agile software development activities, including sprint planning, code reviews, and release management.
• Create and maintain technical documentation, architecture diagrams, API documentation, and deployment procedures.

Required Qualifications

• U.S. Citizenship required.
• Active Top Secret (TS) security clearance with eligibility for TS/SCI access.
• Must possess and maintain a current DoD 8570/8140 Information Assurance Technical (IAT) Level II or Level III certification, including approved certifications such as Security+ CE, CySA+, SSCP, CND, GSEC, CASP+ (SecurityX), CISSP, GCED, GCIH, or equivalent.
• Bachelor's degree in Computer Science, Software Engineering, Information Technology, or a related technical field.
• Minimum of 3 years of software development experience.
• Experience developing enterprise applications using Java and Python.
• Experience developing RESTful APIs, web services, and database-driven applications.
• Experience with source control systems, automated testing, and modern software development best practices.
• Experience supporting Linux and/or Windows environments.
• Familiarity with Agile development methodologies and DevSecOps practices.

Preferred Qualifications

• 5+ years of software development experience.
• Experience with Spring Boot, Hibernate/JPA, microservices, and cloud-native application development.
• Experience supporting applications hosted in AWS cloud environments.
• Experience supporting DoD, U.S. Navy, Intelligence Community, or Federal Government programs.
• Knowledge of Risk Management Framework (RMF), DISA STIGs, secure software development practices, and cybersecurity compliance requirements.
• Experience in integrating applications with enterprise platforms and mission data sources.

Why Join TENAX?

At TENAX Technologies, you will have the opportunity to support mission-critical national security programs while working with modern technologies including cloud platforms, DevSecOps pipelines, microservices, and enterprise-scale systems. You will collaborate with experienced professionals in a dynamic and rewarding environment that encourages innovation, teamwork, and technical excellence. We are committed to investing in our employees through professional development, technical training, and opportunities for career advancement. TENAX Technologies is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, national origin, disability, protected veteran status, or any other characteristic protected by law.