Senior Full-Stack Engineer with Top Secret/SCI Clearance

Probity; Chantilly (VA); On-site; USD 150,000 - 230,000; Full time

Job summary

Probity is seeking a senior software engineer to lead full-stack development for scalable enterprise applications in a DoD context. You will architect backend services in Python, integrate RESTful APIs, and work with Angular on the frontend to deliver secure, high-performance solutions.

Requirements include a Top Secret/SCI with Polygraph clearance and 10+ years of experience designing enterprise software. Expect collaboration across agile teams, code reviews, and continuous improvement in a

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, Information Systems, or a related technical discipline (or equivalent combination of education and experience).
• Approximately 10+ years of professional experience designing and delivering enterprise software solutions.
• Advanced proficiency in Python for backend and application development.
• Expertise with Angular or comparable modern front-end frameworks.
• Demonstrated ability to design, develop, and integrate RESTful APIs within distributed applications.
• Hands-on knowledge of Oracle databases, including SQL development, application integration, and data access.
• Background working with relational database technologies such as PostgreSQL, SQL Server, or MySQL.
• Proven ability to develop and maintain applications within Linux/Unix environments.
• Solid understanding of software engineering practices, including version control, automated testing, peer reviews, and secure development principles.
• Familiarity with Agile methodologies and experience contributing across the full software development lifecycle.
• Strong analytical, troubleshooting, and technical problem-solving capabilities.

Responsibilities

• Lead the design and development of scalable full-stack applications from initial requirements through deployment and sustainment.
• Architect and implement backend services using Python and modern application frameworks.
• Develop and integrate RESTful APIs to support system interoperability, data exchange, and distributed application functionality.
• Design and optimize relational database solutions with a focus on performance, scalability, and maintainability.
• Partner with architects, engineers, and mission stakeholders to evaluate requirements, shape technical approaches, and deliver effective solutions.
• Diagnose complex software defects, integration challenges, and performance issues, implementing solutions that improve system reliability.
• Provide technical input through design reviews, peer code reviews, and engineering discussions while promoting sound development practices.
• Contribute to technical planning, estimation, testing, deployment, and long-term application sustainment.
• Support Agile delivery activities and help drive continuous improvement across development processes and engineering practices.
• Ensure application solutions meet established security, performance, scalability, and maintainability objectives.

Skills

Python

Angular

RESTful APIs

Oracle databases

PostgreSQL

SQL Server

MySQL

Linux/Unix

Agile

Version control

Automated testing

CI/CD

Docker

Kubernetes

Microservices

Git

Jenkins

Terraform

AWS

Elasticsearch/OpenSearch

Security best practices

Education

Bachelor's degree in Computer Science, Software Engineering, Information Systems, or related technical discipline

Tools

Git

Jenkins

Terraform

Docker

Kubernetes

AWS

Oracle SQL

Job description

Probity is seeking a senior software engineer to lead full-stack development for scalable enterprise applications in a DoD context. You will architect backend services in Python, integrate RESTful APIs, and work with Angular on the frontend to deliver secure, high-performance solutions.

Requirements include a Top Secret/SCI with Polygraph clearance and 10+ years of experience designing enterprise software. Expect collaboration across agile teams, code reviews, and continuous improvement in a