Software Developer (Senior) - TS/SCI with Polygraph Required

Catalyst Operations & Analytics; Vienna (VA); On-site; USD 110,000 - 140,000; Full time

Job summary

Catalyst Operations & Analytics is seeking a Senior Software Developer to lead the design, development, and delivery of complex full‑stack applications. You will translate customer and system requirements into technical designs, build scalable back-end services and front-end interfaces, and operate within Agile teams.

You will mentor junior and mid-level developers while ensuring code quality, performance, and security standards across the stack.

Qualifications

• Bachelor's degree plus 7–11 years of software development experience; Master's plus 5–9 years acceptable.
• Citizenship TS/SCI with Polygraph required; US persons only.

Responsibilities

• Lead design, development and delivery of full-stack applications.
• Translate requirements into technical designs, implement scalable back-end services and front-end interfaces.
• Mentor and review work of junior and mid-level developers.

Skills

Java

JavaScript

Python

Full-stack development

REST APIs

Microservices

Cloud platforms

CI/CD

Agile/Scrum

Version control

Education

Bachelor's degree

Master's degree

Tools

AWS

Docker

Kubernetes

Job description

Position Summary

Senior Software Developers lead the design, development, and delivery of complex, full-stack application solutions in support of the customer's requirements. Senior Software Developers translate customer and system requirements into technical design, build and maintain scalable back-end services and front-end interfaces, and operate within Agile development teams. Senior Software Developers apply sound engineering judgment to resolve difficult technical problems, evaluate design trade-offs across the stack, and help ensure delivered applications meet performance, security, and reliability standards. Senior Software Developers are expected to review the work of less experienced developers and provide technical mentorship.

Requirements

US Citizenships and TS/SCI with Polygraph (no exceptions)

Education/Experience Requirements

• Bachelor's degree and 7-11 years of relevant professional software development experience (Master's degree and 5-9 years also acceptable); additional relevant experience may be considered in lieu of a degree
  

Required Skills

• Strong proficiency in one or more modern programming languages (e.g., Java, JavaScript, Python)
• Demonstrated experience across the full stack, including web application UI development, back-end services, and databases
• Demonstrated experience designing and building RESTful APIs and microservices
• Experience with cloud platforms and containerization/orchestration technologies (e.g., AWS, Docker, Kubernetes)
• Experience working within Agile/Scrum development teams and ceremonies
• Experience with version control and configuration management tools
• Experience with DevOps practices and CI/CD pipelines
• Demonstrated experience translating customer and system requirements into technical design
• Strong critical thinking, technical writing, and oral communication skills, including the ability to present technical solutions to customers
• Senior positions review and guide the work of Junior and Mid-Level developers