Full Stack Software Engineer – Senior Job Washington area,District of Columbia USA,Software Development

Career Opportunities with Castalia Systems

A great place to work.

Current job opportunities are posted here as they become available.

Clearance:

TS/SCI willingness to take a polygraph exam

Must be a U.S. Citizen

Job Summary

Systems is seeking a Senior Full Stack Software Engineer with the skills needed to develop, integrate, test, and maintain software capabilities from requirements through production delivery. You’ll work across the technology stack and collaborate with other engineers, architects, product owners, and mission stakeholders to translate requirements into reliable and maintainable software solutions.

Roles and Responsibilities A qualified candidate will perform the following duties and responsibilities, but are not limited to:

Use modern development tools, frameworks, and cloud technologies to solve challenging technical and mission problems.
Develop backend services, APIs, data integrations, and user-facing capabilities while working within established application architectures and engineering standards.
Participate in technical design discussions, troubleshoot application issues, conduct code reviews, and contribute to improvements in software quality and maintainability.
Work alongside senior engineers to evaluate technical approaches, learn new tools and technologies, and continuously improve the team's development and delivery practices.

Required Qualifications

Bachelor's degree in Computer Science, Engineering, Information Technology, or a related technical field, or additional software engineering experience in lieu of a degree.
8+ years of experience in software engineering, including developing, testing, integrating, or maintaining software applications
5+ years of experience developing applications using Python, Java, or another object-oriented programming language
4+ years of experience developing web applications using frontend technologies or frameworks, such as React or Angular
Experience developing or integrating backend services and RESTful APIs
Experience developing applications using relational databases, such as PostgreSQL, and working with SQL
Experience working with automated build, test, or CI/CD processes
Experience working within Agile software development environments using methodologies such as Scrum or Kanban
Experience using software development and task management tools, such as Jira
TS/SCI clearance with a polygraph

Preferred Qualifications

Experience developing production applications with Python
Experience with microservices, distributed systems, or event-driven architectures
Experience with Infrastructure as Code technologies such as Cloud Formation
Experience building or maintaining CI/CD pipelines (Gitlab, Github Actions, Jenkins)
Experience with Kubernetes or other container orchestration technologies
Experience with automated unit, integration, or end-to-end testing
Experience with application authentication, authorization, logging, monitoring, or observability
Experience working in Dev Sec Ops software delivery environments
Experience leading projects and mentoring, teaching junior staff members

Physical Requirements /Work Environment

Normal office environment.

Travel

As required

Company Description

Castalia Systems is a proven business partner providing mission critical solutions to the Federal Government. We provide cutting edge solutions from Securing and Managing Data to Systems Engineering and Development. Castalia Systems is a pioneer in Artificial Intelligence Design and Application.

With our vast knowledge of our customers’ needs and relevant technology, our team is able to bring successful solutions to every mission. We are one-upping our competitors by providing premium IT solutions and platforms with cutting-edge technology so it’s so evident when you…