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Senior Application Developer

System One Holdings, LLC

Posted 5 days ago

Job Requirements

Bolling AFB, DC
Top Secret Polygraph not specified
Career Level not specified
$190,000 - $200,000

Job Description

Senior Application Developer
Washington, DC (Bolling AFB) - onsite
Security Clearance: Active TS/SCI or Top Secret (Required)

We are seeking a skilled Application Developer to design, build, and maintain scalable, high-performance applications. This role requires strong experience in cloud-native development, microservices architecture, and backend systems, with a focus on reliability, observability, and data-driven solutions.

Key Responsibilities
• Design, develop, and deploy robust backend applications and services using Python
• Build and manage containerized applications using Kubernetes
• Develop and optimize database solutions using PostgreSQL
• Implement messaging and event-driven architectures using RabbitMQ
• Monitor system performance and reliability using Grafana and related observability tools
• Collaborate with cross-functional teams to define, design, and ship new features
• Troubleshoot, debug, and enhance existing applications to improve performance and scalability
• Write clean, maintainable, and well-documented code following best practices
• Participate in code reviews, testing, and CI/CD pipeline improvements

Required Qualifications
• 4+ years of experience in application development or software engineering
• Strong proficiency in Python
• Hands-on experience with Kubernetes and container orchestration
• Solid experience with PostgreSQL (data modeling, performance tuning, querying)
• Experience implementing and managing message queues, particularly RabbitMQ
• Familiarity with monitoring and visualization tools such as Grafana
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About Us
System One is a leading provider of specialized, highly technical outsourced services, workforce solutions, staffing, and recruiting to critical infrastructure, technology, life sciences, and government sectors As an essential partner to private and public organizations of various needs and sizes, we offer our expertise to help them bring their most complex and mission-critical programs to fruition. With our highly specialized services, in-demand technical skills, and vast operational expertise, we can deliver accelerated results that benefit our clients and the job seekers who partner with us. We staff contract, contract-to-hire, and direct-hire professionals across our network to work with our clients, some of whom are industry leaders and nationally branded organizations. Our dedicated team of recruiters work tirelessly to match jobseekers with careers that align with their skills, aspirations, and goals. We understand that finding the right job can be a transformative experience,

System One Holdings, LLC Jobs


Job Category
IT - Software
Clearance Level
Top Secret