Senior Backend API Engineer

Job Description

Quevera is seeking a highly skilled Senior Backend API Engineer with an active TS/SCI clearance with Polygraph to support mission‑critical programs in Linthicum, Maryland. In this role, you will support the Secure the Enterprise initiative by designing, developing, testing, deploying, and sustaining secure backend services and middleware that enable the automation of system security evaluation and authorization processes. Working within an Agile development environment, you will build and maintain Python‑based RESTful APIs, microservices, and backend applications utilizing Django and Flask frameworks.

You will develop scalable solutions that interact with MariaDB and MongoDB databases, delivering JSON‑formatted data to front‑end applications while ensuring performance, reliability, and security across enterprise systems.

As a Senior Backend API Engineer, you'll have the opportunity to work alongside some of the brightest minds in the industry, contribute to innovative solutions supporting national security missions, and help modernize critical enterprise capabilities through automation, continuous monitoring, and cloud technologies. Whether you’re looking to expand your backend development expertise, work with cutting‑edge technologies, or grow your career in a collaborative environment, Quevera provides the support and opportunities to help you succeed.

• Design, develop, test, deploy, and sustain secure Python‑based backend applications and middleware services.
• Develop and maintain RESTful APIs and microservices using Django and Flask frameworks.
• Build backend services that interact with MariaDB and MongoDB databases to retrieve, manage, and deliver application data.
• Develop scalable API endpoints that serialize and transmit data in JSON format to front‑end applications.
• Support the Secure the Enterprise initiative by developing capabilities that automate system security evaluation and authorization processes.
• Design and implement backend solutions that support continuous monitoring, data collection, and lifecycle management across enterprise systems.
• Develop, maintain, and enhance software components based on documented functional and technical requirements.
• Collaborate with software engineers, system engineers, and mission stakeholders to develop and implement technical solutions.
• Troubleshoot, debug, and resolve software defects while optimizing application performance and reliability.
• Utilize Docker to develop, package, and deploy containerized applications.
• Integrate existing software into new or modified operating environments and enterprise architectures.
• Generate and maintain technical documentation, including API specifications and system documentation.
• Participate in Agile software development activities, including sprint planning, daily standups, backlog refinement, and code reviews.
• Utilize Git, Jira, and Confluence to support collaborative software development.
• Ensure software quality through testing, code reviews, and adherence to development standards and best practices.

• Active TS/SCI with Polygraph clearance required.
• Seven (7) or more years of experience developing backend software applications.
• Demonstrated experience developing applications using Python.
• Experience developing RESTful APIs and backend services.
• Experience using Django and/or Flask frameworks.
• Experience developing and supporting microservice‑based architectures.
• Experience working with MongoDB and/or MariaDB databases.
• Experience with Docker and containerized application development.
• Experience developing secure, scalable, and high‑performing backend applications.
• Strong troubleshooting, debugging, and analytical problem‑solving skills.
• Excellent written and verbal communication skills.

• Experience with AWS or other cloud computing platforms.
• Experience serializing and exchanging data using JSON and/or XML.
• Experience using Git for version control.
• Experience working in an Agile software development environment.
• Experience using Jira and Confluence for project management and documentation.
• Experience generating technical documentation and API documentation.
• Familiarity with…