New

Mid Level Back End Developer

BigBear.ai
United States, Virginia, Ashburn
Dec 04, 2025
Overview BigBear.ai is seeking a Mid-Level Back End Developer to build, enhance, and support backend systems and APIs. This role involves independently contributing to development tasks while also partnering closely with product and DevOps teams. What you will do Develop, improve, and maintain scalable backend services using Python and Flask Design and implement RESTful APIs and integration points Work with AWS for application hosting, storage, and service orchestration Participate in code reviews, testing, and documentation Optimize application performance and resolve production issues Contribute to architectural discussions and propose technical improvements What you need to have Bachelor's Degree and 5 to 8 years of experience Proficiency in Python and experience building applications with Flask Hands-on experience with AWS (e.g., Lambda, EC2, S3, API Gateway, RDS) Solid understanding of API development and backend architecture Ability to work independently and handle tasks end-to-end What we'd like you to have Experience with databases such as PostgreSQL, MySQL, MongoDB, or DynamoDB Familiarity with CI/CD tools (e.g., Jenkins, GitLab CI, GitHub Actions) Understanding of microservices, containerization (Docker), or orchestration tools (Kubernetes) Knowledge of asynchronous frameworks or messaging systems Experience writing automated tests or using testing frameworks (pytest, unittest) About BigBear.ai BigBear.ai is a leading provider of AI-powered decision intelligence solutions for national security, supply chain management, and digital identity. Customers and partners rely on Bigbear.ai's predictive analytics capabilities in highly complex, distributed, mission-based operating environments. Headquartered in McLean, Virginia, BigBear.ai is a public company traded on the NYSE under the symbol BBAI. For more information, visit https://bigbear.ai/ and follow BigBear.ai on LinkedIn: @BigBear.ai and X: @BigBearai. BigBear.ai is an Equal opportunity employer all protected groups, including protected veterans and individuals with disabilities.