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Senior Back-End Software Application Developer

LMI

$109,000 - $189,000
Aug 25, 2025
Washington, DC, USA • Vienna, VA, USA
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LMI is seeking a Senior Back-End Developer to translate design concepts into responsive, high-performance software applications for government agencies, accelerating impact with innovation and speed.

Requirements

  • proficiency in modern object-oriented programming languages such as Python, Java, C++, Node.js, or Ruby.
  • Experience with both SQL (e.g., MySQL, PostgreSQL) and NoSQL (e.g., MongoDB) databases.
  • Familiarity with back-end frameworks liks Django, Flask, Spring, or Express.js.
  • Experience with cloud platforms like AWS, Azure, or Google Cloud.
  • Experience with efficient data storage and retrieval.
  • Strong, demonstrable understanding of modern design and coding principles and practices.
  • Familiarity with version control systems (e.g., Git).

Responsibilities

  • Develop and maintain server-side logic by writing code that powers the application's functionality, handles user requests, and manages data.
  • Create APIs that allow different parts of the application, or different applications, to communicate with each other.
  • Design database schemas, write queries, and ensure data integrity and security.
  • Ensure the application can handle a growing number of users and data efficiently.
  • Work closely with front-end developers to integrate the back-end functionality with the user interface.
  • Implemen security measures to protect sensitive data and prevent unauthorized access.
  • Participate in code reviews, debug developed code, and stay current with software development trends.

Other

  • B.S. in Computer Science, Computer Engineering, or equivalent.
  • 7 - 12 years experience as a Back-End Developer with a portfolio
  • Strong problem-solving skills.
  • Excellent communication and teamwork abilities.
  • Active TS/SCI.