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Software Engineer Security Clearance

Job in Sterling, Loudoun County, Virginia, 20163, USA
Listing for: Mount Indie, LLC
Full Time position
Listed on 2026-07-01
Job specializations:
  • Software Development
    Front End Developer
Job Description & How to Apply Below
Position: Software Engineer with Security Clearance
Mount Indie is seeking a cleared, highly collaborative Front End/ UI Developer with strong Middleware experience to join our mission-driven team onsite. You will work closely with cross-functional developers to build and adapt interface in response to changing mission requirements. Developers with a keen interest in getting software rapidly into the hands of the warfighter. What You'll Do:

Key Responsibilities
• Support development on intuitive front-end user interfaces
• Build and maintain efficient middleware message layers to bridge front-end components with back-end architectures.
• Integrate complex data streams and handle message serialization/deserialization.
• Build and support an API interface to allow other developer teams and user code to requirements to integrate backend data streams into a front end.

Required Qualifications:

* Active Top Secret (TS) clearance (TS/SCI preferred)
* Bachelor's degree in Computer Science or a related technical field.
* At least 8 years of experience in Front-end development (10+ years preferred)
* Strong development experience in JavaScript and modern front-end frameworks (React, Angular, or Vue)
* Hands-on experience writing middleware layers using Protobuf.
* Experience connecting to and managing data streams such as Apache Kafka, RabbitMQ, ActiveMQ, or ZeroMQ.
* Experience developing, supporting and maintaining API's.
* Experience developing geospatial UI designs, mapping interfaces, or working with GIS data formats.
* Proficiency with Git Lab or similar version control platforms Nice to have:
* Experience supporting U.S. Army, NGA, DoD, or mission-focused programs
* Experience with AMQP/MQTT, Data Distribution Services, gRPC, Flat Buffers, Avro,
* Experience with Cesium JS, Open Layers, Leaflet, Mapbox, WebGL
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