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Senior Full Stack Software Developer​/Engineer w​/Poly Security Clearance

Job in Sterling, Loudoun County, Virginia, 20163, USA
Listing for: GRVTY
Full Time position
Listed on 2026-07-17
Job specializations:
  • Software Development
    Full Stack Developer, Software Engineer, Backend Developer, DevOps
Job Description & How to Apply Below
Position: Senior Full Stack Software Developer/Engineer w/Poly with Security Clearance
What Impact You'll Have As a Senior Full Stack Soft w are Developer/Enginee r, you will perform as an individual contributor and team member focused on developing and refining a command-and-control platform used by a wide variety of stakeholders. Soliciting and incorporating user feedback is paramount in developing a superior product. Ideal candidates will have full stack development experience, with demonstrated skills developing front-end applications and user interfaces, as well as employing back-end technologies and programming languages.

What You'll be Owning
* Lead design and development of applications, tools, and user interfaces supporting advanced data processing and command-and-control workflows
* Engage proactively with mission partners to understand operational use cases and convert high-level requirements into actionable features, work products, and technical specifications
* Collaborate with internal and external engineering teams to define interface control documents (ICDs), subsystem behaviors, and integration patterns
* Develop CONOPs, user guides, release notes, and technical artifacts supporting software delivery and stakeholder adoption
* Architect and optimize large scale data analysis pipelines using Spark, Open Search/Elasticsearch, and distributed data technologies
* Lead merge reviews, enforce coding standards, and guide peers in performance optimization and maintainability improvements
* Build and refine back end services and APIs that support high-performance data workflows
* Oversee testing strategies, diagnose complex issues, and ensure delivery of stable, high-reliability software
* Mentor junior developers, foster a high performing engineering culture, and support professional growth across the team
* Influence long-term technical direction, evaluate emerging technologies, and guide architectural decisions What You Must Have
* Active TS/SCI with polygraph
* 10+ years of software engineering experience in fast-paced, collaborative environments
* Strong proficiency in Python and Java
* Experience building React front end applications and Django back end services
* Experience with Dev Ops workflows, CI/CD pipelines, and automated deployment
* Full stack development experience across front end and back end systems
* Recent experience building applications, analysis tools, or mission-focused software
* Bachelor's degree in Computer Science or related field What Would be Nice to Have
* Knowledge of Open Search/Elasticsearch indexing, search, and analytics
* Demonstrated ability to reverse engineer applications and understand legacy systems
* Experience with messaging/task queues (Kafka, gRPC, Celery)
* Proficiency with containerization (Docker, Kubernetes)
* Experience with databases or data stores (MariaDB, MySQL, Val Key, PostgreSQL, Elasticsearch, InfluxDB, MongoDB)
* Experience with Open Telemetry (OTel) or similar observability framework
* Familiarity with collaboration and issue tracking tools such as Git Lab, Jira, and Confluence #LI-PS1
Position Requirements
10+ Years work experience
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