Senior Full Stack Software Developer w/poly

What Impact You'll Have Join a mission-driven program with high impact on National Security. This isn't just a development role, it's a chance to build solutions that protect what matters most! As a Senior Full Stack Software Developer/Engineer, 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, OpenSearch/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 DevOps 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 OpenSearch/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, ValKey, PostgreSQL, Elasticsearch, InfluxDB, MongoDB) Experience with Open Telemetry (OTel) or similar observability framework Familiarity with collaboration and issue tracking tools such as GitLab, Jira, and Confluence #LI-CW1 Pay Range: At GRVTY, we understand that compensation is influenced by many factors—such as geographic location, federal contract labor categories, wage rates, prior experience, skillsets, education, and certifications. We’re proud to offer a work environment that empowers our team to achieve a strong work-life balance. GRVTY provides competitive pay, comprehensive benefits, and meaningful opportunities for professional growth. Our benefits package is designed to support the well-being of our employees and their families, and includes coverage in areas such as healthcare, financial wellness, retirement planning, family assistance, continued education, and paid time off. Virginia Pay Range $145,000 — $185,000 USD Why Choose GRVTY The toughest national security challenges demand vision and ingenuity, not just resources. We deliver mission and technical e…