Full Stack Engineer; Senior

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Location: Chantilly, VA
Security Clearance: Active TS or higher [Required]
Job Type: Full-Time
Target Salary Range*:$160,000 - $200,000

* This represents the potential salary range for this position depending on education level, years of experience and/or certifications in addition to other position specific requirements which may impact salary

The Full Stack Engineer (Senior) serves as the principal authority for full-stack architecture, application modernization, secure development practices, and enterprise technology integration.

This role leads the design, development, and optimization of scalable web applications across frontend and backend technologies. The Full Stack Engineer (Senior) combines strategic technical leadership with hands‑on development to ensure applications are secure, high‑performing, interoperable, and aligned with enterprise architecture standards, zero-trust principles, and complex cross‑enclave requirements.

• Lead full-stack architecture and application modernization initiatives.
• Guide enterprise technology integration across application environments.
• Align applications with enterprise architecture standards, zero-trust principles, and cross-enclave requirements.

• Lead the design and development of scalable web applications across frontend and backend technologies.
• Optimize application performance, scalability, and interoperability.
• Support integration across application, data, and infrastructure components.

• Guide secure development practices across the software development lifecycle.
• Lead technical initiatives and establish development standards across teams.
• Support Dev Sec Ops  methodologies and CI/CD practices.
• Provide technical direction for complex application and integration challenges.

• Support in-house custom-developed data pipelines.
• Support Kubernetes-based application environments and Terraform-based Infrastructure as Code.
• Support Git Lab CI/CD pipelines and JFrog Artifactory.

• Support application development using Vue.js, Flask, and Elixir.
• Support frontend technologies including Phoenix Live View and DaisyUI.
• Integrate frontend and backend components within scalable application architectures.

• Support ETL workflows using Python, Cribl, and Apache NiFi.
• Support PostgreSQL database environments.
• Support Apache Kafka and Splunk integrations.
• Support custom GOTS applications.
• Perform complex data parsing and streamlined ingestion.
• Support provenance and end-to-end data lineage tracking.
• Perform schema-aligned ingestion and normalization of diverse structured and unstructured data.

Minimum 10 years of relevant experience. [Required]

• Extensive experience with modern frontend frameworks, backend technologies, APIs, and relational and non-relational databases. [Required]
• Strong knowledge of software architecture, system integration, and scalable application design. [Required]
• Experience with secure development practices, Dev Sec Ops  methodologies, and CI/CD pipelines. [Required]
• Expertise in database design, performance optimization, and application troubleshooting. [Required]
• Proven ability to lead technical initiatives and establish development standards across teams. [Required]

• Master’s degree in Computer Science, Engineering, or a related technical field.
• Experience supporting federal, defense, intelligence, or highly regulated environments.
• Knowledge of cloud-native architectures, containerization, and microservices platforms.
• Experience addressing cross-domain or cross-enclave interoperability challenges.
• Expertise in zero-trust architectures and secure enterprise application development.
• Relevant certifications in cloud technologies, software architecture, cybersecurity, or Agile development.