Full Stack Engineer

i3 Consulting; Chantilly (VA); On-site; USD 140,000 - 190,000; Full time

Job summary

i3 Consulting in Chantilly, VA seeks a Full Stack Engineer SME to lead design, development, and modernization of scalable web apps across frontend and backend, ensuring secure, high-performance solutions aligned with enterprise standards.

The role emphasizes zero-trust security, cross-enclave integration, and hands-on coding, with a focus on DevSecOps, CI/CD, and technologies like Vue.js, Flask, Elixir, PostgreSQL, Kubernetes, and AWS.

Qualifications

• Extensive experience with modern frontend frameworks, backend technologies, APIs, and databases.
• Strong knowledge of software architecture, system integration, and scalable design.
• Experience with secure development practices, DevSecOps, and CI/CD pipelines.
• Expertise in database design, performance optimization, and troubleshooting.
• Ability to lead technical initiatives and set development standards.

Responsibilities

• Lead design, development, and optimization of scalable web applications across frontend and backend.
• Ensure security, interoperability, and alignment with enterprise architecture and zero-trust principles.

Skills

Full stack experience

Frontend frameworks

Backend development

APIs & databases

DevSecOps & CI/CD

System architecture

Performance tuning

Technical leadership

Education

Bachelor's degree

Tools

Kubernetes

Terraform

GitLab CI/CD

JFrog Artifactory

AWS

PostgreSQL

Splunk

Cribl

Apache Nifi

Apache Kafka

Job description

Full Stack Engineer

Top Secret required

Location is Chantilly, VA on site

Bachelors required

Minimum 10 years experience

We are seeking a Full Stack Engineer - Subject Matter Expert (SME). This individual will serve as the principal authority for full-stack architecture, application modernization, secure development practices, and enterprise technology integration. The Full Stack Engineer SME will lead the design, development, and optimization of scalable web applications across both frontend and backend technologies. The role combines strategic technical leadership with hands-on development, ensuring applications are secure, high-performing, interoperable, and aligned with enterprise architecture standards, zero-trust principles, and complex cross-enclave requirements.

Skills required

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

Unique Skills / Technical Requirements

• In-house custom developed data pipeline
• Kubernetes
• Terraform
• GitLab CI/CD
• JFrog Artifactory
• AWS Cloud Services
• UI
  • Vue.js
  • Flask
  • Elixir
  • Phoenix LiveView
  • Daisy UI
• ETL
  • Python
  • Cribl
  • Apache Nifi
  • Database (Postgres)
  • Apache Kafka
  • Splunk
  • Custom GOTS application(s)
  • Complex data parsing and streamlined ingestion
  • Provenance and end-to-end data lineage tracking
  • Schema-aligned ingestion and normalization of diverse structured and unstructured data

Preferred skills

• 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.