Software Developer SME (Systems Software) (Ts/Sci With Poly Required)

GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. We maximize opportunities for success by building and maintaining trusted and reliable partnerships with our customers and industry.

At GCI, we solve the hard problems. As a SME Software Developer, a typical day will include the following duties/skills:

Required Skills:

• Demonstrated experience developing modern web applications using JavaScript/TypeScript frameworks (Angular, React, or Vue).
• Demonstrated experience with Node.js web frameworks (such as Express, Koa or Hapi) and API development.
• Demonstrated experience with HTML5, CSS3, modern JavaScript (ES6+), and TypeScript.
• Demonstrated experience with CSS preprocessors (such as Sass).
• Demonstrated experience designing and implementing RESTful APIs and microservices.
• Demonstrated experience with a working knowledge of SQL databases including schema design, query optimization, and performance tuning.
• Demonstrated experience with PostgreSQL and MySQL in production environments.
• Demonstrated experience with ORMs (such as Prisma, Sequelize, or similar).
• Demonstrated experience with containerization technologies (such as Docker or Podman).
• Demonstrated experience with AWS cloud services and cloud-native development patterns.
• Demonstrated experience with and strong understanding of web application security best practices and usability principles.
• Demonstrated experience with Git version control and collaborative development workflows.
• Demonstrated experience with strong problem-solving skills including debugging, testing, and troubleshooting complex web applications.
• Demonstrated experience implementing and managing CI/CD pipelines with Jenkins.
• Demonstrated experience with Infrastructure as Code tools; Terraform and CloudFormation.
• Demonstrated experience with AWS services (to include EC2, S3, RDS, Lambda, VPC, IAM, and CloudWatch).
• Demonstrated experience with containerization such as Docker and Podman.
• Demonstrated experience with strong scripting proficiency: Bash and Python.
• Demonstrated experience with database self-hosting including installation, configuration, backup/recovery, high availability, and performance tuning using PostgreSQL and MySQL.
• Demonstrated experience with monitoring, logging, and alerting systems; Prometheus/Alertmanager and CloudWatch.
• Demonstrated experience integrating and deploying diverse software systems: AWS cloud services, open-source applications, COTS/GOTS products, and custom applications.
• Demonstrated experience with networking, security, IAM policies, and AWS architecture best practices.
• Demonstrated experience with Git-based workflows, branching strategies, and version control best practices.

Desired Skills:

• Demonstrated experience with ElasticSearch query language.
• Demonstrated experience with Infrastructure as Code concepts (Terraform or CloudFormation).
• Demonstrated experience with contributions to technical documentation, architecture diagrams, or knowledge bases.
• Demonstrated experience with monitoring and observability tools.
• Demonstrated experience with geospatial libraries and visualization (leaflet.js).
• Demonstrated experience migrating or modernizing legacy applications.
• Demonstrated experience with a working knowledge of CI/CD pipelines (Jenkins preferred) and deployment automation.
• Demonstrated experience integrating with data lake/lakehouse architectures or data-intensive applications.
• Demonstrated experience integrating customer's Enterprise services.
• Demonstrated experience with JEE applications and containers.
• Demonstrated experience with PKI.
• Demonstrated experience with excellent written and verbal communication skills with both technical and non-technical audiences.
• Demonstrated experience deploying and managing data platform components: Apache Spark, Trino, Apache Ranger, Apache Iceberg, Apache Superset, or data catalogs.
• Demonstrated experience with data lakehouse architectures and supporting infrastructure.
• Demonstrated experience with secrets management solutions such as AWS Secrets Manager or Parameter Store.
• Demonstrated experience with disaster recovery, backup strategies, and continuity planning.
• Demonstrated experience or familiarity with API gateways and modern microservices patterns.
• Demonstrated experience with cost optimization practices in AWS.
• Demonstrated experience or background deploying and supporting AI/ML workloads or model serving infrastructure.
• Demonstrated experience mentoring team members on DevOps and cloud best practices.
• Demonstrated experience with NoSQL databases such as DynamoDB or MongoDB, etc.
• Demonstrated experience with additional monitoring tools such as Grafanaor ELK stack.
• Demonstrating experience integrating customer's Enterprise services.
• Demonstrated experience with excellent written and verbal communication skills with both technical and non-technical audiences.
• A candidate must be a US Citizen and requires an active/current TS/SCI with Polygraph clearance.

Equal Opportunity Employer / Individuals with Disabilities / Protected Veterans