CATHEXIS

System Administrator

• Perform administration functions at the Census Bureau
• Responsible for the installation, configuration, and maintenance of products including Subversion, Jenkins, Jira, Confluence, Tomcat, etc. on Linux and Windows servers
• Design and implement archival and maintenance plans for application platforms to improve performance
• Troubleshoot issues related to access, performance, deployments and automation builds

Principal Service Desk – System Administrator

Engineer

• Design, build, and test full stack web features from concept to deployment.
• Implement responsive, accessible UI using modern front end frameworks (e.g., React, Next.js, Angular, or Vue) with HTML5, CSS3, and JavaScript / TypeScript.
• Develop secure back end services and APIs (REST/GraphQL) using Node.js/Express, Python/FastAPI, or C#/.NET.
• Model and integrate data with relational and NoSQL databases (e.g., PostgreSQL, MySQL, Microsoft SQL Server, MongoDB) and write performant queries, stored procedures, etc.
• Implement authentication/authorization (OAuth 2.0/OpenID Connect, JWT) and follow web security best practices (OWASP Top 10, CORS, CSRF).
• Build and manage microservices and containerized applications with Docker; contribute to Kubernetes deployments when required.
• Deploy and operate applications on AWS and Azure using IaC (Terraform, Bicep, or CloudFormation), serverless (AWS Lambda, Azure Functions), and PaaS (Azure App Service, AWS ECS/Fargate).
• Set up CI/CD pipelines (GitHub Actions, Azure DevOps, or AWS CodePipeline) for automated testing, build, and release.
• Configure caching, messaging, and CDN layers (e.g., Redis, SQS/SNS or Azure Service Bus, CloudFront/Azure CDN) to improve performance and resilience.
• Instrument applications with logging and monitoring (CloudWatch, Azure Monitor, Application Insights, Grafana) and troubleshoot issues across the stack.
• Collaborate in Agile sprints: refine user stories, estimate, participate in code reviews, and demo features to stakeholders.
• Maintain technical documentation and contribute to knowledge transfer.
• Use VS Code / Visual Studio as the primary development environment and manage work via GitHub repositories and workflows.

Junior Research and Development Engineer, Software

Database Administrator

• Ensure databases are running efficiently and are optimized for the best performance, including maintenance, performance tuning, and capacity planning
• Implement and maintain stringent security measures to protect sensitive medical data
• Ensure compliance with regulations such as HIPAA and government data handling/privacy standards
• Develop and maintain backup and disaster recovery plans to prevent data loss and ensure availability
• Monitor data quality and integrity; implement controls and validation processes for accuracy and reliability
• Work closely with IT teams, medical professionals, and department management to support data needs and resolve database-related issues
• Provide support for reporting needs, including designing and executing complex queries and developing procedures to extract data for analysis and reporting purposes