Senior Developer / Systems Engineer US CITIZENS ONLY

Redan LLC is seeking a highly experienced Senior Developer / Systems Engineer to join a growing team delivering business and technology modernization for a federal financial-regulatory client. In this role, you will design, build, test, and deploy software solutions and automations that turn mission requirements into secure, maintainable, high-value capabilities.

Responsibilities:

• Write, test, debug, and deploy code for software applications and systems that solve business needs
• Design, build, and automate business workflows and create and maintain dashboards and reports
• Develop analytics and automated dataflows in AWS SageMaker, using Python for scripting, data preparation, and model execution
• Build automations in Microsoft Power Automate, including approved AI-assisted text summarization, extraction, and classification
• Build applications on the Microsoft Power Platform - Power Apps (Canvas, Model-Driven, Power Pages) and Power Apps Code Apps (pro-code React/TypeScript deployed on the governed Power Platform with Microsoft Entra ID and DLP)
• Develop dashboards, metrics, and data models in Power BI using SQL and DAX
• Design, optimize, and execute data transformations; troubleshoot ETL pipelines and connectors; validate data accuracy across sources, schemas, and downstream applications
• Apply Test-Driven Development and automated testing (Selenium/JUnit, Playwright for modern web) integrated into CI/CD; support functional, integration, and end-to-end testing of AI and non-AI systems; document model assumptions, outputs, model cards, and validation evidence
• Ensure compliance with technical, security, accessibility (Section 508), configuration-management, and release standards in coordination with the agency IT office
• Serve as the engagement's dedicated security resource: support Security Assessment & Authorization (SA&A / RMF) - SSP inputs and POA&M remediation - perform continuous monitoring, and coordinate with the agency Security Operations Center (SOC) on vulnerability reviews and incident response
• Collaborate with product owners, SMEs, data teams, and analysts to align solutions to functional requirements and architecture standards
• Produce clear technical and handoff documentation (designs, scripts, data models, traceability matrices)

Requirements:

• Minimum 7 years of software development and systems engineering experience within the past 10 years
• Proven hands-on development on AWS (e.g., SageMaker, RDS, S3, ECS) with Python
• Strong Microsoft Power Platform development - Power Apps (Canvas, Model-Driven, Power Pages, Code Apps), Power Automate, Power BI (SQL, DAX); PCF components a plus
• Experience designing and troubleshooting ETL/data pipelines and integrations
• Database design and development (SQL; Oracle or NoSQL a plus)
• Experience with Test-Driven Development and automated testing (Selenium/Playwright), functional/integration testing, IV&V, and validation documentation
• Familiarity with CI/CD, GitHub, JIRA, ServiceNow, and SharePoint Online
• Working knowledge of cloud security and governance best practices (RMF/ATO, FIPS-aligned encryption, secure configuration)
• Experience serving as or supporting a dedicated security resource: SA&A / RMF (NIST SP 800-53 / 800-37), security architecture for web applications and infrastructure, continuous monitoring, and SOC / incident-response support
• Familiarity with Agile/Scrum methodologies and ceremonies
• Excellent written and oral communication; strong troubleshooting and attention to detail
• AWS certification (e.g., Developer, Machine Learning, or Solutions Architect)
• Experience with ML/AI solutions, model cards, and model validation
• Security certification (e.g., CompTIA Security+) and hands-on SA&A / continuous-monitoring experience
• Prior federal experience; ability to ramp quickly on a regulatory-domain context