Senior Software Engineer Backend / Rules

Senior Software Engineer — Backend / Rules

We're building an AI-assisted platform that helps our client audit federal financial data, and we need a senior backend engineer to build its decision-making core: a rules engine that takes the facts pulled from client supplied data and applies complex eligibility and subsidy rules to determine whether a payment was correct. The defining requirement is trustworthiness — the same inputs must always produce the same result, and every decision must be fully explainable and auditable, because real federal dollars and audit findings ride on it. This position is located in our Fairfax, VA, Knoxville, TN, Lebanon, VA, Belton, TX or Lafayette, LA office; however, a hybrid working model is acceptable.

Your Future Duties And Responsibilities:

- Design and build the rules engine: given a set of facts about a case, apply the governing rules to reach a decision, with the guarantee that identical inputs always yield identical, auditable outputs. - Build the framework that lets the rules be authored and versioned, including logic that applies the right rules for each specific program (the programs have different rules across many sub-programs). - Build a thorough automated test suite — reproducibility and traceability are first-class requirements, not afterthoughts. - Support rolling out updated rule versions and parameters in future audit cycles.

Required Qualifications To Be Successful In This Role:

- Bachelor's degree in Computer Science, Engineering, or a related field. - 7+ years of professional software engineering experience. - Strong deterministic backend development. - Demonstrated experience with rules-engine / decision-logic design and versioned-artifact discipline. - Strong automated-testing discipline. - Must be a US person and able to obtain the suitability/clearance required for an AWS GovCloud environment. Desired qualifications/non-essential skills required: - Experience in regulated domains where reproducibility and auditability are mandatory (finance, healthcare, government benefits). - Familiarity with policy-as-code or configuration-driven rule systems. - Exposure to benefits-program eligibility/subsidy logic.

Compensation decisions are dependent on the facts and circumstances of each case. A reasonable estimate of the current range for this role in the U.S. is $89,600.00 - $223,200.00.

What You Can Expect From Us:

Together, as owners, let's turn meaningful insights into action. Life at CGI is rooted in ownership, teamwork, respect and belonging. Here, you'll reach your full potential because… You are invited to be an owner from day 1 as we work together to bring our Dream to life. That's why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our company's strategy and direction.Your work creates value. You'll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas, embrace new opportunities, and benefit from expansive industry and technology expertise.You'll shape your career by joining a company built to grow and last. You'll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons. Come join our team—one of the largest IT and business consulting services firms in the world.