Lead Software Engineer

Lead Software Engineer

Remote (USA) 6-Month Contract GC, USC

Apache Drools (KIE/DRL), Java, JUnit, and business rules/decisioning platform expertise.

We are seeking a highly skilled Lead Software Engineer (Drools) to design, develop, and maintain business rules for a large-scale underwriting and decisioning platform. This role involves translating complex credit and risk policies into high-performance, scalable, and explainable Drools-based rule systems that support real-time decision-making.

Responsibilities

• Design, develop, and maintain Drools (KIE) rules using DRL, Decision Tables, and Rule Templates

• Translate complex business requirements into efficient rule-based logic for underwriting and eligibility decisions

• Optimize rule execution for high performance, low latency, and scalability

• Ensure solutions are auditable, explainable, and compliant with regulatory standards

• Contribute to decisioning architecture , including rule versioning and controlled deployments

• Develop unit tests and scenario-based validations for rule accuracy

• Troubleshoot and resolve production issues related to rule execution

• Collaborate with cross-functional teams including engineering, QA, and business stakeholders

• Mentor junior engineers and establish best practices for rule development and governance

• Required Experience

• 7+ years of experience with Apache Drools (KIE/DRL)

• Strong programming experience in Java

• Experience with JUnit and test-driven development

• Solid understanding of business rules engines and decisioning platforms

• Experience in performance optimization and rule execution tuning

• Strong analytical, problem-solving, and communication skills

• Ability to work independently in a fast-paced, collaborative environment

• Preferred

• Experience in financial services, underwriting, or risk decisioning systems

• Familiarity with rule governance, compliance, and audit frameworks

• Prior experience in mentoring or leading engineering teams