The Role
Designs, develops, optimizes, and maintains Drools/KIE business rules for underwriting and real-time decisioning. Translates credit and risk policies into performant, explainable, auditable rules using DRL, decision tables, and rule templates. Responsibilities include architecture, testing, troubleshooting, production support, deployment, documentation, standards enforcement, and mentoring junior engineers.
Summary Generated by Built In
We are seeking a Senior Drools Engineer to design, build, and maintain business rules for a large‑scale underwriting and decisioning platform. This role focuses on translating complex credit and risk policies into high‑performance, explainable Drools rules that power real‑time decisions.
Key Responsibilities
• Design, develop, and maintain Drools (KIE) rules using DRL, Decision Tables, and Rule Templates to implement complex underwriting, eligibility, and policy logic
• Optimize rule execution for low latency and high throughput, including management of rule salience, agenda groups, rule flows, and conflict resolution
• Ensure decisions are deterministic, explainable, and auditable, meeting regulatory and audit requirements
• Contribute to the overall decisioning and rules architecture, designing rule sets for reusability, versioning, and controlled rollout
• Participate in design reviews and technical discussions related to rule design and platform evolution
• Develop unit tests and scenario‑based tests to validate rule behavior across multiple decision paths
• Troubleshoot production issues related to rule execution and support deployments across development, QA, and production environments
• Act as a subject‑matter expert for Drools and business rules best practices, mentoring junior engineers
• Establish and enforce standards for rule authoring, documentation, testing, and maintainability
Required Qualifications
• 7+ years of software engineering experience
• 5+ years hands‑on experience with Drools / KIE
• Strong proficiency in Java
• Experience in building a lightweight orchestration layer using Apache Pekko is a plus
• Deep experience with:
◦ DRL, Decision Tables, Rule Templates
◦ Stateless and stateful KIE sessions
◦ Rule performance tuning and debugging
◦ Experience building or supporting policy‑driven or decisioning systems
◦ Strong understanding of business rules management systems (BRMS)
◦ Exposure to cloud platforms and CI/CD pipelines
What Success Looks Like
• Business policies are accurately captured as maintainable Drools rules
• Decisions are fast, consistent, and explainable
• Rule changes can be made confidently without impacting platform stability
• The rules layer is reliable, scalable, and regulator‑ready
Skills Required
- 7+ years of software engineering experience
- 5+ years of hands-on Drools/KIE experience
- Strong proficiency in Java
- Experience with DRL, Decision Tables, and Rule Templates
- Experience with stateless and stateful KIE sessions
- Experience with rule performance tuning and debugging
- Experience building or supporting policy-driven or decisioning systems
- Strong understanding of business rules management systems
- Exposure to cloud platforms and CI/CD pipelines
- Experience building or supporting a lightweight orchestration layer using Apache Pekko
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The Company
What We Do
Proclink is a digital and AI transformation company that helps regulated and operationally intensive enterprises modernize systems, workflows, and decision environments. It combines strategy and consulting, data engineering, artificial intelligence, analytics, implementation and integration, managed services, and technology services. The company serves manufacturing, financial services, life sciences, and other regulated industries, delivering connected enterprise intelligence and measurable operational performance for clients.
