Title: Senior Software Engineer

Location: O'Fallon, Missouri - Onsite ( need Local ONLY- F2F mandatory)

Glider: Software Engineering Advanced ( Candid has to score min 60% to get qualified for sub)

• NO F1's/ OPT's
• Prior experience with MasterCard, Visa, American Express, or similar payments/banking clients is preferred.
• 10+ years ( mid - snr level)

Overview

We are seeking a Senior Software Engineer to join the Business Rules Engineering & Strategy team. You will help design and implement robust IBM ODM Rule solutions for transaction-level decisioning, alerting, and notifications. Our rules embed intelligence into the payment lifecycle, leveraging scoring models, behavioral data, and agile deployment practices to deliver competitive advantages across the payment ecosystem.

Role & Responsibilities

• Provide technical expertise for fraud prediction applications, including high-volume, mission-critical transaction systems.
• Analyze requests for Fraud Rule changes and assess the effectiveness of proposed solutions.
• Design and implement effective rule strategies.
• Develop, test, and deploy rule changes in an agile environment.
• Validate rule changes against transaction data to ensure accuracy and quality.

Required Skills & Qualifications

• Bachelor's degree in Information Systems, IT, Computer Science, Engineering, or equivalent experience.
• Experience with IBM Operational Decision Manager (ODM).
• Skilled in rule authoring, SQL, and agile software development.
• Experience delivering technical solutions aligned with business and product strategies; financial services or payments experience is a plus.
• Background in object-oriented design and development (Java preferred; experience with multiple OO languages a plus).
• Knowledge of software engineering concepts, agile lifecycles, test automation, and behavior-driven development.
• Strong problem-solving, analytical skills, and attention to detail.
• Ability to work independently and manage multiple initiatives under tight deadlines.
• Passion for preventing payment fraud and improving the customer experience.
• Flexible and adaptable to changing priorities.

Assignment Details

• Duration: 24 months, with potential for extension or conversion.
• Team Focus: Business Rule Authoring
• Level: Advanced
• Interview Rounds: 2 (1 manager, 1 technical)
• Access Needed: Network and badge

Top 3 required skills:

1. Rule Authoring

2. SQL

3. Agile software development

Relevant Job Titles

• Senior Software Engineer Business Rules / Fraud Systems
• Business Rules Developer / Engineer
• Fraud Detection Software Engineer
• Payment Systems Software Engineer
• IBM ODM Developer / Senior Developer
• Decisioning Systems Engineer