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Software Engineer

Technology
Haystack
Missouri, United States$115,000 - $184,000 /year3 weeks agoUntil 6/4/2026
Full timeHybrid

Job description

Senior Software Engineer | St Louis | $115,000 - $184,000 USD

We're hiring for a global technology leader that powers economies and empowers people across 200+ countries and territories worldwide. This organization is at the forefront of creating a sustainable economy where everyone can prosper, facilitating secure, simple, smart, and accessible digital payment choices.

The Role

  • Act as a hands-on Rule Author with deep experience in Fraud Rules Engines.
  • Drive implementation best practices with a strong capability in writing and improving rule quality.
  • Follow solution architectural designs, ensuring alignment with business needs and technical capabilities.
  • Utilize programming languages such as Java, Python, or Go for platform development and enhancements.
  • Serve as a force multiplier for automation and platform enhancements within the AI & DPE organization.
  • Modernize platforms related to Fraud Rules/Engines and manage large-scale migrations.

What You'll Need

  • Proven hands-on software development experience with familiarity in DevOps best practices.
  • Experience with Fraud Rule Engines and successful large-scale migration projects.
  • Working knowledge across multiple programming languages and frameworks.
  • Strong communication, collaboration, and organizational skills, with the ability to build relationships.
  • Demonstrated track record with AI technologies, including Gen AI and LLMs, relevant to fraud rules.
  • Experience with relational and NoSQL databases, and understanding of loosely coupled, stateless systems.

What's On Offer

  • Opportunity to work on scalable global platforms with high throughput and low latency.
  • A competitive salary range of $115,000 - $184,000 USD.
  • Comprehensive benefits package including insurance, retirement plans, and paid time off.
  • Exposure to cutting-edge AI technologies and a commitment to continuous learning and development.
Apply via Haystack today!
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