Senior Backend Infra Engineer – Real-Time Fraud Systems

RecSkills; San Francisco (CA); On-site; USD 130,000 - 210,000; Full time

Job summary

RecSkills in San Francisco is seeking a Senior Backend Engineer / Infrastructure Engineer to build fraud/risk detection infrastructure and scale distributed systems. This role centers on real-time processing, end-to-end feature delivery, and scaling to support billions of events and millions of users.

You will collaborate with engineering and product teams, ship features with urgency, and contribute to a platform designed for rapid growth in a dynamic environment.

Qualifications

• Experts in distributed systems and real-time processing.
• Experience with NoSQL databases (Cassandra, DynamoDB, BigTable) and streaming.
• Familiarity with scaling vector databases and LLM-based systems.
• Ability to independently own and deliver product features end-to-end.

Responsibilities

• Ship end-to-end product features with ownership and urgency
• Scale infrastructure to support high-transaction systems and millions of users
• Develop distributed and real-time systems for fraud/risk detection or similar use cases
• Build scalable fundamentals for the product across industries
• Collaborate closely with engineering and product teams

Skills

Distributed systems

Real-time processing

NoSQL databases

Streaming technologies

LLM-based systems

End-to-end ownership

Vector databases

Kubernetes

Tools

Kubernetes

Job description

RecSkills in San Francisco is seeking a Senior Backend Engineer / Infrastructure Engineer to build fraud/risk detection infrastructure and scale distributed systems. This role centers on real-time processing, end-to-end feature delivery, and scaling to support billions of events and millions of users.

You will collaborate with engineering and product teams, ship features with urgency, and contribute to a platform designed for rapid growth in a dynamic environment.