Senior Software Engineer - Behavioral Security Products

Role overview Lead complex software delivery for an account protection platform that detects and helps prevent account theft. The work combines backend and machine-learning systems, customer-facing APIs, and internal tools, with responsibility for system reliability, performance, technical direction, and mentoring.

Responsibilities - Design and build scalable backend and machine-learning systems, APIs, frameworks, and internal tools. - Own complex features from technical design through delivery, with attention to customer impact and edge cases. - Improve the stability, latency, monitoring, and operational readiness of critical services. - Write and review design documents, code, and technical proposals; help establish sound engineering practices. - Work with product, design, and engineering partners to set priorities, break down projects, and plan longer-term improvements. - Participate in on-call rotations, communicate progress and issues in an asynchronous environment, and mentor colleagues.

Requirements - At least seven years of industry experience as a software engineer, including senior-level ownership. - Strong Python backend skills and experience designing and scaling production systems. - Demonstrated ability to design resilient, scalable, fault-tolerant systems. - Strong knowledge of relational databases and modern data storage technologies. - Familiarity with service communication and messaging tools such as gRPC or Kafka, and caching systems such as Redis. - Experience with AWS services, deployment practices, containers and orchestration, plus monitoring and incident response. - Ability to lead technical projects, document design choices, collaborate across teams, and support peer development.