Principal Software Engineer, Applications (Backend)

Reach Security

full-time

Posted on: 8/21/2025

Origin: • 🇺🇸 United States

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Lead

AWSCyber SecurityPythonTerraform

About the role

Architect, design, and implement scalable APIs that expose security data and recommendations to customers and internal systems.
Lead the design of OLTP database schemas that balance performance, normalization, and multi-tenant isolation at scale.
Build core backend services that support Security Policy Drift Detection, modeling intended vs. actual configurations across diverse systems.
Integrate LLMs into backend services to surface new insights in complex data.
Drive technical direction for backend applications, balancing product requirements, performance, and long-term maintainability.
Collaborate across engineering, product, and security teams to translate ambiguous goals into concrete architectures.
Mentor engineers, elevate coding standards, and provide deep technical guidance through design and code reviews.
Ensure system reliability and availability in production through sound observability practices and resilient architectures.

8+ years of experience in backend software engineering, with significant time spent designing APIs and high-performance data systems.
Production experience with Python and its ecosystem.
Expertise in relational databases (schema design, indexing, query optimization, and OLTP performance tuning).
Strong background in API design and development best practices.
Experience with multi-tenant SaaS architectures, ensuring data isolation, scalability, and robust security.
Deep understanding of data structures, algorithms, and computational complexity.
Strong system design skills for building highly scalable and maintainable backend systems.
Familiarity with integrating machine learning and AI models into production systems.
Strong communication skills, with the ability to clearly convey complex technical concepts.
US Citizenship or Green Card holder.