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FloQastFloQastSan Jose, CA

Staff Software Engineer, Core Platform

Lead the design, architecture, and evolution of scalable backend core platform systems including data platforms, core services, auth frameworks, Kafka event streaming, and Temporal orchestration. Requires 10+ years backend engineering experience with deep expertise in TypeScript, distributed systems, and B2B SaaS platforms.

Salary not listed
Hybrid10+ YOEBackend Engineering

About the role

What You'll Do

Core Platform Architecture: Lead the design and implementation of highly scalable, distributed core services and backend platform components using TypeScript and modern cloud-native technologies.

Orchestration & Messaging: Architect and maintain reliable asynchronous architectures, utilizing event streaming (Kafka) and complex workflow orchestration (Temporal) to power critical business logic.

Platform Security Systems: Own the evolution and scaling of our enterprise-grade authentication and authorization frameworks, ensuring seamless and secure data access layers.

End-to-End Data Engineering: Design, optimize, and scale complex backend data platforms and document-based storage systems (MongoDB) to handle high-throughput workloads.

Technical Leadership & Standards: Establish clean coding patterns, robust architectural standards, and best practices for the backend engineering organization while mentoring junior and senior engineers.

Cross-Functional Influence: Partner closely with Product, Security, and Core Infrastructure teams to align platform capabilities with long-term product roadmaps and strategic company goals.

What You'll Bring

  • 10+ years of software engineering experience with a deep, specialized focus on "pure" backend engineering, distributed systems, and core platform development.
  • Expert-level proficiency with TypeScript alongside deep production experience within our modern ecosystem stack (Temporal, Kafka, MongoDB, and AWS).
  • Startup DNA: Proven experience delivering high-impact architectural solutions within fast-paced, high-growth Series B or Series C environments.
  • Industry Domain Knowledge: A strong background in the B2B SaaS space, with a track record of building platforms that scale alongside growing enterprise customer demands.
  • System Design Expertise: Demonstrated success building complex, end-to-end data pipelines, identity/access systems, and high-availability core services from scratch.
  • Clear Engineering Focus: A profile centered squarely on core backend application architecture rather than frontend/full-stack development or infrastructure-heavy/DevOps operations.
  • Strategic Communicator: An effective collaborator who can easily break down complex architectural technical concepts and influence both technical and non-technical stakeholders.

Skills

TypeScriptKafkaTemporalMongoDBAWSDistributed SystemsBackend ArchitectureAuthenticationAuthorizationData Pipelines
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