Senior Software Engineer, Core Platform

FloQast · San Jose, California

As a Senior Software Engineer, Core Platform, you will be a key contributor driving the design, implementation, and evolution of FloQast’s foundational backend systems. You are a "systems thinker" who will build and optimize critical platform capabilities, including our end-to-end data platforms, core services, and robust authentication/authorization frameworks. Working in a high-growth environment, you will help maintain high standards for reliability, security, and scalability, enabling product engineering teams to build seamlessly on top of a powerful, resilient backend foundation.

What You'll Do

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

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

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

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

  • Technical Standards: Adhere to and advocate for clean coding patterns, robust architectural standards, and engineering best practices across the backend organization.

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

What You'll Bring

  • 7+ years of software engineering experience with a strong, specialized focus on backend engineering, distributed systems, and core platform development.

  • Strong proficiency with TypeScript alongside solid production experience within our modern ecosystem stack (Temporal, Kafka, MongoDB, and AWS).

  • Startup DNA: Proven experience delivering high-impact technical 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 backend applications that scale alongside growing enterprise customer demands.

  • System Design Experience: Demonstrated success contributing to complex data pipelines, identity/access systems, and high-availability core services.

  • Clear Engineering Focus: A profile centered squarely on core backend application architecture rather than frontend/full-stack development or infrastructure-heavy/DevOps operations.

  • Effective Communicator: A strong collaborator who can clearly explain technical concepts and work productively with both technical and non-technical stakeholders.

  • Software pay context

    Based on 7,836 disclosed Software salaries on RoleSuite, the role pays a median of $158K/year, with most offers between $123K and $200K (10th–90th percentile: $102K–$235K).

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