# Senior Software Engineer, Core Platform

**Company:** [FloQast](https://hotfix.jobs/companies/floqast)
**Location:** San Jose, CA
**Role:** Backend Engineering
**Experience:** 7+ years
**Skills:** TypeScript, Kafka, Temporal, MongoDB, AWS, Distributed Systems, Backend Engineering, System Design
**Posted:** 2026-06-30

> Senior Software Engineer building and scaling FloQast's foundational backend platform, including distributed core services, event streaming with Kafka, workflow orchestration with Temporal, auth frameworks, and high-throughput MongoDB data platforms. Requires 7+ years backend/distributed systems experience in B2B SaaS startups.

## Job Description

## 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.

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**Apply:** https://hotfix.jobs/jobs/09909145-f1aa-4d26-b862-48ab4bb5a374
**Canonical:** https://hotfix.jobs/jobs/09909145-f1aa-4d26-b862-48ab4bb5a374