# Senior Software Engineer, Core Platform## FloQastPublished 16 Jul 2026### Share this jobSan Jose, CA, USA144K - 216K USD AnnualFull Time## Role Highlights### Languages usedTypeScriptCS3### Key skillsData EngineerDistributed SystemsSystem DesignFull StackBackendAuthenticationReliabilitySecurityArchitectureAsynchronousStreamingStorageInfrastructureStartupB2BSAASFrontendDevopsOperationsTransformationPerceptionAIGoogle AnalyticsConsole### Tools, Libraries and FrameworksKafkaMongoDBAWS## DescriptionThe role involves driving the design, implementation, and evolution of foundational backend systems. The individual will build and optimize critical platform capabilities, including end-to-end data platforms, core services, and authentication frameworks. The position requires maintaining high standards for reliability, security, and scalability to support product engineering teams. The work focuses on developing asynchronous architectures and managing complex workflow orchestration. Additionally, the role entails optimizing backend data platforms to handle high-throughput workloads while advocating for clean coding patterns and architectural standards.## Required Qualifications and SkillsThe role requires at least seven years of software engineering experience with a focus on backend engineering, distributed systems, and core platform development. Candidates must demonstrate proficiency in TypeScript and possess production experience with Temporal, Kafka, MongoDB, and AWS. Experience delivering technical solutions within high-growth Series B or Series C environments is necessary. Furthermore, the position requires a background in the B2B SaaS industry and demonstrated success in contributing to complex data pipelines and identity systems.
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