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Senior Business Systems Engineer

Block· 10416 Engineering - Business Platform
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Bay Area, CA$142k - $213kfull-timePosted 5mo ago

About the role

Senior-level role designing, building, and maintaining integrations and APIs across Block’s enterprise systems (CRM, Oracle Fusion Cloud, Salesforce, procurement, finance, supply chain, and more). Hands-on engineering focus with strong API/integration expertise, collaboration with Sales, Support, Supply Chain, and Finance, and leadership in incident response and technical design.

Responsibilities

  • Design integrations across enterprise business systems, including Salesforce, Oracle Cloud, Snowflake, Looker, and external partner systems using MuleSoft or other Integration iPaaS platform
  • Design and build Python-based tools for supporting integrations and automations and process optimization
  • Write and optimize SQL scripts for data extraction, transformation, reconciliation, and analytics
  • Collaborate with partner engineering and operations teams to ensure integration robustness, security, and scalability
  • Create and execute unit, integration, and regression tests for custom components and data flows
  • Monitor and support launched integrations and automations, using metrics and logs to continuously improve reliability and performance of the platform
  • Contribute to technical documentation, design reviews, and version control using GitHub and modern DevOps practices
  • Lead incident response and root cause analysis for critical production applications and integrations

Qualifications

  • 8+ years architecting, designing, and scaling enterprise APIs and integrations in high-volume environments
  • 4+ years of hands-on experience in one of the iPaaS Integration platforms, preferably MuleSoft
  • 3+ years of recent hands-on experience with programming languages (Python, Kotlin, Java or Go)
  • Experience leveraging Claude Code, Codex, Cursor, Windsurf or any of the LLM based tools for Productivity enhancements
  • Experience leveraging AI/ML-based automations for automating technical and business processes
  • Hands-on experience integrating with enterprise business systems such as Salesforce, Oracle Fusion Cloud, Workday or SAP
  • Advanced proficiency in SQL and familiarity with data pipelines in Airflow, Fivetran, Prefect or Databricks
  • Familiarity in working in Cloud platforms, preferably AWS, and services like S3, Lambda, SQS, RDS
  • Solid understanding of software engineering best practices including code reviews, CI/CD pipelines, and documentation
  • Excellent communication and collaboration skills able to translate functional requirements from stakeholders into technical design
  • Proven track record of delivering complex integrations for procurement, finance, or supply chain systems
  • Deep commitment to delivering quality products
  • Experience managing complex applications and integrations in Production, providing KTLO support and root cause analysis

Skills

Required:APIs and integrations designiPaaS platforms (MuleSoft)Programming (Python, Kotlin, Java, or Go)SQLCloud platforms (AWS)

Benefits

  • Remote work, medical insurance, flexible time off, retirement savings plans, and modern family planning
Last updated Oct 7, 2026. Interested? Apply on the company site.
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About Block

Block builds technology to increase access to the global economy.

Made up of Square, Cash App, Afterpay, TIDAL, Bitkey, and Proto, Block, Inc. builds technology to increase access to the global economy.

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