Senior Integration Engineer, Business Systems

Role Description

The Business Systems Integration team powers the end-to-end systems that drive Block’s Procurement, Finance, Hardware supply chain, logistics, fulfillment, and after-sales service. We design, build, and manage the integrations and processes that connect all the different systems operations to scale efficiently and intelligently.

We are looking for an Information Systems Engineer who combines strong technical engineering skills with a deep domain knowledge in APIs and Integration. You will build, and enhance integrations, automations, and extensions across the various business systems our organization works with, including Zip, Oracle Fusion Cloud, Salesforce. You will collaborate closely with partner teams including procurement, supply chain, and finance teams to translate business needs into scalable, high-impact system solutions. This is a hands-on technical role ideal for someone who has experience in building complex APIs and Integrations at scale.

You will be part of a distributed team and are open to sharing and adjusting to typical working hours.

Responsibilities

• Design integrations across enterprise business systems, including Zip, Salesforce, Oracle Cloud, Snowflake, Looker, and external partner systems using MuleSoft and Zip’s Integration iPaaS platform.
• Build Python-based tools and automations for data validation, API testing, 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 in Mulesoft as well as Zip iPaaS platform.
• Contribute to technical documentation, design reviews, and version control using GitHub and modern DevOps practices.

Qualifications

• 8+ years architecting, designing, and scaling enterprise APIs and integrations in high-volume environments.
• 5+ years of hands-on experience in one of the iPaaS Integration platforms, preferably MuleSoft.
• 3+ years of recent hands-on experience with Python, Kotlin, Java or Go.
• Hands-on experience integrating with enterprise business systems such as Oracle Fusion Cloud, Zip, Coupa, Salesforce, 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 and technical design.
• Proven track record of delivering complex integrations for procurement, finance, or supply chain systems.
• Deep commitment to delivering quality products.

Nice to Have

• Experience in one or more end-to-end procurement transformation projects using Zip or Coupa, including systems integration, integrations and process optimizations.
• Certifications in Mulesoft, AWS.
• Experience leveraging Cursor, Claude Code, Windsurf or any of the LLM based tools.
• Experience or familiarity in building MCP servers, using Python or Typescript, for exposing tools and processes to Agentic workflows.
• Experience leveraging AI/ML-based automations for automating technical and business processes.

Application Guidelines

Candidates may submit up to 9 active applications within a 60-day period. Reapplications to the same role are accepted 90 days after a previous application has been reviewed.

Use of AI in Our Hiring Process

We may use automated AI tools to evaluate job applications for efficiency and consistency. These tools comply with local regulations, including bias audits, and we handle all personal data in accordance with state and local privacy laws.

Benefits

• Remote work.
• Medical insurance.
• Flexible time off.
• Retirement savings plans.
• Modern family planning.

Company Description

Block, Inc. (NYSE: XYZ) builds technology to increase access to the global economy. Each of our brands unlocks different aspects of the economy for more people.

• Square makes commerce and financial services accessible to sellers.
• Cash App is the easy way to spend, send, and store money.
• Afterpay is transforming the way customers manage their spending over time.
• TIDAL is a music platform that empowers artists to thrive as entrepreneurs.
• Bitkey is a simple self-custody wallet built for bitcoin.
• Proto is a suite of bitcoin mining products and services.