# Senior Integration Engineer, Business Systems

**Company:** [Square](https://hotfix.jobs/companies/square)
**Location:** Remote
**Role:** Backend Engineering
**Salary:** $185k – $327k/yr
**Experience:** 8+ years
**Skills:** mulesoft, zip ipaas, Python, Kotlin, Java, Go, SQL, oracle fusion cloud, Salesforce, AWS, Snowflake, Looker, Airflow, Fivetran, Databricks
**Posted:** 2026-08-05

> Build and scale enterprise APIs, integrations, and automations across procurement, finance, supply chain, and related business systems. The role requires extensive integration architecture experience, hands-on iPaaS expertise, programming ability, advanced SQL, and cloud-platform familiarity.

## Job Description

## 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 improve reliability and performance in MuleSoft and the Zip iPaaS platform.
- Contribute to technical documentation, design reviews, and version control using GitHub and modern DevOps practices.

## Requirements

- 8+ years architecting, designing, and scaling enterprise APIs and integrations in high-volume environments.
- 5+ years of hands-on experience with an iPaaS integration platform, preferably MuleSoft.
- 3+ years of recent hands-on experience with Python, Kotlin, Java, or Go.
- Experience integrating 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 with cloud platforms, preferably AWS, and services such as S3, Lambda, SQS, and RDS.
- Understanding of software engineering best practices, including code reviews, CI/CD pipelines, and documentation.
- Ability to translate stakeholder requirements into technical designs.
- Proven experience delivering complex integrations for procurement, finance, or supply chain systems.
- Strong communication, collaboration, and quality focus.

## Nice to Have

- Experience with end-to-end procurement transformation projects using Zip or Coupa, including systems integration and process optimization.
- MuleSoft or AWS certifications.
- Experience with Cursor, Claude Code, Windsurf, or other LLM-based tools.
- Experience building MCP servers using Python or TypeScript for exposing tools and processes to agentic workflows.
- Experience leveraging AI/ML-based automations for technical and business processes.

## Compensation and Benefits

- ATS-listed salary range: **$185,200–$326,800 USD annually**.
- Market-based pay varies by location and is determined by skills, experience, qualifications, work location, and market conditions.
- Benefits include remote work, medical insurance, flexible time off, retirement savings plans, and modern family planning.

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