Toptal: Senior Integration Engineer for Enterprise API & Integration Products

The useful part

Summary We are looking for a Senior Integration Engineer to build and operate integration products connecting Salesforce, SAP, and a carrier data lake. This role combines hands-on integration development with end-to-end production ownership, including API design, data mapping, testing, monitoring, troubleshooting, and recovery. General information This role focuses on building reliable, maintainable integrations rather than creating new point-to-point integration debt.

How it works

• Strong experience with MuleSoft or a comparable enterprise integration/API platform is expected, along with practical experience integrating with SAP and working with data lake ingestion patterns.
• You will use AI copilots and agents as part of your daily workflow to accelerate discovery, development, testing, documentation, and operational troubleshooting.
• Tasks and Deliverables Design and implement MuleSoft/API integrations across Salesforce, SAP, and the carrier data lake.
• Use Data Modeler to develop and maintain accurate data mappings between systems.
• You will remain responsible for validating and hardening output and for all production decisions.

What to take from it

AI-assisted engineering is an explicit expectation for this engagement. Define and maintain API contracts, field mappings, transformations, and automated tests. Debug and resolve production integration failures independently, including root-cause analysis and preventative improvements.

Example or evidence

• Support Marketing Portfolio transition integrations while avoiding unnecessa...