Particle Measuring Systems (PMS) is replacing its IFS ERP with Infor LN, delivered with Infor. Interface build and testing are under way from October 2026, with go-live targeted for July 2027.
The program includes integrations between Infor LN and the following third-party systems: Salesforce (sales and service, bidirectional), NoMuda (MES, on-premises), Modula (automated warehouse, on-premises), a trade compliance platform, a tax engine, e-invoicing and bank payment files, Workday, ADP, UPS, FedEx, PayPal Braintree and a software license service. Infor builds and tests the LN side. PMS owns the other side: third-party configuration or build, test environments, connectivity, credentials and end-to-end testing. The Business Systems team designs, prepares and builds, with one engineer close to full time on integration; build and test need a second.
Role summary
You are one of two hands-on integration engineers on the PMS side, from validating Infor’s technical specifications, through build, connectivity, testing and go-live support. You own the non-LN build and configuration (API configuration and authentication, middleware and connector configuration, file interfaces, scripts and test automation), the test environments, the connectivity between LN and each third-party system, and the tests that prove each integration works. Salesforce is administered in-house; for the two on-premises systems the vendors' professional services may be engaged for their side, in which case you coordinate and test that work. The first priority is proven connectivity for the complex integrations in test environments, followed by unit testing of the standard ones.
This is a systems-integration role, not an application development role: the craft is making an ERP and its surrounding systems talk, and proving it, on a live implementation.
Responsibilities
Review Infor's technical specifications (TAR-040) from the third-party side: mappings, keys, error handling, feasibility
Build and configure the third-party side: Salesforce with the Salesforce administrator, API and file interfaces for cloud vendors, vendor professional services for on-premises systems
Obtain and configure vendor test environments, credentials and service accounts; keep the inventory; maintain environment-specific endpoints, credentials and configuration across Infor's test, training and production tenants and each vendor's equivalent; keep the per-integration readiness record current
Prove each LN to third-party connection early in the test landscape; work with PMS infrastructure on network and security for on-premises systems
Trace failures across LN, middleware, network and third-party systems using API responses, logs, message queues, SQL and vendor diagnostics; own the fix or the escalation
Write and execute unit and end-to-end integration tests with process owners; load test data with the data migration team; log and chase defects with Infor
Support deployment through Infor's environments to production, cutover checks and hypercare
Document a hand-over note per integration
You support Infor's LN-side build, the Technical Delivery Architect's architecture decisions (the Business Systems Manager's until that role is in post), and process owners defining acceptance scenarios.
Experience, knowledge and skills
Required:
Five or more years of hands-on integration engineering between business systems: building, connecting and testing
REST API integration (OAuth, API keys, payloads, error handling) and file-based integration (flat file, XML, SFTP)
Setting up and running integration tests: environments, test data, defect tracking with a vendor team
Reading technical specifications critically; working with vendors to obtain documentation, sandboxes and support
Strongly valued:
An ERP implementation or major upgrade taken through go-live
Manufacturing or distribution experience: shop floor, warehouse, shipping, order-to-cash
An integration platform: Infor ION and its API Gateway…