Credential

OPC UA Developer

Assesses whether you can build and operate OPC UA software: event and history access, your own information model, a working PKI, and a client that survives a server restart without losing its subscriptions.

Requires	Track A, Track B
Exam	50 questions
Pass mark	75%
Valid for	24 months
Cost	Free

How it is assessed

Fifty questions, plus a submitted artefact: a working client that reads a typed value from the umati sample server, subscribes with a deadband, and handles three named failure conditions correctly. The artefact is reviewed, not auto-graded: it is what makes this credible on a CV.

What it is aligned to

Aligned to the conformance units behind the event and historical access facets, the certificate validation and user-authentication units, and the nodeset import and DataTypeDefinition handling covered in Part 5 and Part 6.

What this credential is not: This credential is issued by OPC UA Connect and by nobody else. Certification in the OPC UA ecosystem is a product-level programme: a specific product version is tested at an independent laboratory against named profiles and facets. We are not aware of any individual, person-level OPC UA certification offered by the specification's publisher or by any standards body. So this certificate is not issued by, recognised by, endorsed by, accredited by or equivalent to any such programme, and it should not be described as one. What it does assess is real, and the profiles and facets it is aligned to are public and named: see our disclosure page for how we state all of this.

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Last verified 7 September 2026 against OPC UA 1.05.07. OPC UA Connect is an educational resource and is not affiliated with the OPC Foundation.