Senior Salesforce Test Engineer

Location: Remote (occasional travel to Swindon)

Contract: Until 30 September 2026

IR35: Inside

Clearance: BPSS required

Rate: Up to £550 per day (Umbrella)

About the Role

We are seeking an experienced Senior Salesforce Test Engineer to support a major public sector digital programme. You will play a key role in ensuring the quality and reliability of enterprise Salesforce solutions across complex integrated systems, contributing across the full software delivery lifecycle.

Key Responsibilities

* Functional, integration, exploratory, and non-functional testing

* Test automation using Playwright and BDD (Cucumber)

* API testing using Postman or Rest Assured

* Collaboration with Salesforce developers on unit test coverage

* Supporting UAT with business analysts

* Managing defects through to resolution

* Maintaining and improving regression test suites

* Supporting release and DevOps processes

* Mentoring junior testers

* Stakeholder reporting and demos

Essential Skills & Experience

* Strong Salesforce (SFDC) platform experience

* Salesforce functional & integration testing

* Salesforce Admin 201 or equivalent experience

* Playwright automation experience

* BDD frameworks (Cucumber)

* API testing tools (Postman / Rest Assured)

* JavaScript or Java scripting (read/write ability)

* Experience testing React-based applications

* Agile delivery experience

* CI/CD and DevOps understanding

Desirable Experience

* ISTQB or Agile Tester certification

* ITIL Foundation

* Apex (basic scripting/reading)

* Loans & Investment application experience

* Conga templates

* FinDock & GoCardless integrations

* Experience delivering digital transformation programmes

About You

You are a senior test engineer with strong Salesforce expertise and a passion for automation and quality engineering. You are confident working across technical and business teams, mentoring others, and improving testing practices in Agile and DevOps environments