Technical Support and Quality Assurance Engineer

Technical Support & QA Engineer — Own the Quality Behind Every Charging Session

Join a Global Leader in Sustainable Energy.

At EN Plus, we are more than just a manufacturer; we are the architectural engine behind the global shift to sustainable mobility. With a decade of stable operations and an unwavering commitment to innovation, we have established ourselves as a dominant force in the EVSE industry. We empower companies around the world with reliable, scalable, and compliant EV charging solutions through our leading technical expertise.

Empowering good energy, everywhere.

• 1.5 Million+ EV chargers delivered globally.
• 200 Million+ successful charging sessions supported via our partner platforms.
• 60+ Countries supplied with region-ready charging solutions.
• 450+ Global Employees including a 180+ person dedicated R&D powerhouse.

We are seeking a meticulous Technical Support & QA Engineer to join our lean, high-impact UK/EU regional office in Sevenoaks, Kent. This is a dual-purpose role for an engineer who is equally capable of proving why a charger failed in the field and proving that the next release will not break the ones already working.

A modern charger is no longer just hardware. It performs only if the firmware, the installer app and the back-office integration all behave correctly — and keep behaving through every over-the-air update. You will own both sides of that equation: the deep diagnosis when something goes wrong in the field, and the verification that prevents it going wrong at all.

These two halves are deliberately combined. The engineer diagnosing real field failures is the best-placed person in the business to determine what our test coverage must include, and every fault you diagnose should become a test that prevents its return.

This is a foundational role. You will be the first person in this seat, building the test discipline, the bench and the regression library. You are expected to hold the line on release quality and to state clearly, with evidence, when something is not ready to ship.

• Role: Technical Support & QA Engineer
• Reporting to: Head of Product & Project Delivery
• Work Arrangement: Hybrid (3–4 days in-office / 1–2 days home), reflecting the hands‑on nature of bench-based fault replication and release testing

1. Level 2/3 Technical Escalation & Root Cause Analysis

• Escalation Ownership: Take on the technical cases that B2B customer’s first or second line support, partner service desks and field engineering cannot resolve, across our full UK/EU product portfolio.
• Fault Replication: Reproduce field‑reported faults on the bench using device logs, OCPP and Web Socket traces, BLE captures, network simulation and platform‑side analysis. This is the core technical skill of the role.
• Root Cause Analysis: Construct defensible RCA — 8D, fault tree, timeline reconstruction — and drive it to closure with our R&D headquarters, maintaining an open‑questions register until every question is answered.
• Partner/Customer‑Facing Technical Positions: Produce written technical findings to a standard suitable for sharing directly with a customer’s own engineering team.

2. Release Verification & Test Ownership

• Test Plan Ownership: Write and maintain test plans and regression suites covering charger firmware, the app (iOS and Android, BLE commissioning) and platform integrations.
• Release Verification: Verify every release candidate before it reaches the UK/EU fleet and provide a documented go / no‑go recommendation supported by executed evidence.
• Protocol Conformance: Run OCPP conformance and interoperability testing against partner back‑office platforms, covering reconnection, session recovery and error paths — not only the happy path.
• Traceability: Maintain traceability from requirement to test case to result, so release evidence withstands partner and regulatory scrutiny.

3. Fleet Quality & Continuous Improvement

• Regression Conversion: Turn every confirmed field defect into a permanent regression test — the mechanism that stops issues recurring.
• Quality Reporting: Track failure trends by product line, firmware version and partner, and report monthly to UK…