ESN Engineer

Ericsson – ESN Engineer – Dumfries, Scotland, United Kingdom

As a ESN Engineer
, you will own a designated group of sites, working as part of a four‑person team covering adjacent territories. The role demands self‑management, proactive site maintenance, and close collaboration with other ESN engineers and the wider FSO team to solve problems and boost network resilience and availability. You will participate in a 24/7 on‑call rota and may work shifts outside normal business hours.

Travel and extended stays away from home are required for service recovery on remote islands, and you may be called upon to lead recovery efforts during major network events.

• Conduct corrective maintenance activities and manage site facility operations.
• Takes full responsibility for assigned ESN sites, proactively maintaining them to prevent failures and leading coordination with the technical team to resolve any issues.
• Leads problem management for the area, resolving major issues within own and neighbouring territories.
• Works individually and as part of the FSO and wider Ericsson teams to achieve right‑first‑time resolution of work within customer SLAs, without compromising safe working practices.
• Carrying out reactive and proactive maintenance on multi‑customer, multi‑technology networks, achieving agreed performance targets (mostly EE/ESN).
• Participates in a 24×7 callout rota covering all equipment in the Service Area.
• Assists in the development and review of FSO processes and procedures to maximise efficiency.

• Radio Frequency (RF) transmission and receiver systems employed in mobile communication equipment.
• AC/DC power systems (single‑phase and three‑phase).
• UPS systems and deployed ESN generators.
• Satellite backhaul systems.
• Rectification and power distribution systems.
• Fundamentals of GSM, UMTS and LTE.
• Cellular network fundamentals, mobility management and cell planning.
• Radio access network and core network architecture.
• Antenna systems, mast‑head amplifiers, feeder systems and connectors.

The role is based in Scotland and reports directly to the Regional Manager. The primary site is Dumfries; applicants should already reside in or be willing to relocate to Dumfries. The position requires flexible working, participation in a 24/7 on‑call rota, potential shift work, and travel to remote islands for service recovery.