Technical Delivery Specialist - ESN

BT plc; Borehamwood; On-site; GBP 70,000 - 100,000; Full time

Benefits offered by this job

10% on target annual bonus

Private GP 24/7

Carers leave up to 2 weeks

Maternity/Paternity leave – 18 weeks/8

BT product discounts

Pension scheme 5% + 10%

Holiday purchase scheme

Job summary

BT plc is seeking an ESN Technical Delivery Specialist to lead the technical delivery of devices and services for the UK Emergency Services Network (ESN). The role spans requirements through deployment, collaborating with device manufacturers and network teams to assure safety, interoperability and readiness.

You will translate contractual and technical requirements into clear acceptance criteria, manage risks, and provide concise decisions to keep delivery moving in a high-visibility, critical

Qualifications

• Experience delivering or assuring mobile devices, apps or telecom services in a complex technical environment.
• Strong knowledge of LTE/5G networks including IMS, VoLTE, packet data and device to network signalling.
• Experience developing test plans, acceptance criteria and technical recommendations; ability to analyse logs and test results.

Responsibilities

• Own the technical delivery of Emergency Services Network devices and services from scope through testing, approval and handover.
• Translate requirements into acceptance criteria, test scope and delivery plans.
• Coordinate device onboarding, validation, network integration and service readiness.
• Review device capabilities, configurations, logs and test evidence across 4G/5G and related services.
• Plan and support lab, field and supplier test activity; ensure environments and resources are ready.
• Investigate issues with manufacturers and partners; drive root-cause analysis and recovery actions.
• Manage defects through triage and escalation of risks affecting safety, schedule or cost.
• Maintain accurate technical records and provide status updates to leadership.

Skills

Mobile devices delivery

LTE/5G networks

Test plans

Stakeholder management

Issue resolution

Tools

IRM/QA tools

Job description

Advanced warning of scheduled maintenance:

Due to scheduled system maintenance, the career site may be unavailable from 10:00 (GMT) Friday 13 November and 06:00 (GMT) Saturday 14 November. If you experience any issues during this period, please return after 06:00 on Saturday 14 November to continue with your application. We apologise for any inconvenience this may cause.

Job Title: Technical Delivery Specialist - ESN

Req ID: 64002

Job Function: Software Engineering

Posting Start Date: 12/11/2026

Posting End Date: 23/11/2026

Division: Networks

Job Location: GBR Borehamwood - Warwick Plc

Advertised Salary: CLD

Location – Borehamwood (You will need to be in the office 5 days a week)

About the role

This is an exciting opportunity to play a key role in the technical delivery of the UK Emergency Services Network (ESN), helping ensure devices and services are safe, secure, interoperable and ready for use by emergency services customers.

As an ESN Technical Delivery Specialist, you’ll work within Device Delivery and collaborate with device manufacturers, application providers, network, test, security, service and programme teams to take solutions from initial requirements through integration, validation, approval and deployment.

You’ll provide hands-on technical leadership across device onboarding and acceptance, including device type approval, network and service validation, defect management and supporting technical evidence. You’ll turn complex technical findings into clear decisions, risks and actions, helping stakeholders understand what’s needed to keep delivery moving.

This is a great opportunity to make a real impact on a nationally important programme, improving the quality and pace of technical delivery while maintaining the strong governance, assurance and traceability required for a critical emergency services network.

The successful candidate must be willing to undergo BPSS-level government screening, which requires at least three years of continuous residence in the UK.

What you’ll be doing

• Own the technical delivery of assigned Emergency Services Network devices and services from initial scope through testing, approval and handover.
• Translate customer, contractual and technical requirements into clear acceptance criteria, test scope and delivery plans.
• Coordinate device onboarding and assurance activities, including UDTAS, MCX-related validation where required, network integration and service readiness.
• Review device capabilities, configurations, logs and test evidence across 4G and 5G, IMS and VoLTE, data, messaging, emergency calling and mission‑critical service use cases.
• Plan and support laboratory, field and supplier test activity. Confirm that environments, devices, SIMs, software, network features and resources are ready before execution.
• Investigate technical issues with device manufacturers, chipset vendors, application teams, network teams and test partners. Drive root-cause analysis and agree practical recovery actions.
• Manage defects through triage, prioritisation, evidence capture, retest and closure. Escalate risks that could affect safety, service, schedule, cost or contractual commitments.
• Assess software, firmware, configuration and network changes for impact on approved devices and regression scope.
• Maintain accurate technical records, decisions, risks, dependencies, test results and approval evidence in the agreed delivery tools and repositories.
• Provide concise status updates and recommendations to delivery leads, governance forums and senior stakeholders.
• Support continuous improvement of device assurance processes, test coverage, tooling and ways of working.
• Build trusted working relationships across BT, the customer, suppliers and delivery partners, while protecting confidential and service-sensitive information.

Essential Skills / Experience

• Strong experience delivering or assuring mobile devices, applications or telecommunications services within a complex technical environment.
• Good technical knowledge of LTE/5G networks, including IMS, VoLTE, packet data, APNs, SIM/USIM behaviour and device-to-network signalling.
• Experience developing test plans, acceptance criteria and technical recommendations, with the ability to analyse logs, network traces, defects and test results to drive resolution.
• Strong technical delivery and stakeholder management skills, coordinating multiple teams and suppliers while effectively managing risks, issues, defects and dependencies.

Desirable Skills / Experience

• Communication skills, able to translate complex technical information for different audiences and work collaboratively within security and governance requirements.
• Experience of ESN, public safety or other mission‑critical communications services, including MCX or push‑to‑talk technologies.
• Knowledge of 3GPP standards, device conformance, interoperability and acceptance testing, ideally including UDTAS or a similar device assurance process.
• Experience working with Android devices and manufacturer diagnostic/engineering tools, with knowledge of technologies such as eSIM, Wi‑Fi, Bluetooth, emergency calling and location services.
• Experience within regulated, government, defence, emergency services or other high‑assurance environments.
• A relevant technical qualification or equivalent practical experience, with professional certifications such as ISTQB, ITIL, Agile or PRINCE2.

Our Package

You can design the package to suit you and your lifestyle. Your core benefits include:

• 10% on target annual bonus
• Access to an online private GP 24/7 for you and your immediate family
• Market-leading paid carers leave with up to 2 weeks off
• Equalized maternity, paternity, and adoption leave – 18 weeks’ full pay and 8 weeks’ half pay
• Discounted EE and BT products, including mobile and broadband
• Market leading Pension scheme – 5% from you and 10% from us
• Holiday purchase scheme

You can select additional benefits, including healthcare, dental, gym memberships and more when you’re ready.

Ready to connect for good and help shape the future?