Network Circuit Designer

We have an exciting job opportunity for Network Circuit Designer role at Glasgow, UK - Contract

Role: Network Circuit Designer

Duration: Contract

Location: Glasgow, UK

Key Responsibilities:

• EAD circuit design: Design Ethernet Access Direct/leased-line/carrier Ethernet access circuits for SPEN substation locations.
• Access feasibility: Review whether proposed circuits are technically feasible based on site type, BT/Openreach survey outputs, routing, access node/cabinet location and local constraints.
• BT/Openreach coordination Interpret BT/Openreach survey notes, site classifications, delivery assumptions and circuit provisioning constraints.
• EMI/EMC assessment: Identify design implications arising from electromagnetic interference and EMC requirements in substation environments.
• EPR risk awareness: Consider Earth Potential Rise implications and ensure high-risk sites are appropriately flagged for specialist assessment or design treatment.
• Fibre/copper assessment: Assess whether copper-based access is suitable or whether fibre-only/alternative access should be considered due to site conditions.
• Cabinet integration: Review cabinet and rack requirements, including 45U EMC cabinets, ventilation, extractor fans, air filters, EMC inlet filters, gland plates, cable entry and site-specific colour/specification requirements.
• Design documentation: Produce practical HLD/LLD/implementation design packs suitable for engineering, installation, commissioning and operational handover.
• PT task mapping: Review SPEN PT task sheets and translate task-level requirements into circuit, cabinet, material and implementation design requirements.
• Supplier support: Engage with cabinet suppliers and telecoms suppliers to confirm that manufactured solutions meet SPEN/Vodafone technical requirements.
• Delivery risk management: Identify design gaps, site-readiness issues, ordering risks and installation blockers early.
• AILS/handover readiness : Ensure designs include the information required for Acceptance Into Live Support, including as-built details, circuit references, inventory records and support notes.
• Stakeholder engagement: Work closely with Vodafone design authority, delivery managers, SPEN stakeholders, field engineers, commissioning engineers and suppliers.

Required Skills and Experience

• Hands-on experience designing BT/Openreach EAD, Ethernet access, leased line or carrier Ethernet circuits
• Strong understanding of BT/Openreach delivery life cycle, including survey, order validation, civils, provisioning, wayleaves and site readiness
• Experience producing telecoms access design packs, HLDs, LLDs, implementation diagrams or as-built documentation
• Ability to interpret site surveys, task sheets, supplier notes and technical constraints
• Experience working with fibre access design and circuit routing
• Understanding of copper access limitations in electrically sensitive or high-voltage environments
• Awareness of electromagnetic interference, EMC requirements and their impact on telecoms design
• Awareness of Earth Potential Rise and why it affects telecoms delivery into substations
• Experience supporting telecoms delivery into substations, utilities, rail, power, industrial or other controlled environments
• Knowledge of telecoms cabinet/rack requirements, including EMC cabinets, gland plates, filters, ventilation and cable entry
• Experience coordinating with BT/Openreach, field engineers, commissioning teams and equipment suppliers
• Strong documentation discipline and ability to produce clear implementation-ready design outputs

Technical Knowledge Required

The candidate should understand or be able to work confidently with:

• EAD/Ethernet access: EAD circuit topology, NTE, access handoff, demarcation, access routing and carrier Ethernet delivery.
• BT/Openreach process: Survey outputs, order validation, route feasibility, access constraints, civils dependencies and delivery risk points.
• Substation environments: Access restrictions, safety constraints, electrical interference, cabinet requirements and site-specific engineering controls.
• EMI/EMC: How electromagnetic interference affects cable routing, copper usage, shielding, filtering and cabinet specification.
• EPR: Why Earth Potential Rise creates risk and when specialist assessment or design escalation is required.
• Fibre vs copper: Practical design implications of copper-based versus fibre-based delivery in high-voltage/EMI-sensitive locations.
• Cabinet design: EMC rack/cabinet standards, 45U cabinet considerations, fan/extractor requirements, air filters, EMC inlet filters, gland plates and cable entry.
• Design documentation: HLD, LLD, implementation pack, as-built pack, BoM, circuit inventory and AILS handover information.

Deliverables Expected

• Site-level EAD circuit design: Design for each assigned SPEN site or task.
• Circuit feasibility assessment: Confirmation of whether proposed access design is viable, with risks and assumptions clearly captured.
• HLD/LLD pack: Practical design documentation for delivery and implementation teams.
• Cabinet/rack requirement validation: Confirmation that cabinet design meets required EMC, ventilation, cable entry and site requirements.
• BoM/task mapping: Mapping of SPEN PT task requirements to materials, circuit components and implementation activities.
• Risk and issue log: Early identification of EMI, EPR, copper/fibre, survey, site-readiness, supplier or installation risks.
• As-built/handover inputs: Circuit references, diagrams, inventory updates and support notes for AILS.