Senior Electrical Engineer – HV Cable Design

TLI Group; Dublin; Hybrid; EUR 75,000 - 110,000; Full time

Benefits offered by this job

23 Days annual leave

Maternity Benefit

Flexible working

Sick pay after probation

Career Pathway Programme

Job summary

TLI Group seeks a Senior Electrical Engineer to lead HV cable design for MV/HV underground systems connected to the Irish grid. You will deliver feasibility through detailed design, applying EirGrid/ESBN standards and coordinating across civil, substation, and planning interfaces.

The role involves routing, trench design, and equipment selection, with emphasis on ensuring safety, quality, and timely project delivery within a growing engineering team.

Qualifications

• Degree in Electrical Engineering (Level 8 or higher).
• Chartered Engineer with Engineers Ireland or working toward.
• Strong understanding of HV power systems and cable installation.

Responsibilities

• Cable system engineering: ampacity, thermal performance, and HDD considerations.
• Civil & route design: trench layouts, joint bays, HDD profiles.
• Standards & compliance: EirGrid/ESBN and IEC guidance.
• Planning support: route reports and environmental inputs.
• Interfacing with internal/external teams for grid connections.
• Procurement & construction input: material take-offs and FATs.
• Deliverables: ratings, routes, drawings, and procurement specs.

Skills

HV cable design

Cable modelling CYMCAP

CAD/GIS tools

Project coordination

HV power systems

Education

Electrical Engineering Degree (Level 8+)

Chartered Engineer (CEng) or progressing

Tools

CYMCAP

CAD

GIS tools

Job description

Senior Electrical Engineer – HV Cable Design

Vacancy ID: VN4101

Job Location: Dublin

Description

As part of the growing Engineering Team here at TLI Group we are currently recruiting for a Senior Electrical Engineer with a focus on High Voltage Cable Design Engineering.

The purpose of the role is to deliver engineering design for MV and HV (20kV – 400 kV underground cable (UGC)) systems forming part of grid connections to the Irish transmission system (EirGrid) and distribution system (ESB Networks). The role covers feasibility, concept, planning, and detailed design, ensuring compliance with Irish and international standards, functional specifications, and project‑specific constraints.

Package

• Competitive rates of pay.
• 23 Days annual leave.
• Maternity Benefit
• Flexible working
• Sick pay after completion of probation.
• Take part in our “Career Pathway Programme”, where there is an emphasis on training & career development.
• Opportunity to progress your career within a growing company.
• Voluntary Pension available on completion of probation.
• Employee membership for our LAYA EAP Programme – 24/7 Mental Wellbeing Support & Employee Assistance Programme.
• Health Insurance Discount.
• Life Assurance Payment.
• Standard industry training provided.

Key Responsibilities

Cable System Engineering

• Perform cable rating studies (IEC 60287, project‑specific functional specifications) including ampacity, thermal performance, derating, HDD sections, crossings, and constrained urban environments.
• Develop cable system design, including:
• Cable sizing and material selection (10/20/33/38/110/220/400 kV)
• Sheath bonding concepts, earthing system coordination, accessory selection.
• Cable pulling calculations, sidewall pressure checks, installation feasibility.

Civil & Route Design

• Lead route selection, constraints mapping, and feasibility analysis considering:
• Existing utilities, Irish Rail, TII restrictions, environmental designations (SAC/SPA/NHA), heritage, watercourses, and road classifications.
• Produce cable trench layouts, joint bay locations, cross‑sections, HDD profiles, and reinstatement details to EirGrid/ESBN and TII specifications.
• Define wayleave widths, access track requirements, and construction sequencing relevant to UGC installations.

Standards & Compliance

• Ensure full compliance with:
• EirGrid Functional Specifications (e.g. CDS‑GFS‑00‑001 series: cable materials, civil works, installation).
• IEC standards relevant to HV cable design (e.g., IEC 60287, bonding/earthing guidance).
• ESB Networks distribution/connection specifications where applicable (20/38 kV works feeding into HV assets).
• HSA Code of Practice for avoiding danger from underground services.

Planning Support

• Prepare planning design packages: trench drawings, route reports, constraints analysis, cross‑sections, environmental inputs and substation‑interface info.
• Provide technical input to EIAR/PECR scoping, route justifications, and alternatives assessments (as required by Irish planning processes).

Interfacing & Coordination

• Interface with internal Substation, Civil, OHL design teams as well as external Planning / Environmental consultants for integrated grid connection design.
• Liaise with EirGrid/ESBN engineers during design reviews and Stage Gate processes
• Support client/TSO/TAO queries during design reviews, tendering, and construction readiness.
• Lead / participate in stakeholder and client‑facing project meetings (e.g. Renewable developers, Local Authorities, ESB Networks, GNI, Iarnród Eireann, landowners etc)

Procurement & Construction

• Input into TLI Group tendering, procurement and construction departments,
• Prepare material take off sheets for construction projects,
• Attend / witness cable FATs, installation and in-situ testing activities

Deliverables

• Typical deliverables include:
• Cable rating reports (thermal/ampacity analysis).
• Cable route feasibility studies and constraints reports.
• Planning design drawings (trench details, joint bays, HDD, reinstatement).
• Detailed design packages for tender & construction.
• Bills of quantities, technical schedules, and procurement specifications.

Qualifications & Skills

Education & Skills

• Degree in Electrical Engineering (Level 8 or higher).
• Chartered Engineer (CEng) with Engineers Ireland or equivalent (or working toward).
• Strong understanding of HV power systems, UGC thermal design, and cable installation engineering.
• Proficient in cable modelling software (e.g., CYMCAP or equivalent).
• Proficient in CAD/GIS tools

Experience

• 3+ years (Engineer) or 7+ years (Senior Engineer) in HV cable design for MV and HV networks.
• Proven experience delivering Irish MV & HV grid connection projects at feasibility, planning, and detailed design stages.
• Familiarity with:
  • EirGrid/ESBN design standards and functional specifications.
  • HDD design constraints, trench design, joint bay optimisation.
  • Working within multidisciplinary grid delivery teams.
• Experience with substation interface design (sealing ends, fibre, protection/metering boundaries).
• Knowledge of deep/micro‑bore tunnelling in constrained environments.
• Ability to prepare cost estimates, risk assessments and method statements.
• Strong stakeholder and client‑facing communication skills.