Tower PainterHigh demand
$72k
5 years in
experienced
Tower painters ensure the integrity and longevity of electricity transmission towers by applying protective coatings that prevent rust and corrosion. They are highly specialised workers operating on live electrical assets, often in remote locations. The work is physical, specialist, and genuinely essential to keeping NZ's power grid functional.
Career switchers. People with rope access, painting or construction backgrounds have a natural advantage here. The specialist nature of the role means strong job security and steady work across the country. Other ESI roles can cross into this pathway via the Transmission Line Maintenance strand.
Entry: Must be employed in the ESI as a full-time apprentice. NCEA Level 2 Maths & English required.
How you get there
NCEA Level 2 — Maths & English
Foundation school subjects. No specific grade threshold — completion is enough to apply.
Free
Get hired as an ESI apprentice
Apply directly to lines companies and electrical contractors. Employment comes first — training follows on the job.
Paid while you train
Level 4 NZ Certificate — Transmission Line Maintenance
Delivered through Te Pūkenga. Covers rope access, height safety, tower coating and corrosion protection on live assets.
2 yearsFree — apprenticeship
Heights workRope accessCorrosion protectionSafety systemsPhysical fitness
Reality check: this role involves working at significant heights on live electrical assets. If you're comfortable with heights and physical outdoor work, the pay and job security are excellent.
Cable JointerCritical demand
$85k
5 years in
experienced jointer
$100k+
Expert
specialist / lead
Cable Jointers install, maintain, repair and connect underground power cables within the national electricity distribution and transmission networks. Work is primarily outdoors — in pits, trenches, substations and construction sites. They need excellent problem-solving skills to manage complex faults and the ability to work safely under pressure.
Career switchers. Construction, civil or electrical trade backgrounds give you a strong head start. International cable jointers are recognised after EWAB registration. Once inside, Cable Jointers commonly progress to Line Mechanic or senior specialist roles.
Entry: Must be employed in the ESI as a full-time apprentice. NCEA Level 2 Maths & English helpful but not mandatory.
How you get there
NCEA Level 2 — Maths & English
Helpful but not mandatory. Construction knowledge and ability to read technical plans is an advantage.
Free
Get hired — ESI apprentice
Apply to lines companies and electrical contractors. You earn a full wage from day one while you train.
Paid from day one
Level 4 NZ Certificate — Cable Jointing High Voltage
Te Pūkenga. Covers underground cable installation, high voltage jointing, fault detection and repair across distribution and transmission networks.
2.5 yearsFree — apprenticeship
Underground cablingHV jointingFault diagnosisSafety protocolsProblem solving
Overseas recognised: register through EWAB after 4,000 hours practical experience. NZ cable jointing qualifications are highly transportable to Australia, the UK and Canada.
Line MechanicCritical demand
$85k
5 years in
qualified mechanic
$100k+
Expert
senior / lead crew
Line Mechanics install, maintain and repair the overhead and underground electrical distribution lines that carry power from transmission networks into homes, businesses and communities across New Zealand. They respond to faults, upgrade ageing infrastructure, and connect new developments to the grid — the people who keep the lights on.
Career switchers. Recognised internationally via EWAB after 4,000 hours experience in distribution line work. Line Mechanics can upskill to Level 5 Power Technician and move into more technical specialist roles or supervisory positions.
Entry: Must be employed in the ESI as a full-time apprentice. NCEA Level 2 Maths & English helpful. Construction knowledge an advantage.
How you get there
NCEA Level 2 — Maths & English
Helpful but not mandatory. Construction skills and plan reading are a real advantage when applying.
Free
Get hired — ESI apprentice
Lines companies and electrical contractors hire apprentices directly from school. Paid from day one.
Paid from day one
Level 4 NZ Certificate — Electrical Supply, Cable Jointing HV
Te Pūkenga. Covers overhead and underground distribution lines, fault response, grid connections and infrastructure upgrades. Can progress to Level 5 Power Technician.
2.5 yearsFree — apprenticeship
Overhead linesFault responsePower pole erectionGrid connectionsH&S compliance
High Voltage ElectricianCritical demand
$105k
5 years in
HV specialist
High Voltage Electricians install, test, maintain and repair high-voltage electrical systems. Work includes diagnosing faults, performing maintenance, and ensuring compliance with strict safety protocols. Work is team-based, supportive and highly technical — requiring precision and confidence around demanding equipment.
Career switchers. Qualified general electricians need to gain ESI employment and complete the electricity supply strand of NZQA courses. International recognition requires EWAB registration and proof of 12,000 hours experience. One of the most internationally transportable qualifications in the NZ trades sector.
Entry: Must be employed in the ESI as a full-time apprentice. NCEA Level 2 Maths & English required. Ability to use hand tools essential.
How you get there
NCEA Level 2 — Maths & English
Required. General electrician experience is an advantage — qualified electricians can cross into the ESI strand directly.
Free
Get hired — ESI apprentice
Apply to lines companies. Qualified general electricians enter with a head start and can complete bridging courses into the HV strand.
Paid from day one
Level 4 NZ Certificate — Electrical Trade, Electricity Supply Strand
Te Pūkenga. High-voltage systems, fault diagnosis, maintenance and compliance. Strict H&S protocols throughout.
3.5 yearsFree — apprenticeship
HV systemsFault diagnosisCompliance testingHand toolsTeam-based work
Highest starting salary of all ESI trade roles at $77k. The specialist nature of HV work commands a premium from day one.
Electrical FitterHigh demand
$88k
5 years in
qualified fitter
$110k+
Expert
senior / specialist
Electrical Fitters install and maintain overhead power cables within the national electricity distribution and transmission networks. They erect power poles and pylons, string cables, and install underground cabling and conduits. Essential workers operating primarily outdoors in physically demanding conditions across New Zealand.
Career switchers. Construction or civil trade experience transfers well. EWAB registration required for international workers — proof of 4,000 hours distribution line work needed. Once qualified, progression to Level 5 Power Technician is a natural next step.
Entry: Must be employed in the ESI as a full-time apprentice. NCEA Level 2 Maths & English helpful. Construction knowledge an advantage.
How you get there
NCEA Level 2 — Maths & English
Helpful but not mandatory. Construction knowledge and ability to interpret technical plans gives you a real advantage.
Free
Get hired — ESI apprentice
Apply to lines companies and electrical contractors. You earn from day one while training on the job.
Paid from day one
Level 4 NZ Certificate — Electrical Trade, Electricity Supply Strand
Te Pūkenga. Covers overhead cable installation, power pole and pylon erection, underground conduit work, and conductor stringing across the network.
3.5 yearsFree — apprenticeship
Overhead cablingPower pole erectionPlan readingUnderground conduitNetwork installation
Power TechnicianCritical demand
$90k
5 years in
qualified technician
$117k+
Expert
specialist / engineer
Power Technicians specialise in the installation, maintenance and testing of complex equipment used for generating and distributing electricity. Work spans both indoor environments — climate-controlled workshops and control rooms — and outdoor sites in all weather. Highly technical, with strong analytical demands and excellent long-term earnings.
Career switchers. International recognition via EWAB requires proof of 4,000 hours Power Technician experience plus 1,000 hours on multi-phase equipment. This role is the natural bridge between trade and engineering — many move into Design Engineer roles with further study.
Entry: Must be employed in the ESI. NCEA Level 2 Maths & English required. Often entered after completing a Level 4 trade qualification inside the industry.
How you get there
Level 4 ESI trade qualification
Start as an Electrical Fitter, Line Mechanic or HV Electrician. Most Power Technicians progress from within the industry. Can also enter directly with NCEA L2.
3.5 yearsFree — apprenticeship
Level 5 NZ Certificate — Electricity Supply, Power Technician
Te Pūkenga. Specialist focus on complex generation and distribution equipment. Mix of workshop, control room and outdoor work. Can progress to NZ Diploma in Engineering.
2 yearsFree — apprenticeship
Equipment testingGeneration systemsControl room opsFault isolationTechnical reporting
Clear progression: Power Technician is the gateway to engineering. With further study via the NZ Diploma in Engineering you move into design and engineering roles above $120k.
Design EngineerHigh demand
$60k
Starting out
graduate role
$100k
5 years in
registered engineer
$140k+
Expert
principal / lead
Design Engineers plan and develop systems for the generation, distribution and use of electricity — ensuring they are safe, reliable and efficient. Work focuses on large-scale infrastructure: power grids, substations and transmission lines. They create schematics, select components, conduct simulations and troubleshoot installed designs.
Career switchers. International BE degrees are recognised through the Washington Accord — check via the International Engineering Alliance and get a credential assessment from Engineering New Zealand. EWRB registration is required to practice in NZ. Experienced Power Technicians commonly pursue this path via the Diploma route while working.
Entry: Diploma pathway needs 48 NCEA L2 credits including Maths. Degree pathways require NCEA L3 Physics & Maths. University Entrance required for BE(Hons).
How you get there
Choose your entry pathway
Three options depending on your qualifications — Diploma (fastest, lowest cost), BEngTech, or BE(Hons) for the highest earning potential.
Level 6 NZ Diploma in Engineering
Te Pūkenga. Fastest and most affordable path into engineering. Entry with 48 NCEA L2 credits including Maths.
2 years~$16,000
Bachelor of Engineering Technology (BEngTech)
University. 3-year applied engineering degree. NCEA L3 Physics & Maths required.
3 years~$30,000
Bachelor of Engineering (Honours)
University. Full professional engineering degree. Highest earning ceiling. Washington Accord recognised internationally.
4 years~$40,000
Electrical designGrid systemsCAD / simulationProject managementFault analysis
Diploma first: the NZ Diploma is a fast, affordable entry to engineering. Many use it to get into industry, then pursue further qualifications part-time while earning.
Field Team SupervisorHigh demand
$70k
Starting out
new supervisor
$105k
5 years in
experienced supervisor
$143k+
Expert
senior / operations
Field Team Supervisors manage field crews, ensuring safe, compliant and efficient installation and maintenance of network lines, cables and substations. They coordinate resourcing, perform on-site audits, oversee safety culture and ensure technical compliance with industry regulations — the operational backbone of any lines company.
Career switchers. International workers must have their foundational trade qualification formally recognised via NZQA International Qualification Assessment before applying for supervisor roles. This position is almost always reached through internal promotion — the best route in is through an ESI trade apprenticeship.
Entry: This role is earned from within industry — several years of field experience plus a foundational ESI trade qualification required. Not a school-leaver entry point.
How you get there
Complete a core ESI trade qualification
Electrical Fitter, HV Electrician or Line Mechanic. This is your foundation. Most supervisors spend 5–10 years in the field first.
3–4 yearsPaid throughout
Build field experience
Demonstrate leadership, safety knowledge and crew coordination. Employers identify supervisory candidates from within their teams.
5–10 years experience
Supervisor endorsement — EWRB + employer leadership training
Gain Supervisor endorsement from the Electrical Workers Registration Board. Complete employer-prescribed management and leadership training.
Employer-led
Crew leadershipOn-site auditingH&S complianceResourcingTechnical oversight
Highest ceiling in the trades: at $143k+ this is one of the best-paid trade leadership roles in NZ — reached entirely without a degree.