Lead Maintenance Engineer

Randstad Construction and Property; City Of London; On-site; GBP 50,000 - 61,000; Full time

Job summary

Randstad UK is seeking a Lead Maintenance Engineer for a single-site, City of London location. You will own all building services infrastructure, ensure statutory compliance and drive plant reliability with a strong HVAC and BMS focus.

Role requires autonomous delivery on a high-spec commercial site, management of safety documentation, and coordination with specialist contractors. Salary circa £55,000 plus overtime.

Qualifications

• Senior-level on-site maintenance leadership for a critical asset
• Strong HVAC and cooling system diagnostic and maintenance capabilities
• Experience with building management systems (BMS) for optimisation and control
• F-Gas Certification and knowledge of electrical regulations (desirable)

Responsibilities

• Autonomous maintenance delivery and plant resilience across electrical, mechanical, plumbing, and building fabric assets
• Oversee HVAC infrastructure including chillers, AHUs, FCUs, VAVs and DX/VRF units
• Conduct root-cause analysis to deliver first-time fixes and minimise downtime
• Operate and interrogate BMS to balance comfort and energy targets
• Manage site health & safety RAMS and PTW processes
• Oversight of subcontractors and verification of safety and quality during handover

Skills

Single-site autonomy

HVAC expertise

BMS experience

Education

Level 3 or equivalent in HVAC/Building Services

F-Gas certification (desirable)

Job description

Job Title

Lead Maintenance Engineer

Location

City of London

Working Hours

Monday - Friday, 08:00 - 17:00 (40 hours per week) + Overtime

Salary

£55,000

Role Purpose

Operating as an autonomous, site-based specialist on a single-person site, you will take 100% operational ownership of all building services infrastructure, statutory compliance, and plant reliability. Combining a versatile multi-skilled engineering foundation with in-depth HVAC and cooling systems expertise, you will lead technical delivery from the front.

Key Responsibilities

• 1. Autonomous Maintenance Delivery & Plant Resilience
• Total Plant Stewardship: Act as the sole resident technical lead responsible for the delivery of all Planned Preventative Maintenance (PPM) routines and reactive repairs across electrical, mechanical, plumbing, and building fabric assets in strict alignment with SFG20 standards.
• HVAC & Cooling Systems Governance: Directly oversee, service, troubleshoot, and fine-tune primary and secondary HVAC infrastructure, including central chillers, Air Handling Units (AHUs), Fan Coil Units (FCUs), Variable Air Volume (VAV) boxes, DX split/VRF air conditioning units, and heat recovery circuits.
• Rapid Fault Diagnosis: Conduct methodical, root-cause diagnostic investigations across heating, ventilation, cooling, and power distribution systems to deliver swift first-time fixes and guarantee zero downtime across executive trading floors and meeting suites.
• Building Management System (BMS) Optimisation: Actively operate and interrogate the BMS front-end (e.g. Trend, Schneider, Tridium) to balance occupier comfort, seasonal plant switching, ventilation rates, and energy efficiency targets.
• Multi-Skilled Support: Execute general building services tasks with equal care, including domestic water monitoring, basic electrical repairs, lamp/ballast replacements, emergency lighting function tests, and minor fabric touch-ups.
• 2. Statutory Compliance, Health & Safety
• 100% Audit Readiness: Hold personal accountability for maintaining the building's physical and digital compliance logbooks in pristine, audit‑ready condition at all times (including ACoP L8 water hygiene, F‑Gas registers, emergency lighting, fixed wiring, and fire alarm routines).
• Safe Systems of Work (SSoW): Author, review, challenge, and enforce dynamic Risk Assessments and Method Statements (RAMS) for all site activities, championing an uncompromising safety‑first culture.
• Safe Isolations & Permitting: Manage and govern the site Permit to Work (PTW) system, personally conducting safe isolations (LOTO) for high‑risk electrical, pressure, or mechanical interventions.
• 3. Specialist Supply Chain & Contractor Governance
• Subcontractor Management: Act as the primary technical point of contact for third‑party specialist service partners attending site (e.g. chiller major overhauls, water treatment chemists, lift maintenance, fire suppression engineers, acoustic engineers).
• Induction & Verification: Carry out strict site inductions, verify contractor competencies and insurances, inspect tool safety, issue permits, and escort technicians in critical plant rooms.
• Handover & Quality Control: Perform thorough post‑works inspections to challenge substandard workmanship and ensure full operational sign‑off before approving service job sheets.

Person Specification

• Experience & Technical Depth
• Single‑Site Autonomy: Demonstrable track record operating independently as a Lead Engineer, Resident Engineer, or Senior Multi‑Skilled Technician within a high‑specification commercial corporate headquarters, financial institution, legal firm, or critical asset.
• Strong HVAC & Cooling Pedigree: Advanced diagnostic and maintenance capabilities across commercial air conditioning, refrigeration loops, chilled water circuits, FCU/AHU maintenance, and chiller plant.
• Versatile Multi‑Skilled Capability: Balanced core capability spanning electrical, mechanical, public health, and BMS operations.
• Polished Corporate Demeanour: Outstanding interpersonal communication skills, professional presentation, and the emotional intelligence required to interact comfortably with C‑suite corporate clients.
• Qualifications & Accreditations
• Level 3 or Equivalent in a HVAC/Mechancal/Building Services
• F‑Gas Certification (Highly Desirable / Advantageous): City & Guilds 2079 Category 1 (or equivalent) F‑Gas certification.
• Electrical Regulations (Advantageous): 18th Edition IET Wiring Regulations (BS 7671).

Equality & Diversity

Randstad CPE values diversity and promotes equality. No terminology in this advert is intended to discriminate against any of the protected characteristics that fall under the Equality Act 2010. We encourage and welcome applications from all sections of society and are more than happy to discuss reasonable adjustments and/or additional arrangements as required to support your application.

Eligibility

Candidates must be eligible to live and work in the UK.

Agency Information

For the purposes of the Conduct Regulations 2003, when advertising permanent vacancies we are acting as an Employment Agency, and when advertising temporary/contract vacancies we are acting as an Employment Business.