Hemiko
Senior Plant Engineer
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Senior Plant Engineer Role
**Hemiko are recruiting for a Senior Plant Engineer reporting to the Technical Manager.
The successful candidate will be responsible for delivering operation and maintenance services across our fleet of heat networks. We are looking for someone who is willing to work towards a valid commercial gas certificate, with experience in servicing and repairing commercial Plant equipment.
Experience maintaining and operating non-gas commercial plant, e.g., pumps, valves, and strainers, would be beneficial. The role will involve a variety of tasks, including:
- Mechanical planned preventative maintenance (PPM)
- Reactive call-outs
- Planned repairs
- Project work to improve reliability and network efficiency
About the Role
We are seeking an experienced engineer with at least 2 years of relevant experience working in Plant rooms (excess of 1MW), who upholds knowledgeability, reliability, and strong adaptability. This role contributes to Hemiko’s safe, supportive, and innovative work culture.
Flexibility in working arrangements is essential for wellbeing. If this is important to you, applicants are encouraged to highlight this during the application process.
About Hemiko
Hemiko is a fast-growing, innovative business pioneering low-carbon district energy networks and building energy systems. We fund, design, build, operate, and maintain sustainable heat networks for communities across the UK.
Our Mission
We aim to drive town- and city-scale decarbonisation, replacing outdated systems with modern, low-carbon solutions. Part of our investment involves upgrading existing gas-operated district heating networks into fully low-carbon systems.
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Our Projects
- Clapham, London: Heating 3,500 homes as part of a major regeneration.
- Cardiff City Centre: A new low-carbon district heating system for the entire city.
- South London: A ground-source heat pump system providing heating and cooling for 300+ homes and facilities.
- Cambridgeshire: A heat network replacing oil boilers in 300 rural homes.
- Long-Term Decarbonisation Planning: Transitioning large-scale CHP networks to low-carbon generation.
We are innovative, design-led, and proactive, seeking solution-focused individuals to evolve with us.
Culture & Benefits
A collaborative, inclusive workplace fostering strong teamwork while encouraging novative thinking. • Equal opportunities employer—all backgrounds and experiences welcomed. • Armed Forces friendly—supporting ex-service personnel. • Career growth in a fast-paced sector with development opportunities.
Key Workplace Benefits
- Competitive salary: £32,500–£42,500 (based on experience).
- Performance-based discretionary bonus.
- 25+ statutory holidays per year (additional options).
- Pension scheme & private healthcare.
- Cycle-to-work scheme & Electric Vehicle lease.
- Continuing learning and development.
- Wellbeing support & flexible work arrangements.
The Role
As a Senior Plant Engineer, your core key responsibilities include:
- Daily Operations:
- Perform PPMs for pumps, actuators, heat exchangers, pressurisation units, and degassers (following company schedules).
- Repair faults in commercial plant (pumps, pipework, valves).
- Attend reactive call-outs for on-site troubleshooting and reinstatement.
- Participate in the on-call rota (1 week in 4).
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Maintenance & Administration:
- Root cause analysis for plant failures.
- Site-based project work & development of scope of works.
- Safe isolation procedures before maintenance.
- Basic faults diagnosis on heat interface units (HIUs).
- Water sampling & dosing on-site.
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Development & Team Contribution:
- Mentor new engineers.
- Work autonomously (or provide technical support).
- Cover breakdowns nationwide (UK wide deployment).
Requirements & Qualifications
Experience & Knowledge
- 2+ years as a Commercial Plant Engineer (or equivalent).
- NVQ Level 3 qualification in Gas/Plumbing.
- Proficiency in:
- Reading P&IDs (Piping & Instrument Diagrams) & mechanical schematics.
- Basic electrical competency (safe isolation of both mechanical & electrical systems).
- Valid UK driver’s licence (12+ months).
Apply or Request Further Details
To apply:
- Submit an online application via BambooHR.
For an informal discussion, contact:
- Dan Blake: Field Service Manager — Dan.Blake@hemiko.com
- Toby Powell: Operations Director — Toby.Powell@hemiko.com
Company ethos: Handled with honesty, collaboration, and relentless drive for efficiency—avoiding bureaucratic silos. A fast-growing sector with limitless career potential.
Study your rest. We’re building lower-carbon futures.
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