Construction Site Manager

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FIELD

Construction Site Manager

Full-Time No working from home possible

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Your Mission

The Construction Site Manager plays a pivotal role in delivering the safe, efficient, and high-quality construction of a 200MW/800MWh Battery Energy Storage System (BESS) project. The position is focused on overseeing all site-based activities, ensuring works are executed in line with design specifications, programme requirements, and construction best practices, while effectively managing contractors, resources, and interfaces on site.

This role is central to driving construction performance, maintaining strict control of health and safety, quality, and productivity throughout all phases of the build. It supports the successful progression from early works through to commissioning by proactively managing site risks, resolving technical and logistical challenges, and fostering a disciplined, delivery-focused culture that ensures the project is completed on time, within budget, and to the highest construction standards.

Key Responsibilities

What you’ll be doing

As a Construction Site Manager, you will take full responsibility for the day to day management of site activities, ensuring all works are delivered safely, efficiently, and in line with the project programme and technical requirements. You will work directly with the Project Management Team maintaining clear oversight of progress, productivity, and quality across all construction phases.

This is a broad and varied role with the opportunity to have massive impact. Key responsibilities include:

Take full responsibility for the day-to-day management of all on-site construction activities;
Enforce high standards of health, safety, and environmental compliance across site;
Act as the primary on-site point of contact for project managers, engineers, and stakeholders;
Liaise and support the Principal Contractor (PC) to coordinate and supervise contractors, subcontractors, and trades across multiple work fronts ensuring alignment with Employers Requirements and contractual commitments;
Support and oversee PC ensuring that planning and sequence on site works ensure efficient delivery in line with the project programmes;
Collaborate and support PC for the effective management of site logistics, including access, materials, plant, and resource allocation;
Oversee civil, electrical, and mechanical installations, ensuring alignment with design specifications and contractual obligations;
Monitor progress against key milestones and take proactive action to mitigate delays;
Lead site briefings, watching briefs (as required), inspections, and audits, addressing risks and non-conformances promptly;
Ensure quality control processes are followed, including inspections, testing, and documentation;
Facilitate clear communication between all parties to resolve technical and logistical issues;
Track and report on site performance, productivity, and programme status;
Drive a culture of accountability, teamwork, and high performance on site;
Ensure the project is delivered safely, on time, within budget, and to the highest construction standards

Key Accountabilities

QHSE Leadership

Lead a “safety-first” culture and verify compliance with CDM arrangements, site rules, RAMS, Safe Systems of Work (SSOW) and Permits-to-Work (PTW).
Oversee high-risk activities: lifting plans (containers/transformers), excavations/temporary works, electrical isolations, switching coordination, hot works, working at height, confined spaces (this is not an exhaustive list).
Ensure robust controls for BESS hazards: thermal runaway mitigation, separation/segregation, ventilation and gas detection, fire strategy implementation, emergency response plan and drills, and site access protocols for containers.
Maintain environmental and community controls: noise/dust, traffic management, waste, spill prevention, drainage protection and planning condition compliance.

Construction Oversight on both BOP and BESS

Verify work is delivered to IFC drawings/specs, ITPs, hold points, and OEM installation requirements.
Focus on critical quality risks:
- BOP: civils tolerances, duct banks, cable pulls/bending radii, gland/termination workmanship, earthing continuity/resistance, P&C wiring/labels, enclosure ingress protection.
- BESS: container placement/tolerances, HVAC commissioning prerequisites, fire system installation integrity, comms/SCADA networks, auxiliary power reliability, OEM checklists completion.
Raise/track NCRs and drive corrective actions to reduce rework and protect schedule.

Programme, Progress & Interface Control

Track daily progress against schedule and 2 week lookaheads across both BESS and BOP workflows
Identify constraints early and propose mitigations.
Attend coordination meetings and ensure decisions/actions are closed out with clear owners and dates.

Contractor Governance and Change Control

Act as Fields focal point for site decisions within delegated authority; escalate risks and commercial impacts promptly.
Manage interfaces between EPC, BESS OEM, BOP contractors, TO, commissioning teams, and third parties (telecoms, security, metering).
Support change control by spotting scope deviations and ensuring approvals are documented and implemented correctly.

Commissioning, energisation & handover readiness

Support pre-commissioning and commissioning activities: walkdowns, test witnessing, SAT coordination, and system integration checks (BESS–EMS–SCADA–P&C).
Coordinate energisation readiness packs: switching plans, competencies, documentation completeness, emergency arrangements, and contingency plans.
Drive handover deliverables: punch list closure evidence, test packs, as-builts, O&M manuals, spares/warranties, training records, and completion dossiers for Operations.

Stakeholder management & site stewardship

Maintain a tidy, audit-ready site; host visits and manage close-out of findings.
Support landowner/community engagement and ensure issues are logged, responded to, and closed out.
Ensure compliance with planning conditions and local constraints.

Key Deliverables

Daily site diary and weekly progress/QHSE report (with photos).
Integrated BESS/BOP interface log, risk register inputs, and constraints tracker
Punch list / snag register (prioritised and evidenced close-out)
Commissioning & energisation readiness (“go/no-go”) packs
Handover dossier support: test results, certificates, as-builts, training and spares lists

Skills, Knowledge and Expertise

The skills you’ll need

Essential:

Proven site-based delivery experience on UK energy infrastructure with exposure to BESS and/or HV BOP works.
Strong understanding of construction sequencing across civils + electrical + controls/SCADA.
Solid grasp of CDM 2015, RAMS, PTW, and contractor management.
High-quality reporting and a completion-focused mindset (evidence-based sign-off).
Confident communicator able to challenge poor practice safely and professionally.
Full UK driving licence and willingness to travel
Demonstrable experience in reviewing Quality related documentation including QMP, ITP and raising NCRs

Desirable:

Direct experience with BESS OEM packages (PCS/inverters, EMS, container systems, fire strategy integration).
SMSTS/SSSTS; IOSH/NEBOSH.
Familiarity with TO interface processes and grid compliance context (e.g., G99).
AP/SAP experience (depending on owner model and project arrangements).

Core Competencies:

Strong operational focus with a practical approach to safety and risk management.
Ability to influence, coach, and engage teams across all levels.
Proactive mindset with attention to detail and follow-through.
Commitment to continuous improvement and building an open, learning culture.
Strong written and verbal communication skills at all level

Qualifications / certifications

Engineering or electrical qualification (apprenticeship/HNC/HND/degree) or equivalent experience;
CSCS/ECS (as applicable)
First Aid at Work (preferred)

Working Pattern and Location: Full time at site in Hartlepool with flexibility for extended hours during critical works, commissioning periods and energisation windows.

Benefits

Package Details

We’re offering a competitive compensation package, including participation in our employee share scheme which rewards all employees for the growth of the business. You’ll be awarded shares when you join, which will vest over four years - and as the business grows in size and value, so will your shares!

We value our team’s wellbeing and belonging so we invest approx £5,000 a year on a range of perks, benefits and wellbeing activities, including regular team socials and events.

Other benefits include:

Up to 10% Company wide bonus based on company performance
Hybrid working (blend of home and office working to suit individual needs)
£2,000 per year to spend on your professional development
Private medical cover with Bupa from day one with the option to add family members.
Company Pension with 8% Contribution
Enhanced parental leave, for all new parents:
- 6 months fully paid primary carer leave
- 3 months fully paid secondary carer leave
- 10 days fully paid leave for fertility treatment
Fun co-working office space in Shoreditch, London
1 month work from anywhere, for those with a travel bug
1 day green leave to do something good for the environment
free lunch once a week - a great way to get to know people in the wider team
dog friendly office, feel free to bring your pooch along
Spill: our mental health benefit allowing every Fielder access to equal and unrestricted therapy and resources
Regular, optional team socials designed to be inclusive for everyone (not just the pub goers!)
Birthday carbon offset: a gift from Field to the world to celebrate your birthday

A bit about Field

Field is an international builder, owner, and operator of renewable infrastructure. Founded by a successful entrepreneur, we have robust BESS project pipelines across the UK, Italy, Spain, and Germany, backed by a recent £200 million investment from DIF Capital Partners. Our mission is to grow internationally and develop a strong global BESS portfolio.

We are an eclectic team with diverse backgrounds, from scaling billion-dollar tech startups to building energy companies and specializing in energy markets. You'll work with fun, curious, entrepreneurial people making a real impact. We're proving batteries are a viable energy solution now. Our ambitious plans include becoming Europe's leading clean energy player and expanding beyond batteries into new assets

Our Values

Work for the team - We are friendly and approachable. We make time for each other, value diverse perspectives, and learn and grow together.
Do it right - We prioritise doing things right, never cutting corners. Safety comes first, and we consider our impact on communities and the environment. We act with integrity always.
Move fast - We’re doers. We take responsibility, deliver on promises, and get things done. FAST.
Know your stuff - We’re curious self-starters, always learning, adapting, and improving. No question is too small. We own our growth.

Read more about our values at www.field.energy

Love the sound of Field but not sure this role is right for you? Have a look at our careers page and register your CV. We are always interested in candidates who have exposure to BESS and work within the Renewable Energy space. We’d love to hear from you

Equality, Diversity & inclusion

Diverse teams make better teams. Field is committed to creating a diverse and inclusive environment which is as representative as possible of our society. All qualified applicants will receive consideration for employment without regard to age, disability, gender expression, marriage/civil partnership status, pregnancy/maternity status, race, nationality, religion or belief, or sexual orientation. We published a blog discussing our findings and learnings from our first Equity, Diversity and Inclusion survey in March 2023 which you can read here.

Still not convinced? See what our current team think about working here to find out why you should join us!