Sub Agent

Blackwell Earthmoving Limited; Aylesbury; On-site; GBP 65,000 - 90,000; Full time

Job summary

Blackwell Earthmoving Limited, part of Hargreaves Services Plc, delivers large-scale bulk earthworks and land restoration with precision. As Sub-Agent, you will lead a major section of the HS2 programme, directing a high-performing engineering team to ensure safety, quality and efficient delivery of earthworks on complex infrastructure schemes.

You will develop mass-haul and seasonal work plans, oversee constructability reviews, align with Commercial and Planning teams, and mentor junior

Qualifications

• Experience leading engineering teams on large-scale infrastructure projects.
• Strong understanding of health, safety and quality standards.
• Civil engineering degree and progression toward ICE accreditation.
• Excellent organisation and problem-solving abilities.

Responsibilities

• Lead and mentor the engineering team, providing clear direction, technical guidance, and support to ensure safe, efficient, and high-quality delivery across all activities.
• Develop and manage detailed mass-haul and seasonal work plans, ensuring accurate forecasting, resource allocation, and alignment with programme milestones.
• Oversee constructability reviews, sequencing strategies, and temporary works planning, identifying risks and implementing effective mitigation measures to maintain progress and safety.
• Collaborate closely with Commercial and Planning teams, monitoring costs, schedules, and productivity to ensure financial and programme targets are achieved.
• Provide technical expertise and professional development opportunities to junior engineers, fostering a culture of continuous improvement and knowledge sharing.

Skills

Leadership

Civil engineering

Project management

Health & safety

Communication

Education

Civil Engineering degree

Job description

At Blackwell Earthmoving Limited, part of the Hargreaves Services Plc., we deliver large-scale bulk earthworks, soil stabilisation, and land restoration with precision and expertise.

As a trusted partner on nationally significant projects including HS2, Sizewell C, and the Lower Thames Crossing we bring unrivalled capability to complex infrastructure schemes. From highways and rail networks to renewable energy developments, our solutions combine engineering excellence with environmental responsibility, creating sustainable foundations for future growth.

As Sub-Agent, you will lead the delivery of a major section of bulk earthworks and formation within the HS2 programme. Managing and developing a high-performing engineering team you will provide leadership and technical guidance to ensure safety, quality, and efficiency at every stage of the project.

What you’ll be doing

• Lead and mentor the engineering team, providing clear direction, technical guidance, and support to ensure safe, efficient, and high-quality delivery across all activities.
• Develop and manage detailed mass-haul and seasonal work plans, ensuring accurate forecasting, resource allocation, and alignment with programme milestones.
• Oversee constructability reviews, sequencing strategies, and temporary works planning, identifying risks and implementing effective mitigation measures to maintain progress and safety.
• Collaborate closely with Commercial and Planning teams, monitoring costs, schedules, and productivity to ensure financial and programme targets are achieved.
• Provide technical expertise and professional development opportunities to junior engineers, fostering a culture of continuous improvement and knowledge sharing.

What We’re Looking For

• Experience in civil engineering or construction management, ideally on large-scale infrastructure projects involving earthworks.
• Proven leadership skills, with the ability to manage and develop engineering teams.
• Understanding of health, safety, and quality standards, ensuring compliance across all site activities.
• Excellent organisational and problem-solving abilities, capable of delivering in a fast-paced environment.
• Effective communication and stakeholder management skills, with experience coordinating multidisciplinary teams.
• Relevant qualifications, such as a Civil Engineering degree, and ideally working towards ICE professional accreditation.

Who We Are

At Hargreaves Services Plc, we’re not just a contracted services provider – we’re shaping the future of UK industry.

As a trusted partner to the UK’s infrastructure markets, we deliver solutions that accelerate development and drive industrial transformation.

From clean energy and environmental innovation to land regeneration, logistics, and low-carbon material supply, our contracted services drive economic growth while building a sustainable legacy for generations to come.

Our Vision

Our vision is to be the leader in the provision of contracted services in the next era of UK infrastructure development; we support growth in the Connectivity, Clean Energy, and Environmental sectors.

Our proven expertise and ability to deliver bespoke, high-quality services set the benchmark for excellence in UK infrastructure. Powered by a growing, inspired team and bold growth strategies - both targeted and organic - we’re positioned to play a defining role in shaping the nation’s future.