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Sub Agent

Experienced Sub Agent (Freelance) - London Civil Engineering Projects We are seeking a freelance Sub Agent with major civil project experience to join a highly regarded Tier 1 contractor. This is a long-term contract…

Inside IR35 Engineering
Contract type Contract
Posted 8 July 2026

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About this contract

Experienced Sub Agent (Freelance) - London Civil Engineering Projects

We are seeking a freelance Sub Agent with major civil project experience to join a highly regarded Tier 1 contractor. This is a long-term contract working on significant civil works, offering a stable and rewarding opportunity.

Looking for candidates with rail, highways, utilties or aviation experience.

If you'd like to secure a long-term freelance role with a top-tier contractor and a great team, this could be the role for you.

This role is inside of IR35 so you will need to be Randstad PAYE or Umbrella PAYE.

Roles and responsibilities:

Joining a strong, collaborative team and working with an excellent client, you will be crucial to the early stages of our projects. Your key responsibilities will include:

Creating detailed methodology and constructability reports

Conducting and overseeing on-site surveys

Contributing to the pre-construction process to ensure project success

Collaborating closely with project management and on-site teams

Candidate requirements:

We need a proactive professional who is ready to hit the ground running. You should have:

Proven experience as a freelance Sub Agent, ideally within a pre-construction and civil works setting

A solid background in the rail sector

The ability to produce high-quality technical reports

A long-term mindset, ready to commit to a substantial contract

The flexibility to work from our London office three days a week and from home for the remaining two

A valid CSCS card, SSSTS or SMSTS

If you are interested in this role, or are a Civil Engineer looking at your career options, then please contact Morgan Butcher at Randstad CPE on (phone number removed).

Alternatively, if you know someone who may be interested we offer a £200 referral fee for successfully placed candidates.

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.

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

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

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