Join Our Team

We are a multidisciplinary practice with backgrounds in engineering, architecture and environmental science. We work as consultants for buildings, large developments and masterplans and provide carbon management advice for businesses. Our diverse experience and in-depth technical knowledge position us to provide exceptional added value to design teams, developers and corporate clients, working as lead consultants, engineers or sustainability champions overseeing the client’s project goals.

Our Core Values:

Build Relationships
We listen to and understand our collaborators to focus on their needs and build long-term sustainable relationships.

Think Creatively
We think and act differently; we encourage curiosity, innovation and learning to push the boundaries of our industry.

Be Fair
We operate fairness and transparency in everything we do; we are fair to each other, to our collaborators and the environment.

Work Together
We work collaboratively with each other and with our clients to build quality solutions that are unique to their needs.

Working at XCO2

We value and appreciate the benefits of a positive work environment and that is why our team benefits from flexible office hours, regular team socials and events, annual Christmas trips (usually abroad), CPDs, mental health and wellbeing support, and progressive maternity and paternity leave. Apply today for a role at XCO2.

Diversity and Equality:

At XCO2, we are committed to valuing diversity and we seek to provide all staff with the opportunity for employment, career and personal development. We are very proud of our diverse and dynamic team, with 50% of our London office made up of female staff compared to an industry average of 12% (Engineering UK, 2018).

Senior Environmental Consultant

We are seeking a Senior Environmental Consultant to join our team in the London office.

Day-to-day responsibilities:

  • Project management
  • Delegating work to Intermediate and Junior staff members
  • Supporting the Director or Associate in resource planning for the team
  • Leading and client-facing key projects
  • Maintaining client relationships
  • Overseeing the output of junior and intermediate team members who are supporting your projects
  • Reviewing work
  • Deliver knowledge of the relevant Industry Standards, British Standards, Building Regulations and UK planning process to clients and colleagues
  • Begin to develop new opportunities with new and existing clients
  • Supporting preparing & development of proposals and scopes of work


  • Technical ability – Strong technical ability across the Environmental Team services.
  • Ownership – Take ownership over projects, clients and non-project tasks that have been delegated to them. Thoroughness throughout the delivery of a project or non-project task.
  • Commercial acumen – are client/delivery aware and focussed, look to develop opportunities where possible.
  • Proactive – have the drive and ambition to take on responsibility or develop and opportunity without the prompt of senior leadership.
  • Professional maturity – understand what clients need and able to communicate with design teams and clients in an appropriate manner. Understands the contribution all projects have to the company’s commercial or ethical goals, treating them with their due importance, regardless of personal interest.
  • Organisation – strong organisational skills in tracking their own work and work on projects that they lead. Aware of deadlines and project budgets and plan appropriately for them. Good project time management.
  • Communication – clear and concise internal and external communication that is tailored to the audience.
  • Industry presence – takes an interest in the industry and promoting our business and services within it.
  • Experience – experienced at dealing with architects and clients, attending design team meetings and delivering quality work on time and on budget.

For consideration, please forward your CV and portfolio, along with a cover letter to, quoting Senior Environmental Consultant in the subject line.

Environmental Consultants

We are seeking Environmental Consultants to join our growing team of specialist low-carbon consultants and engineers in the London office.

Day-to-day responsibilities:

  • Project management
  • Sustainability certification – BREEAM, Code for Sustainable Homes and LEED pre-assessments and full assessments
  • Low and zero-carbon technologies feasibility studies
  • Energy and sustainability statements for planning
  • SAP, SBEM, Part L assessments, involving thermal simulations
  • Daylight and Sunlight assessments and Rights to Light
  • Wind Modelling
  • Supporting Junior team members with day-to-day work activities
  • Writing concise technical and planning reports that identify key findings and make clear recommendations to clients backed up with the associated energy, CO2 and cost savings
  • QA review of own work and Junior Consultant’s work and calculations
  • Maintaining communication with line manager and directors, keeping them informed of progress and seeking assistance to address project delivery and client issues
  • Active participation in design team and client meetings
  • Managing own time: estimating resource required to complete tasks assigned, ensuring delivery to project deadlines with a thorough understanding of clients’ expectations.


  • Communication – Excellent written and oral communication skills and capable of presenting ideas clearly
  • Drive – Highly motivated, pro-active, enthusiastic and ambitious
  • Client awareness – understanding of client’s/architect’s priorities and ultimate goals; contributor to client satisfaction
  • Commercial awareness on project fees, cost/resources to deliver work and potential for related future opportunities
  • Industry knowledge – Demonstrate knowledge of the relevant Industry Standards, British Standards, Building Regulations and UK planning process.
  • Technical knowledge – Understanding and proficiency with Microsoft Office applications, AutoCAD and MBS, Stroma (SAP), IES Virtual Environment Software (SBEM, CIBSE Loads and dynamic simulation), InDesign and Illustrator (optional)
  • Design Team Experience – Experience with dealing with architects and clients, and attending design team meetings
  • Project management – Ability to manage own work and deliverables independently, seeking support from Senior Consultants, Technical Experts and Team Leaders where necessary.

For consideration, please forward your CV and portfolio, along with a cover letter to, quoting Environmental Consultant in the subject line.