Chief Operating Officer

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C4C office and laboratory (Nottingham)
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Full time / Permanent

Job Title: Chief Operational Officer

Location: Nottingham, office-based

Remuneration: £100,000 - £130,000 (dependent experience, track record and capability). Share options: up to 1%

Start date and end date (approx): This is a permanent position and is available for immediate start. (Flexible on start date based on notice period)

About us:

Concrete4Change (C4C) is a R&D company that is developing a ground-breaking technology to utilise and permanently mineralise CO2 in concrete. To date, C4C raised £4.5 million from private and public investors. The company is partly owned by two of the largest concrete manufacturers in the world, Siam Cement Group ($17 billion turnover) and Goldbeck GmbH (€7 billion turnover).

C4C technology won a wide range of awards including:

2021, The most innovative Net-Zero project from UN COP26 Climate Challenge Cup

2021, SDG award from the European technology chamber

2022, Top 10 startups from Royal Academy of Engineer (£20k)

2022, Santander X Prize – Global Countdown to Net-Zero (worldwide)

2022, Top 50 start-up award from PWC

2023, Startups 100 2023 Award Winner

2023, Hard Tech Investment of the Year from UK Business Angel Association

Job description:

Please consider this position is designed for an entrepreneur and is not a 9-5 job.

As the COO, you have an entrepreneurial mindset and will act as a deputy to the Chief Executive to oversee and manage the efficiency of our operations. You will work with the executive team to identify opportunities for innovation, analyse market trends, and ensure that their technology is aligned with the core business objectives.

Person’s specifications


  • Extensive experience in daily operations of fast growing startups, including human resources, legal, fundraising, marketing, manufacturing, accounting, IT and other departments
  • More than 7 years of experience in executive leadership roles or start-up C-Suite management.
  • Experience in hiring, coaching, and performance management.
  • Excellent project management skills, with a track record of successfully delivering projects on time and within budget.
  • Experience of business planning, data analysis and fundraising
  • Demonstrated ability to work collaboratively in a cross-functional environment and build effective relationships with internal and external stakeholders and investors.
  • Ability to diagnose problems quickly and foresee potential issues


  • Experience and deep understanding of characterisation methodology development of complex systems of organic and inorganic materials including polymers, and solid adsorbents
  • R&D experience in the field of carbon capture, chemistry or construction.
  • Understanding of laboratory setup, HSE requirements, experience in equipment specification development and procurement
  • Knowledge of funding mechanisms, grant applications, and collaboration opportunities within the R&D sector.
  • Experience of working in deep tech start-ups is highly desirable
  • C-suite or founder experience at a VC backed startup is highly desirable


C4C is seeking people who want to do applied science, with an entrepreneurial spirit and use their skills to build a sustainable world.

  • A unique opportunity to work with top researchers across the world
  • An exciting opportunity to work with construction and develop technologies for multi-billion pound cement and concrete companies
  • Private health insurance
  • Government-backed pension scheme
  • A competitive bonus upon achieving milestones
  • Regular team meals and social events

Next Steps:

To apply please send a copy of your CV and cover letter to

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