Sustainability Strategy Consultant (12 Month FTC)

Cognibox; Greater London; Hybrid; GBP 50,000 - 65,000; Full time

Job summary

A sustainability consultancy firm in London is seeking a Sustainability Strategy Consultant for a 12-month fixed term contract. This role focuses on partnering with member organizations to develop actionable sustainability strategies and embed net zero thinking into their operations. Candidates should have a degree in a related field and experience in sustainability consulting. The position promotes collaboration and requires strong strategic thinking and communication skills. The organization offers a hybrid work environment and various employee benefits.

Benefits

Enhanced Parental Leave

Generous annual leave

Healthcare Plan

Annual Giving Day

Cycle-to-work Scheme

Pension scheme with employer contributions

Life Assurance

Rewards Program

LinkedIn Learning License

Qualifications

• Demonstrable experience in sustainability consulting or strategy development.
• Proven track record of delivering impactful sustainability strategies.
• Strong verbal communication skills engaging stakeholders at all levels.

Responsibilities

• Lead the net zero strategy delivery for member organisations.
• Work with stakeholders to define sustainability visions and roadmaps.
• Analyse sustainability priorities and track execution across businesses.

Skills

Strategic thinking

Relationship building

Communication

Passion for sustainability

Education

Degree in Environmental Science, Sustainability, Business, or related field

Job description

Sustainability Strategy Consultant (12 Month FTC)

Department: Operations

Employment Type: Fixed Term Contract

Location: London, UK

Description

We see a world where we all contribute to a thriving planet and together, we are a collective force for good. The Planet Mark is a sustainability certification which recognises outstanding achievements, encourages action, and builds an empowered community of like-minded individuals. We work with businesses to rigorously measure their carbon footprint and social value, engage their staff and supply chain to unlock their knowledge and drive passion for change, and communicate their progress to build a positive brand. We help businesses put a purpose at the heart of their organisation that brings social, environmental, and economic considerations together.

Planet Mark is owned by Alcumus and sits as a stand-alone division within the Alcumus group alongside the Safe Contractor Division and the ISOQAR division. Alcumus is a successful and globally expanding enterprise with a longstanding commitment to promoting safer and more sustainable workplaces.

As a Sustainability Strategy Consultant at Planet Mark, you will work at the heart of the net zero transition, partnering directly with our members to shape and deliver meaningful sustainability strategies. Your work will help organisations move beyond ambition to action, embedding net zero thinking into business strategy, decision‑making, and operations. By translating complex sustainability challenges into clear, practical roadmaps, you will play a key role in driving measurable carbon reduction, long‑term business value, and positive environmental impact across a wide range of sectors.

What that means day to day

• Lead the delivery of the net zero strategy phase of the Planet Mark Net Zero Certification Programme for member organisations.
• Work closely with senior stakeholders and executives to define sustainability visions, motivations, and credible net zero roadmaps supported by robust business cases.
• Analyse organisational sustainability priorities, assessing how strategies are tracked, governed, and executed across the business.
• Collaborate with Planet Mark’s internal teams to incorporate the latest thinking, tools, technologies, and policy developments into strategic recommendations.
• Contribute to workshops, thought leadership, and research by sharing insights on industry trends, frameworks, standards, and best practice.

What you’ll need to be successful

To succeed in this role, you will need to combine strong strategic thinking with the ability to build trusted relationships and communicate complex ideas clearly. You will be comfortable working independently while also collaborating across multidisciplinary teams, and you will bring a genuine passion for sustainability and driving positive environmental change.

Essential qualifications and experience

• A degree in Environmental Science, Sustainability, Business, or a related field.
• Demonstrable experience in sustainability consulting or sustainability strategy development.
• A proven track record of developing and delivering sustainability or net zero strategies that create tangible impact.
• Strong verbal communication skills, with confidence engaging stakeholders at all levels in both in‑person and virtual settings.
• Excellent written communication skills, with a clear, concise, and detail‑oriented approach.

What you'll get in return

We operate a hybrid workplace policy, where you will work from the office 3 days per week. We want you to be able to do your best work here. We emphasize providing many ways to support our team to do their best work and below are some of the perks and benefits we offer.

Personal Health & Wellbeing / Benefits

• 🍼 Enhanced Parental Leave
• 🌴 Generous annual leave
• 🏥 Healthcare Plan
• 💟 Annual Giving Day – an extra day to give back to yourself or your community
• 🚲 Cycle‑to‑work Scheme

Future Planning

• 💰 Pension scheme with employer contributions
• 🧬 Life Assurance
• 💸 Rewards Program – access to discounts and cashback
• 🏫 LinkedIn Learning License for upskilling & development

Interested but don’t feel you meet all the requirements?

Our recruitment team assesses and reviews all applications against the role and business needs. We believe in people having transferable and soft skills and want you to know that we do consider where an individual might not meet all the criteria, but have the aptitude and capability, nonetheless. Our priority is to ensure we set people up for success. We will make a final call based on our determining whether we can offer the necessary support to upskill or provide the developmental support needed for you to get the best out of this opportunity with us!

Bring Your Whole Self to Work.

Alcumus is proudly an equal‑opportunity employer. We are committed to ensuring that no candidate is discriminated against because of gender identity and expression, race, disability, ethnicity, sexual orientation, age, colour, region, creed, national origin, or sex. We are dedicated to growing a diverse team while continuing to create an inclusive environment where everyone feels safe and empowered to be themselves.

What you can expect if you apply

• A response to your application within 15 working days
• An interview process consisting of:
  • An initial discovery call with the recruiter
  • A first stage interview via Microsoft Teams
  • Additional interview (likely face‑to‑face) with the stakeholders you’ll be working with closely in the role

We’re keen to ensure our hiring process allows you to be at your best, so if you need us to make any adjustments, please just let us know.