At a Glance
- Tasks: Lead climate diplomacy efforts and engage with global policymakers to drive climate action.
- Company: Opportunity Green, a fast-growing not-for-profit tackling climate change.
- Benefits: 4-day work week, generous holiday, competitive salary, and professional development support.
- Other info: Diversity and inclusion are core values; all backgrounds encouraged to apply.
- Why this job: Make a real impact on climate justice while working with diverse international partners.
- Qualifications: Passion for climate change, strong communication skills, and experience in multilateral negotiations.
The predicted salary is between 60000 - 60000 £ per year.
We are now looking for a Senior Manager to help the Climate Diplomacy team at Opportunity Green expand its engagement across other high-emitting sectors. We are open to UK and Belgium-based candidates.
Deadline: 10/08/2026
Location: London or remote in the UK / Brussels or remote in Belgium
Role: Permanent
Commitment: 4 day full-time work week (Monday – Thursday)
About us
Established in 2021, Opportunity Green is a fast-growing not-for-profit organisation that helps to identify and unlock opportunities to tackle climate change. We build ambitious coalitions, support climate vulnerable countries in international negotiations and find innovative legal pathways to fight climate change. The Climate Diplomacy team works to support climate vulnerable countries in their efforts to bring down emissions from high emitting sectors through multilateral negotiations and agreements, with a particular focus on securing the climate finance these countries need.
What’s the role?
As a Senior Manager, Climate Diplomacy you will support Opportunity Green’s efforts to build ambitious international country coalitions that accelerate climate action and deliver climate justice at international forums across high emitting sectors. Working closely with climate vulnerable countries, policymakers and civil society partners you will develop and deliver diplomatic advocacy that increases ambition, secures equitable outcomes and strengthens participation in negotiations.
Reporting to the Senior Director, Climate Diplomacy, a core focus will be aviation and the International Civil Aviation Organization (ICAO), but you will also be expected to provide leadership to and support the work of the wider Climate Diplomacy team across the board and help to ensure that our work at ICAO is aligned with our strategy and work elsewhere, such as in the IMO and United Nations Food and Agriculture Organization (FAO).
To achieve this, you will build relationships with key delegations at ICAO, maintain engagement year-round and manage the development and delivery of high-quality technical briefs, reports and factsheets that are shared with delegates in advance of international meetings. You will also collaborate with OG’s analytics, advocacy and legal teams as required to increase the impact of our work as an organisation, as well as working alongside our communications team to ensure that our messages are delivered effectively.
About the candidate
We are looking for a candidate with the following essential experience:
- A passion for using their skills to tackle climate change, with an ability to strategically work with global policymakers to provide them with the support they need to increase ambition
- Existing international networks– particularly if relevant to our core sectors.
- Experience navigating and engaging in multilateral negotiations.
- Excellent written and oral communication skills.
- Active listening skills, negotiation skills and the ability to work collaboratively with a wide range of stakeholders.
Desirable skills and experience:
- Strong understanding of and experience influencing climate policy in international fora.
- Extensive international networks and experience working with a diverse range of policymakers to improve and drive ambition through diplomacy, especially in an international context.
- Experience of generating realistic, ambitious and implementable policy ideas to drive climate ambition, including ‘in the moment’.
- Familiarity with aviation decarbonisation, especially in the context of ICAO negotiations.
- Experience of working with the media to become a trusted contact and generate strategic communication moments.
- An engaging public speaker with experience of communicating to varied audiences.
- Ability to think critically, independently and creatively.
- Committed to collaboration, curiosity and continuous learning.
- Commitment to Opportunity Green’s mission and values.
Diversity and inclusion
Diversity and inclusion are important principles at Opportunity Green. We believe that diversity and inclusion make teams stronger and more effective. We are committed to fair and equitable employment practices, and we are striving to ensure that a variety of voices and experiences are included in our organisation.
What we offer – UK
The successful candidate will be offered an annual salary of £60,000 plus 10% employer-contributed pension. We take our team’s well-being and professional development seriously. In addition to a competitive salary, we offer:
- A commitment to work/life balance, with a 4-day work week at 28 hours.
- A generous holiday entitlement of 20 days’ holiday per year, plus bank holidays and office closure between Christmas and New Year’s that does not count towards your holiday entitlement.
- A market-leading pension of 10%.
- A progressive family leave policy, including 26 weeks’ paid leave for the new parent, as well as other support.
- Support for your professional development as part of Opportunity Green, with a budget to support your learning & development plus opportunities to lead projects, publish content, learn from experts, work directly with policymakers and stakeholders, and take part in conferences and events.
What we offer – Belgium
The successful candidate will be offered a monthly salary of €5,028.74 plus 8% employer-contributed pension. We take our team’s well-being and professional development seriously. In addition to a competitive salary, we offer:
- A commitment to work/life balance, with a 4-day work week at 28 hours.
- A generous holiday entitlement of 20 days’ holiday per year, made up of 16 legal annual leave days and 4 extra-legal holiday days, plus Belgian bank holidays.
- A market-leading pension of 8%.
- A progressive family leave policy, including 26 weeks’ paid leave for the new parent, as well as other support.
- Support for your professional development as part of Opportunity Green, with a budget to support your learning & development plus opportunities to lead projects, publish content, learn from experts, work directly with policymakers and stakeholders, and take part in conferences and events.
What happens next?
Shortlisted candidates will be invited for an online interview to discuss their experience and suitability for the role. After this, candidates that are most suitable for the vacancy will be invited for an in-person interview in our London office.
Senior Manager, Climate Diplomacy employer: Climate Security Expert Network (CSEN)
Opportunity Green is an exceptional employer dedicated to tackling climate change through innovative diplomacy and collaboration. With a commitment to a 4-day work week, generous holiday entitlements, and a strong focus on professional development, employees enjoy a supportive work culture that values diversity and inclusion. Located in vibrant London or Brussels, team members benefit from flexible working arrangements and the opportunity to engage with global policymakers, making a meaningful impact in the fight for climate justice.
Contact Details:
Climate Security Expert Network (CSEN) Recruitment Team
StudySmarter Expert Advice🤫
We think this is how you could land Senior Manager, Climate Diplomacy
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We think you need these skills to ace Senior Manager, Climate Diplomacy
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Show Your Passion for the Cause:In the nonprofit sector, it's super important to demonstrate genuine passion for the mission of Climate Security Expert Network (CSEN). Use your cover letter to showcase any personal experiences or volunteer work that connects you to their social impact initiatives. This emotional connection can really help your application stand out.
Highlight Relevant Experience:When crafting your CV, be sure to include any relevant projects or roles that showcase your skills in social impact. Whether it's community organising, fundraising, or advocacy, highlight what you've done and the difference it's made. Don’t just list tasks; quantify your achievements and the outcomes of your efforts.
Tailor Your Documents to the Role:For a full-time role like Senior Manager, Climate Diplomacy, ensure your CV and cover letter specifically address the responsibilities outlined in the job description. Use their language to describe your skills and experience, making it easy for the hiring team to see how you fit into their vision.
Emphasise Teamwork and Collaboration:Nonprofits thrive on teamwork, so make sure to emphasise your collaborative experiences. Whether you've worked in a team setting, partnered with community organisations, or facilitated group projects, highlight these experiences in your application. Show them you understand the importance of working alongside diverse individuals to achieve shared goals.
How to prepare for a job interview at Climate Security Expert Network (CSEN)
✨Show Your Passion for Social Change
When we’re prepping for interviews in the nonprofit space, it's vital to demonstrate our genuine passion for social impact. Be ready to discuss not just your skills and experiences but also why you care about the mission of Climate Security Expert Network (CSEN). Sharing personal stories or insights can really make us stand out.
✨Highlight Project Experience
We should focus on specific projects we've worked on that align with the goals of social impact. Whether that’s a community initiative, volunteering, or a class project, having solid examples that showcase our role and the outcomes will resonate well with the interviewers.
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Let’s brush up on tools and methodologies commonly used in the nonprofit sector, like project management software or outcome measurement frameworks. Being able to speak fluently about these will show that we’re not just passionate but also knowledgeable and ready to hit the ground running.
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