Senior Social Media Community & Optimisation Manager

Communications & Events · US C40 Cities (East Coast), Brazil, South Africa, Colombia, Mexico, New York
Department Communications & Events
Employment Type Full-Time
Minimum Experience Senior Manager/Supervisor
Compensation (Grade 3) US C40 cities (east coast) Starting from $59,693 and depending on location / Brazil BRL 210,144 / South Africa R787,500 / Colombia COP 124,060,918 / Mexico MXN 825,474


C40 is a network of nearly 100 mayors of the world’s leading cities, who are working to deliver the urgent action needed right now to confront the climate crisis, and create a future where everyone, everywhere can thrive. Mayors of C40 cities are committed to using a science-based and people-focused approach to help the world limit global heating to 1.5°C and build healthy, equitable and resilient communities. Through a Global Green New Deal, mayors are working alongside a broad coalition of representatives from labour, business, the youth climate movement and civil society to go further and faster than ever before. 

C40’s team of 250+ staff is headquartered in London, with offices in New York, Johannesburg, Singapore, Rio de Janeiro, Copenhagen and Beijing, and individual staff based across 25+ different locations, with the Office of the Chair based in London. 

The strategic direction of the organisation is determined by an elected Steering Committee of C40 mayors which is chaired by the Mayor of London, Sadiq Khan. Three-term Mayor of New York City Michael R. Bloomberg serves as President of the C40 Board of Directors, which is responsible for operational oversight. A nine-person management team, led by Executive Director, Mark Watts, leads the day-to-day management of C40. C40’s three core strategic funders are Bloomberg Philanthropies, the Children’s Investment Fund Foundation (CIFF) and Realdania.

Our international staff work with the C40 network under the leadership of city governments to deliver this mission. Using a data-driven approach, our team identifies and promotes the exchange of proven programmes and policies developed by cities; provides world-class research, technical expertise and access to key partners to deliver new programmes and policies with cities; and communicates cities’ individual achievements and collective leadership.

Diversity Statement

C40 is committed to supporting and promoting equity and diversity and creating an inclusive working environment for everyone. We believe that when people with different life experiences are involved in decision-making, we deliver better. 

We believe having a diverse workforce ensures we connect better with all the different communities and people affected by the climate crisis. This enables us to make better decisions which lead to better outcomes in the work we do through increased creativity, productivity, greater global impact alongside a broader perspective and approach to our work.

We welcome applicants that are diverse in terms of age, gender identity, sexual orientation, physical or mental ability, ethnicity and perspective. Our goal is for C40 to be an environment where everyone, from any background, can flourish and can be themselves whilst contributing to our mission. If you identify as a person with a disability, we work to provide reasonable appropriate measures and any additional support needed to provide an equitable working experience. If you are living with a disability, chronic illness or neurodiversity please inform us, to provide you with the proper assistance in the application process.

Department Description 

The C40 Communications and Events team is responsible for strategically positioning C40 as one of  the world’s most impactful climate organisations by celebrating the ambitious, equitable action  underway in C40 cities and establishing our mayors as global leaders of the climate movement.  Through our global communications, creative campaigns and events, we aim to shift the narrative and  inspire real progress on the greatest challenge humanity is facing today.  

Position Description 

The Senior Social Media Community and Optimisation Manager plays a key role within the Communications & Events Team, and  is responsible for taking C40’s presence on social media and other digital platforms to the next level,  further strengthening C40 as one of the leading voices in the global climate conversation, and  connecting our organisation with audiences around the world through existing and new platforms.  The postholder will be responsible for helping to monitor key trends and results, improve workflow, developing, posting and promoting with paid media exciting and impactful content and creative campaigns. Our ideal candidate is both creative and analytical, and brings to the table vision and a solid track record of delivering innovative and high-quality content for social and  digital media. 

The postholder will play a leading role in helping to increase the visibility of both C40 as an organisation  and our cities’ work, through the effective promotion of C40’s events, achievements and activities on  social and digital media, helping to build a strong and engaged brand with an authoritative voice. 


  • Lead on Social Media Community and Optimisation management for C40. Design, conduct and deliver standard and custom social media reports. Deep dive into the data to uncover drivers of social buzz, then translate the data into a compelling story and content ideas.
  • Monitor social media activity of C40 network of cities and mayors to engage. 
  • Monitor C40 reach, engagement and sharing of voice.
  • Conduct paid social media activations during key moments/campaigns to help boost reach and engagement among key audiences in strategic locations. 
  • Implement social analysis for campaigns/events and present insights back to inform content /Media decisions for campaign/event activities and advise on actions to take from an optimisations standpoint.
  • Monitor daily, or upon ad-hoc request, various social listening and content monitoring towards trends and hot news. Consult stakeholders on topic definitions, social listening measures and filters to define objectives and set deliverables for standard and custom reports.
  • Create a semi-automated workflow for social media content approval across different internal teams, leveraging platforms such as salesforce social studio. 
  • Support developing and maintaining C40’s social media calendar, including drafting and  scheduling content for delivery across multiple digital and social media platforms. 
  • Help ensure all content going out on C40’s channels is of the highest quality and is accurate, in order to protect the reputation of C40 and its network of mayors.  
  • Ensure that C40’s voice across our digital channels is consistent and aligns with C40’s overall  mission and the global communications strategy. 
  • Support development of a robust social media strategy with metrics and KPIs to help take C40’s external  communications and social media presence to the next level. 
  • Liaise regularly with colleagues across the organisation to mine great content and stories from cities taking action on climate, and create a compelling and cohesive story to tell to our online  audiences throughout the year. 
  • Manage C40’s social media channels and live social coverage during major events, including the C40 World Mayors Summit and UN COPs. 
  • Help to meet and exceed goals for traffic and audience growth, and community engagement.
  • Create toolkits for cities, partners and key stakeholders to communicate about C40’s events,  announcements and campaigns. 
  • Work closely with C40’s regional teams as well as mayors’ teams to ensure social media  content is relevant to mayors and ensure close coordination on social media posts &  messaging for major announcements and campaigns.  
  • Work collaboratively with the content, design and media teams, as well as external  freelancers, to ensure C40’s social media content is informative, exciting, and accurate.  
  • Undertake regular research and put together monthly reports on the latest best practices for social media, exciting new trends and opportunities to expand our brand to new audiences.
  • Produce and disseminate mailings linked to events, key milestones and campaigns; with other members of the team, develop a more effective and engaging strategy for regular C40  mailings.  
  • On occasion, help maintain content on and associated microsites. 

Person Specification: 

  • Bachelor’s Degree or equivalent experience in English; Statistics; Journalism; Marketing or other relevant field.  
  • Excellent written and oral communication skills, including the ability to present complex  information in an engaging way to a variety of target groups.  
  • Expertise on how to leverage different social platforms and community channels to drive  growth, engagement, and business plan goals. 
  • Experience working hands-on with high level international agendas and VIPs.
  • Experience running social media channels during major events, including leading on live  coverage across various platforms.  
  • In-depth knowledge of the global climate conversation and key players, including mayors and  global thought leaders. 
  • Proven experience in the development and production of creative and engaging social media  content. 
  • A deep understanding of all social media platforms including Facebook, Instagram, Twitter  and YouTube, and willingness to learn how to deploy stories across various platforms;  knowledge of and interest in the use of digital media by different audiences, particularly  millennials and Gen Z.  
  • Expertise with social media and digital marketing tools such as Hootsuite and Mailchimp.
  • Strong attention to detail. 
  • Excellent IT skills -- capacity to learn how to use a content management system and digital  platforms.  
  • Excellent multitasking, organisational and time-management skills.
  • Ability to work in a fast paced environment. 
  • Experience working for a global organisation across multiple time zones and cultures is desirable. 
  • Fluent English speaker; ability to speak other languages a plus.

Other Requirements:

Applicants must already have the right to work in the location they are applying for. Some international travel may be required for this role.

Reporting To: Director of Digital

Term: Indefinite

Location: US C40 Cities (East Coast), Brazil, South Africa, Colombia, Mexico

Salary: (Grade 3) US C40 cities (east coast) Starting from $59,693 and depending on location / Brazil BRL 210,144 / South Africa R787,500 / Colombia COP 124,060,918 / Mexico MXN 825,474

Application Process: 

To apply, please submit an updated curriculum vitae and cover letter.

Closing date for applications is 9am BST Thursday 25, August 2022. C40 reserves the right to close this job opening before the closing date for applications so please do submit applications early.

To learn more about the work of C40 and our cities, please visit, follow us on Twitter @c40cities and like us on Facebook at

For any queries about the role, please contact

C40 is an equal opportunities employer.

Thank You

Your application was submitted successfully.

  • Location
    US C40 Cities (East Coast), Brazil, South Africa, Colombia, Mexico, New York
  • Department
    Communications & Events
  • Employment Type
  • Minimum Experience
    Senior Manager/Supervisor
  • Compensation
    (Grade 3) US C40 cities (east coast) Starting from $59,693 and depending on location / Brazil BRL 210,144 / South Africa R787,500 / Colombia COP 124,060,918 / Mexico MXN 825,474