GCoM Global Ambassador’s Office Manager

Position title: GCoM Global Ambassador’s Office Manager

Department: Global Covenant of Mayors

Reporting to: Head of GCoM Global Ambassador’s Liaison

Location: Brussels - Please note that if your right to work in one of the listed locations is not confirmed at the time of applying, C40 will be unable to proceed with your application.

Salary: (Grade 4) EUR 73,382 gross per annum - Due to its commitment to maintain equity and fairness, C40 operates on a spot salary model. This means that our employees are paid the same salary according to their grade and location.

Term: Fixed term contract until 31st December 2028 (The appointment and the duration of the role is subject to the final approval of funding).

ABOUT THE GLOBAL COVENANT OF MAYORS FOR CLIMATE & ENERGY

The Global Covenant of Mayors for Climate and Energy (GCoM or Global Covenant), is a global coalition of cities and local governments with a shared long-term vision of promoting and supporting voluntary action to combat climate change and move to a low-carbon, resilient society. The alliance unites and inspires its stakeholders to strengthen global climate coherence, accelerate the energy transition, and generate locally-tailored solutions for a common purpose: creating an inclusive, just, low-emission, and climate-resilient future for all.

Co-chaired by former New York City Mayor and UN Secretary-General’s Special Envoy for Climate Ambition and Solutions, Michael R.

Bloomberg, and European Commission Executive Vice-President, Teresa Ribera and with the support of global and regional city networks, the Global Covenant of Mayors represents the strongest and clearest signal to national governments that cities are not only acting to stop the effects of climate change, they are leading and leading together.

C40 Cities is the fiscal sponsor of the Bloomberg Philanthropies funded parts of the Global Covenant of Mayors (GCoM). As the host organization, C40 provides financial, administrative, and operational services to GCoM. C40 and GCoM are working closely together on aligned programmes and areas of activity.

GCoM’s STRATEGIC DIRECTION

No single organization, initiative, sector, or government, however innovative or impactful, can accomplish all the transformational, systemic changes required of the global community. The Global Covenant of Mayors for Climate & Energy enables cities, local governments, and the networks that support them to bridge the gap from climate ambition to action delivery. The alliance unites and inspires its stakeholders to strengthen global climate coherence, accelerate the energy transition, and generate locally-tailored solutions for a common purpose: creating an inclusive, just, low-emission, and climate-resilient future for all. GCoM’s Strategic Plan is focused on deepening support through technical assistance and other means to cities that have already committed to the Global Covenant and to accelerate action delivery across all levels of government and with the private sector, academia and civil society.

ABOUT C40

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 is the fiscal sponsor of the Bloomberg Philanthropies funded parts of the Global Covenant of Mayors for Climate & Energy (GCoM). Both organizations work together on aligned programs and areas of activity with regional city networks and other partners around the globe to support thousands of cities worldwide of all shapes and sizes.

C40’s team of 400+ staff is based in offices in London, in New York, Johannesburg, Singapore, Delhi, Rio de Janeiro, Copenhagen, Beijing and Paris, and individual staff based across 25+ different locations.

The strategic direction of the organisation is determined by an elected Steering Committee of C40 mayors, which is chaired by Mayor Sadiq Khan of London and Mayor Yvonne Aki-Sawyerr of Freetown. Three-term Mayor of New York City Michael R. Bloomberg serves as President of the C40 Board of Directors, responsible for operational oversight. A regionally diverse management team, led by Executive Director Mark Watts, leads the day-to-day management of C40. C40’s two core strategic funders are Bloomberg Philanthropies 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.

C40 promotes a work culture where staff can input to improve equity, diversity and inclusion through staff-led groups and formal forums. We know that creating our ideal working environment is a learning process and we are committed to the ongoing effort.

Department description

The GCoM Global Ambassador’s Office sits within the GCoM Global Secretariat.

Position description:

The GCoM Global Ambassador’s Office Manager provides high-level administrative support, proactively managing the Ambassador’s calendar, and travel arrangements to ensure seamless operations in a fast-paced international environment.

The post holder will oversee the Global Ambassador’s schedule and day-to-day activity planning, while also supporting the GCoM Global Secretariat in Brussels more generally, specifically on events and logistics coordination.

This role serves as the primary point of contact for emails, meetings, and urgent matters, while collaborating with the Head of GCoM Global Ambassador Liaison to prepare comprehensive briefings, alongside handling expense processing, secure documentation management, and follow-up tracking with strict adherence to C40/GCoM standards and utmost confidentiality.

The successful candidate will bring significant experience in managing calendars for high-level stakeholders in fast-paced environments, demonstrating exceptional organisational skills and clear, concise communication.

Responsibilities:

• Proactively manage the GCoM Global Ambassador’s calendar, including scheduling meetings, setting agendas, and ensuring follow-up actions are executed.
• Act as the first point of contact for the GCoM Global Ambassador’s emails, messages, and meetings, prioritising urgent matters and responding on the Ambassador’s behalf when appropriate.
• Manage all travel arrangements for the Global Ambassador, including complex bookings and detailed itineraries.
• Work with the Head of GCoM Global Ambassador Liaison to prepare comprehensive briefings for the GCoM Global Ambassador, including collating all briefing materials, trip agendas, talking points, and logistical arrangements.
• Process travel expenses and receipts for the Global Ambassador, ensuring records are accurate, complete, and compliant with C40/GCoM standards.
• Organise and maintain all internal documentation securely, including tracking follow-ups, spreadsheets, and records, while ensuring sensitive information is handled with the utmost discretion and confidentiality.
• Support the GCoM Executive Office Manager in overall Brussels Office event logistics, with oversight of A/V, participation tracking and catering liaison.
• Assist the GCoM Executive Office Manager with all office-related matters, such as managing vendor relationships, overseeing office maintenance, and ensuring a smooth day-to-day operation of the workplace.

Person specification:

• Exceptional organisational skills with proven experience managing calendars for high-level stakeholders in fast-paced, international environments, including proactive planning, risk identification, and mitigation for schedules, events, and activities.
• Administrative proficiency, demonstrated through managing travel budgets, processing expenses/receipts, secure documentation, tracking spreadsheets, and supporting broader events/logistics delivery.
• Proven ability to meet tight deadlines, reprioritise tasks quickly, maintain composure under pressure, and deliver results in dynamic conditions with strong attention to detail and discretion for sensitive information.
• Event management experience, with expertise in logistics, high-profile trip coordination, VIP handling, and delivery of complex international activities across multiple time zones.
• Outstanding interpersonal and communication skills and demonstrated ability to effectively interface with senior level colleagues, both verbally and in writing.
• Ability to work as a team player and operate in a matrix environment.
• Proven ability to meet tight deadlines, reprioritise tasks quickly, maintain composure under pressure, and deliver results in dynamic conditions with strong attention to detail and discretion for sensitive information.
• Experience working in international, cross-cultural environments, including collaboration across time zones and languages.
• Flexibility and ability to adjust on the fly to new demands and a proven record to deliver.
• Masterful command of written and spoken English. Proficiency in French is highly desirable.

Other Requirements:

Applicants must already have the right to work in Belgium.

Willingness to work physically both from the Global Ambassador's office and C40 office in Brussels.

Limited travel may be required as part of the role.

C40 offers a comprehensive benefits package to support employee well-being and work-life balance:

• Paid Time Off: Full-time employees receive 35 days of paid time off annually, which includes all national holidays.
• Company Shutdowns: In addition to the standard paid time off, C40 provides two non-contractual, non-statutory shutdown weeks each year (mid-year and end-of-year) for a full break.
• Parental Leave: All employees are eligible for up to 52 weeks of parenting leave. The first 16 weeks are paid at 100% of the employee's current salary. Weeks 17 through 52 are unpaid by C40, unless payment is required by national law.
• Flexible Working: C40 supports flexible working arrangements to enhance work-life balance, provided they align with business requirements.
• Time off in Lieu (TOIL): Employees can take TOIL to recover following periods of excessive hours or travel.
• Sick Leave: Entitlement to sick leave increases upon the successful completion of the employee's probation period.
• Employee Training: Training and development opportunities are available to all staff (excluding temporary staff and interns) after they have completed and passed their probation period.
• Employee Assistance Programme (EAP): Confidential services, such as counselling, are accessible for short-term support.
• Pension scheme: C40 offers a pension scheme to employees in eligible locations. Availability is determined by the country of employment.
• Private Health Insurance: This is provided in countries where publicly funded healthcare is not available.

Application Process:

Interested applicants should submit a curriculum vitae and cover letter. The closing date for receipt of applications is Wednesday, 6th May 2026 at 5pm BST. 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 our website or follow us on X, Instagram, Facebook and LinkedIn.

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