UK Mobilization Volunteer

A21; City Of London; Hybrid; GBP 10,000 - 40,000; Part time

Job summary

A nonprofit organization in London seeks volunteers to support their Mobilisation Team. This role involves managing social media, engaging with supporters, and assisting in content creation. Applicants must be over 18 and willing to commit to 1-3 days a week. Gain valuable experience in human trafficking issues and professional skills while contributing to a meaningful cause.

Benefits

In-depth knowledge of human trafficking issues

Leadership and communication skills

Opportunity for professional reference

Qualifications

• Must be 18+ years old and legally eligible to volunteer in the UK.
• Willingness to commit to at least 1 day per week for a minimum of 3 months.
• DBS clearance required.

Responsibilities

• Support the Mobilisation Team in various tasks.
• Manage updates across A21 UK social media platforms.
• Assist with content creation and campaign development.
• Thank donors and engage with supporters.
• Maintain accurate supporter records in the CRM system.

Skills

Strong communication skills

Video editing

Events planning

Public speaking

Administrative competence

Job description

WE ARE A21

At A21, we are fueled by radical hope—the kind that refuses to accept that slavery is someone else’s problem. We believe that freedom is possible, and we work every day to make that belief a reality.

We are a global nonprofit organization on a mission to abolish slavery everywhere, forever. For more than 17 years, we’ve assisted people from human trafficking and walked with them through the journey of restoration. We stand on the frontlines, not just to fight for justice—but to build a world where every person is free.

In a single moment, a number becomes a name, a tragedy becomes a victory, and belief becomes action. Freedom is the goal—for every human being on the planet.

At A21, we are deeply committed to the development and growth of our volunteers. Volunteering with A21 means joining a global movement to end modern slavery and making a meaningful contribution to our mission. As a volunteer, you will be equipped, encouraged, and challenged to grow both personally and professionally.

OVERVIEW

You will support the Mobilisation Team, focusing on social media, digital content, communications, and administrative tasks. Your work will help us reach, engage, and inspire individuals across the UK to take action against modern slavery. You will also support the Advancement Team through partner engagement, assisting with customer service, donation processes, and relationship management for supporters across the UK and Europe.

OPPORTUNITIES + KEY RESPONSIBILITIES

• Help manage updates across A21 UK social media platforms (Instagram & Facebook)
• Help monitor global A21 content to ensure consistency with brand messaging
• Engage with supporters and respond to inquiries via social platforms
• Assist in content creation, editing, and campaign development
• Design educational and presentation materials
• GFS Event Planning and Donors Support: Assist in preparing documents and supporting communications
• Thank donors via phone, handwritten cards, and email
• Support video content creation and editing
• Organise digital campaigns and video launches
• Draft and send newsletters and communication for Reach initiatives
• Maintain accurate supporter records in our CRM system
• Respond to supporter emails, letters, and general enquiries
• Assist with incoming post and administrative tasks
• Manage weekly tracking and reporting spreadsheets
• Process donations and ensure proper documentation

WHAT YOU’LL GAIN

• In-depth knowledge of human trafficking issues, globally and in the UK
• Leadership, communication, marketing, and collaboration skills
• Experience in project and event coordination
• Exposure to a global NGO working on the frontlines of justice
• Opportunities to build your professional network
• Experience in supporter relations and basic financial admin
• Option to request a professional reference from A21

REQUIREMENTS

• Must be 18+ years old and legally eligible to volunteer in the UK for a minimum of 3 months
• Strong communication skills
• Willingness to commit to a minimum of 1 day and a maximum of 3 days per week (hybrid arrangement)
• DBS clearance
• Specific desirable skills that may vary per role (e.g., video editing, events planning, public speaking, and administrative competence)

INTAKE DATES (If applicable)

November/December 2025