Business solutions manager volunteer roles in Bristol

Revive Battery B.V. is a sustainability-driven cleantech startup based in the Netherlands, working at the intersection of energy, circular economy, and climate action. We specialize in battery regeneration and lifecycle innovation—extending battery life, reducing waste, and lowering environmental impact through advanced regeneration technologies and digital traceability solutions.

Volunteership Summary

As a Social Media Manager, you will support the planning, creation, and management of Revive Battery’s social media presence. Working closely with the marketing, business development, and leadership teams, you will help develop and implement social media strategies that increase awareness, engagement, and visibility around battery regeneration, sustainability, and circular energy systems.

This volunteership offers hands-on experience in social media strategy, content planning, digital storytelling, and online community engagement within a fast-paced sustainability startup environment.

Key Responsibilities

• Plan and schedule social media content across platforms such as LinkedIn and other relevant channels
• Create engaging posts, captions, and content formats that communicate Revive Battery’s mission, technology, and impact
• Support the development and management of a structured social media content calendar
• Monitor social media engagement and basic performance metrics to track audience growth and interaction
• Research trends, industry developments, and sustainability topics to support social media content creation
• Repurpose long-form content (articles, reports, newsletters) into concise and engaging social media posts
• Engage with comments, messages, and relevant discussions to strengthen community interaction and brand presence
• Collaborate with designers and team members to ensure visual content aligns with messaging and branding
• Contribute ideas during marketing brainstorm sessions and weekly virtual meetings

Requirements

• Currently pursuing or recently completed a degree in Marketing, Communications, Digital Media, Business, Environmental Studies, or a related field
• Strong interest in social media, digital communication, and online audience engagement
• Good writing and communication skills in English
• Ability to translate complex sustainability or technical topics into clear and engaging social media content
• Interest in sustainability, renewable energy, or the circular economy
• Comfortable using digital and AI-supported tools (e.g. ChatGPT) for ideation while maintaining originality and brand voice
• Organized, proactive, and reliable in a remote working environment
• Familiarity with Google Workspace; experience with Canva or social media scheduling tools is an advantage

Learning Outcomes

• Practical experience managing social media for a sustainability-focused startup

• Hands-on exposure to social media strategy, content planning, and audience engagement

• Experience building and managing professional social media campaigns

• Collaboration with an international, mission-driven team on real-world projects

• Increased understanding of the circular economy and energy transition sector

What We Offer

• A structured Volunteership experience with defined responsibilities and learning objectives
• Flexible, fully remote working arrangement within an international team
• Mentorship, feedback, and guidance from experienced professionals
• Volunteership Agreement, certificate of completion, and reference letter upon successful completion
• Opportunity to contribute directly to meaningful climate and sustainability initiatives

Minimum Hours per Week:

10+ hours per week

Duration:

3-5 months

Constantnople Enterprise delivers AI-enabled HDPE fish cages that boost productivity, reduce pollution, and support sustainable aquaculture across Kenya and the broader African region.

Fish farmers often rely on traditional cage systems that lack real-time monitoring and durability, leading to high mortality rates and inconsistent yields. This inefficiency contributes to food insecurity and environmental degradation, as unmanaged systems can cause water pollution and feed waste. With climate change bringing temperature fluctuations and oxygen depletion, farmers need adaptive technology to protect their livelihoods and freshwater ecosystems.

Constantnople provides a high-tech circular solution by integrating durable High-Density Polyethylene (HDPE) cages with an AI-powered monitoring system. Our sensors track water quality parameters like dissolved oxygen and temperature in real time, while data analytics optimize feeding schedules to reduce waste and detect early signs of fish stress. By combining resilient physical infrastructure with digital intelligence, we empower farmers to increase productivity, improve survival rates, and promote responsible management of aquatic environments.

Role Description:

• Identify and pursue grants, impact investment, sponsorships, and donor funding opportunities.
• Build and maintain relationships with NGOs, government agencies, foundations, corporate partners, and impact investors.
• Prepare compelling proposals, pitch decks, and funding applications.
• Develop and implement fundraising strategies aligned with organizational goals and social impact metrics.
• Track and report on funding performance, donor engagement, and partnership outcomes.
• Collaborate with internal teams to quantify impact, collect data, and demonstrate program effectiveness to funders.
• Represent the organization at networking events, conferences, and fundraising forums.

Qualifications & Skills:

• Bachelor’s degree in Business, Development Studies, Social Entrepreneurship, or related field.
• Proven experience in fundraising, grants management, or partnerships in the nonprofit or social enterprise sector.
• Strong writing, communication, and presentation skills.
• Ability to craft compelling narratives about social impact and sustainability.
• Familiarity with impact metrics, monitoring, and evaluation is a plus.
• Self-motivated, strategic thinker, and team player with a passion for social impact.

Why Join Us:

• Contribute to scaling an innovative, socially-driven technology in aquaculture.
• Work directly with a passionate, multidisciplinary team committed to empowering marginalized communities.
• Opportunity to shape the growth strategy and create measurable social and environmental impact.

Minimum Hours per Week:

4-6 hours per week

Duration:

3-5 months

Purpose of the role:

We are seeking a WordPress / PHP Developer to help build and maintain the core web systems that power our public platform and membership services. This is not a commercial web development role. This is about creating digital infrastructure that belongs to the community and serves long-term social impact.

About the role:

As WordPress / PHP Developer, you will be responsible for developing and maintaining the CIC’s main website and connected digital services using open-source technologies. You will help ensure our platforms are stable, secure, accessible, and capable of supporting growth in membership, education, and fundraising. Your work will directly affect how people access information, join the community, and engage with the organisation.

Experience Qualification and Requirements

Formal qualifications is desirable but STRONG experience and passion beats and tops this always.

Main Responsibilities/ Key Duties

· Develop, maintain, and improve WordPress-based websites and systems that support organisational operations, services, and growth.

· Build, customise, and extend WordPress themes and plugins using PHP, HTML, CSS, JavaScript, and related technologies.

· Ensure code is clean, secure, maintainable, and aligned with WordPress and open-source best practices.

· Integrate open-source tools and third-party platforms, including membership systems, learning platforms, data tools, and APIs.

· Support the development and maintenance of secure member portals and restricted service areas with role-based access and permissions.

· Ensure websites are responsive across devices and browsers and optimised for performance, speed, and reliability.

· Apply accessibility standards to ensure inclusive access and usability for all users.

· Implement security best practices, including updates, patching, backups, access controls, and vulnerability prevention.

· Monitor platforms and assist with regular maintenance, upgrades, and issue prevention.

· Work closely with designers, content teams, and systems leads to translate functional needs into technical solutions.

· Advise on technical feasibility and recommend improvements where systems or tools create limitations.

· Assist with troubleshooting, debugging, and resolving technical issues across WordPress environments.

· Document code, integrations, system architecture, and technical processes clearly for technical and non-technical users.

· Ensure all systems comply with data protection, GDPR principles, safeguarding requirements, and ethical data handling standards.

· Collaborate with safeguarding and digital leads to minimise risk when handling sensitive or survivor-related data.

Essential Skills and Experience

· Strong practical experience with WordPress and PHP development.

· Experience building or customising WordPress themes and plugins.

· Solid understanding of HTML, CSS, and JavaScript.

· Experience integrating third-party tools, plugins, or APIs.

· Knowledge of WordPress security, performance optimisation, and update management.

· Ability to document technical work clearly and work collaboratively across teams.

· Understanding of GDPR principles and secure data handling.

· Strong problem-solving skills and ability to work independently.

· Equivalent professional or voluntary experience accepted.

Desirable Skills and Experience

· Experience working in non-profit, CIC, or community-led organisations.

· Familiarity with open-source or low-cost digital platforms.

· Experience building membership portals or learning platform integrations.

· Basic understanding of hosting environments or server configuration.

· Experience supporting volunteer-led or safeguarding-focused digital environments.

What This Role Offers You:

Founding role in a community-owned digital infrastructure project.

Leadership-level experience in open-source platform development.

Opportunity to build systems that directly support social change.

Experience working across digital, education and membership teams.

Direct contribution to a public-facing platform for justice and empowerment.

Priority consideration for future paid roles as the C.I.C. becomes financially sustainable.

What This Role Is Not For:

People who want to work only with proprietary or closed systems.

Anyone uncomfortable working with serious or sensitive subject matter.

Those seeking guaranteed or immediate income.

Individuals unwilling to document their work or follow shared standards.

People who prefer not to collaborate with non-technical teams.

If you believe technology should belong to the people who use it and that open-source systems can support truth, protection and collective power, this role gives you the chance to build the digital foundations of a movement.

Join the Digital Infrastructure Team and help create platforms that serve community, not corporations.

Please note: this role would be based in our Bristol region and would potentially cover HMP Guys Marsh, HMP The Verne and HMP Portland.

Do you want to join an organisation committed to addressing low literacy and numeracy?

Volunteers are essential to Shannon Trust and bring their energy, ideas and skills to train mentors in prisons, support learners in the community and enhance our business support team.

We are looking for volunteers to provide training and support to our mentors in prison. There may be some additional preparation and/ or administrative tasks in between volunteering days at the prison.

Our prison volunteers nurture the growth of the Shannon Trust in their prison. They help unlock the power of reading by delivering training sessions for prison mentors and offering ongoing advice, guidance and support through mentor meetings.

Volunteer recruitment dates

The closing date for applications to attend our next round of training is 26 April 2026. In some circumstances, volunteer vacancies may close early. Successful applicants will be sent interview questions in advance with notice to prepare. We will respond to all applications. Successful applicants will be invited to an interview between 27 April and 8 May 2026. This is an opportunity for you to meet our regional team, to find out more about you and for us to share more information about the volunteering role.

Training:

You'll be given high quality training to prepare you for volunteering with Shannon Trust. This takes place over 4 training sessions and via our online training portal. We ask that volunteers aim to complete the training in one course as this means that you will be ready to start actively volunteering. The next training sessions for volunteering for people applying to be a prison based volunteer will take place as follows.

Please check that you can attend all of the training the dates prior to applying:

• 27 May 2026, 10am – 1pm (via Zoom)

• 3 June 2026, 10am – 1pm (via Zoom)

• 10 June 2026, 10am – 1pm (via Zoom)

• 1 July 2026, 10am-4pm (in person session, London)

You’ll also receive the opportunity to attend ongoing training sessions and peer support meetings during your time as a volunteer to build your skills and experience.

Why we want you

Shannon Trust’s vision is of a future where everyone can experience the positive impact of learning. As a prison volunteer your role will be at the heart of our organisation as you support our mentors in prisons. This will include delivering training to new mentors and supporting existing mentors to develop and deliver our Turning Pages and Count Me In programmes. You will be volunteering alongside Shannon Trust facilitators and / or frontline prison staff to empower mentors and ensure no one is left out of learning.

What you will be doing

• Delivering initial, and ongoing, training to mentors in prisons
• Supporting and encouraging the Shannon Trust facilitator and mentors to attract new learners and expand the reach of the Shannon Trust programme
• Arranging and leading mentor meetings to develop mentors’ skills, share good practice and to provide support to mentors to find solutions to concerns
• Supporting facilitators to engage prison staff and people in prison to set-up, maintain and develop the Shannon Trust reading and numeracy programmes across the whole prison, and contributing to progress planning for how to progress and achieve this
• Using your skills to build positive relationships with frontline prison staff, people in prison and other organisations
• Training and supporting mentors to collect and submit data and learner feedback
• Supporting with the planning of, and attendance at, celebration events
• Collecting and sharing good news stories and feedback
• Attending area meetings and sharing good practice with other volunteers
• Engaging with quarterly reviews to receive support and discuss progress
• Acting as an ambassador for Shannon Trust in all that you do, sharing the vision and values of the charity throughout your volunteering

The skills you need

• A commitment to providing non-judgemental support to people in prison
• Able to give a regular, reliable commitment for ideally two years and have flexibility to visit the prison at times required
• Strong communication skills and are able to use these to inspire others
• Able to deliver engaging training and identify training and support needs for mentors
• Able to manage own time and prioritise
• Able to keep up to date with Shannon Trust news and communications and share relevant information with the wider prison team
• Able to use IT

What's in it for you

• Developing and growing your understanding of the HMPPS structure and prison system
• Reasonable, out of pocket, volunteering expenses are
• You will receive induction training and ongoing training to support and develop you in your role
• All volunteers receive ongoing support and quarterly reviews to enable you to gain the most from your volunteering experience
• We recognise and are grateful for the added value that volunteers bring to our organisation
• We provide flexible volunteering opportunities, subject to the requirements of your role

Disclaimer

In some circumstances, volunteer vacancies may close early.

Our partner is a growing NGO working to improve access to healthcare for underserved and remote communities in Uganda. As the organisation scales its programmes and funding, it is seeking pro bono support to strengthen its finance systems, reporting, and organisational foundations, ensuring they are robust, efficient and fit for future growth.

They are looking for an experienced finance or business professional to provide remote, hands-on support over an initial three-month period. The assignment will be delivered in two phases, starting with a review of current finance systems, workflows and reporting, and supporting leadership to clarify what “good” looks like for the organisation’s future systems. The volunteer will work closely with senior leadership and the finance team, helping to improve use of their existing accounting system, strengthen budgeting and KPI reporting, and reduce pressure on senior staff through clearer processes and controls.

Key areas of support may include:

• A finance health check, reviewing current processes, controls, workflows and approval structures, with a focus on identifying opportunities to streamline and reduce the administrative burden on senior leadership.
• A review of how Odoo is currently being used, with practical recommendations to improve reporting efficiency, data quality, and usability.
• Strengthening budgeting and budget vs actual (BvA) reporting, including alignment between budgets and the chart of accounts.
• Development or refinement of a small set of core financial KPIs that support internal decision-making for leadership and programme teams.

The work will be undertaken collaboratively, with a focus on practical, proportionate recommendations that can be implemented by a small team in a low-resource context. The finance professional will lead on refining the scope and deliverables, based on the initial findings.

Profile

This role would suit a finance or business professional with experience in finance systems, ERP/accounting tools, management reporting, and organisational design. Experience working with NGOs or in international or low-resource settings would be highly valued. The ideal volunteer will enjoy working alongside teams, sharing workload as well as advice, and translating technical concepts into usable solutions.

Time commitment

The assignment will be delivered remotely, requiring approximately 2–3 hours per week over an initial three-month period, with flexibility to extend depending on progress and availability. The preferred start date is as soon as possible.

Ready to fuel a revolution in men’s growth?

At MINDSET, we’re building a brand-new start-up for men’s mental wellbeing and personal growth across England and Wales. We’ve got the vision and the drive, but to make a lasting impact, we need a Fundraising Lead who knows how to turn a bold mission into a sustainable reality.

We’re looking for a strategic, high-energy volunteer to hunt down opportunities, build powerful partnerships, and lead the charge in securing the resources we need to grow.

The Mission:

• The Grant Hunter: Research and write high-impact applications to secure the funding that builds our foundations.
• The Digital Architect: Launch creative online campaigns—from crowdfunding to viral social giving—that get the public behind us.
• The Power Broker: Build strategic partnerships with businesses, major donors, and companies who want to be part of a real solution for men.
• The Team Captain: Lead and inspire a squad of volunteer fundraisers, giving them the direction they need to smash our targets.

The Vibe:
We’re moving away from the "guilt-trip" style of fundraising. We want someone who sells the vision and the strength of our work. This is a blank canvas for you to build a funding strategy that is as modern and direct as we are.

Sound like you?
If you’re a natural communicator with a sharp eye for opportunities and a passion for men’s self-improvement, let’s get the resources we need to change lives.

Fund the MINDSET Movement