Marketing Assistant

Do you want to help build a company with the capacity to disrupt whole industries and take on environmental issues on a global scale?

Matter. is a VC-backed Cleantech scale-up on a mission to transform industrial water filtration and protect the planet. As we continue to grow, we're hiring for a proactive, organised and creative Fixed Term Contract Marketing Assistant to join our Commercial team and help bring Matter’s story to life.

This is an opportunity to join a growing business where no two days are the same. You’ll support a broad range of marketing activities, from creating engaging content and coordinating events to showcasing customer success and strengthening Matter’s brand. Working closely with teams across the business, you’ll play a key role in bringing our story to life and supporting our mission.

Job Title: Marketing Assistant
Duration: 6 month Fixed Term Contract (December '26 to May '27)
Hours: 40 hour working week
Location: Central Bristol
Salary: £28,810 per annum (prorated on annual basis)

About Matter

Matter. are innovators in water filtration, developing pioneering filtration technology to capture microplastics and cut carbon emissions. You'll be working for a business tackling some of the world's biggest environmental challenges by helping remove micropollutants from our waterways.

Through brilliant design thinking, powerful partnerships and an impatience to make what we do matter, our mission is to transform industries through technology that empowers customers and protects the planet.

We pride ourselves on our amazing technology and passion for wanting to change things, but fundamentally what we're most proud of is our people.

For us, people are everything. It's what makes a company, not the mission written on the wall or the building we work in. Our people represent our values, our culture and why we do what we do.

The Opportunity

Reporting to our Head of Marketing, you’ll play an important role in delivering engaging marketing communications and campaigns across a range of channels, both online and offline.

This is a varied, hands-on role where you’ll help coordinate events, create content, support digital marketing activity and ensure our brand and messaging remain consistent. You’ll work closely with colleagues across the business, as well as external suppliers and partners, helping turn technical projects and customer successes into compelling marketing materials.

It’s a great opportunity for someone who enjoys variety, takes pride in getting the details right and wants to develop their marketing skills in a growing engineering business.

Working at Matter

You’ll join a collaborative Commercial team, with support from the Head of Marketing and opportunities to develop your skills through regular feedback and clear objectives.

You’ll have the opportunity to work across a broad range of marketing activities, gaining exposure to our customers, projects and wider business as you help strengthen Matter’s brand and support our commercial growth.

Key Responsibilities

• Events and exhibitions - Own and maintain our events calendar, coordinate planning and logistics, and help prepare materials for exhibitions, conferences and speaking opportunities
• Content and communications - Write and schedule organic social media content, support website updates and news articles, and help maintain consistent messaging across our channels
• Case studies and awards - Gather project information, customer feedback and insights to support case studies, marketing collateral and award submissions
• Marketing operations - Maintain marketing dashboards, reporting data, digital asset libraries and documentation to support effective campaign tracking and delivery
• Commercial support - Track enquiries, help maintain the flow of leads between Marketing and Sales, and support timely follow-up
• Supplier coordination - Manage the ordering of printed materials, promotional items and branded merchandise, supporting supplier relationships and marketing purchases
• Research and insight - Keep up to date with relevant industry news and trends, identifying opportunities for content and campaign development
• Team support - Provide day-to-day administrative support to the Marketing team and work collaboratively with colleagues across Engineering, Commercial and Operations

Skills, Knowledge and Expertise

About You

We’re looking for someone who is organised, curious and keen to make a contribution. You’ll be comfortable balancing multiple priorities, communicating with different stakeholders and taking ownership of tasks from start to finish.

You’ll ideally bring

• Strong written communication skills and confidence creating clear, engaging content
• Excellent organisation and attention to detail, with the ability to manage competing deadlines
• Confidence working with spreadsheets, data and reporting tools
• A proactive approach, with the ability to work independently and use your initiative
• A collaborative mindset and the confidence to build relationships across teams
• Adaptability, curiosity and a willingness to learn

What would be useful

You don’t need to tick every box, but experience or knowledge in any of the following would be beneficial:

• A qualification in marketing, communications, business or a related subject
• Familiarity with email marketing platforms
• Experience supporting events, exhibitions or conferences
• Experience creating or coordinating content for social media and websites

Benefits

• Flexible working environment, with core hours of 09:30–16:00 and hybrid working available, based at our central Bristol HQ
• Annual Leave – 26 days + public holidays
• Birthday leave
• Bank Holiday swap scheme
• Enhanced family leave
• Enhanced sick pay
• 5% employer pension contribution
• BUPA Private Medical Insurance
• Unum Cash Plan
• Unum Critical Illness Cover
• BUPA Dental Plan 
• Life Assurance
• Virtual GP
• Employee Assistance Programme
• Training & Development (5% of contractual hours)
• Professional membership
• Monthly lunch & learns
• Team socials
• Healthy snacks
• Cycle to Work Scheme
• Ethical discounts
• Free parking

If you’re looking for a varied marketing role where you can build your experience, take ownership and contribute to the growth of an innovative engineering business, we’d love to hear from you.

The global mission to achieve cleaner water can't wait, so neither should you. Apply today!
What to expect

After acknowledging your application, we'll update you on the next stage of your hiring journey with Matter within 48 hours.

At Matter, we believe representation matters. We're committed to creating an inclusive workplace where everyone feels valued, respected and able to thrive. We encourage applications from people of all backgrounds because we know that diverse perspectives help us build a stronger business and better solutions.

If you’re looking for a varied marketing role where you can build your experience, take ownership and contribute to the growth of an innovative engineering business, we’d love to hear from you.