Senior Growth and Marketing Manager (Agency side)

Agency Bell
Published
17 September 2026
Location
London, United Kingdom
Category
Job Type
Salary
£40000 - £55000 per annum

Description

An opportunity to either:

  • keep building your career while making your life work, with a senior role leading the charge at this established, independent, tech-forward brand design agency
  • or take a quantum leap from very solid mid level agency marketer and get some senior responsibilities

The speed read

Either way, you get the chance to promote brilliant thinking and beautiful creative work and help this long running, independent agency continue its climb in profile, giving the more 'famous' agencies a run for their money. 

This salary range is for 3 or 4 days a week (not pro rata'd). So you are either a very ambitious mid level on a sharp career growth curve, or an established senior who wants to consolidate a solid career and fold in some flexiblity and keep momentum. 

If you are someone who is deeply interested in how b2b creative agencies market themselves and has done this, read on. 

The title can be elevated for the right candidate but it is a team of one and you will be good with this. 

The facts

You will be wanting to build on or consolidate some really solid B2B agency marketing experience. You will be keen to demonstrate your marketing talent in three areas:

  • Generating, managing and executing a well oiled content engine and plan with an ‘always on’ mentality. You can stay in the detail and make sure it's perfect before launch. It will all be under your control.
  • You have a really good nose for which channels: what, where, how and when. You love using tools to deploy and then assess effectiveness, iterate and go again.
  • Working very closely with a senior team, to get the right stories told in the right way. Everyone will have your back but they are busy, so they need you to push things through and make good calls as and when.

You’ll have:

  • An appetite to work in a progressive b2b branding agency and meet the high energy level and ‘make it happen’ attitude of the people in the business.
  • Solid experience of marketing a B2B brand or creative agency (5+ years)
  • Interest and experience of marketing to tech, professional services, fintech, SAAS and other b2b sectors.
  • A good comfort level with Hubspot, SEMrush and GA or equivalents.
  • A familiarity with standard AI tools (Claude, Gemini, Chat GPT) and an enthusiasm to fill any gaps.

You’ll be:

  • Delighted to remain hands on and go from thinking big to executing the particulars
  • Very interested in using AI tools to support your great judgement; always led by you and never deferring to tech.
  • Good at writing and editing.
  • A continuous learner.
  • A total delight to have around. You like being in the studio and spending time with people, building trusted relationships. 

Hybrid working model. Salary range given is for 3 or 4 days depending on experience and level.

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