Senior Growth Marketing Manager (Business Banking, Contractor) in London

We're hiring a Senior Growth Marketing Manager to own customer acquisition and growth for OakNorth Business Banking – driving deposit volumes, account opening, and activation. The role sits at the intersection of marketing, commercial and product. You will work closely with multiple teams and lead go‑to‑market execution for an actively expanding product suite – from savings accounts and Fixed Term Deposits to Finance Automation and escrow. This is a high‑ownership role for someone who is as comfortable in a campaign dashboard as they are in a product launch war room, and who has operated in a regulated environment where every customer‑facing message needs to hold up under scrutiny.

What you'll be doing

• Growth and acquisition
• Own Business Banking acquisition across all marketing‑attributed channels – paid search, paid social, affiliates, outbound, referral, events, and partnerships.
• Define and own the channel mix strategy: which channels to invest in, which to test, and which to cut – tied explicitly to CAC, deposit targets, and activation rates, not just traffic or leads.
• Work with each channel owner across the marketing team – digital, content, and outbound, to align strategies, share audience and performance insight, tailor messaging and ensure every channel is pulling in the same direction.
• Own the outbound targeting strategy for commercial: sector selection, data strategy, and sequence design in partnership with the BD team.
• Own landing page strategy and conversion rate optimisation – sector‑specific pages, form design, and qualification logic.
• Monitor funnel drop‑off across the acquisition journey – identify where the biggest leaks are, own re‑engagement strategies for prospects who didn’t convert, and feed learnings back into funnel and campaign design.
• Develop and iterate sector‑specific messaging, tailoring copy and proof points for each target segment rather than relying on a single generic proposition.
• Constantly experiment with new channels: affiliate partnerships, introducer programmes, intermediary channels, with a clear hypothesis and measurement framework for each.
• Track, report, and improve acquisition performance: CAC, conversion rate by channel, application‑to‑activation rate, and deposit volume per acquired customer.
• Drive cross‑sell and cross‑product growth – identifying opportunities within the existing OakNorth customer base across Business Banking, Lending, and Personal Savings to deepen relationships, increase product adoption, and grow wallet share.
• Product and feature GTM
• Own go‑to‑market execution for BB product and feature launches – release planning, positioning, channel strategy, asset production, and compliance coordination.
• Lead acquisition campaigns for new releases in the product suite: including release plan, positioning, landing pages, email campaigns, aggregator outreach and activation sequences.
• Own product talk tracks for the product suite, keeping commercial team materials current as products and rates evolve.
• Coordinate cross‑functionally across Product, Compliance, Legal, Engineering, and Operations for each release – developing and/or updating copy across the website and marketing materials.
• Brief and direct the Content Marketer, design team, and web team on launch assets.
• Commercial enablement and BD alignment
• Act as the dedicated marketing resource for the Commercial team – not a separate function. Attend daily and weekly commercial reviews and bring marketing performance data, new campaign ideas, and channel intel.
• Produce the materials the BD team needs to convert: email copy, call scripts, talk tracks, objection‑handling guides, and sector‑specific one‑pagers.
• Ensure inbound marketing messaging and outbound BD sequences are consistent, a prospect who’s seen a LinkedIn ad and then received an outbound email must experience the same proposition.
• Feed conversion and objection data from the BD team directly back into campaign and landing page decisions.
• Support events from planning through to follow‑up – work with the events manager to coordinate and host any owned, partnered or external events to drive pipeline.
• Lifecycle, activation, and retention
• Design and run lifecycle campaigns that move newly onboarded accounts from open to activated, targeting the gap between account opening and first operational use.
• Develop segment‑specific activation sequences for lending‑mandated accounts that have never used BB operationally.
• Work with Product on in‑app and in‑platform activation nudges that drive feature adoption and increase usage.
• Commercial programmes and partnerships
• Identify, design, and scale commercial programmes that support Business Banking growth targets: referral schemes, introducer programmes, affiliate channels, and strategic partnerships.
• Own the end‑to‑end performance of growth programmes: from commercial model and targeting through to execution, measurement, and iteration.
• Build scalable, trackable referral and introducer infrastructure, moving from manual processes to platforms that can grow with the business.
• Develop and manage partnership channels that extend reach into the mid‑market ICP beyond paid spend: professional services firms, accountants, law firms, and sector‑specific intermediaries.
• Work cross‑functionally with Legal, Ops, and Compliance to operationalise new programmes compliantly and efficiently.
• Performance, reporting, and compliance
• Coordinate / support reporting – consolidating acquisition, activation, and channel performance data for commercial and leadership review.
• Maintain accurate performance dashboards; work with the data team to improve attribution visibility across marketing‑attributed and commercially‑attributed channels.
• Apply FCA/BCOBS/Consumer Duty constraints at brief stage – every prospect‑facing asset is a financial promotion and must be treated as one from the outset.
• Ensure all campaign copy, landing pages, and outbound sequences are rate‑accurate, claim‑substantiated, and compliant before submission to compliance review.

What we're looking for

• 6+ years in growth or performance marketing; at least 2 years with direct ownership of B2B acquisition targets.
• Proven track record of moving acquisition numbers, not just running campaigns. You can point to a channel, a decision, and a result.
• Hands‑on experience across paid search, paid social, outbound email, and lifecycle marketing.
• Experience in a regulated environment: you’ve written FCA‑compliant copy, navigated a financial promotion approval process, and know where the compliance boundaries are.
• Strong commercial judgment: you understand CAC, payback period, and deposit economics well enough to make channel investment decisions, not just report on them.
• Comfortable working in a sales‑led model: you’ve worked alongside a BD or direct sales team and know where marketing ends and BD begins.
• Data literate: you can pull campaign reports, build a basic acquisition dashboard, and interpret funnel data without relying on an analyst for every question.

Desirable

• Experience marketing a B2B financial product to UK businesses: banking, lending, payments, or treasury/savings.
• Familiarity with the UK mid‑market segment (£1m‑£100m turnover) and the buying behaviour of founders, CFOs, and FDs.
• Hands‑on experience with Salesforce, HubSpot, Apollo, Iterable or equivalent tooling.
• Understanding of deposit economics and how acquisition metrics connect to NIM and bank‑level profitability.