Head of Digital Growth Marketing
Portrait of Joshua Quarrie

Joshua Quarrie BSc APM (Assoc.)

Growth leader focused on funnel optimisation, ROI visibility, and high-performing teams.

LinkedIn
/in/jmaquarrie/
Location
United Kingdom
Focus
Digital growth, funnels, lifecycle, ROI

Experience

14+ years

Team leadership

Up to 18 people

P&L ownership

10% budget beat

Specialism

CRM, funnels, experimentation

Professional Summary

CRM & Lifecycle Growth Leader

Hands-on strategist with deep HubSpot expertise, funnel ownership, and data-first decision making.

CRM and lifecycle marketing leader with 10+ years’ experience owning end-to-end CRM strategy, marketing automation, and customer journey optimisation across B2B and B2C environments.

Hands-on expertise in HubSpot (as senior leader within a diamond agency), segmentation, workflow design, lifecycle management, and performance reporting. Proven track record improving engagement, conversion, retention, and churn through data-driven insights and well governed CRM setups.

Highly technical, analytically minded and comfortable working cross-functionally with product, sales, data, and marketing teams in fast-paced, scaling organisations.

Project highlights

Reporting and ROI

Built performance dashboards and ROI tracking across 200+ clients.

Growth Funnel Optimisation

Ran continuous experiments to improve traffic quality, conversion, and ROI.

Newcastle University CRM/ERP

Managed full stack campaigns, CRM/ERP integration, and board-level reporting.

Lead Generation

Designed B2B lead gen framework across HubSpot, paid social, content, and events.

Speaker Roles

On-stage & Presenter Highlights

Sharing insights on AI, digital strategy, and growth with international audiences.

  • “The future of Digital Marketing in the Age of AI” — keynote speaker at Love Inbound 2023, presenting insights and predictions to an audience of 100+.
  • Nominated speaker for INBOUND, Boston 2023.
  • Award Presenter, Intercity Technology 2019.
  • “GPT Crash-course” — presentation for in-house teams and external clients (2024).

Capabilities

Core Skills & Strengths

Full-funnel ownership across acquisition, conversion, retention, and reporting.

Growth Marketing

Lead generation, multi-channel orchestration, experimentation, and performance optimisation across web, CRM, and paid.

Strategy & execution

Funnel Optimisation

Conversion design, messaging iteration, and experimentation to move users through acquisition, activation, and retention.

A/B testing

Lifecycle & CRM

Segmentation, automation, workflow design, data hygiene, and lifecycle health monitoring with HubSpot and connected stacks.

HubSpot expert

Attribution & ROI

Dashboarding, ROI analysis, and CAC/LTV/ARR modelling to make decisions visible to senior leadership.

Performance visibility

Leadership

Built and led teams up to 18 people; instilled experimentation culture, delivery discipline, and sustainable performance.

Coaching & mentoring

Delivery & PM

End-to-end project management, risk tracking, governance standards, and playbook creation across multi-market teams.

APM certified

Systems & Tooling

Analytics & Dashboards (GA, Power BI, Tableau) HubSpot / CRM Paid & Organic Platforms CMS platforms Collaboration tools Segmentation & Automation

Selected Partners

Clients & Brands

Trusted by enterprise, scale-up, and education partners to grow funnels and performance.

Referees

What Leaders Say

Portrait of Mark Byrne
“I've had the pleasure of working with Josh for many years [...] His ability to tackle challenges head-on and find innovative solutions is nothing short of impressive. Josh is a superstar in every sense [...]”

Mark Byrne · Co-Founder: XGrowth | Digital 22

Portrait of Andrew Jackson
“Josh [has a] [...] creative mind and a fantastic work ethic. Josh has a real passion and drove some great initiatives during his time with Intercity. I would highly recommend Josh.”

Andrew Jackson · CEO / Director Intercity Technologies

Portrait of Sylvia Eberl
“[Josh] is exceptionally self-driven and proactive, always taking the initiative to move things forward. His highly structured approach ensures efficiency, and he consistently gets things done, delivering [...] results. He's a reliable and valuable [...] team-leader.”

Sylvia Eberl · EMEA Director Avidly

Career Timeline

Experience

2025 – Present

OCU | Group Senior IM&T Project Manager

  • Deliver digital transformation projects including workforce management, master data, and scheduling systems.
  • Manage end-to-end delivery and governance across project lifecycles, tracking milestones, earned value, and risk.
  • Partner with PMO to standardise governance templates and lifecycle processes used across PRISM programmes.
2024 – 2025

Avidly (HubSpot Diamond Partner) | Global Head of Digital & Operations

Managed team size: 5

  • Owned growth performance across multiple digital products, focusing on traffic quality, conversion, and ROI.
  • Established digital project operations team, optimising global revenue streams and lifecycle outcomes, reporting directly to the CEO / CFO.
  • Managed agency P&L, exceeding budget targets by 10% in 2025 with weekly ROI reporting.
  • Improved resource visibility by 40% and reduced overwork through project scheduling and governance.
  • Established AI experimentation and optimisation culture across CRM workflows and automation.
2022 – 2024

Avidly (HubSpot Diamond Partner) | Director of Customer Experience

Managed team size: 18

  • Reduced client churn to under 5% by re-developing lifecycle management across CRM, CMS, and marketing ops systems.
  • Streamlined workflows, boosting team profitability by over 10% while delivering full digital projects to 200+ clients.
  • Developed client programmes, securing long-term partnerships across CRM, technical, and digital projects.
  • Standardised delivery methodologies for digital campaign activity.
2021 – 2022

Avidly (HubSpot Diamond Partner) | Regional Director & Head of Strategy

Managed team size: 5

  • Owned digital marketing strategy across web, HubSpot, social, and paid channels for multiple brands.
  • Led all AMER marketing on-site, managing office, employment, P&L, and CX teams; boosted EBITDA by 4.5x within 6 months.
  • Supported AMER clients with ARR £3m+ as primary point of contact.
  • Directed regional digital initiatives, achieving profit growth and NPS of 80+.
2020 – 2021

Avidly (HubSpot Diamond Partner) | Head of Marketing Strategy

Managed team size: 6

  • Managed project delivery for personal and team clients across numerous technical and B2B industries exceeding £5m+ ARR.
  • Enhanced team collaboration across EMEA and USA, achieving significant engagement improvements.
  • Implemented data-driven campaigns, refining international campaign reporting structures and resource management.
2017 – 2019

Intercity Technology (HubSpot Manager) | Digital Strategy Manager

Managed team size: 3

  • Coordinated teams and agencies to deliver marketing solutions including full web, branding, and paid media relaunch.
  • Led initiatives boosting web conversions from 0.03% to 2.6% with CRM (HubSpot) integration and digital planning.
  • Grew web traffic 26% in 12 months through digital strategy implementation.
2015 – 2017

CMG | Strategy & Marketing Manager - UK

  • Delivered in-house WMS implementation and digital transformation, driving 50% revenue growth.
2014 – 2015

Flexwork Group | Digital Manager - UK

  • Oversaw multi-site system rollout for web, CRM, ERP, warehouse management, and operational improvements.
2012 – 2014

CSC | Project / Service Delivery Manager - UK

  • Delivered projects across operations and service management.

Education & Certifications

Academic Background

  • BSc Economics & Business Management, University of Leeds (with honours) — Corporate Finance, Mathematics, Statistics, Econometrics
  • APM | Project Management Certificate
  • CMI | Level 5 Coaching and Mentoring Certificate
  • PPL NR | Private Pilot License

Outside Work

Active video gamer (PC, Xbox), Aviation (PPL Licensed), hiking, photography, and time with my 3yo daughter.

Contact

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Growth Manager · Digital Strategy · CRM Leadership