We're hiring. See our open rolesWe're hiring. See our open roles See now →
← Work with us / Open roles

Data and Analytics

Senior Tracking & Tagging Specialist (MarTech)

Own the conversion data that our paid media teams rely on to optimise.

£45,000 to £50,000

  • 1 day London office (Tuesday), otherwise remote
  • Permanent, full-time, 37.5 hours
  • Reports to Kai, our Senior Solutions Engineer

About the role

At Propel Digital, we combine digital marketing, technology and data to help our clients improve performance. We’re looking for a Senior Tracking & Tagging Specialist to make sure our advertising platforms receive reliable, high-quality conversion data that supports better bidding, budget allocation and commercial outcomes.

You’ll own the connections between our clients’ websites, CRM and ecommerce systems, and advertising platforms. This includes maintaining first-party data integrations, improving offline conversion uploads and resolving tracking issues that affect campaign optimisation.

Working closely with Kai, our Senior Solutions Engineer, and our paid media teams, you’ll use tools such as GTM, GA4 and server-side tracking to support accurate measurement. Success means giving our teams conversion signals they can trust and use to improve performance.

Who are we?

We are Propel Digital, a performance marketing consultancy founded in 2018 to offer the industry a new service model. Our co-founders Rob and Jack started out at Periscopix and Brainlabs, so they’ve seen first-hand what it takes to succeed in the agency world. We put people first, whether that’s our team, our clients or the real people we advertise to. We treat every client differently because every business is different, and we treat our people the same way. That approach has helped us run industry-leading campaigns and deliver first-class client service for some of the UK’s biggest brands. Now we’re building the agency of the future, with AI at the heart of how we work.

Our values are flexibility, honesty, empathy, friendliness, humility and proactivity. We expect you to bring them to every client and colleague interaction.

Specific responsibilities

  • Own conversion data quality across Google Ads, Meta and other advertising platforms, ensuring the right actions and values are recorded and available for optimisation.
  • Set up, maintain and troubleshoot Google Ads and Meta offline conversion uploads, Meta Conversions API and Google Ads enhanced conversions.
  • Identify and resolve missing conversions, duplicate events, incorrect values, event matching issues and discrepancies between platforms and source systems.
  • Build and maintain connections between CRM and ecommerce systems, such as HubSpot and Shopify, and advertising platforms.
  • Work with paid media teams to select conversion actions, lifecycle stages and values that reflect client goals and support bidding and spend decisions.
  • Monitor data pipelines and integrations, investigate failures and validate that data reaches its destination accurately and consistently.
  • Implement and debug GTM, GA4, call tracking and server-side tracking to support reliable advertising platform measurement.
  • Run tracking audits, prioritising issues by their impact on campaign optimisation and commercial decisions.
  • Work with consent management tools and relevant stakeholders to ensure implementations respect users’ consent choices and data governance requirements.
  • Explain technical findings and recommendations clearly to colleagues and clients.
  • Use AI tools to support implementation, troubleshooting and documentation, checking outputs for accuracy.

What we’re looking for

You care about whether the data helps our teams make better decisions and improve client results. You prioritise issues that affect bidding, spend and conversion quality, and can explain why a technical fix matters commercially.

You’re hardworking, curious and willing to get stuck into the detail. You’ll work closely with Kai and our paid media specialists, sharing knowledge and helping turn technical findings into practical improvements.

Required experience and skills:

  • Practical experience implementing and troubleshooting conversion tracking for paid media, particularly Google Ads and Meta.
  • Experience with offline conversion uploads for Google Ads and Meta, including validating data and investigating upload or matching issues.
  • Experience connecting first-party CRM or ecommerce data with advertising platforms, using systems such as HubSpot, Shopify or comparable tools.
  • An understanding of Meta Conversions API and Google Ads enhanced conversions, including their role in improving conversion signals.
  • Ability to investigate conversion quality issues, including duplication, missing events, incorrect revenue values and discrepancies between systems.
  • An understanding of how conversion actions, lead quality, customer lifecycle stages and conversion values affect bidding and budget allocation.
  • Sufficient proficiency in GTM and GA4 to implement, debug and validate tracking that supports advertising platform accuracy.
  • Familiarity with server-side tracking and call tracking systems.
  • Confident use of AI tools, with the ability to write clear prompts, assess outputs and apply them to practical tasks.
  • A collaborative approach, attention to detail and a willingness to take ownership, investigate problems and learn.

We welcome candidates whose strongest experience is in GTM and GA4, provided they understand how to apply those skills to improve advertising platform conversion quality and media outcomes.

Nice to have:

  • Experience with conversion tracking for Microsoft Ads, LinkedIn or TikTok.
  • Experience integrating with APIs and automating data workflows, including authentication, pagination, scheduling and error handling.
  • SQL skills and experience using BigQuery or other cloud data warehouses.
  • Familiarity with Google Cloud services such as Cloud Run.
  • Python or JavaScript experience for data preparation, integrations or debugging.
  • Experience with data modelling, Looker Studio or comparable BI tools.
  • Interest in developing broader data engineering skills.

Requirements

You must have the right to work in the UK. We do not sponsor employment visas at this time. We are an equal opportunities employer and do not require a university degree.

What we offer

This is a permanent, full-time role at 37.5 hours per week. You can work around your own schedule, but we expect you to be available during core hours of 10am to 4pm, Monday to Friday, and to make sure your hours suit clients and colleagues. We have our own office in central London, where we work together one day a week (currently Tuesday for this team), and you’ll work from home the other four days.

  • 30 days annual leave plus public holidays
  • Vitality private health insurance
  • Employer pension contributions
  • Work from home bills contribution and home office allowance
  • 16 weeks fully paid maternity leave
  • Quarterly company socials, All-Hands meetings and team catch-ups

See all our benefits

Development and progression

Development and progression

You’ll join company-wide training sessions, and we’ll support you in developing your consultancy skills alongside your technical expertise.

The direct pathway runs from Senior Specialist to Associate Director, then Senior Director.

  1. You are here

    Senior Specialist

    Own conversion data quality across our clients’ advertising platforms.

    • Stretch into, alongside your role: Data engineering
    • Stretch into, alongside your role: AI and automation
  2. Associate Director

    Lead tracking and data strategy across several clients and develop the team.

  3. Senior Director

    Set the direction for data and measurement across the agency.

  1. You are here

    Senior Specialist

    Own conversion data quality across our clients’ advertising platforms.

    • Stretch into, alongside your role: Data engineering
    • Stretch into, alongside your role: AI and automation
  2. Associate Director

    Lead tracking and data strategy across several clients and develop the team.

  3. Senior Director

    Set the direction for data and measurement across the agency.

  • Promotion path
  • Stretch into, alongside your role

Side routes taken from this role’s responsibilities.

Your team

Who you’ll work with

Questions about the role? Message any of us on LinkedIn.

  • Headshot of Kai Loh

    Your line manager

    Kai

    Senior Solutions Engineer

    If you like solving problems properly rather than patching them, you’ll fit right in.

  • Headshot of Meghana Jhanwer

    Meghana

    Data Analyst

    Good data makes everyone’s job easier, and here you see the difference it makes for clients straight away.

  • Headshot of Jack Gossington

    Jack

    Co-founder

    We hire people who are curious about the business behind the ads, then give them room to grow.

How we hire

Four steps, at your pace

We move as quickly as you’re able to. We keep prep to a minimum because we respect your time, and we can meet outside normal working hours if that helps.

  1. Screening call

    A short call to get to know you and answer your questions.

  2. Interview

    A conversation with the team, usually by phone.

  3. Presentation or task

    Ideally in person, but it can be done by phone.

  4. Offer

    We’ll let you know quickly either way, and whatever the outcome, we’ll give you feedback.

For this role

Initial screening calls will be run by Alicia and Kai. We’ll ask you to talk us through a time you improved conversion quality in an advertising platform or fixed a CRM-to-ads integration. We’ll want to understand the problem, how you diagnosed it, how you validated the fix, and what changed in campaign performance or spend decisions. An anonymised example is welcome.

Apply

Apply for this role

If you don’t tick every box but you care about getting the data right and want to keep learning, we still want to hear from you.

Senior Tracking & Tagging Specialist (MarTech) · £45,000 to £50,000

PDF or Word

We’ll use your details and CV only to consider you for roles at Propel. See our privacy policy.