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


