Impression
Impression is a multi-award winning, high growth digital marketing agency based in Nottingham, London and Manchester.
We are Digital Growth Specialists helping ambitious global brands push boundaries. We define and deliver integrated digital strategies that transform our clients from market players to market leaders. As we embark on another year of accelerated growth we’re looking for a Marketing Technology Specialist to help us lead the charge.
Our agency wouldn’t be what it is today without our incredible people. Our diverse team encompasses expertise across the digital landscape which enables us to accelerate change and results, driving business growth faster. Our collaborative, creative and inclusive culture helps build our reputation as a leading digital employer and we are committed to nurturing and developing people to their full potential.
Recognising that we are a part of something much bigger, we’re on a mission to use business as a force for good. We’re actively committed to creating a positive impact for our people, planet and community.

REQUIREMENTS

To be considered for the Senior Marketing Technology Specialist role, you will need to demonstrate:

• Proficiency in JavaScript, with experience building and debugging custom tags, variables, and triggers within Google Tag Manager.
• Familiarity with HTML and CSS for troubleshooting tracking issues.
• Strong understanding of website architecture (eg. Servers, DNS routing, Cookies)
• Hands-on experience with Google Tag Manager (including server-side) and version control/publishing workflows.
• Strong understanding of Google Analytics 4, including event-based measurement, BigQuery export, and data stream configuration.
• Ability to design, configure, and audit tracking architectures and data layers.
• Proficiency with browser developer tools to debug tracking and resolve performance or duplication issues.
• Knowledge of privacy compliance frameworks (GDPR, CCPA), CMP integrations, and data governance principles.
• Strong communication skills for stakeholder management and technical documentation.
• Ability to manage multiple projects and deadlines, while proactively learning and adopting new technologies.

THE ROLE

We are looking for an experienced Marketing Technology Specialist (Analytics) with a strong background in web technologies, analytics, and digital marketing. This role is about building and managing complex tracking solutions & solving challenging measurement problems. You’ll be hands-on with Tag Management Systems, web/app analytics platforms, consent management tools and ads platforms, ensuring our clients have reliable, privacy-compliant data capture for decision-making.
A strong understanding of JavaScript, HTML and CSS will still be important, but equally critical is your ability to design measurement solutions, integrate marketing platform tracking, and translate business requirements into technical solutions. From configuring advanced GA4 implementations to deploying server-side Google Tag Manager, you’ll be solving real-world marketing measurement challenges across a wide variety of client websites and marketing stacks.
You’ll sit within our Media Solutions team, working closely with our delivery teams to deliver robust MarTech solutions. Over time, this role has the scope to evolve further into experimentation strategy, advanced automation, and thought leadership.

RESPONSIBILITIES

As a Senior Marketing Technology Specialist at Impression, you will:

• Manage technical marketing platform projects, including website tagging, tracking, and analytics implementations.
• Write, and deploy custom JavaScript snippets for Tag Management Systems (TMS) such as Google Tag Manager.
• Architect and document tracking solutions, including data layer schema design, mapping KPIs to tracking requirements, and producing technical specifications for developers.
• QA and troubleshoot implementations using tools like Chrome DevTools, Tag Assistant, Omnibug, and pixel helper extensions.
• Integrate Consent Management Platforms (CMPs) such as OneTrust, CookieBot or CookieYes with TMS, ensuring tags respect consent choices and advanced Google Consent Mode is correctly configured.
• Share expertise internally through coaching, documentation, and training, as well as externally through marketing efforts including blogs, webinars or public speaking.

To be considered for the Senior Marketing Technology Specialist role, you will need to demonstrate:

• Proficiency in JavaScript, with experience building and debugging custom tags, variables, and triggers within Google Tag Manager.
• Familiarity with HTML and CSS for troubleshooting tracking issues.
• Strong understanding of website architecture (eg. Servers, DNS routing, Cookies)
• Hands-on experience with Google Tag Manager (including server-side) and version control/publishing workflows.
• Strong understanding of Google Analytics 4, including event-based measurement, BigQuery export, and data stream configuration.
• Ability to design, configure, and audit tracking architectures and data layers.
• Proficiency with browser developer tools to debug tracking and resolve performance or duplication issues.
• Knowledge of privacy compliance frameworks (GDPR, CCPA), CMP integrations, and data governance principles.
• Strong communication skills for stakeholder management and technical documentation.
• Ability to manage multiple projects and deadlines, while proactively learning and adopting new technologies