Technical SEO Lead

Salary range: £50,000 - £60,000.

Key things to note before applying

• This is a UK based role, with once weekly travel to the office in London Bridge, currently on a Thursday. Otherwise it is remote, work from home within the UK.
• There is no sponsorship available for this role.
• Previous agency experience (or equivalent) is required
• Application stages are listed at the end of this job specification

We’re looking for a deeply technical SEO leader to own and evolve Yellowball’s technical SEO function. This is a senior, hands-on role for someone who thrives on complex problem solving, advanced analytics, automation and AI-driven innovation.

You will shape our technical strategy, lead audits and migrations, own analytics integrity across GA4, GTM and GSC, build best-in-class reporting, and act as the agency’s technical authority internally and externally.

If you love debugging tracking setups, diagnosing large-scale indexation issues, analysing crawl logs, and building smart automation that saves hours, this role is for you.

What You’ll OwnTechnical Strategy & Delivery

• Define and evolve Yellowball’s technical SEO approach
• Lead complex technical audits, including GA4, GTM and advanced Screaming Frog audits
• Produce prioritised technical backlogs aligned to SEO impact
• Oversee implementation across architecture, crawlability, internal linking, URL structures, Core Web Vitals and structured data
• Troubleshoot advanced issues including JS rendering, index drops, crawl budget waste, canonical conflicts and log-file anomalies
• Lead technical input on migrations, re-platforms and redesigns from scoping to sign-off
• Manage large-scale sites of 500k+ URLs, including log file analysis and crawl strategy

Analytics & Tracking (Critical Requirement)

You will be the agency authority on GA4 and Google Tag Manager.

You must be able to:

• Architect and configure complex GA4 setups from scratch
• Design and implement robust GTM containers including events, triggers, variables and data layer configuration
• Audit and troubleshoot broken tracking, attribution issues, event duplication, cross-domain tracking, ecommerce tracking and consent mode
• Ensure clean data integrity and accurate measurement of SEO impact
• Diagnose tracking problems quickly and communicate solutions clearly to developers and clients

This role requires deep technical fluency, not surface-level familiarity.

Reporting & Data

• Own and standardise SEO reporting frameworks
• Build and maintain best-in-class Looker Studio dashboards
• Troubleshoot reporting discrepancies and data issues
• Leverage BigQuery, APIs, automation and AI to improve workflows
• Construct commercial forecasts and performance models

AI & Automation

• Build scripts, dashboards and automations using Python, JavaScript, Sheets and APIs
• Test and implement new SEO and AI tooling
• Develop AI-led reporting models across SEO and PPC
• Lead experimentation around GEO and AI search visibility
• Improve efficiency and quality through automation

Team & Commercial Impact

• Act as escalation point and mentor for the SEO team
• Run technical training sessions and upskill the team
• Represent Technical SEO in client meetings, including VIP accounts
• Support new business scoping for migrations, GA4 setups and technical projects
• Identify opportunities to grow client value through technical and data improvements

Essential ExperienceAnalytics & Tracking

• Expert-level GA4, GTM and GSC configuration and troubleshooting
• Strong understanding of data layers, event architecture and attribution
• Experience auditing and repairing complex tracking ecosystems

Technical SEO

• Advanced experience with Screaming Frog, including custom extraction, segmentation, JavaScript rendering, API integrations and crawl configuration for large sites
• Ability to translate complex crawls into clear, prioritised and commercially meaningful recommendations
• Deep understanding of crawling, indexation, rendering and crawl budget management
• Experience with large-scale and programmatic SEO
• International SEO including hreflang and domain structuring
• JavaScript SEO and headless CMS
• Core Web Vitals optimisation
• Schema strategy and implementation
• CMS expertise including WordPress and Shopify

Data & Automation

• Coding or scripting experience in Python, JavaScript or Google Sheets desirable
• API integrations and data manipulation
• Log-file analysis

Mindset

• Proactive and solutions-focused
• Commercially aware and able to scope profitable projects
• Confident leading technical conversations with developers and senior clients
• Passionate about AI, GEO and the evolving search landscape
• Supportive leader who enjoys mentoring others

Why This Role Is Exciting

• You will define how Technical SEO is delivered at a growing agency
• You will work on complex migrations and large-scale SEO challenges
• You will lead innovation across automation, AI and reporting
• You will influence product development and new service offerings
• You will operate at the intersection of SEO, data engineering and AI

If you are a true technical specialist who lives in GA4, Tag Manager and Screaming Frog, and loves solving complex SEO and data challenges, we would love to hear from you.

Step 1:

Please send your CV and a 5 minute Loom video (loom.com) as your cover letter to luci@weareyellowball.com

Applications without a Loom video will not be considered. Using Loom is a core part of the role to communicate both internally and with clients, and helps us assess your English fluency and communication skills.

In your video, please cover:

• Why you’re a great fit for this role
• Your relevant Technical SEO experience, tool stack fluency, recent successful projects and any other information that highlights your capabilities to excel in the role.
• Your previous agency experience - types of clients you worked with, types of projects you handled etc.
• Your current notice period
• Your salary expectations if they fall outside the range provided in the job description.

Step 2:

If successful, you will be invited to a short (20-30 minute) screening call with the Head of SEO to discuss your experience in more depth and give you the chance to ask additional questions about the role.

Step 3:

Following the screening call, shortlisted candidates will be invited to a 1 hour interview (via Teams) with the Head of SEO and founders. This will include a 20 minute presentation based on a take-home task that will be provided to you in advance, alongside general questions to assess suitability.