Head of Tech SEO

Who are we?

Yellowball is a leading London-based digital marketing agency specialising in SEO, PPC & website design, partnering with brands and businesses of all shapes and sizes. With passion, creativity, and a sharp commercial focus embedded in everything we do, we're trusted by organisations everywhere to deliver real impact and results.

We love what we do and provide a great ROI-focused service. As an agency, we're quickly scaling both in terms of headcount and the variety of clients we engage with.

Who are we looking for?

We're looking for a Technical SEO Lead to take ownership of Yellowball's technical SEO offering, shaping how we deliver technical audits, reporting frameworks, and advanced search strategies across our client portfolio. This is a hands-on, strategic role, reporting to our Head of SEO, and ideal for someone who thrives on innovation, is passionate about data and AI, and wants to push the boundaries of what SEO can do.

You'll be a senior voice within the team supporting other SEO managers with technical challenges, leading client projects, and driving the development of our AI-powered GEO offering. This is a brilliant opportunity for someone with strong technical expertise and an appetite to lead from the front.

What you'll be doing day-to-day

• Lead the technical SEO function at Yellowball setting strategy, frameworks, and standards across campaigns.
• Deliver and oversee in-depth technical SEO audits, identifying issues and prioritising fixes based on SEO impact.
• Collaborate with SEO, content and development teams to deliver technically sound, high-performing campaigns.
• Own our reporting approach standardising Looker Studio dashboards and evolving how we track technical SEO performance.
• Drive innovation across the SEO function from custom scripts to automation and AI search integration.
• Lead the evolution of our AI/GEO offering, ensuring it supports visibility in emerging AI search experiences.
• Support SEO Managers and Account Leads by troubleshooting complex technical issues and delivering solutions.
• Join client calls, present audits and insights, and represent the technical SEO voice both internally and externally.

Key responsibilities

Technical SEO delivery

• Lead advanced audits and create detailed technical backlogs
• Optimise architecture, internal linking, crawlability and URL structure
• Improve performance: site speed, Core Web Vitals, mobile responsiveness
• Resolve indexing issues including JavaScript rendering, crawl errors and canonicalisation conflicts
• Guide schema strategy and implementation (structured data markup)
• Liaise with developers to ensure SEO implementation is executed correctly
• Manage setup and integrity of GA4, GSC and tag management systems
• Conduct log file analysis and manage large-scale crawling strategies for enterprise-level sites

Reporting & analytics

• Own our Looker Studio reporting templates and rollout
• Ensure reporting consistency across client accounts and teams
• Troubleshoot and support bespoke reporting needs
• Integrate AI visibility reporting into our standard dashboards
• Champion data clarity and drive insights that shape strategy

Team enablement & training

• Act as the senior escalation point for technical SEO issues
• Deliver monthly technical SEO training for the wider team
• Provide ongoing mentorship and documentation
• Support new starters with tooling and setup guidance

Innovation & AI/GEO strategy

• Lead development of our GEO/AI search service
• Optimise content and strategy for visibility in AI-generated search results (SGE, ChatGPT, Perplexity etc.)
• Stay on top of emerging trends in AI, LLMs, schema and search behaviour
• Build and test scripts or automations to streamline our tech SEO work
• Develop forecasting models and case studies to support the AIO offering

Cross-team collaboration & new business

• Join pitch meetings and support proposals with technical insights
• Support project scoping and resourcing for site migrations or technical one-offs
• Work closely with devs to support best practices in site builds and rebuilds

Key competencies

• Expert-level knowledge of GA4, GSC, Tag Manager and Looker Studio
• Strong ScreamingFrog skills able to analyse and explain crawl results clearly
• Demonstrable experience with large-scale SEO and programmatic SEO strategies
• Excellent knowledge of international SEO and hreflang best practice
• Deep understanding of CMS platforms including WordPress and Shopify
• Familiarity with log file analysis, crawl budget, JavaScript SEO, and rendering challenges
• Commercial mindset – ability to scope profitable projects, upsell effectively and prioritise based on client goals
• Working knowledge of Python, JavaScript or Google Apps Script is a strong plus
• Proactive, curious and adaptable – you stay ahead of technical and algorithmic changes
• Comfortable presenting to clients and senior stakeholders with clarity and authority

Package & benefits

• Salary: £60,000 depending on experience
• Location: Hybrid – 1 day/week in our London Bridge office
• Holidays: 25 days + UK bank holidaysSupport: Personal development budget, training opportunities, and regular 1:1s
• Team culture: Socials, a 4-day working fortnight, and a commitment to flexible, sustainable working
• Tech: Access to industry-leading tools and innovation support

Not sure you meet every requirement?

Research shows underrepresented groups are less likely to apply unless they meet 100% of the criteria. At Yellowball, we're building a team that brings diverse perspectives and skills, so if you're excited about the role but not sure if you "tick every box", we still encourage you to apply. Let us know if you need any adjustments during the hiring process and we'll do our best to support you.

Job Type: Full-time

Pay: £55,000.00-£60,000.00 per year

Benefits:

• Additional leave
• Company events
• Company pension
• Work from home

Work Location: Hybrid remote in London SE1 9PA