What is a Technical SEO Engineer? A Technical SEO Engineer is a specialist who designs and optimises the underlying architecture of websites so they are fast, indexable, secure, and fully aligned with search engine guidelines. A skilled Technical SEO Engineer ensures that your site ranks higher, converts better, and stays ahead of algorithm changes and AI‑driven search experiences.
In today’s competitive landscape, especially for businesses in London UK targeting English, Italian, Spanish, and French audiences worldwide, having a top‑tier Technical SEO Engineer is no longer optional. It is the foundation for sustainable growth, where small technical refinements can unlock massive gains in traffic, visibility, and revenue.
Technical SEO Engineer Case Studies
Leading Technical SEO Engineers have achieved outstanding results by fixing core technical issues and optimising site performance. Below are three modern case studies that show what can be achieved with the right technical intervention (source and date only, no links).
B2B SaaS Platform – 118K Organic Clicks in 6 Months
A European SaaS company increased its organic clicks from 4,18K to 118K in six months by resolving crawlability and indexing errors, improving Core Web Vitals, and refining internal linking. Average position improved from 19.7 to 10.4 and impressions grew from 278K to 5.52 million. (Source: LinkedIn case study, 2026‑01‑01)
E‑Commerce Store – Page Health from 48 to 95
A mid‑sized e‑commerce site improved its Page Health score from 48 to 95 and its Page Authority from 17 to 29 after a comprehensive technical SEO overhaul. Organic traffic and conversion rates followed an upward trend within a few months. (Source: Oz Global B2B blog, 2023‑10‑04)
Niche Content Site – World‑Record Ranking in 11 Days
A content‑focused website achieved first‑position ranking for a highly competitive keyword in just 11 days using precise technical SEO, structured data, and meticulous internal architecture. This rapidly increased referral traffic and lead intake. (Source: agency‑style case study, 2023)
Alex Costin as a Technical SEO Engineer
Alex Costin is a seasoned Technical SEO Engineer based in London UK with over 17 years of international experience in SEO, web development, and digital marketing. His background blends deep technical expertise with strategic business insight, enabling him to turn complex website architectures into high‑performing, search‑friendly platforms that drive measurable ROI.
- Unconventional Market Research & Competitor Intelligence: Alex carries out deep market scans, customer behaviour analysis, and competitor SWOT assessments, then prioritises findings by business impact so decision‑makers can act quickly and profitably.
- Technical SEO & Architecture: As a Technical SEO Engineer, he audits site structure, crawlability, and indexation, then implements changes that align with best practices in site‑map design, robots.txt, schema, and Core Web Vitals.
- SEM & Performance Marketing: With more than 12 years of SEM experience, he optimises paid campaigns for higher quality scores, lower CPCs, and better conversion rates. This integration allows organic and paid strategies to reinforce each other.
- Off‑Page & Backlink Strategy: Alex leverages his own content network and partner websites to build a strong, natural backlink profile that supports on‑page SEO and strengthens long‑term domain authority.
- AI‑Driven Digital Workflows: At an expert level, Alex uses AI tools to automate content creation, reporting, and data analysis, accelerating delivery and reducing the need for large in‑house teams or external agencies.
Hire a Top Technical SEO Engineer in London
Alex Costin offers flexible, high‑impact engagement as a Technical SEO Engineer for businesses in London and beyond. Daily rates start at as little as £1,000 per day, with AI‑powered workflows and robust technical skills that can often surpass the output of five full days from a traditional SEO agency.
Technical SEO Engineer excellence with 100/100 benchmarks
Landing page quality refers to how fast, accessible, well‑structured, and user‑friendly a page is for both visitors and search engines. It includes clean HTML, responsive layouts, semantic markup, rapid loading times, and mobile‑first compatibility, all of which directly influence how Google and AI‑driven search models rank and recommend pages.
High landing page quality helps websites rank higher in organic search and in AI‑powered search interfaces because engines and AI systems favour pages that load quickly, are easy to navigate, and provide a frictionless experience. When technical SEO is executed correctly, pages are more likely to appear in featured snippets, “About this result” boxes, and AI‑generated summaries that drive qualified traffic.
To see Technical SEO Engineer excellence in action, you can review scores for three of Alex’s live projects on Google PageSpeed Insights. Each of these sites achieves a perfect 100/100 across Performance, Accessibility, Best Practices, and SEO, demonstrating his ability to deliver world‑class technical foundations.
Hire Alex Costin as your business Technical SEO Engineer
Market Research
Alex’s background in market research and competitive analysis allows businesses to gather and interpret both primary and secondary data, translating raw information into strategic insights. This data‑driven approach helps you identify hidden opportunities, understand customer journeys, and outperform competitors with faster, smarter decisions.
Website Development
Alex can deliver a brand‑new, fully optimised website in as little as two weeks, built on a fresh server using Drupal and Bootstrap. Each project is engineered to reach a 100/100 PageSpeed score, outperforming most local and national competitors that rely on generic WordPress templates and slower, less‑maintained infrastructures.
SEO
By combining deep keyword research with maximum landing page quality, Alex helps businesses dominate organic search rankings. His off‑page strategy, powered by more than 5,000 blog posts written by him plus another 5,000+ posts from partner websites, creates a backlink profile and authority layer that very few UK businesses can match.
Artificial Intelligence
Alex uses AI to automate and scale content creation, social media campaigns, and repetitive tasks, significantly reducing the need for additional employees or external agencies. This AI‑augmented workflow not only speeds up delivery but also lowers long‑term costs while preserving high creative and technical standards.
Performance
Weekly performance reports form the backbone of Alex’s strategy, allowing him to review campaigns, compile lists of improvement ideas, and discuss them with decision‑makers. After approval, he implements changes quickly, ensuring that every campaign becomes more efficient and drives a higher return on investment over time.
Technical SEO Engineer summary
Choosing Alex Costin as your Technical SEO Engineer in London means partnering with a specialist who delivers guaranteed results through technical precision, AI‑driven workflows, and in‑depth market understanding. Whether you need a new website, a full SEO overhaul, or an AI‑enhanced marketing stack, his approach is designed to outperform local agencies and give you a clear competitive edge.
From English, Italian, Spanish, and French audiences to AI‑driven discovery and traditional organic rankings, Alex’s work is built to be found, trusted, and converted. His portfolio of 100/100 PageSpeed projects and strong off‑page ecosystems proves that he can turn technical SEO engineering into real business growth.
Turn your site into a Technical SEO Engineer powerhouse
Start a conversation with Alex Costin today and discover how his Technical SEO Engineer services can transform your online presence. Get insights, solutions, and a clear roadmap tailored to your business goals.