Full-Stack Digital Marketer
AlexCostin 2026
Technical SEO, PPC, Web Development, Multilingual Content, Analytics & CRO Specialist in London.
Alex Costin is a full-stack digital marketer who combines developer-level technical precision with senior-level commercial strategy. With more than 17 years of hands-on experience, he helps businesses turn complex market data, search behaviour and website performance into clear, measurable growth.
His work spans the complete digital marketing ecosystem: market research, competitor intelligence, technical SEO, paid search, paid social, content strategy, website architecture, creative production, analytics and conversion optimization. This end-to-end approach allows him to identify opportunities that specialists working in isolated channels often miss.
Professional Profile
Alex Costin’s career began in development, where he learned how websites are built, how they perform and where they fail. That technical foundation became the basis for a marketing career defined by precision, experimentation and measurable outcomes. Rather than treating SEO, paid media, content and development as separate disciplines, he approaches them as one connected growth system.
Today, he works with businesses across Europe and international markets to design campaigns that attract qualified traffic, improve user experience and convert attention into revenue. His strategies are informed by deep market research, customer behaviour analysis and competitor benchmarking, then prioritised by commercial impact.
He is particularly known for building fast, technically strong websites, creating SEO content ecosystems, reducing wasted advertising spend and developing multilingual campaigns that perform across different markets and cultures.
Years’ experience
Projects launched
First-page keywords
Websites created
The Full-Stack Advantage
Many marketing teams separate strategy, implementation and analysis across different people or agencies. Alex Costin’s advantage is that he can operate across the entire journey — from identifying the opportunity to building the platform, attracting traffic, measuring performance and improving conversion.
Research First
Every effective campaign begins with evidence. Alex conducts market scans, customer research and competitor analysis to understand where demand exists, where competitors are weak and which opportunities offer the greatest commercial return.
Build for Performance
Websites are not only visual assets; they are conversion engines. Alex builds responsive, fast and search-friendly platforms using Drupal and Bootstrap, with clean front-end architecture and strong technical foundations.
Optimize Continuously
Growth is never a one-time project. He monitors performance across search, paid media, user behaviour and conversion funnels, using data to refine campaigns, landing pages and content over time.
Core Expertise
Alex Costin’s expertise covers the major disciplines required to build and scale a modern digital presence. Each area reinforces the others, creating a system where technical quality, content relevance, paid efficiency and conversion design work together.
Technical SEO
Alex provides in-depth SEO audits, technical diagnostics, content strategy and off-page planning. His work includes improving site architecture, strengthening internal linking, optimizing Core Web Vitals and building content ecosystems that support sustainable organic visibility.
PPC & Paid Media
With more than 12 years of SEM experience, he manages and optimizes campaigns across Google Marketing Platform, Microsoft Advertising and paid social. His focus is on improving quality scores, reducing wasted spend and increasing return on investment.
Web Development
He designs and builds conversion-focused websites using a powerful Drupal back end and a clean, responsive Bootstrap front end. His sites are engineered for speed, usability, search visibility and long-term scalability.
Content Strategy
Alex creates SEO-led blogs, landing pages, newsletters, print assets and social content. The objective is not simply to publish more, but to create content that attracts qualified visitors and moves them toward a commercial decision.
Analytics & CRO
He uses performance dashboards, funnel analysis and testing to understand what drives results. By identifying friction points and testing improvements, he turns traffic into leads, enquiries and sales more efficiently.
Creative & Social
His capabilities also include branding, photography, graphic design, video, social strategy and influencer network development. This creative layer helps brands communicate clearly and stand out in competitive markets.
A Practical SEO Philosophy
Technical excellence comes first
Search engines reward websites that are fast, accessible, well structured and easy to crawl. Alex begins with the technical foundation because even the strongest content strategy can underperform if the website creates friction for users or search engines.
His technical work focuses on clean architecture, responsive design, strong Core Web Vitals, efficient page performance and a user experience that supports both discovery and conversion.
Content must earn attention
Alex builds SEO content ecosystems rather than isolated blog posts. Each page has a clear purpose, a defined audience and a role within the wider customer journey. This approach helps websites build topical authority while giving visitors useful, relevant answers.
He also uses strategic off-page SEO and backlink campaigns to strengthen on-page performance, helping brands compete beyond the limits of their own website.
The result is an SEO strategy designed for durability: not short-term ranking tactics, but a repeatable system that improves visibility, authority, user experience and commercial performance over time.
PPC Built Around Efficiency
Paid media should not simply generate clicks; it should generate profitable outcomes. Alex Costin’s PPC methodology focuses on the relationship between ad relevance, landing-page quality, user intent and conversion value.
Reduce wasted spend
He identifies inefficient keywords, poor-quality traffic, weak landing pages and misaligned campaign structures. By improving ad relevance and landing-page quality, he has reduced average cost per click to as little as 10% of competitors’ spend in certain campaigns.
Improve conversion quality
Alex treats the landing page as part of the advertisement. He aligns messaging, offers, design and calls to action with the intent behind each search query, helping campaigns convert more consistently.
Use data to guide decisions
Campaign decisions are based on evidence rather than assumptions. He monitors performance across Google Marketing Platform, Microsoft Advertising and Adobe Experience Cloud, translating results into clear recommendations for stakeholders.
Connect paid and organic
Paid search can reveal high-intent language, converting offers and customer objections. Alex uses these insights to strengthen SEO content, landing pages and broader digital strategy.
Measurable Results
Alex Costin’s work is defined by outcomes that can be measured, repeated and scaled. His campaigns are designed to improve visibility, reduce acquisition costs and create stronger commercial performance.
Potential PPC cost reduction achieved by maximizing ad and landing-page quality, improving relevance and eliminating inefficient spend.
Fastest reported time to reach position one in search results, even in highly competitive niches, through focused technical and content optimization.
Performance-focused website builds designed to meet demanding speed, usability and technical-quality standards.
First-page keywords achieved
Digital projects launched
Websites designed and built
Websites That Perform
A high-performing website must satisfy three audiences at once: the customer, the search engine and the business. Alex designs websites that make it easy for users to find what they need, easy for search engines to understand the content, and easy for the business to measure results.
Conversion-ready design
Every page is structured around a clear user journey. Navigation, messaging, visuals and calls to action are arranged to reduce hesitation and guide visitors toward meaningful action.
Search-friendly architecture
Alex builds websites with clean structure, logical hierarchy and SEO-ready content foundations. This makes it easier for search engines to crawl, index and rank the site effectively.
Speed and scalability
Using Drupal and Bootstrap, he creates websites that remain stable and responsive as content, traffic and business requirements grow. Performance is treated as a core commercial feature, not an afterthought.
Professional Experience
360° Digital Marketing Expert — TuneMyWebsite
March 2015 – Present
Alex works directly with business owners to define commercial goals, conduct market research and analyse competitors. He transforms those findings into comprehensive marketing plans covering branding, website development, SEO content, social funnels, paid campaigns and performance dashboards.
His work consistently focuses on building penalty-free “Perfect Websites” that combine strong landing-page quality with SEO strength and SEM efficiency. Across EU markets, this approach has supported PPC cost reductions of up to 90%.
Marketing Manager — JJSmith
February – May 2023
Alex was brought in to elevate the brand, refine SEO and SEM activity and support wider digital initiatives. While collaborating with an external agency, he identified issues including bot traffic, wasted Google Ads budget and overreliance on templates, which contributed to strategic misalignment.
Digital Operations Manager — Unboxed 2022
August – November 2022
For this UK Government Department for Culture, Media & Sport initiative, Alex led day-to-day digital operations. He managed team coordination, performance reporting, KPI monitoring, cross-functional collaboration, training, quality assurance and process improvement.
He worked alongside content, social, creative and photography teams to grow traffic, improve user experience and deliver meaningful website enhancements.
Multilingual Market Experience
Digital growth does not happen in one language or one market. Alex has designed and executed multilingual campaigns in English, French, Italian, Spanish, Russian, Chinese and other languages, helping brands communicate with greater cultural and commercial relevance.
Italian
Native-level fluency, supporting content, SEO and campaign localization for Italian-speaking audiences.
Spanish
Native-level fluency, enabling campaigns and content strategies across Spanish-speaking markets.
French
Native-level fluency, supporting multilingual SEO, advertising and customer communication.
Catalan
Working proficiency, useful for regional campaigns and localized audience engagement.
Portuguese
Working proficiency, supporting expansion into Portuguese-speaking markets.
German
Working proficiency, helping brands adapt messaging for German-speaking audiences.
Skills & Certifications
Alex’s skill set combines strategic marketing, technical implementation and creative production. This breadth allows him to lead projects independently or collaborate effectively with specialist teams.
2019–2021
2017–2021
2017–2021
2016–2019
Coventry, UK — 2011
Bucharest, Romania
How Alex Works
Alex’s process is structured but adaptable. It begins with understanding the business, then moves through research, implementation, measurement and continuous improvement.
1. Discover
Define commercial goals, understand the audience and assess the competitive landscape.
2. Plan
Translate insight into a prioritised roadmap across SEO, paid media, content, web and creative.
3. Execute
Build websites, campaigns, content and funnels with technical quality and commercial focus.
4. Improve
Measure performance, identify opportunities and refine the strategy for compounding results.
Ideal Collaborations
Alex works best with businesses that want more than surface-level marketing activity. He is especially valuable to organisations that need a strategic partner capable of connecting technical execution to commercial growth.
Growth-focused businesses
Companies seeking to enter new markets, improve lead generation or scale existing digital channels benefit from his ability to align strategy, execution and measurement.
Brands with technical challenges
Businesses with slow websites, poor search visibility, complex content needs or underperforming paid campaigns can benefit from his combined development and marketing expertise.
Multilingual organizations
Brands operating across multiple countries and languages can use his experience to create campaigns that feel locally relevant while remaining commercially consistent.
Teams needing clarity
Alex also trains and mentors internal teams, helping them become more confident and self-sufficient in SEO, content, analytics and digital operations.
Let’s Build Measurable Growth
SEO · PPC · Web Development · Multilingual Content · Analytics · CRO
Whether the goal is stronger organic visibility, more efficient paid acquisition, a faster website or a complete digital growth strategy, Alex Costin brings the technical depth and marketing experience needed to deliver measurable results.