# Senior On-Site SEO Specialist

| Field | Value |
|-------|-------|
| **Company** | Fortis Media |
| **Location** | Vilnius |
| **Posted** | 2026-04-02 |
| **Expires** | 2026-05-02 |

## Skills & Tags
`International SEO`, `SEO Strategy & Management`, `E-commerce SEO`

## What Makes This Opportunity Special
Join Fortis Media in Vilnius as a Senior On-Site SEO Specialist, driving visible impact across complex client websites and AI-driven discovery environments. You’ll blend strategic thinking with hands-on execution—from technical audits to multi-region optimization—delivering data-backed results. If you thrive at the intersection of content, structure, and business goals, this role will challenge and elevate your expertise.

## Job Description
At Fortis Media, we help businesses in complex industries grow through clear, trustworthy, and data-backed digital marketing. Our team works across SEO, outreach, paid media, content, advertising technology, and analytics to deliver measurable results for clients and meaningful, high-impact work for the people who build it. 
 
 We’re looking for a Senior On-Site SEO Specialist who can combine strategic thinking with hands-on execution across client websites. This role is for someone with strong on-site SEO expertise, solid technical SEO audit experience, and the ability to lead and execute SEO work across both traditional search and emerging LLM/GEO environments. 
 
 You should be able to connect content, structure, technical health, search performance, and business goals into one clear SEO approach. Strong spoken and written English is essential, as English is our working language. 
 
 **What You’ll Do** Lead and execute SEO and GEO/LLM optimization across client websites to improve visibility in both search engines and AI-driven discovery environments Lead technical SEO work across complex websites, including large-scale, JavaScript-heavy, or multi-region setups Plan and manage SEO migrations from preparation through post-launch stabilization Run complex on-site and technical SEO audits, turning findings into clear, actionable recommendations Build long-term SEO roadmaps that balance quick wins with sustainable growth across technical, content, and authority-building areas Identify scalable growth opportunities through data analysis, competitor benchmarking, and organic search trends Define and improve content architecture and internal linking strategies across client websites Conduct keyword research to uncover high-impact opportunities for content expansion and optimization Work closely with our Digital Account Strategist, Off-Site SEO, and Content teams to support client success and account growth Communicate SEO findings, recommendations, and progress clearly and confidently to clients Stay on top of algorithm updates, industry changes, and evolving SEO best practices, and apply them proactively Contribute SEO expertise to proposals by helping shape realistic scopes and practical solutions Help improve internal SEO processes and ways of working to support quality and scalability across the agency 
 
 **What we’re looking for** 5+ years of hands-on SEO experience Strong expertise in on-site SEO, including the ability to lead and execute GEO/LLM optimization work Ability to adapt content, structure, and optimization strategies for both traditional search and AI-driven discovery environments Solid experience with SEO audits and implementation Good understanding of crawlability, indexation, rendering, internal linking, redirects, canonicals, XML sitemaps, and site structure Experience supporting or leading SEO during migrations, redesigns, or CMS changes Confidence working with developers and explaining technical issues clearly and practically Strong analytical thinking and ability to prioritize based on impact A track record of driving measurable organic growth in traffic, visibility, leads, revenue, or conversions Strong understanding of tools like Ahrefs, Screamfrog, SE Ranking and similar Strong spoken and written English  
 
 **Nice to have** Experience in iGaming, fintech, SaaS, or enterprise SEO JavaScript knowledge Schema / structured data experience International SEO experience Basic HTML/CSS understanding A CRO mindset and the ability to connect SEO work to wider business outcomes 
 
 **Benefits** Hybrid work model with Mondays in the office Two additional remote days per week 30 Work From Anywhere days per calendar year 1 Personal Day per quarter 20 days of paid time off annually 1 additional PTO day for each year of service as a loyalty benefit Team buildings and an annual workation Friday quizzes to win a Wolt voucher Supplemental Health Insurance (after probation period) Salary: €3,000-€4,500 (keep in mind that we are open to discuss a different salary based on your proven expertise) 
 
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## About Fortis Media
Fortis Media is a Vilnius-based full-service SEO and PPC agency focused on regulated industries. ([fortismedia.com](https://www.fortismedia.com/en/))

They emphasize flexibility and tailor-made frameworks rather than one-size-fits-all solutions, aiming to address each client’s unique needs. ([fortismedia.com](https://www.fortismedia.com/en/))

Public statements highlight a culture of accountability, scalability, and profitability in marketing, and they tout helping regulated sectors achieve sustainable growth through data-driven, compliant marketing. ([fortismedia.com](https://www.fortismedia.com/en/))

Clients publicly praise the partnership orientation and results, with testimonials from TwinSpires and Drops Clinic noting strategic, customized SEO work. ([fortismedia.com](https://www.fortismedia.com/en/))

Ratings on public platforms are sparse—The Manifest lists a 5.0 rating based on a single review for a small Vilnius-based team (10–49 employees), while GoodFirms shows no reviews yet, so overall sentiment may not be fully representative. ([themanifest.com](https://themanifest.com/company/fortis-media))

## Frequently Asked Questions
## What does the role involve?
You will lead and execute SEO and GEO/LLM optimization across client websites to improve visibility in traditional search and AI-driven discovery environments. You’ll own technical SEO audits and implementation for complex sites, including large-scale, JavaScript-heavy, or multi-region setups. You’ll connect content, structure, technical health, search performance, and business goals into one clear SEO approach.

## What technical skills are essential?
Deep experience with on-site SEO, technical audits, and site health optimization is core. You should be comfortable with JavaScript-heavy architectures, crawlability, indexing, and site performance, and be able to translate findings into actionable fixes. Familiarity with SEO tooling, analytics, and data-backed decision making is a plus.

## How does collaboration work with teams and clients?
The role sits at the intersection of strategy and hands-on delivery, coordinating with content, analytics, and outreach to drive cohesive SEO programs. You’ll lead client conversations, present findings, and translate data into clear recommendations. Cross-functional collaboration is essential to align SEO with business goals.

## What growth opportunities does this role offer?
You’ll shape and scale SEO programs across diverse clients, with exposure to emerging GEO/LLM environments and AI-driven discovery. Leadership of audits and implementation allows you to elevate your strategic and technical profile. Fortis Media values continual learning and offers opportunities to mentor others.

## What makes Fortis Media's approach unique?
Fortis Media combines clear, trustworthy, data-backed digital marketing with a focus on complex industries to deliver measurable results. The team works across SEO, outreach, paid media, content, and analytics to create integrated solutions. You’ll be part of a culture that emphasizes impactful work and continuous improvement.

## What qualities help someone succeed in this role?
Strategic thinking paired with hands-on execution is essential. Strong written and spoken English is required to communicate findings clearly across teams and clients. You’ll thrive by connecting content, structure, technical health, and business goals into practical SEO plans.

## Apply
[Apply for this position](https://www.linkedin.com/jobs/view/senior-on-site-seo-specialist-at-fortis-media-4395340040)

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Source: [Senior On-Site SEO Specialist at Fortis Media](https://seo-vacancy.eu/job/senior-on-site-seo-specialist-fortis-media-vilnius)
