About Us – Marselling IT

We are an Estonian IT company building tailored web solutions for businesses – from the first idea to long-term management. Our goal is to help you stand out in the digital world: fast, secure and with measurable results.

Who we are

Marselling IT specializes in WordPress development and modern full-stack web solutions. For over 10 years we have helped businesses and individuals turn their ideas into working, fast and search-engine-friendly websites. We provide an end-to-end service: strategy, design, development, optimization and day-to-day management – all from one reliable partner.

Our mission

Our mission is to help businesses grow and stand out by delivering innovative, user-friendly and optimized web solutions. We believe a good website is not just a business card but a tool that brings in customers, saves time and grows revenue. That is why we always think about your business goals, not just the code.

Margus Roosipuu – founder and CEO of Marselling IT

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Founder & CEO

Margus Roosipuu

Software development · WordPress · AI & automation · SEO & web performance

Marselling IT is led by Margus Roosipuu – a versatile software developer with over 10 years of web development experience. We help businesses and individuals build fast, secure and growth-focused web solutions: WordPress development and website creation, full-stack web applications and SaaS platforms (React, Next.js, Python FastAPI), e-commerce, website management, SEO and performance optimization, and business process automation with AI. This is complemented by 6+ years of technical support experience at Fujitsu Estonia AS. We also offer more specialized solutions such as algorithmic trading systems and robots. Every service we offer is grounded in real practice.

WordPress development, website creation and management – custom themes, plugins and day-to-day maintenance
Full-stack & SaaS: React, Next.js, Python FastAPI (e.g. Legatia.eu, PREP Koolid)
AI & automation: RAG, EstBERT/NLP, n8n workflows and business process automation
SEO & web performance: LCP and PageSpeed optimization, reduced database load
Software development and IT support: custom solutions + 6+ years of technical support (Fujitsu Estonia AS)
Fintech (additional area): algorithmic trading systems and robots (MT4/MT5, Pine Script, Python)

Our values

Quality

We write clean, maintainable code and test every solution before launch. Each project meets modern security, speed and SEO standards.

Transparency

Clear communication, honest deadlines and understandable pricing. You always know what you pay for and where the project stands.

Innovation

We use modern technology – React, Next.js, Python, AI/ML – and optimize pages for both people and AI-powered search.

Commitment

We are a long-term partner, not a one-off vendor. The security and uptime of your site is our daily responsibility.

10+

years of experience

languages (ET / EN / FI)

A–Z

full service: from build to management

business day to reply to your enquiry

Why choose Marselling IT

A personal approach to every project – the solution is tailored exactly to your needs.
A modern technology stack: WordPress, React, Next.js, TypeScript, Python (FastAPI), AI/ML.
SEO and AI optimization so your site is visible in Google as well as ChatGPT, Gemini and Perplexity.
Security and speed are built in, not bolted on afterwards.
Long-term cooperation and daily management – we do not disappear after handover.

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