What kind of projects do you work on?

We focus on backend-heavy systems, from SaaS platforms and data infrastructures to complex integrations and custom APIs. If it requires thoughtful architecture, performance optimization, or large-scale deployment. It's in our zone.

Do you handle frontend or mobile apps as well?

Yes, we can work with frontend and mobile apps, but our core expertise is in backend systems and infrastructure.

Which technologies do you use most often?

We use modern technologies including Node.js, Python, React, Vue, and cloud platforms like AWS and Azure.

How do you ensure code quality and reliability?

We follow strict code review processes, implement comprehensive testing, and use continuous integration and deployment practices.

How does the collaboration process look like?

We work closely with our clients through regular communication, sprint planning, and transparent project management.

How long does a typical project take?

Project timelines vary based on complexity and scope, typically ranging from 3 to 12 months for medium to large projects.

What are your pricing models?

We offer flexible pricing models including fixed-price contracts, time and materials, and retainer agreements based on project needs.

How do you handle post-launch support and maintenance?

We provide ongoing support and maintenance services, including monitoring, updates, and troubleshooting to ensure your systems run smoothly after launch.

Can you help with cloud infrastructure and DevOps?

Absolutely. We specialize in designing and managing cloud infrastructure, implementing DevOps practices, and optimizing deployment pipelines for scalability and reliability.

How do you approach security in your projects?

Security is a top priority for us. We implement best practices such as data encryption, secure authentication, regular security audits, and compliance with industry standards to protect your systems and data.

Does your staff use AI tools?

Yes, our team leverages AI tools to enhance productivity, automate repetitive tasks, and improve code quality, while ensuring human oversight and expertise remain central to our development process. Notable tools include GitHub Copilot and Claude.

How can I get a quote for my project?

You can reach out to us via our contact form or email us directly at office@c9group.dev with details about your project. We'll review your requirements and get back to you with a tailored proposal.

Tallinn12:28
Ljubljana11:28
Novi Sad11:28

We reply to every enquiry within one business day.

About Services Work Articles

We help businesses grow across borders

Market entry, marketing, compliance, investor readiness and the apps and platforms behind them, with legal and accounting partners in each market. One partner instead of six suppliers.

Get Started Today See our work

20,000+worldwide active usersClasora

10,000+active users in Poland, Sweden, the United States and moreVoluntarius

2019year founded, with offices in Tallinn, Ljubljana and Novi Sad

Technology is the tool, your growth is the job.

C9 Group is a business partner for companies that want to scale, enter new markets or raise investment. We plan the move with you and then carry it out: the registrations and rules a market brings, the marketing that finds customers there, and the product that shows investors the business works.

Legal and accounting work runs through our partners in each country, so you deal with one team. We have done this since 2019, from offices in Tallinn, Ljubljana and Novi Sad, for clients in Europe, Asia and North America.

Everything a company needs to expand abroad.

Marketing and growth: Search and social campaigns on Google and Meta, and visibility on Baidu and Naver, measured from the first click to the signed contract.
Market entry: We prepare the product, language and payments for a new country and handle the registrations it requires, from Indonesia's PSE register to the EU AI Act database.
Compliance: E-invoicing, the AI Act, accessibility and data protection: we work out what the rules in your markets require and change your systems before the deadline.
Legal and accounting: Contracts, company matters, tax and bookkeeping, arranged with our partners in each country, so one team keeps track of all of it.
Apps and platforms: The product your growth runs on: web and mobile apps, platforms and the systems behind them, built for tens of thousands of users.
Investor readiness: A working product, clear numbers and a market plan that hold up in due diligence, prepared with you before the first investor meeting.

What we offer, and what it costs

Some of our work is a fixed product at a fixed price. The rest starts with a conversation about where your business needs to go.

View all services

Real systems. Real impact.

Clasora

20,000+worldwide active users

A comprehensive e-learning platform connecting students with tutors worldwide. We built a scalable real-time matching system, video conferencing integration, and payment processing infrastructure supporting multiple currencies.

E-Learning · Video Platform · Payment System

Voluntarius

10,000+active users in Poland, Sweden, the United States and more

We redesigned the backend architecture to support multi-tenant operations and asynchronous event handling. The result: reduced API response time by 42% and enabled seamless scaling to thousands of concurrent users.

Mobile App · Backend System · Real-Time Data

DuckPond

Emerging platform

Describe a change to an app in plain words, try it in a live preview, and send it to the maintainers as a pull request. We built the AI agents that make the change, the sandboxed preview behind every request, and the GitHub pull request flow that keeps the maintainers in control of what ships.

AI Agents · Sandboxed Previews · GitHub Integration

Specialized solutions for industries we know best.

Your questions, answered

Explore our FAQs to learn more about our process, pricing, and how we can bring your vision to life. If there is still some questions you have, you can write us a email on office@c9group.dev

Companies that want to grow: entering a new country, meeting a new regulation, launching a product or getting ready for investors. Software is often part of the work, but the result we aim for is a business one.