Cosmonauts.dev | Software House | Let Us Orbit Your Business

Hello Universe

Software delivered with cosmic precision.
Elite support that stays in your orbit.

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We’re a software house with 13+ years of experience.
We can build, integrate, support and improve for you:

Mobile App Web App eCommerce ERP/CRM Automation & AI Integration Support

Trusted by:

Gregory Rutecki

CEO / Founder

gregory.rutecki@cosmonauts.dev (PL) +48 602 171 579

Cosmonauts.dev isn’t just a dev shop. It’s a launchpad. We escape the gravity of “good enough” and engineer what’s next. While others ship features, we launch futures — precise, intentional, and built to last. Every line of code is a lever for growth. Every product a calculated trajectory. We don’t orbit the expected. We push boundaries. That’s how lift-off happens.

Let’s launch the future. Together.

Check Out Why Working with a Software House Will Accelerate Your Business Growth

Our clients

We orbit around the stars.

Dependable Subcontractor

All work was delivered on time and according to best coding practices. Reliable execution, clean handover, and no missed deadlines.

Case study →

Dariusz Tomoń

CEO / Owner
ecomplus.pl

Marketing Platform That Performs

Cosmonauts.dev built a custom influencer marketing platform with campaign workflows, approvals, and real-time collaboration. It reduced our coordination time by 60% and significantly improved delivery.

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Grzegorz Miller

CEO / Owner
millermedia.pl

Precise Web Delivery

Every feature we requested was implemented as expected. The team overdelivered on technical functionality and UI quality.

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Piotr Arent

CEO & Owner Arent Capital Holding/
Artimex S.A. / Agro Artim Sp. Z o.o. /
YPOer
artimex.pl , artimex.eu

Odoo Automation That Scales

Cosmonauts.dev delivered a full Odoo implementation tailored to our business and market. Manual tasks were automated, freeing time for growth. Our brand and sales have scaled up.

Case study →

Jakub Drożdż

Brand & Sales Manager at MOVO Training
movo.training

Fast Impact on Performance

Within days, cosmonauts.dev delivered a high-performance server setup that boosted our store’s speed and capacity. Clear, focused execution.

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Piotr Maroszek

Head of eCommerce at Maro Home
marohome.pl

Consistent Business Growth

Thanks to the tools built by cosmonauts.dev, we expanded our interior design reach and attracted more customers. Their solution supported our digital growth exactly as planned.

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Aleksandra Wachowicz

CEO / Owner
aleksandrawachowicz.pl

Reliable Execution Partner

Cosmonauts.dev delivered our web project on time and as specified. They proved to be a stable digital partner with zero delays.

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Mikołaj Zdunek

CEO / Owner
duneko.pl , ladiesgym.pl

150% Conversion Growth

Our new store boosted mobile conversions by 150% and cut bounce rate by 63%. The UX is intuitive, especially on mobile – customers flow naturally through the funnel.

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Oskar Chrzanowski

CEO / Owner
movo.training

WooCommerce at Scale

Cosmonauts.dev handled our large WooCommerce setup with ease. They clearly understand how to build scalable, stable eCommerce infrastructure.

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Mateusz Salamon

CEO / Owner
sklep.msalamon.pl

SEO-Ready Code Delivery

Cosmonauts.dev delivered a website with perfect technical scores: 99/100 Mobile, 100/100 Desktop. Their development meets the strictest SEO/SXO standards.

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Łukasz Rogala

SEO/SXO Visioner & Strategist
verticalseo.io

Case Studies

Our services

We create software that meets your business goals.

Mobile App

Multi-platform mobile application. UX driven, easy to use.

E-commerce store

Highly optimised, integrated with marketing tools. Boosting sales.

Web App

Lightweight, fast, easy to edit, future-proof. Website, App or Platform.

ERP/CRM/WMS

We specialize in Odoo. Optimize processes and increase profits with our experts.

IT Support

One monitoring and maintenance system to keep alive all software in your company.

Integration

It’s a key to success. Having your apps all integrated gives you a superpower to never guess again.

Automation & AI

Automate everything. Cut your operation costs by 50% just by automating 20% of your business processes.

Custom development

If you want a custom software, we are ready and experienced enough to write the highest quality code for you.

Free estimation

Our TechStack

Future-proof technologies cut costs in long term.

Frontend

Headless
Architecture

Backend

DevOps / Cloud

Mobile Development

iOS & Android

AI / Automation

REST API

Platforms

Ready-made yet highly customisable.

Are you a creative agency or a creative freelancer?
We need you.

We work in the model of two teams: one for creative work and one for technical tasks. Creative agencies handle the creative side, while we focus on software development. This teamwork lets us produce top-quality projects and helps agencies sell larger-scale, more challenging projects.

If you want to partner with us, write to agency@cosmonauts.dev

Get a project now

How we work

Simple steps that always work.

Discovery

We turn your idea into a roadmap. We gather business needs, define priorities, and shape a clear project scope.

Development

We build the solution. You stay in control. Our engineers write clean, scalable code — always synced with you.

Testing

We break it before users do. All features are tested by us and verified together with your team.

Launch

We go live — with zero surprises. Together we set the launch plan, prepare production, and release.

∞

Ongoing Support

Your system, always up to speed. We maintain, fix, improve — keeping your software secure and evolving.

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Who we are

Team of talented software developers, managers, testers and analysts ready to create next software project for your company. Our company is 100% managed digitally what allows us to reduce the time and cost of software delivery from the moment of contact with the customer through the first line of code to the release of the software on a production environment. We operate in virtual world but we are a company made by real people and we cut the financial and time costs of unnecessary logistics in the software development process.

<What do we offer to clients? />
We offer a fully transparent software development process giving you the access to our CosmOS platform – from the first sales contact, through written code lines, tests, to the software production installation. We operate remotely, so we have more time for you than other companies standing in a traffic jam. We will make for your company: Website, Web App, Business App, E-Commerce store, Mobile App, Online Platforms, APIs, Databases, Integrations, Automations, DevOps, Cloud, BigData, Metaverse Tech, Blockchain, Wearable Tech, Bio-Tech.

Sounds exactly like what you are looking for?
Please contact us at: hello@cosmonauts.dev

<Who we work with? />
When you work with us, you get access to our CosmOS platform, in which we manage our company end-to-end in a transparent and automated manner. We use no-code and low-code technologies to achieve optimised and automated work environment. Work is fully remote and we meet in virtual space. You will have an impact on the development of our future tool-stack.

Do you want to work according to your own plan, from anywhere in the world? Email us: worktogether@cosmonauts.dev

We are cosmonauts.dev and have a nice day!

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Join us

We work as a network of experts, 100% remote, 100% digitally.
If you want to create the next generation company with us. We invite you to join the CosmOS.

Join now