Ceneo Bot
Automated price and competitor monitoring on Ceneo. Track pricing changes to inform sales decisions.
- Ceneo
- Price Monitoring
- Automation
Product-minded Senior Engineers
We don't just code. We solve business problems.
10+ years of experience. Based in Poland, working remotely with clients across Europe. We don't just advise - we build our own SaaS products and software for agencies and e-commerce.
Trusted by companies across 7+ EU countriesNDA & IP protection includedFree initial consultation
10+
Years in tech
20k+
Hours coded
7+
EU Countries deployed
50+
Projects delivered
Why We Build Products, Not Just Projects
Most software companies are either pure service shops or pure product companies. We're neither - and that's by design.
We operate as what Y Combinator calls an "AI-native agency" - a company where service delivery and product development reinforce each other. Every client engagement teaches us what tools the market needs. Every product we build sharpens our engineering and deepens our domain expertise.
This isn't a new idea. The author of The 5 describes this exact model - companies that survive their first five years often do so by building reusable assets from client work. The same trend shows up in Y Combinator's latest RFS, where they write about AI-native agencies that "look more like software companies, with software margins."
Panel Pro, sellersk.it, FBA MultiTool - every product above was born from a real client need. That's why they work.
Our products
We build SaaS products that agencies and e-commerce businesses use every day to manage campaigns, sales, and data.
Panel Pro
Advanced AllegroAds management panel for agencies. Streamline Allegro Ads campaign management, reporting, and client collaboration in one place.
- AllegroAds
- Allegro Ads
- Agency Tools
- Analytics
sellersk.it
Complete Allegro automation platform (also known as Seller's Kit / SellersKit). EAN monitoring, Top Offer monitoring, and sales scalability - millions of offers synced in real-time.
- EAN Monitoring
- Top Offer Monitoring
- Allegro Automation
- E-commerce
FBA MultiTool
A toolkit for Amazon FBA sellers. Product research, inventory management, and sales analytics in one place.
- Amazon FBA
- Product Research
- Analytics
FBA Leads UK
A platform for Amazon FBA wholesale sellers in the UK. Find profitable products and suppliers.
- Amazon FBA
- Lead Generation
- UK Wholesale
CRXJS
An open-source Vite plugin for Chrome extension development. Support for HMR, TypeScript, and familiar web development tools.
- Open Source
- Vite
- Chrome Extensions
Integrations and tools
BaseLinker Automations
Warehouse location synchronization and automated communication between fulfillment centers and Allegro suppliers. Custom BaseLinker integrations keep logistics data in sync.
- BaseLinker
- Location Sync
- Fulfillment
- Allegro
Make.com Development
Custom Make.com (formerly Integromat) scenarios and integrations.
- Make.com
- Integrations
- Workflows
n8n Workflows
Self-hosted workflow automation with n8n. We design and build complex integrations with full control over your data and infrastructure.
- n8n
- Self-hosted
- Automation
SharePoint
SharePoint On-Premise and Cloud maintenance, development, and administration. We build custom solutions, workflows, and keep your SharePoint infrastructure running smoothly.
- SharePoint Online
- On-Premise
- Administration
Webcon BPS
We build custom integrations connecting WEBCON BPS with enterprise systems - Comarch, SharePoint, Autenti e-signatures, and KIR. Workflow design is handled by our partners, we deliver the technical integration layer.
- Integrations
- Comarch
- Autenti
- KIR
iFirma & Stripe Integrations
Stripe subscriptions and payments connected to automated invoicing in iFirma. The integration reduces manual data entry between systems.
- iFirma
- Stripe
- Invoicing
React Extension Libraries
Internal component libraries and utilities for building Chrome extensions with React. Used across multiple extensions in production.
- React
- Component Library
- Internal Tools
How we can help
We build systems, automations, and extensions that make your team's everyday work easier.
System Development & Modernization
.NET 11 · React · TypeScript
We build custom business applications and modernize existing systems. Our experience includes projects for major Polish banks and leading medical providers. We design software for straightforward maintenance and stable operation as workloads grow.
- Full-stack development
- Legacy modernization
- System architecture
- Performance optimization
Operations centerExample
- OrdersReady to sync
- InventoryReady to sync
- FinanceReady to sync
E-commerce Automation
Allegro · BaseLinker
We automate campaign management, order processing, invoicing, and pricing. Custom integrations and AI agents connect your sales tools, reducing manual data entry and repetitive tasks.
- Ad campaign automation
- Invoice processing
- AI-powered agents
Order processingExample
- OrderWaiting
- InvoiceWaiting
- ShipmentWaiting
Browser Extensions
Chrome · Edge
We build extensions tailored to agencies and teams. We add features to the sites you use, automate form filling, and connect data across tools to reduce repetitive browser tasks.
- Custom Chrome extensions
- Workflow automation
- Third-party integrations
- Team productivity tools
Your listingsExample
- Unchanged
- Unchanged
- Unchanged
Tech Stack
Modern technologies and best practices for building reliable, scalable systems.
.NET
Backend
React
Frontend
TypeScript
Type Safety
Vite
Build Tool
Kubernetes
Orchestration
Docker
Containers
GitHub Actions
CI/CD
Terraform
Infrastructure
OpenTelemetry
Tracing
Grafana
Dashboards
PostHog
Product Analytics
Sentry
Error Tracking
Claude 4.6
LLMs since 2022
OpenCode
AI Coding
Open Source
First
Linux
Servers
Prometheus
Metrics
Jaeger
Tracing
SharePoint
On-Premise & Cloud
Make.com
Workflows
n8n
Automation
Webcon
Enterprise Integrations
Our products on Chrome Web Store
Who's behind this
Tomasz Dłuski
Founder & CEO
Senior Software Engineer with 10+ years of experience. Previously part of a company that scaled from 5 to 50+ engineers. Now building Optymized - a company that combines enterprise project delivery experience with own SaaS products. Maintainer of CRXJS (3.9k GitHub stars), one of the most popular tools for building browser extensions.
Open Source
We actively contribute to the open source ecosystem. Maintaining and supporting projects used by thousands of developers.
3,900+
Stars
101+
Public repos
46+
Followers
11+
Years on GitHub
Projects we contribute to
Let's discuss your project
Whether you need a custom browser extension, a dedicated dev team, or technical consulting - let's find the best approach together.
or send us a message