Software engineering · Integrations · Automation
We build software that businesses depend on.
Velantra designs and builds production software: internal systems, digital products, integrations and AI-powered workflows.
An engineer usually replies within one business day.
ExampleFollow order #10482 through three systems we build.Order #10482 through our systems.
The portal lists the order among recent orders, the automation turns it into a CRM update and invoice INV-2291, and the assistant answers a question about its payment terms, citing the customer's contract.
Software should remove work, not create more of it.
Services
Software engineering for the systems your business runs on.
Custom software is the foundation. We connect the systems around it, automate repetitive operations and add AI only where it makes the work more useful.
- 01
Custom business software
Software built around how the company actually operates instead of forcing teams into generic tools.
- 02
Business automation
Replace repetitive manual processes with automated workflows and connected systems.
- 03
Backend systems & integrations
APIs, data systems, payments, authentication and integrations engineered for production.
- 04
Customer portals
Secure portals for customers, partners, employees and operations teams.
- 05
MVPs & digital products
Design and build production-ready digital products from initial idea to launch.
- 06
Ongoing development
Long-term engineering support for products that continue to evolve.
- 07
AI integration & RAG
Connect internal knowledge, documents and business systems to AI models using retrieval, automation and custom software. See how it works
Selected work · E-commerce
Xonar.co
Custom international e-commerce platform designed, developed and shipped to production in 8 weeks.
Version 1 · fully custom
8weeks
Design to production
Challenge
An independent fashion brand needed one international storefront that felt like a flagship brand experience rather than a template shop, in six languages, with customer accounts and payments working in production from day one.
What we built
Current architecture
6languages
International storefront
Live and selling
2payment providers
Integrated payments
Stripeiyzico
1custom storefront
Integrated with Shopify
Next.jsShopify API
Shoppers
6 languagesOne storefront, Priced in TRYCustom · engineered by Velantra
Next.js storefrontCart and storefront logic, Localization, Authentication integrationIntegration layerServer-side API routes, Shopify API integrationPlatforms and providers
ShopifyCommerce infrastructureiyzico and StripeBoth integrated, iyzico activeExchange ratesOfficial Turkish rate APIs
Result
100+ orders to date
When XONAR later asked for Shopify to take over standardized commerce, the custom storefront stayed in place and we built our own integration layer over the Shopify API. Live at xonar.co (opens in a new tab).
Engineering
Built for production.
We design the interface, architecture, APIs, integrations and infrastructure as one system.
In production today: payment flows, authentication, third-party API integrations and a localized multi-market storefront integrated with Shopify.
Interface
What customers and teams use
- Storefronts (in production today)
- Admin panels
- Customer portals
APIs
Business logic and access
- REST APIs
- Authentication (in production today)
- Payments (in production today)
Integrations
How it talks to other systems
- Third-party APIs (in production today)
- Webhooks
- Queues
Infrastructure
Where it runs and how it ships
- Databases
- CI/CD
- Cloud deployment
Stack
- TypeScript
- Node.js
- NestJS
- React
- Next.js
- .NET
- PostgreSQL
- Redis
- Docker
AI integration
AI that works inside the systems you already run.
We index your documents and data, retrieve what matters for each question and let the model answer from that context (RAG). Answers cite their sources, follow the permissions your systems already enforce and appear inside your own tools. We measure and monitor them like any other production feature.
Example: asked about payment terms for order #10482, the assistant retrieves three passages from Brandt Metall's contract, payment terms and CRM record, and answers Net 30 with a 2% discount within 10 days, citing two of them.
- 01
Your company data
Documents and records, left where they already live.
- PDFs
- Knowledge bases
- Internal docs
- CRM
- Product database
- Support history
- 02
Retrieval layer
Indexes the content and finds what each question needs.
- Index
- Search
- Access control
- 03
AI model
Answers only from the retrieved context, and cites it.
- Grounded answers
- Source links
- 04
Your tools
Delivered where your team and customers already work.
- Internal assistant
- Customer support
- CRM
- Admin panel
- Automation
- Customer portal
AI is one capability, not the foundation: it runs on the same APIs, data models and infrastructure we build for everything else.
Follow one question through itProcess
From first call to production.
Discover
Understand the business, users, constraints and what actually needs to be solved.
Design
Define the architecture, product experience and technical approach.
Build
Develop, integrate, test and iterate.
Launch & support
Deploy to production, monitor it and continue improving the system.
How we start: send a short brief. An engineer usually replies within one business day, then a short call and a written proposal.
Start a projectWho we work with
We work with companies that need software to solve real operational problems, launch digital products or replace inefficient processes.
- Teams replacing spreadsheets and manual operations
- E-commerce companies
- Companies integrating AI into existing workflows
- Growing businesses
- Startups
- Service businesses
Based in Warsaw, working with clients across Europe and worldwide.
Contact
Tell us what you need to build.
An engineer reads every inquiry and usually replies within one business day, then a short call and a written proposal. Focused initial engagements are welcome.
Prefer to talk?
Book a 30-minute call.
Speak directly with an engineer.
Agenda · 30 min
- What you need to build
- Systems it has to connect to
- Approach and timeline