Custom Development
Custom Software
Built Exactly for You
APIs, SaaS platforms, admin panels, internal tools — whatever your business specifically requires. A custom software development agency serving Montreal, Quebec, Paris, and across North America. Built with the precision of a product team.
What we build
SaaS Platforms & Subscription Systems
Multi-tenant SaaS products with subscription billing, user management, role-based access, and analytics — architected to scale from first customer to enterprise.
REST & GraphQL APIs
Production-grade APIs with authentication, rate limiting, versioning, and documentation — built to be consumed reliably by your own clients or internal systems.
Admin Panels & Internal Dashboards
Operational tools, CRM dashboards, analytics panels, and back-office systems designed around how your team actually works — not adapted from a generic template.
CRM & ERP Integrations
Deep integrations with Salesforce, HubSpot, SAP, and custom internal systems — data flowing correctly across your stack without manual effort.
Data Processing Pipelines
ETL pipelines, real-time data processing, reporting engines, and scheduled batch jobs — handling the data operations your business runs on.
Legacy System Modernization
Migrating outdated systems to modern architecture — incrementally, without breaking production — with measurable improvements in performance and maintainability.
Technology stack
Stack chosen for your
requirements, not our habits.
Backend
- Node.js / Express
- Python / FastAPI
- Laravel / PHP
- REST & GraphQL
Frontend
- React / Next.js
- TypeScript
- Tailwind CSS
- Vite
Database & Queues
- PostgreSQL / MySQL
- MongoDB
- Redis
- RabbitMQ / Bull
Infrastructure
- AWS / DigitalOcean
- Docker / Kubernetes
- CI/CD pipelines
- Cloudflare
Our process
Requirements & Architecture
We map your system requirements, data model, business logic, and integration points in detail before a single line of code is written. You receive a technical architecture document and a scoped estimate — not a vague quote.
Technical Design
Database schema, API contracts, and component boundaries designed and reviewed. Decisions are documented with reasoning — so the architecture is understood and maintainable, not a black box.
Development & Code Review
Iterative delivery with working software at every milestone. Code reviewed internally for quality, security, and maintainability — not just functionality. You can see and test progress throughout.
Deployment & Handoff
Production deployment, performance testing, and full documentation — followed by a structured handoff session. You receive the codebase, architecture docs, and runbook. No lock-in, no dependency on us to continue.
Who we work with
Product companies
Building a SaaS product or internal platform? We act as a focused technical partner — scoped, accountable, and delivering working software at every stage.
Scale-ups
Outgrown your current architecture? We plan and execute migrations and modernization with minimal disruption to your production system and team.
Enterprise teams
Need a specialized external team for a specific system? We integrate with existing engineering teams, follow your standards, and deliver documented, production-quality code.
EN / FR commercial orders
Our bilingual team (EN/FR) serves clients in Montreal, Quebec City, Paris, Brussels, and beyond — logiciel sur mesure, delivered on time. Commercial orders in English and French welcome.
FAQ
Frequently asked questions
How is custom software different from a template or SaaS tool?
Custom software is built around your specific business logic, data model, and workflows — not adapted from a generic template. You get exactly the features your business needs, full code ownership, and no subscription dependency. It's the right choice when your requirements are specific enough that off-the-shelf tools create more problems than they solve.
Will I own the source code after delivery?
Yes. Full source code ownership is standard in every engagement. You receive clean, documented code with no proprietary dependencies — maintainable and extendable by your in-house team or any other development team, not locked to us.
Can I add features or extend the software after delivery?
Yes. We architect software for extensibility — clean separation of concerns, documented APIs, and modular structure. Every delivery includes full architecture documentation and a structured handoff session. You can maintain it in-house, engage another team, or continue working with us.
How do you estimate the cost of a custom software project?
After a discovery session where we map your requirements, data model, integrations, and performance needs, we produce a scoped estimate with clear deliverables — not a single number pulled from thin air. We respond to initial contact within 24 hours with questions and a proposed next step.
Do you work with French-speaking clients?
Yes. Voronkin Studio is a fully bilingual agency (EN/FR). We communicate, document, and manage all projects in both English and French. We serve clients in Montreal, Quebec City, Paris, Brussels, and Switzerland — développement logiciel sur mesure bilingue.
Have a specific requirement?
Tell us what you need built — we respond within 24 hours with a clear technical approach and scope. Commercial orders welcome in English and French.