Custom software for demanding business processes
We design, build and maintain .NET systems that run real processes in financial-sector companies. From requirements analysis, through architecture and implementation, to production deployment and ongoing development.
Why SQuare Solutions
We are not another supplier of billable hours. We go deep enough into a project to be accountable for the outcome, not just for the code we hand over.
One partner from analysis to deployment
Your project does not travel between teams, losing context on the way. The same person who gathers the requirements with you is responsible for the architecture, the code, the tests and the production rollout.
Business first, code second
Before the first line of code is written, we want to understand the process the system is meant to support and what a successful rollout means to you. Good analysis is cheaper than reworking a finished solution.
Partnership model
For features that translate directly into revenue, we can settle through a share of the profit instead of — or alongside — a time-based rate. That way we take on part of your risk.
What we do
Three areas backed by years of real production experience. We do not advertise capabilities we have not proven in a live deployment.
Custom web applications
We build .NET web systems from scratch: from requirements analysis, through architecture and data model design, to production deployment and knowledge transfer to your team.
- Requirements analysis and architecture design
- ASP.NET Core, Web API, React + TypeScript
- Production deployment and knowledge transfer
Integrations and APIs
We design and deliver data exchange between systems — REST, SOAP, message queues and batch processing. Together with error handling, retries and monitoring.
- REST, SOAP, message queues
- Batch processing and job scheduling
- Error handling, retries and monitoring
Legacy .NET modernisation
We take over existing .NET Framework, WebForms, MVC 5 and WCF applications: clean up the architecture, migrate to .NET 10+ and get them to a state where development is predictable again.
- Architecture and technical debt audit
- Migration from .NET Framework to .NET 10+
- Step by step, without stopping the business
Collaborations with financial institutions
Systems we collaborated on as a subcontractor — in banking, leasing and document management. Regulated environments, where a mistake costs more than time.
How we work
A repeatable process every client of ours knows. No surprises about who is responsible for what, or when you will see working software.
- 01
Initial conversation
Free and with no obligation. We get to know the problem, the business context and the constraints. At this stage we also say plainly if we are not the right contractor for the job.
- 02
Analysis and scope
We write down the functional requirements, set priorities and define the boundaries of the first release. Scope we do not understand does not make it into the quote.
- 03
Architecture and quote
We propose a technical solution, an engagement model and a schedule. And we explain why this one — including what the alternatives would cost.
- 04
Implementation
We work iteratively. At every stage you get working software to look at, rather than a progress report.
- 05
Production deployment
Environments, CI/CD, data migration, acceptance testing and knowledge transfer. We treat deployment as part of the project, not as a separate engagement.
- 06
Development and maintenance
We stay with the system for as long as it is needed — handling tickets, developing features and responding to changes in the business environment.
Technologies
The stack we work with daily and run in production — not a list of fashionable buzzwords.
Backend
- .NET 10+
- ASP.NET Core
- Web API
- Entity Framework Core
- TickerQ
Frontend
- React
- TypeScript
- Vite
Data
- Microsoft SQL Server
- PostgreSQL
- Redis
Cloud and DevOps
- Microsoft Azure
- Docker
- GitHub Actions
- Azure DevOps
Have a system to build, or one that can no longer keep up?
Write or call. The first conversation about scope and possible solutions is free and commits you to nothing.