Custom software development · Web applications
Software built around how your business actually works.
We design, build and maintain Windows applications, background services, integrations and web applications. The same engineers who build our own products work on client projects, and they stay with the system after it goes live.
Windows
Windows applications and services
Desktop tools for staff, and background services that run unattended on a server or workstation: processing files, talking to devices such as USB tokens, scheduling jobs, or exposing an API to other systems. Our own product, OneSigner, is built this way.
- Desktop applications for internal teams
- Windows services that run without anyone logged in
- Command-line tools for scripts and build pipelines
- Installers, code signing and update mechanisms
Integrations
Connecting the systems you already run
Much of the useful work in a business happens between systems: an order in one place that should create an invoice in another, a document that must be signed and filed, a report that someone assembles by hand every week. We connect them through APIs, files or databases, with logging so that you can see what happened.
- REST API design and implementation
- Data exchange between accounting, CRM, document and in-house systems
- Scheduled jobs, watched folders and webhooks
- Clear error reporting when something does not go through
Web applications
Applications that run in the browser
Customer portals, internal tools, booking and ordering systems, dashboards: applications your staff or customers use through a browser, without installing anything. We host them for you or deploy them on your own infrastructure.
- Client and partner portals with accounts and permissions
- Internal tools that replace spreadsheets and email chains
- Document workflows, including digital signing
- Payment and email integration
Engagement
How a project runs
Scope
A written description of what will be built, what is out of scope, and the cost and timeline.
Build in stages
Working parts delivered early, so you can try them and correct course before the end.
Go live
Deployment planned with you, with a way back if anything goes wrong.
Maintain
Fixes, updates and changes after launch, by the same team.
Questions
Frequently asked
What kind of software does One Sign build?
Windows applications, background services, integrations between the systems a business already runs, and web applications.
How does a software project start?
With a scoping call to understand the problem, followed by a written proposal that sets out what will be built, how it will be tested and how it will be supported.
Do you maintain the software after delivery?
Yes. Support and maintenance are agreed in the proposal, so the team that built the software keeps it running.
Have a system that needs building or fixing?
Describe what you run today and what you want it to do. We reply with questions or a proposal.