Large-Scale Middleware Integration
We connect complex systems at scale: payment rails, ERPs, data platforms, and legacy services. The integration layers we build stay reliable under real production load.
Consulting & custom software delivery
Software architecture and delivery you can build on.
Sirius partners with teams to design sound systems and ship the software that runs them, from first architecture sketch to production.
What we do
Two things we are known for, backed by senior architecture consulting and delivery.
Custom Accounting Software
Purpose-built accounting tools shaped around how your business actually works, including AccountingBot, our product for automated transaction validation.
Architecture Consulting
System design, technical strategy, and pragmatic roadmaps that fit your team and constraints, not a textbook.
Custom Software Delivery
We build and ship production software end to end: backend services, APIs, and the integrations that tie them together.
Custom Reporting
We build the data pipelines that feed your reports, then we build the reports. Our report builders work across three formats.
Tableau
Polished, interactive Tableau dashboards and workbooks for teams already invested in the platform.
Custom HTML Reporting
Bespoke, branded reports built in HTML for when off-the-shelf tools cannot match what you need.
Live View Infrastructure
Real-time dashboards wired straight to your systems, so the numbers update as the business moves.
"We always own the middleware."
How we approach every integration.
Our product
AccountingBot
AccountingBot validates and checks transactions for you automatically. It reviews each transaction, flags anything that does not add up, and gives finance teams confidence that the numbers are right before the books close.
- Automated validation of every transaction against your rules
- Catches errors, duplicates, and mismatches before they spread
- Clear, auditable flags so your team knows exactly what to review
How we work
A simple, repeatable shape to every engagement.
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01
Discover
We dig into the problem, the existing system, and the real constraints before proposing anything.
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02
Design
We shape an architecture and a plan you can commit to, with clear trade-offs and no hand-waving.
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03
Deliver
We build, ship, and hand off in a state your team can own and extend.
About Sirius Software Architecture
Sirius Software Architecture is a small, senior firm. We take on a limited number of engagements at a time so each one gets real attention, from the architecture decisions that are expensive to undo, down to the code that ships.
We work best with teams who want a partner that can both make the call on a hard technical question and build the thing that answers it.