Custom software development and modernization.
We build SaaS and FinTech products, integrate AI into business workflows, and improve the reliability and running costs of existing systems.
Led by Aurel “Simi” Simion, Principal Software Architect.
30+ clients since 2017. Built a payment platform processing 4M+ transactions a day.
The product you need to get to market, where the architecture decisions made in month one will still matter in year three.
The application that works but has become slow to change, expensive to run, or overdue an upgrade you keep postponing.
The AI feature you want in a specific workflow, built so it behaves sensibly when the model gets it wrong.
Different starting points, same requirement: decisions made by someone who has built this before, and seen where it breaks.
across 18 countries, on simple architecture that never needed an emergency rewrite
sub-second financial reports at terabyte scale
integrations designed around what happens when the model is wrong, not just when it is right
Three ways to work with us
Whether you are starting something new or improving what you already run.
Build a new product
Business requirements, scope, architecture, implementation and launch. For teams taking a SaaS or FinTech product to market with experienced technical leadership.
Explore this serviceModernize existing software
Upgrades, testing, migration planning, reliability and operating costs. For mature applications that need a controlled path forward rather than a rewrite.
Explore this serviceIntegrate AI
A specific workflow, useful evaluation, failure handling and appropriate human control. AI that earns its place in the process.
Explore this serviceAudits and ongoing architecture support are available as engagement options. An existing production system may need an audit; a new product needs discovery and a scoped plan.
Selected software work
Client platforms and company-owned products across payments, financial data, AI and operations.
Who leads the work
SET Innovation is a founder-led software studio. Since 2017 we have built and modernized systems that move money, hold data and support real users at scale across payments, financial data and AI-assisted workflows.
Aurel “Simi” Simion, Founder and Principal Software Architect
Simi leads the architecture decisions and works hands-on during implementation. His work includes a payment platform processing more than 4 million transactions a day, financial reporting across more than 3 million company records, and AI integrations designed around what happens when a model is wrong.
A small team of collaborators joins when the project needs additional capacity. Simi remains directly involved rather than handing the work to an anonymous delivery team.
View profile on LinkedInWe work simple on purpose. Simplicity is the discipline, not the shortcut.
Tell us what you want to build or improve.
Two rules we keep
Build it simple enough that nobody gets a 3am phone call.
Charge fairly, so the client gets real value and we sleep at night.
Trusted by Industry Leaders
Our clients choose us for our proven track record, technical excellence, and commitment to delivering results that drive business growth.
George N.
Founder
Topchecks
SET Innovation delivered a platform that has handled real production load without an emergency rewrite. Their attention to detail and technical expertise exceeded our expectations.
Adriana M.
Co-Founder
KalpaTech
Working with SET Innovation was a game-changer. They transformed our complex requirements into an elegant, scalable solution that has driven significant business growth.
Marilena D.
Co-Founder
GMD Omega
Their technical expertise and project management skills are outstanding. SET Innovation consistently delivers high-quality solutions that scale with our business.
Discuss your project
Tell us what you want to build or improve. You will get an honest read on the situation, the fit and a sensible next step.
What happens next
- A short call to understand what you want to build or improve, and where it stands today.
- An honest read on the situation, the fit and the work involved.
- A sensible next step, whether that is a scoped plan, an audit, or a recommendation to look elsewhere.
Discuss your project
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