Platform, security and payments engineering for fintechs, lenders and other regulated companies facing an audit, a licence application or a platform they have outgrown.
Each service can be booked on its own, and they are designed to combine: an assessment that leads into the fixes, or a product built on a platform set up for it.
Web applications and APIs built end to end: .NET and Rails backends, React and Next.js frontends, typed contracts between them, background job pipelines, and test suites that let a team keep shipping after we leave.
Architecture reviews, security audits and modernization plans for systems that have outgrown their first design, with remediation carried through to merged code. AI adoption reviews that set which tools a regulated team can use, where its data goes, and the checks AI-written code has to pass. A fractional CTO when you need senior technical leadership without a full-time hire.
Azure estates run through Terraform, Container Apps and AKS. Monitoring that pages the right person, disaster recovery with written runbooks, and delivery pipelines that can be rebuilt from nothing. Infrastructure for AI features, from model deployments and vector search to agent hosting, on the same platform.
Built, sold and supported in house, on the same stack and practices we bring to client work.
SaaS
Budgeting and shared expenses for households and small companies, backed by a double-entry ledger.
Read about SpendCentric spendcentric.app
Commercial plugin
Clash grouping and history, selection sets, section boxes and TimeLiner tasks for Navisworks, on the App Store since 2020.
Read about Productivity Toolbox productivitytoolbox.app
Open source, MIT
Algorithm patterns stepped through like a debugger, with compile-verified C# on .NET 10.
Open the course Source on GitHub
Open source, MIT
Photo trips planned by your own AI, validated against a JSON Schema and played on a 3D map.
Open the planner Source on GitHub
Clients are described by sector. Names and references are shared under NDA.
Payments, platform and security, 2024 to present
Most clients start with an assessment. Each option also stands on its own.
2 to 3 weeks, fixed price
We read the code, the infrastructure and the incident history, then deliver a written report of findings ranked by risk and cost, with a remediation plan your team can execute.
Scoped project with milestones
We build what the assessment or your team scoped, in your repositories and under your review process, until it runs in production.
Monthly retainer
Part-time technical leadership: architecture and platform decisions, hiring, incident reviews and delivery process, working next to your founders and engineers.
Eleven years of software engineering, most of it in fintech: treasury and FX systems at FIS, then payments and platform leadership at a regulated lender, covering payment pipelines, cloud platform, incident response and security.
Before that, three years at Bexel Consulting as a software developer and BIM manager on tunnel and stadium projects. Civil engineering degree from the University of Belgrade.
Has led engineering teams and run company-wide technical hiring. Writes production code on every engagement.
Send a short description of the product, the system or the problem. You get a reply within two business days, and the first call is free.