Resume

Alexander Selling

Senior software engineer, payments and fraud platform

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$59.6M

GMV recovered

7 months · false positives

+13.36%

Approval lift

+$600K / month · Natural Cycles

65.6%

Recovery rate

Of flagged orders at ŌURA

Payments platform engineer and 3× founder. I build payment systems as highly available, asynchronous Node/TypeScript services: routing, retries, reconciliation, and the failure paths around them. Recovered$59.6M in 7 months at ŌURA and added$600K/month at Natural Cycles by fixing approval rates, false positives, and involuntary churn.

Experience

ŌURA

2024 – present

Senior Software Engineer, Payments and Fraud

node, typescript, react, AWS, DynamoDB

Recovered $59.6M in 7 months by stepping up false positives with 3DS instead of declining them. 65.6% of those flagged orders authorized.
Designed ŌURA's payments platform from 0 to 1. One money path behind D2C, B2B, and subscriptions. Processors (Adyen, Braintree) are adapters, so routing and failover do not re-collect cards or expand PCI scope.
Recovered $64.6K in the first 2 weeks of a new email-OTP step-up layer. 91.5% end-to-end challenge completion. 99.1% submit-to-verify.

Natural Cycles

2023 – 2024

Senior Software Engineer, Payments

node, typescript, angular, react, braintree, stripe

Increased approval rates 13.36% (+$600K/month) by leading a processor migration (Braintree to Stripe) for a 3M+ user subscription product.
Reduced involuntary churn 10% with a custom retry strategy for failed recurring payments.
Built the discount and campaign platform powering all marketing across 3M+ users.

Heads

2021 – 2023

Senior Software Engineer

node, typescript, react, iOS

Built retail point-of-sale software (Square-like): React frontend, Node backend, iOS POS app. 18 customer-facing projects shipped in 18 months.

Founder & CEO

2012 – 2022

iSpect ERP · iControl · iSpect

C#, dotnet core, vue, iOS, couchbase

Founded three construction-tech companies over a decade; built and led teams of up to 18 across 4 timezones, 0→1 each time.
Grew iSpect ERP to $4M ARR; took iControl through 500 Startups to $55K MRR.

Skills

Backend: node.js, typescript, highly available low-latency async systems, API contract design, modular monoliths & microservices, idempotent webhooks, event-driven processing, GraphQL, DynamoDB, SQL, C# / dotnet core
Platform: AWS, GCP, Docker, CI/CD, GitHub Actions, observability & on-call (Datadog, ELK), feature flags (Statsig), TDD, jest, playwright
Frontend: react, vue, angular, trpc, redux, SSR/SSG, nextjs, astro
Mobile: swift, objective-c, swiftui, uikit, offline-first sync