Alex Batten

Designed and shipped production microservices on a multi-tenant SaaS (.NET Aspire, ASP.NET Core, EF Core), each taken from prototype to deployed service with OpenAPI / NSwag-generated typed clients. Owned Stripe billing end-to-end: subscription and seat logic (proration, credits, plan switching, yearly plans, webhooks, secret hardening), plus a working subscription flow prototype in the Next.js client. Implemented Danish tax compliance: VAT reporting to SKAT via NemVirksomhed (SOAP / WS signing) computing all 17 VAT return fields, plus SAF-T import with schema validation. Built external integrations as standalone REST microservices: daily currency rates (National Bank) and company data via CVR (Danish Business Authority).

Advancing AI language model development through data annotation, prompt engineering, trajectory refinement, and QA across four projects, crafting system prompts that define model behavior, personality, and constraints. Designed single and multi-turn conversational and agentic datasets across 50+ risk categories (bias, misinformation, privacy, safety), plus autonomous agent trajectories exercising skill discovery, memory, and native tools. Reached Oracle status, working as both attempter and reviewer, auditing peer submissions and correcting model responses for coherence and safety.

Built and deployed fullstack web apps (Angular, .NET, Bootstrap) and REST APIs with JWT/token auth, rate limiting, and automated monitoring, handling production security and database work. Maintained and extended enterprise ERP systems: automated notifications, time-tracking features, monitoring dashboards, and production bug fixes.