Senior Full-Stack .NET Developer · Valencia, Spain · EU citizen
I build and run .NET and Azure systems for fintech and logistics, from lending platforms and identity verification to customer communications at scale.
15+ yearsof C#/.NET in production, the last 7+ in remote, English-speaking teams
50%lower hosting costs after moving services to Linux containers on Azure
~90%of inbound calls resolved without an agent by the IVR I designed
1.3M+ SMSplus ~150K calls a month on the Twilio platform I built end to end
About
Senior software engineer with 15+ years of C#/.NET experience, the last 7+ years in remote, English-speaking fintech and logistics teams. Builds and runs production systems end to end: ASP.NET Core Web APIs, Azure Functions, Angular front ends, Azure SQL and Azure DevOps CI/CD. Key results: a Twilio communications platform handling ~150K calls and 1.3M+ SMS a month, an IVR that resolves ~90% of calls without an agent, and a move to Linux containers that halved hosting costs. Mentors developers and leads code reviews. Microsoft Certified: Azure Developer Associate.
Rehired in 2024 (first tenure 2018–2022) to design and maintain the core lending systems behind Together Loans, the group's US cosigner-loan brand, on .NET, ASP.NET, Angular and Azure.
Automated extraction of facial snapshots from archived video calls and matched them against Veriff identity data; built a side-by-side review UI for agents that raised verification accuracy and sped up payouts.
Integrated Veriff (identity verification), SEON (fraud screening) and People Data Labs (data enrichment) into the payout flow, making identity and fraud checks faster and more reliable.
Containerized services with Docker and moved them to Linux containers on Azure, cutting hosting costs by half and simplifying deployments.
Modernized the group's multi-country lending platform (up to 12 countries) with .NET, Azure Functions and Angular, improving performance, reliability and user experience.
Built the company's communications platform end to end on Azure Functions and Twilio (voice, SMS, email); it processes ~150K calls and 1.3M+ SMS per month with comparable email volume.
Designed a large-scale IVR in Twilio Studio that answers every inbound call and lets customers make payments and change schedules on their own; about 90% of calls never need an agent.
Automated call-center operations with IVR workflows and system integrations, helping cut the number of call-center agents by half.
Integrated the in-house alarm-monitoring platform with Alarm.com, Eagle Eye and ISNet for device onboarding and real-time event processing.
Integrated the sales platform and in-house CRM with Salesforce, Workcube and other third-party systems, streamlining lead-to-order and support processes.
AZ-400 Designing and Implementing DevOps, exam-prep course (Udemy, 21 h, Mar 2026); Advanced Topics in C#; What's New in C# 7–14 (Udemy, May 2026)
Angular
Modern Angular 21 with Signals; RxJS Crash Course (Udemy, Apr–May 2026)
AI-assisted development
Building with the Claude API; Claude Code 101; Claude 101; AI Fluency: Framework & Foundations (Anthropic, 2026)
Security & compliance
SDLC Security: Core Concepts (SecureFlag, Mar 2026); US consumer-lending compliance: FCRA, FDCPA, Regulation Z, UDAAP, MLA, E-Sign, AML (ProSight, 2025); ISACA CPE sessions on AI governance and the EU AI Act (2025–2026)
