Diego Leon

Healthcare and pharmacy application development, integration support, and production troubleshooting.

• Deliver contract development and application support for a healthcare/pharmacy environment using the Microsoft technology stack, .NET 10/C#, SQL, Blazor/Razor, APIs, and cloud-connected architecture.
• Design, test, document, and enhance internal frontend/backend applications while supporting API integrations, complex SQL queries/stored procedures, and Tier 2/3 production troubleshooting.
• Collaborate with QA, Infrastructure, CIO/Business Operations, and agile stakeholders on cloud/microservices-oriented improvements, support procedures, code reviews, sprint planning, and secure/performance-minded fixes.
• Develop Systems Integrating AI, LLMs, Advanced RAG Systems, Graph DBs, Vector DBs and Manage of Embeddings Systems

Online applicant tracking, job posting, resume management, scoring, and hiring workflows for an ATS SaaS platform (ninjagig.com).

• Lead migration from legacy MVC to Blazor Server, evolving a monolithic applicant-tracking platform into a modern service-oriented architecture with .NET 10 / ASP.NET Core APIs.
• Design, develop, and operate multi-tier web applications across Azure and AWS, supporting job posting workflows, applicant tracking, HR document automation, and secure business modules.
• Build and extend NinjaGig AI Suite, an AI-powered resume processing, scoring, and candidate-job matching product that parses applicant documents, extracts skills/experience signals, and ranks candidate fit against job requirements.
• Apply AI-native engineering workflows with Cursor, OpenAI Codex, Claude Code, and GitHub Copilot to accelerate refactoring, test generation, code review preparation, documentation, and delivery of ATS/AI features.

Healthcare education, certification, and revenue cycle technology (aapc.com).

• Built scalable web, mobile, and cloud-connected applications using .NET 8/.NET 6, Blazor, Razor, .NET MAUI, Azure B2C, and Azure DevOps pipelines.
• Led Xamarin-to-.NET MAUI migration and coordinated a small engineering team, improving mobile architecture and cross-platform maintainability.

Mobility and ride-dispatch platform operations.

• Designed real-time, event-driven ride operations using .NET, EF Core, RabbitMQ, SignalR/WebSockets, Blazor, and .NET MAUI.
• Built cross-platform driver/operator experiences, reusable Blazor components, queue-based communication patterns, and live location workflows.

AI, agentic API gateway, and LegalTech portfolio spanning Tech For People (techforpeople.org), Tech For AGI (techforagi.com), and Lex OS AI Alpha (gateorbit.com/v2).

• Architected Lex OS, an AI-powered legal operating system for case analysis, jurisprudence exploration, OCR-enabled document intake, evidence panels, per-case workspaces, and administrative controls.
• Built TechForAGI Gateway, an agent-native API gateway for autonomous AI systems to discover services, request quotes, process tasks, and receive structured machine-readable responses.
• Designed a Super RAG architecture combining semantic retrieval, legal-atom/verified-holding concepts, vector indexes, SQL/graph sources, retrieval audits, prompt orchestration, and evidence grounding.
• Directed AI product decisions around LLM prompts, tool/function calling, OCR workflows, source attribution, usage metering, latency/cost tracking, and API monetization patterns.

HOA and community management SaaS (frontsteps.com).

• Supported cloud-hosted web and desktop applications with .NET 6/.NET Framework 4.8, Azure infrastructure, agile delivery, and production troubleshooting.

CX, contact center AI, and cloud communications (nice.com).

• Delivered enterprise web and desktop applications using C#, ASP.NET, MVC, .NET Core, Entity Framework, SQL Server, RESTful APIs, and Scrum practices.

HealthTech / GovTech COVID-19 telehealth platform.

• Led a 125-person technology, health, and marketing team to deliver COVID-19 symptom reporting, WhatsApp teleconsultation, web workflows, Twilio WebRTC video consultations, microservices, and event-driven .NET solutions.

Banking and financial services (bcp.com.bo).

• Managed nationwide application infrastructure, production environments, DevOps culture, Azure Boards/Pipelines/Repos/Tests, Git, Terraform, VMware, SQL Server, IIS, Windows Server, Azure Cloud, and backend banking APIs.

Microfinance banking and financial services (bancosol.com.bo).

• Built and integrated banking applications, APIs, SQL Server workflows, customer support platforms, SignalR, sockets, WebSockets, REST/SOAP services, and .NET web/desktop solutions.

Legal operating system for case analysis, jurisprudence exploration, OCR-enabled document intake, evidence panels, per-case workspaces, and administrative controls.

Enables autonomous AI systems to discover services, request quotes, process tasks, and receive structured machine-readable responses.

Combines semantic retrieval, legal-atom/verified-holding concepts, vector indexes, SQL/graph sources, retrieval audits, prompt orchestration, and evidence grounding.

Parses applicant documents, extracts skills and experience signals, and ranks candidate fit against job requirements for recruiter workflows.