Lead Cloud Applications & AI Integration Engineer

Diego Leon

Lead Software Engineer and cloud applications architect with 10+ years building production systems across .NET 10, ASP.NET Core, APIs, event-driven architecture, cloud infrastructure, and enterprise integrations. Strong leadership record modernizing legacy platforms into scalable services, mentoring engineering teams, and delivering AI/LLM-powered products with RAG, tool/function calling, OCR, evidence retrieval, and production-oriented monitoring and cost controls.

Get in touch LinkedInEmail
  • North Bay Village, FL, USA
  • Hybrid / Remote | Contract-ready
Diego Leon
Diego Leon
10+
Years building production cloud and enterprise systems
AI/LLM
RAG pipelines, AI agents, OCR, and evidence retrieval in production
Cloud
AWS and Azure production applications, CI/CD, and scalable API design
Lead
Legacy modernization, team mentoring, and architecture ownership

Experience

2024-09 — Present
NinjaGig
Remote / USA

Lead .NET Software Engineer

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

  • 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.
  • Architect scalable backend services and API integrations for payments, job feeds, transactional email, optimized SQL strategies, secure data models, and production support.
  • Modernize UI from DevExpress MVC to DevExpress Blazor while managing CI/CD, zero-downtime deployments, SSL/TLS lifecycle, PCI validation, AWS backups, and incident response.
.NET 10ASP.NET CoreBlazorAzureAWSAIATS
2026-01 — Present
SMP Pharmacy Solutions
Hybrid / Remote

Contract Software Developer II · Contract

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.
.NET 10C#BlazorSQLHealthcare
2023-05 — 2024-09
AAPC
Remote / USA

Senior Software Developer

Healthcare education, certification, and revenue cycle applications.

  • 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.
.NET 8.NET MAUIBlazorAzure
— Present
Tech For People Global Corp / TechForAGI / Lex OS

Founder & AI / Cloud Applications Architect

AI, agentic API gateway, and LegalTech portfolio spanning Lex OS, TechForAGI Gateway, and Super RAG architecture.

  • 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.
  • Use Cursor, Codex, Claude Code, and Copilot as part of an AI-assisted product engineering workflow for rapid prototyping, architecture exploration, RAG pipeline iteration, API scaffolding, and technical documentation.
AIRAGLegalTechLLMAPI Gateway
2022-10 — 2023-03
EnKnack / RideGoNow
Remote / USA

Senior Software Developer

Mobility and ride-dispatch platform with real-time, event-driven 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.
.NETRabbitMQSignalRBlazor.NET MAUI
2022-08 — 2023-03
CH2 Solutions - FrontSteps
Remote / USA

Senior Software Developer

HOA and community management SaaS with cloud-hosted web and desktop applications.

  • Supported cloud-hosted web and desktop applications with .NET 6/.NET Framework 4.8, Azure infrastructure, agile delivery, and production troubleshooting.
.NET 6Azure.NET Framework
2022-04 — 2022-08
NICE inContact
Remote / USA

Senior / Mid Software Developer

CX, contact center AI, and cloud communications enterprise applications.

  • Delivered enterprise web and desktop applications using C#, ASP.NET, MVC, .NET Core, Entity Framework, SQL Server, RESTful APIs, and Scrum practices.
C#ASP.NET.NET CoreSQL Server
2019 — 2021
Sammy Bot / Tercer Elemento S.R.L.
Bolivia

CEO & Founder

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.
HealthTechGovTechMicroservices.NET
2018 — 2021
Banco de Credito BCP
Bolivia

Manager, Server Applications & IT Infrastructure / Azure DevOps Manager / Sr. Backend Developer

Banking and financial services application infrastructure, DevOps, and backend APIs.

  • 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.
Azure DevOpsTerraformSQL ServerBanking
2015 — 2017
Banco Solidario S.A. (BancoSol)
Bolivia

Jr. Full Stack Software Developer

Microfinance banking and financial services application development.

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

Selected work

Lex OS

AI-powered legal operating system

LegalTech platform for case analysis, jurisprudence exploration, OCR-enabled document intake, evidence panels, per-case workspaces, and administrative controls.

AILegalTechOCRRAG

TechForAGI Gateway

Agent-native API gateway for autonomous AI systems

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

AI AgentsAPI GatewayLLM

NinjaGig AI Suite

AI-powered resume processing and candidate matching

Parses applicant documents, extracts skills and experience signals, and ranks candidate fit against job requirements for recruiter workflows within the NinjaGig ATS platform.

ATSAIRAG.NET 10

Tech For People

AI portfolio and community initiatives

Founder-led AI and cloud applications portfolio including developer mentorship and AI/product initiatives at techforpeople.org.

AICommunityCloud

Capabilities

Cloud & DevOps

AWSAzureCloudflareAzure DevOpsCI/CDDockerTerraformGitmonitoringbackup/recoverySSL/TLSPCI operations

AWS Patterns

EC2S3RDS/DynamoDB patternsLambda/API Gateway patternsSQS/SNS/EventBridge patternsCloudFrontserverless and container-ready architecture

Engineering

C#.NET 10.NET 8ASP.NET CoreMVCBlazorRazorEntity FrameworkSQL ServerJavaScript/TypeScriptNode.jsPythonREST/GraphQL conceptsSOAP/WCFRabbitMQKafkaSignalR/WebSockets

AI / Data & Developer Productivity

LLM applicationsAI agentsRAGprompt designtool/function callingOCRvector searchembeddingsretrieval evaluationsource attributionCursorOpenAI CodexClaude CodeGitHub CopilotAI-assisted refactoringtestingcode reviewdocumentation workflows

Education

  • Universidad Tecnológica Boliviana — Bachelor's Degree Program in Computer Science Computer Science

Certifications

  • Microsoft Azure Architect Technologies (AZ-303) — ITColombia / Microsoft
  • Microservices Architecture with Docker Container — Lite Thinking

Communities

  • ASPIRE Leaders Program — Domain Leader, Technology & AI
  • South Florida Tech Hub — Official Member & active participant in South Florida tech ecosystem activities
  • Tech For People Community — Founder, developer mentorship and AI/product initiatives

Get in touch

mail@diegoleon.me (305) 796-2129 LinkedInEmail