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Angel
Arciniega

Staff/Lead Fullstack Engineer | AI-Powered Systems

Building scalable cloud solutions & AI-powered platforms with cutting-edge technologies and unwavering commitment to code quality.

Angel Arciniega

About Me

I'm a senior engineer with 9+ years architecting and scaling full-stack platforms — from high-traffic monoliths at Intuit (Mailchimp) to serverless systems I designed end to end as the architectural anchor of a healthcare startup.

I've led company-scale cloud migrations, cut infrastructure costs 10x, and shipped AI-powered features from data layer to UI. I care about the details that compound: observability, developer experience, mentoring, and code that stays maintainable long after launch.

9+ Years Experience

Building scalable solutions across various industries

Performance First

10x infrastructure cost reduction; platforms serving millions

Team Leadership

Mentoring developers and leading cross-functional teams

Cloud Expert

AWS & GCP at production scale — migrations, serverless, Kubernetes

Technical Expertise

Skills & Technologies

The stack I reach for to ship scalable, performant, maintainable products

Frontend

React
Next.js
TypeScript
JavaScript
Angular
Redux
TailwindCSS
React Native
Flutter
Framer Motion
Three.js
Web Components (Lit)

Backend

Node.js
Express.js
Fastify
GraphQL (Apollo)
C# / .NET Core
Python
Go
Java (Spring Boot)
PHP
REST & Microservices

Cloud & DevOps

AWS (Lambda, S3, EC2, RDS)
AWS CloudFront
AWS SES
Kubernetes (EKS)
Google Cloud Platform
Docker
Serverless Architecture
GitHub Actions (CI/CD)
AWS Secrets Manager

Database & Storage

PostgreSQL
MongoDB
MySQL
SQL Server (T-SQL)
Redis
Elasticsearch
Prisma ORM

AI & Machine Learning

OpenAI API
AI Chat & Matching Engines
TensorFlow
AI-Assisted Development (Cursor, Copilot)

Testing & Observability

Playwright
Jest
Cypress
Datadog
Sentry
PostHog
Git & GitHub
Jira & Confluence

Featured Projects

A showcase of innovative solutions built with cutting-edge technologies

AI-Powered Education Platform
Featured

AI-Powered Education Platform

Customizable course creation system with AI-driven content generation and student performance analytics.

ReactNext.jsNode.jsMongoDB+6
Biometric Data Management Dashboard
Featured

Biometric Data Management Dashboard

Enterprise dashboard for managing and analyzing biometric data with predictive analytics.

ReactTypeScriptFastifyGraphQL+6
SafePass & SafeBusiness
Featured

SafePass & SafeBusiness

Mobile and web applications for community security and business management with IoT integration.

React NativeFlutterNext.jsNode.js+6
Code

Work Experience

9+ years of building innovative solutions across various industries

  1. Senior Software Engineer

    Intuit (Mailchimp)

    Aug 2025 – Mar 2026
    Remote
    Full-time

    Modernized core product surfaces of Mailchimp's high-traffic campaign platform, balancing feature delivery with systematic tech-debt reduction on a 15-engineer team.

    Key Achievements:

    • Engineered a brand-new email-editing UI in React and TypeScript, modernizing one of Mailchimp's most heavily used product surfaces
    • Optimized the campaign-creation engine inside a high-traffic PHP/React monolith, increasing throughput and reliability of core systems
    • Operated production workloads on Kubernetes (EKS) with PostgreSQL across GCP and AWS, instrumenting Datadog observability that accelerated incident detection and resolution
    • Hardened CI/CD with GitHub Actions plus Jest and Playwright coverage, improving deployment safety and release cadence

    Technologies:

    ReactTypeScriptPHPPostgreSQLKubernetesGCPAWSDatadogPlaywright

  2. Senior Software Engineer

    Vetted Health

    Jul 2024 – Aug 2025
    Remote
    Full-time

    Served as architectural anchor on an 8-engineer team, owning end-to-end architecture across frontend, backend, job scheduling, SMS delivery, and the candidate matching engine.

    Key Achievements:

    • Led the company's largest architectural initiative: migrated the entire infrastructure from Vercel to AWS (S3, RDS, ECS, Lambda, API Gateway, CloudFront, Route53)
    • Cut the infrastructure bill 10x by optimizing traffic patterns and re-architecting legacy cron jobs onto a serverless Lambda scheduling model
    • Engineered the candidate matching engine in Node.js, TypeScript, and Python, improving match relevance and processing efficiency
    • Designed and shipped AI chat and quick-response features end to end, enabling real-time, intelligent candidate interactions

    Technologies:

    Next.jsNode.jsTypeScriptPythonPostgreSQLAWS LambdaECSCloudFrontTailwindCSS

  3. Senior Software Developer

    Sonatafy Technologies

    May 2021 – Jul 2024
    Remote
    Full-time

    Led development across an AI-driven course-creation platform and a biometric-data dashboard, mentoring developers while owning architecture and delivery.

    Key Achievements:

    • Led and mentored a team of developers building an AI-driven course-creation platform, raising technical quality and delivery consistency
    • Built a biometric-data dashboard with reusable, framework-agnostic web components in Lit and React over a Fastify/GraphQL/Prisma backend
    • Architected serverless data processing with AWS Lambda and Python workers consuming SQS queues
    • Established an AWS CloudFront CDN, significantly improving global performance and high-traffic reliability

    Technologies:

    ReactLitFastifyGraphQLPrismaAWSTypeScript.NET CorePostHogSentry

  4. Senior Software Developer

    ArkusNexus

    Oct 2020 – May 2021
    Remote
    Full-time

    Built Catalytic Risk's insurance platform full-stack: an Angular SPA with embedded React web components over a multi-layered .NET Core REST API.

    Key Achievements:

    • Built a multi-layered REST/Web API in .NET Core and C# powering policy, profile, and transaction workflows
    • Deployed a responsive Angular 9 SPA with TypeScript and RxJS, embedding React modules via web components
    • Implemented e-commerce REST endpoints with Node.js, TypeScript, and Express in a microservices architecture
    • Modeled and managed policy and transaction data in Microsoft SQL Server (T-SQL)

    Technologies:

    .NET CoreC#AngularReactNode.jsTypeScriptMSSQLSentry

  5. Fullstack Developer

    Quattro Marketing Group

    Apr 2019 – Oct 2020
    Mexicali, Mexico
    Full-time

    Built the SafePass and SafeBusiness security and community-management platforms end to end across web, mobile, and IoT.

    Key Achievements:

    • Shipped SafePass and SafeBusiness across web and mobile — React Native apps (SafeBusiness later migrated to Flutter) with Next.js SSR web frontends
    • Constructed a serverless Node.js backend on AWS Lambda and API Gateway, with ASP.NET / .NET Core services for advanced business logic
    • Automated access control with QR codes and machine-learning license-plate recognition, integrated with residential IoT systems
    • Added Elasticsearch-powered search over security logs and resident data, plus PayPal payments for dues and shared services

    Technologies:

    React NativeFlutterNext.jsNode.jsAWS LambdaMongoDBMySQLElasticsearch

  6. Fullstack Software Engineer

    Skyworks Solutions Inc

    May 2016 – Apr 2019
    Mexicali, Mexico
    Full-time

    Built internal engineering and HR platforms for IoT test-device operations in semiconductor manufacturing.

    Key Achievements:

    • Built analytics and metrics dashboards in Angular/AngularJS visualizing IoT test-device data and manufacturing KPIs
    • Developed data-processing and analytics services in Python and Go powering internal metrics tooling
    • Shipped a part-number validation system standardizing components across manufacturing and test workflows
    • Built an HR rewards platform incentivizing performance through rank- and metric-based prizes

    Technologies:

    C#.NETAngularNode.jsPythonGoJavaMySQL

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Get In Touch

Have a project in mind or want to collaborate? Let's discuss how we can work together.

Contact Information

Location

Mazatlán, Sinaloa, Mexico

Open to remote opportunities worldwide

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