Andrés Hernández
ENES

Senior Software Engineer · AI, Backend & Product Engineering · Córdoba, Argentina

I build production software with AI at the core of my engineering workflow.

I'm a Senior Software Engineer with 15+ years of experience building and operating SaaS products, backend systems, APIs, integrations and production infrastructure for international teams.

I work across TypeScript, Node.js, PHP, PostgreSQL and modern AI engineering workflows, including coding agents, MCP servers, LLM integrations and automation. I use AI throughout the software development lifecycle—from architecture and implementation to testing, debugging, security review and CI/CD—while remaining responsible for the software that reaches production.

Córdoba, Argentina · Remote · US / international teams

ResumeSelected workEmailLinkedIn

Engineering focus

AI applied on top of solid software engineering.

Tools change between projects. The work stays consistent: understand systems, integrate pieces, use AI where it increases engineering capability and deliver maintainable production software.

AI & agentic engineering

I use AI agents as part of the engineering environment, not as isolated productivity tools. I work with agents across real codebases for architecture exploration, implementation, testing, debugging, refactoring, security analysis and delivery, and build MCP integrations that connect agents with real APIs and engineering systems.

Codex · Cursor · MCP · LLMs · Agent workflows · AI-assisted SDLC

Backend & integrations

I design and build APIs, third-party integrations and backend logic for systems that need to work with external platforms and existing codebases.

TypeScript · Node.js · PHP · REST APIs · Webhooks

Data & pipelines

I work with relational databases, import/export processes, data validation and migrations. At Specialized, I worked on an enterprise PIM containing more than 200,000 products.

PostgreSQL · MySQL · ETL · Data migrations

Infrastructure & production

I take ownership of the path to production: cloud environments, deployments, CI/CD, incident diagnosis and operating existing systems.

Docker · GitHub Actions · Cloudflare · Vercel · Render · DigitalOcean

Existing systems

A large part of my work is entering systems I didn't design, understanding them quickly and solving problems without requiring a rewrite. That includes legacy platforms, team handoffs and production incidents.

Legacy systems · Troubleshooting · Platform handoffs · Security hardening

Experience

15+ years building and operating production software.

PufCreativDenver, USA · Remote

Senior WordPress Developer

I work on production websites and e-commerce systems for cannabis brands and dispensaries, with a focus on custom WordPress development, third-party integrations and technically complex requirements.

Selected highlights

  • Built a native Dispense API integration that replaced reverse-proxy-based dispensary menus with native WordPress shopping experiences
  • Built WordPress themes and integrations with the Dutchie Pro SDK
  • Built production pages and reusable sections for Prismic-based websites using HTML and CSS, and developed dynamic experiences backed by custom Cloudflare Workers exposing data and functionality to front-end components.
  • For Current Cannabis, built the dynamic Featured In experience and its supporting Cloudflare Worker, with article data reused across the homepage and About Us page.
  • Led the technical handoff of CBD Pros USA from another agency, taking over the existing front-end and back-end repositories and building the cloud environment required to deploy and operate the platform across Vercel, DigitalOcean, Supabase, Contentful, Medusa, Authorize.net and Klaviyo.
  • Built custom store locator plugins using Hoodie and Weedmaps as external data sources
  • Implemented Salesforce, WooCommerce, Authorize.net and Klaviyo integrations
  • Troubleshot critical issues on live WordPress sites, including production failures, compromised installations, malware cleanup and post-incident hardening.
  • Worked on the interactive Hemp Beverage News cannabis beverage regulations map
  • Built and maintained custom WordPress themes and plugins using hooks, filters, custom post types, taxonomies, Gutenberg and ACF across multi-location production websites.
  • Worked with GitHub Actions and Cloudflare as part of deployment and delivery workflows
  • Built a native Dispense API integration that replaced reverse-proxy-based dispensary menus with native WordPress shopping experiences
  • Built production pages and reusable sections for Prismic-based websites using HTML and CSS, plus dynamic experiences backed by Cloudflare Workers, including Current Cannabis's Featured In experience
  • Led the technical handoff of CBD Pros USA, taking over existing front-end and back-end repositories and building the cloud environment required to deploy and operate the platform across Vercel, DigitalOcean, Supabase, Contentful, Medusa, Authorize.net and Klaviyo
  • Built custom WordPress store locator plugins using Hoodie and Weedmaps as external data sources
  • Implemented Salesforce, WooCommerce, Authorize.net and Klaviyo integrations, and built WordPress themes and integrations with the Dutchie Pro SDK
  • Troubleshot critical issues on live WordPress sites, including production failures, compromised installations, malware cleanup and post-incident hardening
  • Built and maintained custom WordPress themes and plugins using hooks, filters, custom post types, taxonomies, Gutenberg and ACF across multi-location production websites

WordPress · WooCommerce · PHP · JavaScript · Gutenberg · ACF · Prismic · Dispense · Dutchie Pro · Hoodie · Weedmaps · Salesforce · Klaviyo · REST APIs · Cloudflare · Cloudflare Workers · GitHub Actions

Kadabra ITMontevideo, Uruguay · Remote

Senior WordPress Developer

Led WordPress development for financial and asset management clients including MidCap Financial, Orofino and Fiduciary Trust International.

Selected highlights

  • Built custom themes, plugins and Elementor components
  • Owned complex API integrations and migration processes
  • Improved platform load times by up to 40% through caching, query and asset delivery optimizations
  • Built multilingual WooCommerce platforms and automated migration workflows

WordPress · WooCommerce · Elementor · PHP · REST APIs · Multilingual

MokaSanta Fe, Argentina · Remote

Senior WordPress Developer

Built international WordPress platforms for clients including Compass Fairs Norway/Denmark, Jenji and Lunaphore.

Selected highlights

  • Built custom REST API endpoints and third-party integrations
  • Worked on multilingual WordPress implementations
  • Improved deployment workflows for international delivery teams

WordPress · PHP · REST APIs · Multilingual · Elementor

Specialized Bicycle ComponentsSan Francisco, USA · Remote

PHP Developer

Worked on an enterprise Contentserv PIM containing more than 200,000 products.

Selected highlights

  • Built custom import/export pipelines
  • Implemented product data validation and quality rules
  • Worked on large-scale product migration with zero data loss

PHP · MySQL · REST APIs · Data Migration · Enterprise PIM

Earlier experiencePreminens · Done! · Sawubona

Ten years building production web applications across agency and product environments, covering backend development, relational databases, CMS integrations and client delivery.

Projects included a high-traffic B2B platform for Philip Morris, government lottery systems with strict reliability requirements, and custom MVC applications built with Laravel and Yii.

Selected work

Systems, integrations and platforms I've built.

AIMCPIntegration

Search Console Insights — MCP server

Built a Model Context Protocol service that lets AI assistants analyze first-party Google Search Console data through a constrained, authenticated tool surface, with OAuth, URL inspection, performance analysis and persistent SEO workflow state.

TypeScriptNode.jsMCP SDKGoogle Search Console APIOAuth 2.0PostgreSQLZodVitestRender

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SaaSBackendInfrastructure

Vienor — SaaS platform

Designed, built and operate a production weather SaaS platform for field-level monitoring. The platform combines multi-company tenancy and role-based access, scheduled multi-provider weather ingestion, derived alerts and notifications, subscriptions and payments, and production infrastructure with reliability controls such as advisory locks, freshness policies, retries, circuit breakers and deduplication.

TypeScriptNode.jsNext.jsPostgreSQLPrismaREST APIsDockerSupabaseRenderVercelGitHub Actions
Visit Vienor

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EnterpriseData

Specialized Bicycle Components — Enterprise PIM

Worked on an enterprise Contentserv PIM with more than 200,000 products, building import/export pipelines, product data validation and quality rules, and supporting a large-scale migration with zero data loss.

PHPMySQLREST APIsETLData validationData migrationContentserv
CannabisIntegration

Native dispensary menus

Custom WordPress integrations that replace reverse-proxy-based dispensary menus with native shopping interfaces powered by cannabis commerce APIs.

WordPressDispenseDutchie ProREST APIs

Read case study →

CannabisE-commercePlatform handoff

CBD Pros USA

Took ownership of an existing front-end and back-end codebase during an agency handoff and built the production environment required to operate it under PufCreativ, including cloud infrastructure, database, CMS, commerce, payments and marketing integrations.

VercelDigitalOceanSupabaseContentfulMedusaAuthorize.netKlaviyo
Visit website
EnterpriseHealthcare

Western Dental

Multi-region WordPress platform supporting 260+ locations, appointment flows, financing and insurance information, and English/Spanish content.

WordPressACFWPMLAPIs
Visit website

Technical writing

AI, MCP, backend and production systems.

Notes based on real AI tooling, architecture, integration, reliability and software operations problems.

Engineering · Production · Legacy Systems

Taking Ownership of an Unfamiliar Production Codebase

A practical approach to taking over an existing production system: mapping architecture, restoring deployability, identifying risk, validating dependencies and earning confidence before making large changes.

Backend · APIs · Reliability

Building Reliable Pipelines Around Third-Party APIs

How to design resilient third-party API pipelines with timeouts, retries, freshness policies, circuit breakers, deduplication, fallbacks and idempotent persistence.

Backend · SaaS · Authorization

Designing Multi-Tenant RBAC for a SaaS

How to model users, memberships, roles, active tenant context and authorization boundaries in a multi-company SaaS without leaking data across tenants.

Backend · PostgreSQL · Reliability

PostgreSQL Advisory Locks for Scheduled Jobs

How to prevent duplicate scheduled work across multiple application instances with PostgreSQL advisory locks, non-blocking acquisition, freshness checks and idempotent job design.

Skills

Tools I use to get the work done.

AI & agentic engineering

Codex · Cursor · MCP · LLM integrations · Agent workflows · Tool calling · Prompt/system design · AI-assisted SDLC

Backend & APIs

TypeScript · Node.js · PHP · JavaScript · REST APIs · Webhooks · Authentication · Third-party integrations · Background processing · Laravel · Yii

Data & systems

PostgreSQL · MySQL · Relational data modeling · Data validation · ETL · Import/export pipelines · Large-scale migrations · Supabase

Infrastructure & delivery

Linux · Docker · Git · GitHub Actions · CI/CD · Cloudflare · Cloudflare Workers · Vercel · Render · DigitalOcean · Production troubleshooting

Frontend & product

React · Next.js · HTML5 · CSS3 · Responsive development · Prismic · Contentful · Technical SEO · Schema markup

WordPress & commerce

WordPress internals · Custom themes · Custom plugins · WooCommerce · Gutenberg · ACF · WP-CLI · Headless WordPress · Performance · Security hardening · Production migrations

Platforms & integrations

Salesforce · Medusa · Authorize.net · Klaviyo · Dispense · Dutchie Pro SDK · Hoodie API · Weedmaps API · Shopify

AI-assisted development is part of my daily engineering workflow for implementation, debugging, testing and code review. I use it as an engineering tool, not as a substitute for understanding the systems I work on.

Education

Education

Contact

Looking for an experienced software engineer for your team?

I'm based in Córdoba, Argentina and work remotely with teams in the US and internationally.

andreeesh@gmail.comLinkedIn