11/06/2026 updated

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100 % available

Senior Platform/DevOps Engineer | AWS, Terraform, Pulumi, Python, TypeScript, AI | 10+ years

Bollullos de la Mitación, Spain
Only remote
BSc, Computer Engineering (IT), University of Seville (2010 - 2014)
Bollullos de la Mitación, Spain
Only remote
BSc, Computer Engineering (IT), University of Seville (2010 - 2014)

Profile attachments

cv-juan-manuel-lopez-vera-platform-devops-2026-11-06.pdf

About me

I run the platform a product ships on, and I run AI on it safely. I lead a large part of the AWS platform at Najar (Pulumi, Terraform, Fargate, per-PR environments, Datadog) and ship production code daily with Claude Code and MCP. Looking for remote freelance Platform/DevOps or AI-platform work.

AI AgentsGitHub ActionsLLMApplication Programming Interfaces (APIs)Amazon Web ServicesSoftware as a ServiceCloud EngineeringExtract Transform Load (ETL)LinuxDevOpsDjangoElasticsearchPython (Programming Language)PostgreSQLNode.jsRabbitMQRedisPrometheusSecurity Assertion Markup Language (SAML)Single Sign-OnTypeScriptDatadogPulumiGoogle CloudOktaReact.jsFlaskGrafanaInfrastructure as Code (IaC)BackendAWS ECSKubernetesFull Stack DevelopmentAWS FargateCeleryTerraformDocker
Senior Platform / DevOps engineer with 10+ years shipping production software, working as an independent freelancer since 2020. I own problems end to end, from discovery through production, with minimal supervision.

Core skills: AWS (ECS/Fargate, RDS, VPC, ALB, ElastiCache, SQS), infrastructure as code with Terraform and Pulumi, Docker, Kubernetes, GitHub Actions, Datadog, Prometheus/Grafana, Linux. Backend in TypeScript/Node.js (Hono) and Python (Django, Flask), PostgreSQL, Celery, BullMQ, Redis, RabbitMQ, ETL and third-party API integrations. SSO and identity: Okta, Google Workspace, Microsoft Active Directory, SAML, LDAP, RADIUS.

AI-native delivery: I ship production code daily with Claude Code and Cursor wired to MCP connectors, and I configure MCP servers myself. I am building theSpecIAlist, a personal AI-agent platform with a custom MCP server, layered agent permissions and regression evals.

Selected experience:
  • Spend-management SaaS (Welii, now Najar): lead a large part of the AWS platform with Pulumi and Terraform, built automatic per-PR ephemeral environments from scratch, and built and maintain most of the production observability and alerting in Datadog. Architected the data ingestion pipeline that handles 20+ ERP and accounting systems across hundreds of client organizations. Led database recovery in a production data-loss incident using point-in-time recovery, restoring in under two hours.
  • CloudKitchens France: sole owner for about 4 years of the infrastructure, development and requirements of an order-status application, plus ETL integration with global IT systems (Python, Flask, Celery, GCP).
  • SmartLogin: SSO and access-control platform; new RADIUS and LDAP integrations, dockerization, and helped design the migration to cloud-native microservices.
  • GlampingHub: helped build a global booking marketplace (search, payments, calendar sync) and migrated its infrastructure from DigitalOcean to AWS.
English: professional, fluent. Spanish: native. Based in Seville, Spain; remote.

Experience

Professional experience10+ years
Freelancer since2020

Languages

EnglishFluentSpanishNative speaker

Project history

Senior Software Engineer (Freelance)

Welii (now Najar)
SaaS procurement and spend-management platform for finance and IT teams.
  • Lead a large part of the AWS platform: infrastructure as code with Pulumi and Terraform across multiple Fargate services and environments (ECS, VPC, ALB, ACM); built the automatic ephemeral per-PR environment system from scratch.
  • Built and maintain most of the production observability and alerting in Datadog.
  • Owned database recovery in a production data-loss incident: restored RDS PostgreSQL with point-in-time recovery in under two hours from detection.
  • Built the internal service-scaffolding platform that new services start from.
  • Architected and own the ingestion pipeline: 20+ ERP/accounting systems across hundreds of client organizations, plus identity/SSO connectors (Okta, Google Workspace, Microsoft Active Directory).
  • Part of the team's AI-native workflow: AI code review on PRs and severity-based auto-approvers (a teammate led the integration); configured MCP servers, including AWS connections for data analysis.
  • Stack: TypeScript, Hono, Kysely, PostgreSQL, BullMQ, React, AWS, Pulumi, Terraform, Docker, GitHub Actions, Datadog.

Software Engineer (Freelance)

CloudKitchens France
Infrastructure and software enabling delivery-only kitchens.
  • Sole owner of the order-status application's infrastructure, development and requirements for ~4 years, from architecture through delivery, with no other engineer on the project. Riders use the application to know when an order is ready for collection.
  • Built a custom API client integrating with CloudKitchens' global IT systems to extract and load operational data (ETL).
  • Stack: Python, Flask, Celery, ETL, GCP, Docker, Linux.

Software Engineer (Freelance)

SmartLogin
Access-control / SSO platform (SAML, CAS, SSO, MFA) for cloud and on-premise environments.
  • Developed new protocol integrations (RADIUS, LDAP), features and product improvements; upgraded dependencies and dockerized the application.
  • Defined update/upgrade protocols to keep the product stable and helped design the migration to a cloud-native microservices architecture, splitting the monolith into services.
  • Stack: Python, Web2Py, SAML/SSO, OpenLDAP, MariaDB, Redis, Apache, Prometheus, Grafana, Docker, Kubernetes, Linux.

Python/Django Engineer (Freelance)

Toggl Hire
Skills-assessment product for hiring.
  • Authored Python/Django technical tests used by companies to screen candidates and contributed questions to Toggl's assessment knowledge base.
  • Stack: Python, Django, Docker.

Backend Developer (Freelance)

Joinup
MaaS urban-mobility app (taxi, airport transfers, parking, mileage management).
  • Developed integrations, features and performance improvements on a Django/Celery/PostgreSQL backend (PostGIS for location, Heroku infrastructure); sustained 1s average response at 25 rps.
  • Migrated the system to Python 3 and built custom integrations to launch the app in Belgium.
  • Stack: Python, Django (DRF), Celery, PostgreSQL/PostGIS, Redis, Heroku.

Backend Developer

GlampingHub
Global marketplace for booking glamping stays (7M+ visitors/year); hosts manage properties and sync calendars.
  • Built and maintained the platform largely from scratch: helped build the search engine, payment-platform integrations, and calendar sync for hosts.
  • Migrated infrastructure from DigitalOcean to AWS and hardened security (Cloudflare, password policy).
  • Stack: Python, Django (DRF), Celery, PostgreSQL, ElasticSearch, RabbitMQ, AWS, Nginx, Docker, EmberJS, jQuery.

Developer

Babel SI
IT services and digital transformation for large organizations.
  • Built websites on multiple CMS (Drupal, Liferay, WordPress, Plone, OpenCMS) and modeled business processes (BPMN) using Alfresco as document manager and workflow engine.
  • Stack: Java, PHP, Python, JavaScript, Liferay, Drupal, Alfresco, BPMN.

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