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I am a versatile developer and systems administrator with 10+ years of experience spanning system administration, architecture, DevOps automation, cloud infrastructure, and ERP systems. I design secure, scalable solutions that bridge technology and business. I specialize in AI-driven automation, multi-agent orchestration (LangChain, CrewAI, Vertex AI Agents, Google ADK), and workflow automation with n8n and Python microservices. I build hybrid cloud infrastructures (AWS, Azure, GCP) and focus on observability, security, and data intelligence to drive transformation.…I am a versatile developer and systems administrator with 10+ years of experience spanning system administration, architecture, DevOps automation, cloud infrastructure, and ERP systems. I design secure, scalable solutions that bridge technology and business. I specialize in AI-driven automation, multi-agent orchestration (LangChain, CrewAI, Vertex AI Agents, Google ADK), and workflow automation with n8n and Python microservices. I build hybrid cloud infrastructures (AWS, Azure, GCP) and focus on observability, security, and data intelligence to drive transformation.

Mark Leoceli Espartero

AI Engineer, Web Developer, Full Stack Developer, +2

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I am a versatile developer and systems administrator with 10+ years of experience spanning system administration, architecture, DevOps automation, cloud infrastructure, and ERP systems. I design secure, scalable solutions that bridge technology and business. I specialize in AI-driven automation, multi-agent orchestration (LangChain, CrewAI, Vertex AI Agents, Google ADK), and workflow automation with n8n and Python microservices. I build hybrid cloud infrastructures (AWS, Azure, GCP) and focus on observability, security, and data intelligence to drive transformation.…I am a versatile developer and systems administrator with 10+ years of experience spanning system administration, architecture, DevOps automation, cloud infrastructure, and ERP systems. I design secure, scalable solutions that bridge technology and business. I specialize in AI-driven automation, multi-agent orchestration (LangChain, CrewAI, Vertex AI Agents, Google ADK), and workflow automation with n8n and Python microservices. I build hybrid cloud infrastructures (AWS, Azure, GCP) and focus on observability, security, and data intelligence to drive transformation.

Available to hire

I am a versatile developer and systems administrator with 10+ years of experience spanning system administration, architecture, DevOps automation, cloud infrastructure, and ERP systems. I design secure, scalable solutions that bridge technology and business.

I specialize in AI-driven automation, multi-agent orchestration (LangChain, CrewAI, Vertex AI Agents, Google ADK), and workflow automation with n8n and Python microservices. I build hybrid cloud infrastructures (AWS, Azure, GCP) and focus on observability, security, and data intelligence to drive transformation.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Language

English

Fluent

Work Experience

Software Engineer (Freelance) at Independent Projects

December 31, 2025 - December 31, 2025

Provided AI automation, full-stack web app development, and systems integration services for clients in finance, insurance, and small business sectors. Automated client processes through n8n pipelines, integrating Salesforce, HubSpot, and Google Workspace APIs with secure OAuth2 authentication. Designed multi-agent systems (LangChain + CrewAI + Vertex AI) for knowledge retrieval and decision support in finance and operations dashboards. Built Next.js + React.js web apps with Python/FastAPI backends and databases including PostgreSQL+pgvector and MongoDB for hybrid structured/unstructured data handling.

AI System Architect & Developer (Contract) at Gairo AI

June 1, 2025 - November 6, 2025

Designed and deployed a multi-agent orchestration framework using LangGraph+ FastAPI, enabling modular, explainable decision pipelines for insurance workflows. Built RAG pipelines with PostgreSQL+pgvector, Redis, and Vertex AI Search, integrating structured document retrieval into LLM reasoning. Deployed Docker Compose stacks for production environments on AWS ECS and GCP Cloud Run, ensuring secure and observable services. Implemented OAuth2 + RBAC authentication, rate limiting, and audit logs for all internal APIs. Integrated Google ADK agents with Gemini 2.5 for context-enriched knowledge base summarization and conversational reasoning.

IT Support Specialist (Contract-Fulltime) at PTV Group DMCC

January 1, 2021 - January 1, 2021

Spearheaded Salesforce CRM automation and digital transformation across the MENA region, integrating ERP, CRM, and finance workflows to improve quoting accuracy and sales forecasting. Developed internal Python-based automation scripts (Pandas, NumPy, OpenPyXL) to process sales, inventory, and forecast data—reducing manual Excel work by over 80%. Built a machine learning model to analyze historical sales quotes and predict conversion likelihood, improving sales prioritization and quote turnaround time. Automated Excel dashboards and financial performance reports using Python and Power BI, delivering real-time metrics to sales leadership.

IT System Administrator at United Broadcast & Media Solutions

December 1, 2017 - December 1, 2017

Implemented and administered Oracle NetSuite ERP, migrated legacy systems to Azure and Google Workspace, and maintained backend IT ops with VMware, Active Directory, SCCM, and DFS replication. Configured firewalls and VPNs for secure remote access, designed dashboards with Power BI, and led backup/recovery and incident response to improve uptime. Ensured security compliance and disaster recovery readiness through audits and policy updates.