Alejandro Castillo: AI Automation With a Cybersecurity Edge for Small and Mid-Sized Businesses
Most automation projects are built to save time. Far fewer are built to save time and hold up under a security review. Alejandro Castillo does both. Based in Chicago, Alex is an AI automation consultant who spent years inside Fortune 500 environments and small nonprofits as an analyst, engineer, architect, and manager before moving to the vendor side as a customer success and professional services consultant. That range gives him an unusual mix of skills. He can build the automation, harden it, and explain it to the people who have to live with it. He works with small and mid-sized businesses that want to remove the repetitive work slowing their teams down, without trading away security to do it. This spotlight looks at how he works and who he helps most.
Who is Alejandro Castillo and what does he do?
Alejandro Castillo, who goes by Alex, is an AI automation consultant based in Chicago, Illinois, with a deep background in cybersecurity. He has worked on the client side as an analyst, engineer, architect, and manager, and on the vendor side in customer enablement, customer success, and professional services. That history means he has seen automation succeed and fail from almost every seat in the room. His technical range is broad. He has worked across networking (routers, switches, firewalls, proxies, web application firewalls, load balancers, and network forensics), cloud platforms including AWS and GCP, and automation in every form, from old-school bash and Python scripts to SOAR and hyperautomation platforms to cutting-edge AI agents, harnesses, and apps. Backed by 38+ industry certifications, he brings enterprise-grade expertise without the enterprise-grade complexity. What pulled him toward automation in the first place was toil. Too much human time gets spent on repetitive, undifferentiated work. Alex's mission is to remove that work so people can focus on the things they are uniquely qualified to do, and to make sure that whatever he builds is secure from the start. You can view his full profile at localaisource.com/profile/alejandro-castillo.
What makes his approach different from a typical automation consultant?
The difference is the security lens. Plenty of consultants can wire up an automation that works on a good day. Far fewer think about what happens when that automation touches sensitive data, fails in an unexpected way, or becomes a target itself. Alex builds with security as a default rather than an afterthought, because his career started in cybersecurity rather than ending up there. He works across the full automation maturity curve. For a business that just needs a repetitive task handled, that might mean a focused Python script. For a more mature operation, it might mean a SOAR or hyperautomation workflow that coordinates multiple systems. And for teams ready to go further, it means AI agents and harnesses that can reason through a process rather than just follow fixed steps. He meets clients where they are instead of selling the most complicated option. The other thing that sets him apart is perspective. Having worked inside large enterprises and on the vendor side that serves them, Alex knows what good looks like at scale, and he deliberately strips out the bureaucracy and overhead so a smaller business can get the benefit without the bloat. Clients get work that is fast, practical, and built right the first time, with the assurance that it will not quietly introduce risk.
Who does Alejandro Castillo help most?
Alex focuses on small and mid-sized businesses and nonprofits, the organizations that feel the cost of manual work most acutely and can least afford a security mistake. Teams buried in repetitive work. When staff spend hours each day on data entry, triage, reporting, or copy-paste workflows, that is time pulled away from the work only they can do. Alex builds the automation that gives those hours back, scoped tightly so it works reliably and the team can trust it. Businesses that handle sensitive information. Companies in regulated or trust-sensitive spaces cannot bolt on automation and hope it is safe. Alex's cybersecurity background means he can build automation that handles confidential data responsibly, and he can also step in purely to assess security, run an audit, or advise. Organizations priced out of enterprise talent. Much of the deep automation and security expertise in the market is locked behind enterprise consulting fees. Alex left corporate work specifically to serve smaller companies, because he wanted to do work where he can make a real difference rather than navigate bureaucracy and politics. That motivation shapes who he takes on. His goal over time is to make expertise that used to require a full security or automation team available to businesses that could never previously afford it.
What kinds of AI and automation projects does he take on?
Alex's work spans AI strategy, implementation, automation, training, and custom development, but in practice his engagements tend to fall into three areas. Workflow automation. Designing and building automation that removes manual, repetitive steps from a business process, using the right tool for the maturity of the client, from scripts to SOAR platforms to AI-driven workflows. The measure of success is simple. The toil goes away and the result holds up. AI agents and applied AI. This is where his most distinctive work lives. As one example, Alex built an AI agent that pulls down threat intelligence feeds and turns them into working detections using Palantir's Alerting and Detection Strategy (ADS) framework. What made it notable is that the agent wrote both the detection logic and the corresponding attack code to validate it, effectively functioning like a junior detection engineer that works around the clock at machine speed and a fraction of the cost. He is focused on replicating that pattern so that small businesses, which normally cannot afford specialists like this, can access the same capability for little more than the cost of the tokens it consumes. Security assessment and consulting. Beyond building, Alex can assess the security of existing systems, perform audits, and provide consultation, drawing on his networking, cloud, and cybersecurity background. For a business that wants a second set of expert eyes before or after an automation goes live, this is a natural fit. To see his specialties and current availability, visit localaisource.com/profile/alejandro-castillo.
How can you connect with Alejandro Castillo?
The most direct route is his LocalAISource profile at localaisource.com/profile/alejandro-castillo, which lists his specialties, his Chicago location, and how to reach him to start a conversation. He works remotely, onsite, and in hybrid arrangements depending on what the engagement needs. You can also find him on LinkedIn at linkedin.com/in/castilloa. His consulting rate is $120 per hour, reflecting the depth of his enterprise and security background while staying well below what a comparable enterprise firm would charge for the same expertise. The best first step is a conversation about where your team is losing time, what data and systems are involved, and whether automation, an AI agent, or a security review is the right move. Alex's approach is to be direct about fit and to build something you can actually rely on, secure by design from the start. For businesses comparing AI automation specialists, you can browse the LocalAISource directory at localaisource.com/specialties/ai-automation-workflow.
Work with Alejandro Castillo
A Chicago AI automation consultant with a cybersecurity edge who helps small and mid-sized businesses remove repetitive work and build automations that are fast, practical, and secure by design.
Frequently Asked Questions
Alex specializes in AI automation and workflow design for small and mid-sized businesses, with a cybersecurity background that informs everything he builds. His capabilities span AI strategy and consulting, implementation and integration, automation across scripts, SOAR, and AI agents, custom AI development, and security assessment. The common thread is automation that removes repetitive work while staying secure by design.
Alex is based in Chicago, Illinois. He works with clients remotely, onsite, and in hybrid arrangements depending on the project. You can review his profile and contact him directly at localaisource.com/profile/alejandro-castillo.
His rate is $120 per hour. That reflects an enterprise and cybersecurity background and 38+ industry certifications, while remaining far more accessible than comparable enterprise consulting firms. To discuss a specific project, reach him through his LocalAISource profile.
Automation often touches sensitive data and connects multiple systems, which means a poorly built automation can quietly create new risk. Alex's career began in cybersecurity, covering networking, cloud, and detection engineering, so he builds automation that is secure from the start rather than hardened after the fact. For any business handling confidential information, that is a meaningful difference.
It means security is considered while the automation is being built, not patched on afterward. Alex factors in how data is handled, how systems authenticate to each other, and how the automation behaves when something goes wrong, so the finished work is both useful and safe. Clients get less manual work and fewer risks at the same time.
He focuses on small and mid-sized businesses and nonprofits, especially teams losing hours to repetitive work, organizations that handle sensitive data, and companies that have historically been priced out of enterprise-level automation and security talent. He intentionally left corporate work to serve smaller organizations where he can make a direct impact.
Yes. Because he has worked in customer enablement and professional services, Alex is comfortable meeting clients at the beginning of their journey. He starts with the right-sized solution for where you are, whether that is a simple automated workflow or a more advanced AI agent, and explains it clearly enough that your team can rely on it.
Alex brings the depth you would expect from an enterprise firm, including a Fortune 500 background and dozens of certifications, but without the bureaucracy, handoffs, and pricing that come with it. You work directly with the person doing the building, and the work is built secure by design rather than passed to a junior team for implementation.
You can browse AI automation and workflow specialists at localaisource.com/specialties/ai-automation-workflow. For a broader search across strategy, implementation, custom development, and security-minded specialists, visit localaisource.com/search and filter by specialty and location.
Cite this article:
LocalAISource. "Alejandro Castillo: AI Automation With a Cybersecurity Edge for Small and Mid-Sized Businesses." LocalAISource Blog, 2026-09-22. https://localaisource.com/blog/alejandro-castillo-ai-automation-cybersecurity-chicago-ilRelated Specialties
Related Reading
George McIntire and GSM AI: Production-Grade Machine Learning from Berkeley
Meet George McIntire, a Berkeley-based data science and AI/ML consultant with 8+ years and a UC Berkeley Master's, building production ML systems through GSM AI across NLP, audio ML, IoT anomaly detection, and real estate analytics.
Gregory Shavers Jr: Practical AI and Automation for Small Businesses, Creators, and Independent Professionals
Meet Gregory Shavers Jr., a Spartanburg, SC technologist helping small businesses, creators, and independent professionals use AI practically — with a focus on local AI systems, Python automation, and workflows you actually own.
Service Storm: Field Service Operations Software Built in Beaumont, Texas
Service Storm is a field service operations platform based in Beaumont, Texas. Learn what FSM software does, how AI is changing field service management, and how to connect with Service Storm on LocalAISource.
Find an AI expert who can help
LocalAISource is the national directory of verified AI implementation professionals. Browse by specialty, location, or take our 90-second AI Readiness Quiz.