Hire the Best Unix Shell Developers
in the United States

Independent Systems & AI Consultant April 2009 – Present Provide high-end cloud architecture, server tuning, critical-incident recovery, and modern data engineering services to global clients. Completed 140+ engagements on Upwork with a perfect 5.0/5.0 feedback rating. AI Data Pipeline & Serverless Warehousing (2025 – 2026): Engineered a serverless data catalog pipeline using Python (BeautifulSoup, requests) to automatically scrape, parse, and clean investigative articles from target web sources [1]. Structured the raw extracted payload into optimized Apache Parquet tables and deployed them directly to Hugging Face Datasets for serverless hosting [1]. Built an interactive search and query dashboard in Gradio, utilizing custom DNS records (ALIAS/CNAME) to map and serve the app securely on DigitalOcean's cloud. Cloud Infrastructure & Migrations (AWS EC2 / VPS): Architected and built high-availability Linux cloud servers on AWS EC2, configured with WHM/cPanel, Concrete5 CMS, and optimized PHP environments. Successfully migrated legacy physical dedicated servers to scalable Virtual Private Servers (VPS) with CentOS/RHEL. Critical System Recovery & Administration: Diagnosed and resolved emergency service outages, including JBOSS server crash failures, Plesk/cPanel software conflicts on legacy CentOS nodes, and data recovery via mounting RAID arrays on FreeBSD. Configured Snort IDS, hardened server network boundaries, and conducted end-to-end performance audits. UNIX Engineer | E Solutions Corporation March 2008 – April 2009 (1 year 2 months) Supported physical operations and infrastructure for a Tier-1 collocation facility. Administered and engineered OpenBSD, FreeBSD, Linux, and Windows server environments daily. Identified and successfully resolved a high volume of network and host-based security vulnerabilities. Stabilized the physical bandwidth billing system for accuracy and provided system-level engineering support to the web development team. UNIX System Engineer | Hilton Grand Vacations (HGVC) November 2006 – March 2008 (1 year 5 months) Served as the single onsite point of operations for all HP-UX, Solaris, FreeBSD, macOS X, and Linux servers. Enterprise Data Warehouse (EDW) Architecture: Designed and built a custom corporate Data Warehouse using RedHat Enterprise Linux, IBM Information Server, and the Sun N1 toolkit. Backported RedHat clustering utilities and GFS modules specifically for RHEL 4 to support database stability. Tailored operating systems to run the IBM Information Server 8 product family, including IBM DB2 V9.3, WebSphere 6.0, DataStage, and QualityStage. Web Presence Engineering: Designed and deployed the company's external web servers on the Solaris 10 platform using Sun T2000 hardware. Leveraged Solaris Zones, hardware RAID, and the ZFS filesystem to isolate and optimize traffic. Authored custom system automation utilities in Perl, C, and the Bourne shell to debug complex kernel and network issues. UNIX Administrator | Vortech, Inc. 2004 – 2006 (2 years) UNIX Administration & Support | Magna Computer Corp September 2003 – May 2004 (9 months) UNIX System Administrator & Network Engineer | Independent Consultant November 2001 – July 2003 Implemented OpenBSD, Linux, and Windows servers in high-density colocation centers. Configured custom web application servers from scratch using Apache, Perl, PHP, and MySQL. Programmed terminal-based console utilities in C and ncurses, utilizing the GTK toolkit and X11 API. Second Level Support | Jobwarehouse May 2001 – September 2001 (5 months) Provided secondary engineering support for primary web servers and high-volume data processing tasks. Education Valencia Community College | 1996 – 1998 | Computer Science & Systems Study Winter Park High School | 1992 – 1996 | Gifted Academic Program Professional Recommendation "Aaron is a very good systems engineer for Linux, UNIX and Windows. He has an in depth understanding of system internals. I found him to be an honorable man that stands behind his word and keeps on track of the project. He would make a good supervisor in any company." — Shelton R., Sr. IT Consultant / DB2 DBA Expert, Xtivia (worked directly with Aaron at HGVC)

My Specialties: - PySpark development/optimization - Airflow DAG architecture - AWS EMR pipelines - Parquet / S3 performance - Spark shuffle optimization - Python developement I am a Python Data Engineer and my services primarily include: 1/ The development, design and evaluation of ETL/ELT pipeline (this is the core my expertise) 2/ Python development . and 3/ My Data engineering services would include expertise with : - Airflow - SPark/pySpark - EMR and setup of Spark EMR clusters - Python coding - S3 Buckets (creation, Update, OCR upload, ...) - dynamoDB - postgresSQL I do also offer: - Unix Shell scripting (for which I am guru off) - ETL Workflow design (for which I am an expert of) - genAi with the use of Milvus or pgvector My development work comes fully QA tested and ready to be promoted in production. On demand I will include all Unit-test Pytest functions. My work is guaranteed, you are 100% satisfied or it is 100% free! My work also includes project management as I will divide my tasks accordingly and can segment my project in user stories if that can help your organization.

I design and ship production AI automation that's safe to put in front of real customers. I'm the founder of MyAssistant365 (AI automation for SMBs) and owner of CMIT Solutions of Sugar Land (managed IT and cybersecurity for 50+ Houston-area businesses). I bring 24 years of enterprise tech experience (Oracle, HP, Tata Consultancy Services) into modern AI builds with the safety guardrails most generic "AI consultants" skip. What I build: • Claude integrations and custom MCP servers using the Anthropic Agent SDK • n8n workflows (30+ in production), cron orchestration, webhook APIs, error-handling patterns • Voice AI agents on Retell, Vapi, and ElevenLabs, fully integrated with GoHighLevel and other CRMs • Lead generation and CRM automation (Apollo, Snov, drip campaigns, AI lead scoring) • Secure and responsible AI: prompt-injection defense, secret-leak scanning, PII redaction, OAuth scope auditing Why "Human First. AI Assisted." AI is a force multiplier, not a replacement. Every system I ship has a human checkpoint at the high-stakes step. Every credential goes through a secret-leak scan before it touches an language model. That's how AI earns the right to be in production. Best fit for: • Founders who tried ChatGPT plugins and need real automation instead • Agencies that want a Claude or MCP specialist on retainer • SMBs replacing an expensive generic AI consultant with someone who actually ships I will tell you in plain English whether AI is the right tool for your project, what it will cost, and how long it will take. No fluff, no months-long discovery phases.

Looking for challenging new projects which can effectively use my talents and creativity, to generate cost effective software solutions. I'm a world class C programmer (primarily on Unix/Linux) and I'm used to making "impossible" tasks "possible". I have a great deal of expertise in: * real time embedded systems * cross compilation/software construction * source control * network programming * system administration * kernel level programming/device drivers * image processing * performance and metrics

Hello, thanks for reviewing my profile. ~10 years in web and application development. Experience with various languages, including but not limited to C++, C#, PHP, Java, JS, and Python. Experience with various hosting platforms and project management tools, including but not limited to AWS, Docker, Git and SSH. Extensive experience with HTTP REST APIs and OAuth / OAuth2 protocols.

Build web site, web services, API, web based application and reporting service reports(SSRS) Technologies: C# and .NET technologies ASP.NET, JQuery, XML, HTML, CSS, Telerik, API, SQL 2012/2016/2019/2022, VS2019/2022. 25+ years of software development experience 15+ years of web development/design skills Specializing in Microsoft SQL scripts, stored procedure, functions, triggers, Microsoft SQL Reporting Services Report(SSRS) MS SQL/SSRS installation/configuration/agent job creation/maintenance plan AI Evaluation Automation -- Audio file to transcripts to evaluation result(score/comments/summary) SSRS Demo: http://66.94.122.184/sandbox/default.aspx