Jeremiah Mendoza
Jeremiah Mendoza

Technical Support Specialist / QA Lead

Open to offers · Member since 19 Jul 2026
Message
Location
Carrollton, United States
Desired salary
Unspecified
Work preference
Remote Only / Full Time, Contract
Experience level
Senior

About

Professional summary

I am a technical diagnostician with more than 20 years of experience resolving hardware, connectivity, and application issues in high-accountability environments.

I have spent the last several years working fully remote, handling complex Fiber/DSL escalations, hardware troubleshooting, and internal helpdesk support with a strong focus on reliable outcomes and SLA adherence.

I also bring hands-on QA and product architecture experience from an independent full-stack software project, where I led defect triage, root-cause analysis, and engineering direction for a Python/FastAPI, PostgreSQL, and React application.

My approach is highly analytical and practical: I trace issues to their source, document the exact failure point, and convert findings into clear actions that reduce rework and prevent repeat incidents.

In addition to support and QA, I have experience with Office 365 administration, network troubleshooting, workstation imaging, hardware repair, and process improvement across technical operations.

I am comfortable working across support, testing, and systems-oriented tasks, and I value environments where precision, ownership, and independent problem-solving are essential.

Skills

12 capabilities

Tech stack & tools

Working toolkit

Data Stores

Development

Languages & Frameworks

Experience

Career history

QA Lead / Product Architect Confidential Full-Stack Application (Personal Project)

Sole non-engineer contributor directing a live full-stack product built on Python/FastAPI, PostgreSQL, and React. Owned requirements, QA testing, defect triage, and engineering direction. Identified and directed fixes for session persistence, API response type mismatches, frontend-backend key mismatches, AI misclassification, third-party integration issues, branching strategy, and bot-detection failures.

Internal Helpdesk & Quality Assurance Telvista

Handled complex Fiber/DSL and hardware escalations in a fully remote environment for more than 7 years. Audited troubleshooting workflows, identified procedural gaps, and authored process improvements adopted team-wide to reduce resolution variance.

IT Consultant (Contract) Settle Pou

Imaged and configured workstations for a 50+ person legal firm during an Office 365 migration. Validated network connectivity, resolved hardware issues, and supported continuity of access to shared network drives through go-live.

Computer Repair & Hardware Specialist Self-Employed

Diagnosed and repaired hardware failures across desktops and laptops for individual and small business clients. Sourced, refurbished, and resold PCs and laptops, and deployed security software to protect against malware and unauthorized access.

Proprietary Quantitative Trading Infrastructure Independent Research

Iterated a proprietary NinjaTrader 8 trading engine through 21 versions using A/B testing to optimize entry signal weighting and reduce loss per trade. Integrated AI tools into prototyping and logic verification to shorten iteration cycles.

Education

Learning history

My Computer Career, Dallas TX

IT Systems Administrator Program, Information Technology / Systems Administration

IT systems administrator training.

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