Harminder Singh
Support Specialist
10years in tech
3years in support
2projects
B2English
Overview
AI data annotation and evaluation specialist with experience reviewing training data quality for AI model development. Built independent generative-AI products (Nexora AI and Omni AI) involving prompt testing and multi-model response evaluation. Also has experience in web development and IT support plus a remote cybersecurity externship focused on IoT security and secure MQTT communications.
Timeline
Cybersecurity Extern
·
Middle
Hydroficient
·
Internship
Completed an 8-week IoT security externship focused on secure communications, vulnerability assessment, risk analysis, and security documentation. Configured MQTT communications with TLS encryption and certificate-based authentication. Delivered security-related outputs as part of the externship deliverables in a remote format.
MQTT
AI Data Annotation Specialist
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Middle
Handshake AI
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Full-Time
Annotated text, image, and structured datasets to support AI and machine-learning training. Reviewed and validated annotations for accuracy, consistency, and compliance with project guidelines. Conducted quality checks, corrected labeling issues, and provided feedback to improve training-data reliability while working independently in a remote setup.
Freelance Web Developer & IT Support
·
Middle
Risen PCS
·
Freelance
Provided technical support and troubleshooting for small-business clients, covering software, hardware, and website issues. Built and maintained client websites using front-end web technologies and WordPress. Supported issue resolution and contributed to ongoing improvements through practical IT and web maintenance work.
JavaScript
WordPress
Web Developer / IT Help Desk Support
·
Middle
FireStarter Group
·
Full-Time
Delivered remote technical support and maintained front-end website components. Performed QA testing prior to deployments to help ensure release readiness. Supported troubleshooting and operational readiness across help desk and development tasks.
University of Pennsylvania
Bachelor's Degree ·
Information Science & Technology
Projects
Omni AI
Created an AI comparison product to evaluate and compare outputs from multiple generative-AI systems. Built functionality to assess response differences across prompts based on usefulness and consistency. Developed hands-on experience with prompt refinement and iterative testing to improve the user experience.
Nexora AI
Built an independent AI-focused product centered on generative-AI workflow development. Designed and tested prompts, reviewed model responses, and iterated based on evaluation results. Focused on turning an AI concept into a working product experience through repeated refinement.
Technical skills
JavaScript
PHP
PHP
WordPress
AI/ML
LLM
IoT
MQTT
Job preferences
- Work permits
- United States
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