Sanjay Vasantha kumar

Motivated and detail-oriented Software Engineer with experience in Machine Learning, AI data annotation, Large Language Models (LLM), and customer operations. Skilled in data labelling, AWS CV data processes, UI testing, SEO, and quality assurance within fast-paced environments. Strong analytical and communication skills with the ability to adapt quickly to new technologies and challenges.

Currently based in Auckland and seeking opportunities to contribute technical expertise and business knowledge in a growth-focused organisation.

ICT Security Administrator - Allied Security (Orbit Datacom, DCI Data Center) - Auckland, New Zealand

(2024-01)

ICT Security Administrator at Datacom NZ manages and protects organisational systems that deploy firewalls, manage user access, and actively monitor networks for threats. They also patch vulnerabilities, respond to cyber incidents, and ensure all cloud and data infrastructure complies with strict corporate and government security frameworks to prevent breaches.

• Threat Monitoring & Mitigation: Monitored network activity daily to block cyber threats, reducing unauthorised access incidents.
• Access & Data Control: Configured user permissions to secure client data, achieving 100% compliance ratings on external security audits.
• Vulnerability & Patch Management: Deployed security patches across cloud and local systems, automating updates to cut vulnerabilities.
• Incident Response Leadership: Led rapid containment of security breaches, successfully reducing incident response times.
• Secure Cloud Infrastructure: Managed security frameworks for infrastructure transitions, safely migrating over legacy servers to cloud environments.

Machine Learning Associate - Amazon - Chennai, India

(2022-01 - 2024-12)

Results-driven Machine Learning Associate with experience supporting AI and machine learning projects within AWS CV Data operations. Skilled in data annotation, ground truth validation, Large Language Models (LLM), and quality assurance processes. Demonstrated ability to maintain high accuracy standards, meet SLA targets, and contribute to operational efficiency in fast-paced environments.

• Worked on AWS CV Data projects involving VAR and LLM (AI) technologies.
• Collected, validated, and processed ground truth data for AI and machine learning model development.
• Performed data annotation and labelling using internal tools and established organisational procedures.
• Ensured compliance with SLA requirements, QA standards, and productivity metrics.
• Supported workflow improvements by evaluating emerging technologies and operational processes.
• Contributed to customer satisfaction and business efficiency through accurate data handling and quality-focused delivery.

Associate AR Caller - Technosoft Global Services - Chennai, India

(2020-01 - 2021-12)

Detail-oriented Associate AR Caller with experience in healthcare revenue cycle management and medical claims processing. Skilled in handling insurance claim follow-ups, resolving billing issues, and communicating effectively with insurance providers and patients. Demonstrated ability to maintain accurate records, resolve denied claims efficiently, and support timely payment processes in a fast-paced healthcare environment.

• Managed unpaid and denied medical insurance claims with healthcare providers and insurers.
• Conducted outbound calls to insurance companies to verify claim status and resolve payment-related issues.
• Assisted patients with billing enquiries, payment arrangements, and claim clarifications.
• Resolved denied claims by correcting errors, submitting documentation, and following appeal procedures.
• Maintained accurate records of claims, communications, and payment activities.
• Supported efficient healthcare revenue cycle operations through timely follow-ups and issue resolution.

Master of Business Informatics - Business Informatics - ICL Graduate Business School (2024-04 - 2025-08)

B.E. - Computer Science Engineering - SRM Valliammai Engineering College (2015-06 - 2019-05)