Vimal Vijayakumar

Dedicated Customer Service Associate with experience managing billing processes, customer inquiries, and accurate account management. Proven ability to resolve billing discrepancies, process payments and refunds, and keep CRM and billing records up to date. Strong communicator with a customer-centric approach and a focus on timely issue resolution.

Additional hands-on experience in business document production and in AI, Big Data, and Data Science through internship project work, data preparation, and reporting.

Freelancer - Freelancer - Kottayam, India

(2025-11)

• Performed accurate data entry and maintained digital records in Microsoft Excel.
• Assisted customers in resolving SIM card activation and service-related issues.
• Verified data for accuracy and corrected errors before submission.

Customer Service, Billing and Documentation - BSNL

(2024-09 - 2025-10)

• Managed incoming customer inquiries, addressing concerns and troubleshooting issues related to services and billing, and provided clear solutions to support customer satisfaction.
• Handled billing inquiries, resolved discrepancies, ensured accurate service charges, and processed refunds and account adjustments as per company guidelines.
• Managed customer accounts with timely system updates, including service modifications and payment adjustments, while maintaining data integrity.

Document Production Associate Trainee - Williams Lea India Private Limited

(2024-06 - 2024-09)

• Produced, formatted, and edited business documents, ensuring compliance with client specifications and consistency in style and structure.
• Reviewed and edited documents for accuracy, consistency, and internal and client standards, and assisted senior staff with administrative tasks, reports, and presentations.

AI Intern - Big Data and Data Science - Luminar Technolab

(2023-01 - 2024)

• Assisted in gathering, cleaning, and preprocessing large datasets to support data quality and accuracy for analysis.
• Worked with big data technologies to analyse large datasets and collaborated with the data science team to design and test machine learning models for predictive analysis.
• Created interactive visualisations using Tableau and Matplotlib, and helped prepare reports and presentations to communicate insights to stakeholders.

Master's Degree - Computer Science - MG University, Kottayam, Kerala (2022)

Bachelor's Degree - Electronics - BPC College, Ernakulam, Kerala (2020)

Higher Secondary - Kerala Board of Public Examination, Kottayam, Kerala (2017)