Arun Kumar

Client: Experian

• Designed and implemented secure, scalable AWS network Architectures using VPC, subnets, transit gateway, Direct Connect, VPN and Route53 ensuring high availability and optimized performance.
• Proficient in troubleshooting AWS networking services, including ALB, NLB, security groups, NACLs, VPC Peering, etc., ensuring streamlined cloud connectivity.
• Automated network configurations and monitoring using AWS CLI, Terraform and Cloudwatch reducing manual effort and improving operational efficiency.
• Utilized network management tools for monitoring, configuration management, and issue resolution.
• Collaborated with cross-functional teams to support network infrastructure for critical projects and initiatives.

Client: Cigna Healthcare

• Provided technical support for AWS cloud services to ensure high availability and performance for clients
• Deployed and managed AWS services such as EC2, S3, RDS, VPC
• Showed proficiency in configuring and managing AWS VPC, subnets, route tables and security groups to ensure secure and efficient network architecture
• Responded to and resolved customer inquiries and technical issues related to AWS services such as EC2, S3, VPC, and other infrastructure components
• Utilized Cloudwatch, AWS Trusted Advisor and AWS Cost Explorer for monitoring, performance tuning and cost optimization
• Collaborated with cross-functional teams to implement automation solutions using AWS CloudFormation and other IaC tools
• Demonstrated good working experience in configuring and implementing ALBs, NLBs, AWS WAF, and Shield for Ingress traffic control from the Internet
• Client- Cigna Healthcare
• Skills used: Amazon Web Services (AWS), AWS CloudFormation, AWS Identity and Access Management (AWS IAM), AWS Lambda, Amazon VPC, Terraform, AWS Command Line Interface (CLI), Amazon S3, Amazon SQS, Cloud Infrastructure, Technical Support, Terraform(basics)

Client: Express Scripts Inc

• Successfully led a geographically diverse team of 21 colleagues from different cultural and ethnicity
• Demonstrated expertise in efficiently provisioning and de-provisioning users and generic accounts on Active Directory, MS Exchange, and RACF
• Implemented robust access controls by managing users' login access and authorization through security groups and RSA tokens, ensuring a secure environment
• Developed and implemented a proactive approach to monitor and manage periodic Service Level Agreement (SLA) reports for clients, ensuring tasks and incidents were addressed within agreed-upon timelines
• Analyzed and resolved issues escalated to the IAM team through Incidents, consistently providing effective and timely solutions
• Created comprehensive project Standard Operating Procedures (SOPs) that enhanced team efficiency and consistency in IAM processes
• Client- Express Scripts Inc
• Skills used: ServiceNow, Resolving Issues, Team Leadership, User Provisioning, Microsoft SQL Server, Active Directory, Communication, Databases, Troubleshooting, Technical Specs, Identity & Access Management (IAM), Teamwork, Access Management, IT Service Management, Cyberark, Technical Analysis

Client: Horizon Healthcare Services

• Acted as the primary point of contact between management, clients, and the team, ensuring smooth communication and efficient resolution of issues
• Demonstrated proactive ownership by promptly addressing customer requests, issues, and problems, ensuring timely resolution and minimizing downtime
• Played a key role in implementing change management processes within the project, effectively coordinating with stakeholders and ensuring seamless transitions
• Identified opportunities for service improvement and efficiency enhancement, actively contributing to process optimization and client satisfaction
• Maintained accurate and comprehensive documentation of incidents, actions taken, and resolutions, ensuring a knowledge repository for future reference
• Client- Horizon Healthcare Services
• Skills used: ServiceNow, Analytical Skills, Team Leadership, Incident Management, Cross-functional Team Leadership, Agile Methodologies, Communication, Databases, Technical Specs, Change Management, Teamwork, IT Service Management, Request Management

Client- Tata Teleservices Ltd

• Successfully configured VAS products on production and development environments, ensuring seamless functionality and optimal performance for customers
• Proactively conducted end-to-end product testing in the development environment, identifying and addressing potential issues before deployment
• Proactive Monitoring and Issue Resolution: Recorded health checkups of servers and applications, implementing proactive measures to identify and address potential issues, minimizing downtime and improving system stability
• Customized MIS Reporting: Generated and customized Management Information System (MIS) reports, tailoring them to meet specific client requirements and provide meaningful insights into system performance and service delivery
• Client- Tata Teleservices Ltd
• Skills used: Resolving Issues, Linux Server, User Provisioning, Microsoft SQL Server, Technical Specs, Programming Languages, Teamwork, IT Service Management, Technical Analysis

Client- Nokia Siemens Networks

• Successfully carried out NSN BSC commissioning and integration tasks, ensuring the proper functioning and integration of BSC network elements
• Provided L2 support to the Operations and Maintenance (O&M) team on the client-side, resolving network issues and ensuring smooth operations
• Conducted comprehensive acceptance testing of BSC equipment, ensuring compliance with specifications and quality standards
• Contributed to regional quality of service by performing network optimization at the cellular/cluster level for 2G networks
• Client- Nokia Siemens Networks
• Skills used: Analytical Skills, Call test, Wireless Networking, Global System for Mobile Communications (GSM), Enhanced Data Rates for GSM Evolution (EDGE), Universal Mobile Telecommunications System (UMTS), Router Configuration