Network Security Engineer
Resume:
ARUN BATTULA
[Farmington hills, Michigan] *************@*****.***
Cybersecurity Analyst Network Security Engineer
Professional Summary
Network Security Engineer with 3+ years of experience in securing enterprise network infrastructures and managing firewalls, VPNs, and security policies in hybrid and on-prem environments. Proficient in identifying vulnerabilities, responding to incidents, configuring firewall rule sets, and managing endpoint and perimeter security using Cisco Meraki and Palo Alto firewalls. Strong knowledge of access control, encryption, and threat detection. Demonstrated expertise in network security monitoring, VPN security, and risk mitigation across multi-vendor environments.
Core Competencies
Impressive verbal and writing communication skills in English, Telugu & Hindi Languages
Conducted multiple phishing exercises that led to a overall 40% employee awareness improvement towards potential cyber threats.
Monitoring & Analysis: Packet analysis (Wireshark), System logs, Intrusion detection basics
Hands on AWS cloud platform
Maintaining system documentation, resulting in improved audit performance.
Following Risk, Compliance and Regulatory policies
Handling cross functional teams
Security Practices: Network Security, Access Control Systems, Threat Modelling, Security Auditing, Compliance
Security Tools & Technologies: Cisco Meraki Dashboard, SolarWinds & Wireshark
Network Security: ACLs, NAT, Security Policies & Access Control
Cybersecurity Operations: Vulnerability mitigation, Threat monitoring, Change & Incident response
Firewall Administration: Cisco Meraki Dashboard
Risk & Compliance: ITIL Framework, Change Management, Patch Implementation
Infrastructure Support: LAN/WAN segmentation & VLANs
Professional Experience
Network Security Engineer
Saama Technologies – India
June 2020 – October 2023
Monitored and maintained enterprise firewall configurations for Cisco Meraki across multiple client environments.
Administered security policies, NAT rules, object groups, and VPNs to enforce secure access control.
Responded to network security incidents and performed root cause analysis, including VPN downtime, firewall misconfigurations, and wireless access issues.
Configured and supported HSRP and VRRP for gateway redundancy to enhance uptime and minimize risk.
Participated in incident and change management processes; created change tickets, participated in CAB meetings, and deployed firewall changes during maintenance windows.
Used monitoring tools (SolarWinds, Wireshark) to identify anomalies, packet drops, and potential vulnerabilities in the network.
Assisted in network segmentation, VLAN design, and switch-level security best practices to prevent lateral movement and isolate sensitive systems.
Maintained documentation of firewall rulesets, network diagrams, and change logs for audit readiness and compliance reviews.
Crypto Mining Infrastructure & Security Lead
Arovi Granites Pvt Ltd – India
Jan 2017 – June 2020
Assisted in the development of incident response plans, improving reaction times by 40%.
Conducted regular audits, identifying and correcting weak areas in the system’s security to eliminate potential threats.
Designed and secured GPU/CPU/ASIC mining operations by implementing network segmentation and firewalls.
Assisted in network troubleshooting, resulting in reduced downtime by 20%.
Hardened Linux-based systems and monitored processes with watchdog tools to ensure mining operation integrity.
Monitored hardware systems and traffic patterns for anomalies; isolated systems when abnormal behavior was detected.
Designed internal routing policies and deployed access control measures for operational security.
Enhanced system performance by 25% through regular maintenance and updates.
Scrum Master (Security-Aware Development Support)
Smart Search Solutions – India
Jan 2017 – June 2020
Supported development teams in adopting secure coding practices and compliance with security protocols.
Acted as the liaison between technical security teams and developers, helping track resolution of vulnerabilities and issues found during audits.
Promoted security in Agile workflows, ensuring sprint tasks related to access, authentication, and secure deployments were addressed.
Headed Scrum sessions with developers stakeholders
Education
Master of Science – Information Studies (Cybersecurity Focus)
Trine University, USA
2023 – 2025 (Graduating May 3rd)
Bachelor of Technology – Computer Science & Engineering
Jawaharlal Nehru Institute of Technology, India
2012 – 2016
Certifications
Certified Scrum master CSM – Scrum Alliance Organization
Issued Oct 2022 Credential ID 001425196
PMI Agile Certified Practitioner (PMI-ACP)
Issued Oct 2022 · Expires Oct 2025 Credential ID 3357337
Learning Projects
Google Cybersecurity Professional Certificate
Hands on SIEM tools, Google Chronicle, Splunk
Understanding NIST framework policies
Implementing CIA triad
Security Audits
Control and compliance check lists
Control Categories
OSWAP Security Principles
Forage - Cybersecurity Mastercard Security Analyst
Identify and prevent security risks with our (Mastercard) Security Awareness Team Job Simulation
References
Saama Technologies Pvt Ltd
Shivender Gadthey – Senior Network and Security Engineer
*********.*******@*****.***
Arovi Granites
Rosayya – Managing Director
*************@*****.***
Contact this candidate