▪ Transitioned into the role, managing a small team of system support engineers to ensure efficient operations and comprehensive system and infrastructure management.▪ Teamed up with cross-functional teams to implement system change management, overseeing testing procedures and validating post-change stability.▪ Collaborated closely with the development team to implement system enhancements and prompt fixes, ensuring smooth production releases.▪ Installed, configured, and managed Kannel SMS Gateway, working with smsbox, smppbox, and bearerbox for optimized A2P messaging for Pakistani-Telcos, particularly Jazz/Mobilink and Zong.▪ In-depth understanding of the SMPP protocol, HTTP SMSC connections, and live traffic (MO/MT) routing across multiple SMSCs.▪ Provided comprehensive network support in IP addressing, subnetting, ip-tables, and troubleshooting to ensure the smooth functioning of interconnected systems.▪ Deployed the ELK stack with Graylog for centralized log analysis, streamlining log review, and empowering the Tier-1 team to close SMS DLR tickets.▪ Integrated Filebeat across diverse applications, employing grok patterns to normalize log data and enhance system behavior troubleshooting and analysis.▪ Proficient in integrating and managing monitoring solutions, specifically with Prometheus and Grafana, for real-time system metric visibility and proactive issue resolution.▪ Managed routine database backups, restoration procedures, and user account management. Moreover, set up master-slave replications for enhanced system reliability.▪ Engaged with seniors to interact with clients, engaging in weekly project meetings across the entire SDLC.▪ Collaborated with SOC compliance for SIEM log integration and EDR configuration, emphasizing expertise with CrowdStrike and Qualys. Managed communication matrices for streamlined operations.

▪ Managed system support for over 80 Linux/Unix servers (RHEL, CentOS, and Debian 7/8/9/10/11), covering OS installation, package management, pre-prod testing, and post-prod monitoring.▪ Proficient in system administration, encompassing routine maintenance, backups, upgrades, and daily operations. Expertise in software installation, patching, storage utilization, and performance monitoring across Web, database, and SIP server environments.▪ Skilled at configuring and optimizing LAMP (Linux, Apache, MySQL, and PHP) stack, ensuring efficient system performance and seamless web application deployment. ▪ Assisted with on-site hardware installation with the IT team and RAID configuration on Dell PowerEdge (R710, R720, R620) servers, networking equipment, and other supporting hardware.▪ Delivered daily end-user support, managing administration access; user accounts; and resolving file permission and ownership issues to ensure seamless system operations.▪ Collaborated with the Tier-1 team for technical support, engaging with clients to address daily inquiries and providing tech support for a 24/7 work environment.▪ Proactively monitored A2P traffic (API and SMPP), tracking ESME and SMSC issues to ensure continuous flow and uninterrupted messaging with optimal SRT.▪ Automated and supervised hourly and nightly backups to protect real-time data and mitigate downtime risks.▪ Proficient in database management, overseeing performance tuning, monitoring, data migration, and daily reporting, with expertise in utilizing both the Linux console and GUI platforms.▪ Creating shell scripts for automation, specializing in SED and AWK one-liners. Proficient in PHP and Bash for optimizing workflow solutions.▪ Collaborated with vendor peers to coordinate and ensure seamless execution of scheduled activities, serving as a POC for international and local clients.▪ Maintained strong relationships with peers and clients through collaborative troubleshooting and responsive support, ensuring a positive work environment.▪ Able to provide fundamental VoIP support, SIP responses and methods, managing CDRs and basic call flows in Asterisk and openSIPS environments.