zafranullah

Managed 5+ developer accounts across Google Play Console and Apple App Store, publishing 25+ apps/games with 100% compliance to platform guidelines while optimizing metadata for 30% higher organic discoverability. Led and mentored a team of 5 Unity developers, 3 Graphic Designers and 3D Modeller, reducing onboarding time by 40% through paired programming and code review systems. Managed 15+ Unity3D projects using Git/GitHub, enabling 50% faster collaboration across cross-functional teams (artists, QA, designers). Automated multi-platform builds (iOS/Android/PC) using CI/CD pipelines, cutting deployment time from 2 hours to 45 minutes per release. Implemented GitHub release management for 30+ game versions, enabling one-click rollbacks that reduced production incidents by 65%. Optimized multiplayer networking (Photon/Unity Netcode), reducing latency by 200ms and increasing concurrent player capacity by 40%. Designed LiveOps systems for real-time content updates, boosting player retention by 25% through automated seasonal events/daily rewards. Identified and resolved 120+ performance bottlenecks, improving FPS by 35% on low-end mobile devices through memory optimization. Spearheaded C# code quality initiatives that reduced bugs by 60% via standardized unit testing and peer review processes. Authored 15+ GDDs (Game Design Documents) using Confluence/Notion, standardizing mechanics documentation and reducing team onboarding time by 40%. Optimized ASO (App Store Optimization) via Sensor Tower, App Annie, and Google Play Console, boosting organic installs by 35% through keyword/metadata A/B testing. Led UI/UX pipelines from wireframing (Figma) to implementation (Unity UI Toolkit), improving player retention by 25% via iterative prototyping and heatmap analysis (Hotjar).

Deployed Microsoft 365 stack (Active Directory, Exchange 2019, Teams) for 500+ users, reducing IT ticket resolution time by 30%. Integrated ERP (Dynamics 365) with legacy systems, eliminating 25 hours/week of manual data entry. Automated endpoint security via System Center (BitLocker/SCCM), achieving 100% compliance. Implemented Univention Corporate Server with Kopano email with 2000+ email accounts. Provisioned 20+ servers using Docker, Vagrant and VMware, cutting hardware costs by 40%. Configured high-availability web clusters (Apache/Tomcat/IIS) supporting 10K+ daily requests for JSP/ASP.NET apps. Administered hybrid database environments (MySQL/Oracle 11g-19c) with RMAN backups, reducing RTO from 4 hours to 15 minutes. Hardened 15+ servers using CIS Benchmarks, eliminating all critical vulnerabilities in security audits. Deployed pfSense/Huawei USG firewalls with Sangfor IAM, blocking 10000+ unauthorized access attempts monthly. Secured web applications via ModSecurity/Nginx/SE Linux configurations that passed OWASP Top 10 penetration tests. Maintained 99.99% uptime for SAN/NAS backups through automated sync processes. Reduced incident response time by 60% via LibreNMS/Nagios monitoring implementations. Designed OpenVPN infrastructure supporting 300+ concurrent remote users, achieving 99.9% uptime and reducing connection latency by 40% through TLS optimization.

Deployed VMware Cloud Foundation for 400+ virtual machines, improving resource utilization by 35%. Managed VMware Workspace One for 200+ endpoints, reducing device provisioning time. Administered Linux (Red Hat RHEL, LEAPP, Satellite) and Windows Server environments, managing IIS configuration and maintenance for over 300 servers to ensure high availability. Managing Email Services for 12000+ users via Zimbra Collaboration Suite & Microsoft Exchange. Optimized DNS performance (BIND/PowerDNS) for 100+ domains, reducing query response time by 60%. Implemented Let's Encrypt SSL automation, cutting certificate renewal time from 3 hours to 5 minutes. Designed Veeam backup strategy achieving 99.99% recovery success rate in DR drills. Generated and configured 50+ SSL certificates (Let's Encrypt & commercial CA) for web servers and applications, achieving 100% HTTPS compliance. Implemented digital signature system for Zimbra email, enabling legally-binding authentication for 200+ corporate users. Redesigned VLAN architecture for 10+ departments, reducing broadcast traffic by 40%. Implemented LibreNMS for network monitoring, detecting 95% of issues before user impact.

Led the transformation from legacy copper to FTTC/FTTH infrastructure, delivering up to a 100x increase in broadband speeds. Supervised revenue, sales, and complaint resolution for a customer base of 12,000+ users. Mapped and identified Dry, Grey & Brown field sites for fiber migration, cutting projected rollout costs by 30%. Optimized VDSL2+ configurations, boosting average speeds from 50Mbps to 150Mbps for 5,000+ subscribers. Collaborated with engineering teams to understand and support EWSD switching systems and optical fiber infrastructure. Gained hands-on experience with ZTE MSG 9000 media & gateway operations. Assisted in the analysis and reporting of Control Fault Management System (CFMS) alerts.

Design, Develop and Deliver high quality games. Strong C# object-oriented programming and scripting language skills. Understanding of UX design process and experience working with UX design team and development team.