Emmanuel A.

* Repaired and redeployed 900+ POS terminals over a 5-month period, ensuring device readiness for merchant deployment across multiple operational cycles. * Achieved ~98% QA approval rate over the most recent 3-month period following an initial onboarding ramp-up phase, with an overall 0.46% post-deployment return rate across all units handled. * Diagnosed and resolved hardware, software, and network-related faults on POS terminals, including device failures, connectivity disruptions, DHCP/static IP misconfigurations, and firmware issues. * Reduced downtime risk by prioritizing repairs based on operational impact and transaction continuity requirements in a high-volume fintech environment. * Documented diagnostic outcomes and resolution steps per repair cycle and provided technical support to teammates on complex troubleshooting cases.

• Building and managing Windows Server, Active Directory, and Linux lab environments independently to develop hands-on SysAdmin proficiency. • Deployed Node.js applications with Stripe integration on AWS EC2 (Ubuntu), configuring Elastic IPs, SSH access, security group rules, and environment variable secret management. • Provisioned AWS infrastructure using modular Terraform configurations with reusable provider, variables, and outputs files — applying Git best practices including cleaned history and .gitignore enforcement. • Configured passwordless SSH between EC2 control and target nodes; developed Ansible inventories and playbooks to automate Nginx installation and service management. • Built an end-to-end CI/CD pipeline for automated Nginx deployment on AWS EC2 using GitHub Actions and Docker — including SSH key authentication, GitHub Actions secret management, and Docker restart policies for high availability.

• Built and managed multi-machine Linux environments using VMware, simulating production-like infrastructure across local hosts and virtual machines. • Installed and administered CentOS Linux (minimal) systems — handling network configuration, IP validation, and inter-host connectivity testing. • Deployed and configured MySQL databases on Linux servers with secure remote access and SSH administration. • Dockerized a two-tier web application, creating Dockerfiles and docker-compose configurations for local development and testing. • Provisioned AWS EC2 instances within private networking contexts to support infrastructure experiments and connectivity testing. • Documented technical findings, limitations, and implementation challenges to support team decision-making and knowledge sharing.

- Serviced 10,000+ devices over 11 years across desktops, laptops, and mobile platforms, demonstrating high-volume, cross-platform technical expertise. - Communicated repair findings and device recommendations directly to customers, translating technical diagnoses into clear, accessible language. - Installed, configured, and maintained operating systems and enterprise applications across Windows and Linux environments. - Managed full mobile device lifecycle including MDM enrollment and firmware management. - Performed hardware diagnostics and component-level repairs — covering motherboards, ports, ICs, LCD screens, and peripherals. - Maintained device inventories and repair logs to keep IT operations organized and efficient.

* Collaborated with a cross-functional marketing team to develop and execute a comprehensive school recruitment strategy for a free English-language tutoring program. * Participated in brainstorming sessions to identify target schools and craft interesting outreach messages. * Assisted in the development of marketing materials, including presentations, and templates, to effectively communicate the program's value proposition to potential partner schools. * Coordinated with team members to schedule and conduct school visits and presentations, showcasing the program's benefits and addressing questions or concerns. * Managed the registration process for participating schools, ensuring accurate and timely data entry and follow-up communication.