Devin Callahan
Results-driven IT Technician with one year of hands-on experience in delivering exceptional technical support, system maintenance, and hardware repair in retail and corporate training environments. Combines self-taught IT expertise with a strong focus on problem-solving, customer engagement, and quality assurance to effectively reduce downtime, enhance system reliability, and increase end-user satisfaction. Demonstrates the ability to translate at-home training into tangible improvements through well-documented processes and cross-department coaching. Actively seeks opportunities to streamline support operations and minimize mean time to repair, ensuring optimal performance and user experience.
Work History
Assistant Meat Department Manager
4 Years 2 Months- Led cross-department training sessions to raise staff proficiency and deliver measurable store performance improvements.
- Delivered tailored customer service and meat selection guidance that increased repeat purchases and customer satisfaction.
- Maintained sanitized work area and enforced food safety protocols to ensure regulatory compliance and reduce contamination risk.
Perishables Representative
1 Year 8 Months- Stocked and rotated perishable inventory to maintain freshness and reduce spoilage, producing measurable improvements in product quality.
- Built and executed store display layouts to meet district plans and increase visual compliance and sales impact.
- Prioritized customer assistance over routine tasks to improve service responsiveness and boost customer satisfaction.
- Volunteered for extra holiday shifts to support staffing needs and maintain store operations during peak periods, ensuring consistent service delivery.
Corporate Trainer
3 Years 2 Months- Designed and delivered interactive training sessions that boosted learner retention and completion rates with measurable results.
- Led cross-functional training programs and developed full curriculum, exams, and materials for internal and external clients.
- Monitored trainee performance and provided targeted feedback to managers to close skill gaps and improve team capability.
- Authored standardized training manuals and modules that improved onboarding consistency and reduced ramp time.
Education
High School Diploma
Skills
Certification
CompTIA A+
Issued April 2026 - Expires April 2029
- Hardware: PC assembly, RAM, storage devices, printers, peripherals
- Operating Systems: Windows 10/11, Linux (Bash, systemd, CLI utilities), macOS
- Networking: SOHO networking, IP addressing (IPv4/IPv6), subnetting, DNS, DHCP, wireless security
- Security: Malware mitigation, firewall configuration, user permission management, system hardening, authentication protocols.
- IT Support: Troubleshooting, ticket documentation, issue resolution, customer support
Microsoft Azure Fundamentals
Issued May 2026 - Does not expire
- Core Concepts: Cloud service models (IaaS, PaaS, SaaS) and deployment strategies (Public, Private, Hybrid)
- Azure Services: Virtual Machines, Storage Accounts, VNets, and load balancing configurations.
- Security & Identity: Microsoft Entra ID (formerly Azure AD), Role-Based Access Control (RBAC), and multi-factor authentication (MFA)
- Governance: Resource tagging, cost management, Azure Policy, and resource monitoring