Access Control Change Management

Peter Kalisa

Toronto, Canada 514-***-**** *********@*****.*** Linkedin.com/in/peterkalisa

Results-driven and analytical professional with 15+ years of experience in ensuring end-to-end availability of infrastructure and services while performing meticulous technical analysis of system issues and outages within enterprise networks. Adept at managing and optimizing resources on cloud platforms, including Google Cloud Platform (GCP) and Amazon Web Services (AWS), to ensure seamless operations and optimal performance. Skilled in configuring robust security measures and access control protocols, consistently adhering to industry best practices.

Core Competencies

●Cloud Management

●Change Management

●Stakeholder Engagement

●Performance Monitoring

●Team Leadership & Development

●Routing and switching

●Cross-functional Collaborations

●Network Troubleshooting

●Client Solution Translation

Cloud Infrastructure Engineering

PROFESSIONAL EXPERIENCE

SITA – Greater Montreal, Canada (Contract) May-2023 – Nov-2023

Specialist Service Operations

Collaborated with cross-functional teams to assess cloud needs and design scalable solutions, resulting in optimized performance and resource utilization.

Orchestrated the management and optimization of GCP and AWS resources to guarantee smooth operations and heightened performance while implementing stringent security measures and access control protocols.

Managed and maintained Linux servers, ensuring high availability and optimal performance for critical applications.

Implemented backup and recovery strategies, reducing data loss incidents by 30%.

Resolved complex technical issues related to Linux systems and provided timely support to end-users.

Deploying and managing Kubernetes clusters for development and testing environments during migration to public cloud adhering to industry best practices.

Implemented API management strategies using APIGEE, contributing to the improved service interconnectivity.

Automated infrastructure provisioning and configuration using tools such as Terraform and Ansible, resulting in a 30% reduction in manual efforts.

Implementing CI/CD pipelines, reducing deployment time by 40% and improving overall release stability.

Automating deployment, scaling, and management of containerized applications using Kubernetes and related tools.

Implemented monitoring, logging, and alerting solutions to ensure the health and performance of Kubernetes clusters.

Implementing security best practices and policies for Kubernetes clusters, ensuring compliance with company standards.

Troubleshooted and resolved issues related to Kubernetes infrastructure, containers, networking, and performance.

Work with daily incidents, requests, task assigned.

Evaluate and review change that needs to implement to Production or Nonproduction environment.

Implemented security measures and compliance controls, leading to enhanced data security and regulatory compliance.

Monitored cloud resources, identified and resolved performance issues, and optimized cost-efficiency through resource right-sizing.

Highlights

Cloud services like GCP, AWS and Azure

ServiceNow

MTN Telecom – Kigali Rwanda Feb 2021 – April 2023

Core Network Manager

Provide L2 support for high priority ticket, guide and supervise team members as needed. •

Install, maintain and upgrade all hardware, firmware and software on Cisco routers and switches

Assisted in the deployment of Cisco technologies, including router and switch configurations, VLAN setups, and routing protocols.

Implemented API management strategies using APIGEE, contributing to the improved service interconnectivity.

Managed and maintained Linux servers, ensuring high availability and optimal performance for critical applications.

Resolved complex technical issues related to Linux systems and provided timely support to end-users.

Implemented backup and recovery strategies, reducing data loss incidents by 30%.

Conducted network monitoring and analysis using Cisco tools Wireshark to troubleshoot and optimize performance.

Contributed to the development of network documentation and standard operating procedures.

Apply patches or perform minor upgrade on all software used on Network systems.

Implementing CI/CD pipelines, reducing deployment time by 40% and improving overall release stability.

Provide technical support and advice on all hardware and software used in the operating environment;

Change or fine tune network or system parameters; Configuration of firewall rules, VPN profiles, etc;

Document and maintain configurations of all hardware and software used in the operating environment to the satisfactory of the Customer; Manage IP addresses.

Create/maintain system/user accounts and assign appropriate access rights;

Perform regular housekeeping of directories and files, routine backup of configuration;

Perform network and component recovery; Perform trouble-shooting and resolve network problems;

Analyze network utilization pattern and/or problems, recommend and implement corrective and/or preventive measures to prevent or resolve at root cause level;

Recommend new/improved hardware, software, configurations, to enhance the existing system performance and management;

Highlights;

Successfully implemented MPLS between airtel Main data center and regional data enters.

Installing new cisco routers and Switches in the network.

Cisco ASA Firewall Configuration

Airtel Rwanda – Kigali Rwanda Sept 2015 – Jan 2021

Senior CS core Engineer

Designed, implemented, and maintained Cisco-based network infrastructure ensuring high availability and reliability.

Configured and managed Cisco Catalyst switches and ISR/ASR routers, optimizing network performance and security.

Conducted routine network audits, identifying vulnerabilities and implementing corrective measures to enhance security posture.

Collaborated with cross-functional teams for network expansion projects, resulting in 40% increase in capacity.

Resolved complex network issues promptly, minimizing downtime and enhancing productivity.

●Engineered and implemented automation solutions across Network Operations, leveraging a blend of in-house and open-source development tools which resulted in a transformative 30% increase in operational efficiency.

●Conducted data-driven analysis to identify new automation opportunities, contributing to the ongoing enhancement of operational processes.

●Document new and existing Detailed Design based from proposed design and existing network infrastructure.

●Coordinate with client during kick-off meeting to provide the current requirements and meet the company standard design for the new and existing equipment including WAN link commissioning, Datacenter readiness, Cabling, Power Supply and Onsite Support.

●Prepare router, switch and wireless configuration base from baseline standard design.

●Prepare Proof of Concept base from the client network design and configuration for testing purposes.

• Remotely Configure and setup network switch, routers and wireless according to the standard base line configuration

Highlights;

Successfully implemented MPLS between airtel Main data center and regional data enters.

Installing new cisco routers and Switches in the network.

Cisco ASA Firewall Configuration

MTN Rwanda – Kigali, Rwanda Jan 2011 – Sept 2015

Network switching system Engineer (2011 – 2015)

●Orchestrated the seamless preparation, implementation, and maintenance of connectivity to Public Switched Telephone Network (PSTN) networks and partner operators.

●Steered the successful implementation of roaming data and roaming links, demonstrating proficiency in coordinating with third-party partners to optimize network connectivity.

●Achieved notable success in implementing Congestion Measurement strategies, contributing to enhanced operational efficiency and network performance.

●Assisted in the deployment of Cisco technologies, including router and switch configurations, VLAN setups, and routing protocols.

●Conducted network monitoring and analysis using Cisco tools Wireshark to troubleshoot and optimize performance.

●Contributed to the development of network documentation and standard operating procedures.

NOC Engineer April 2008 – Jan 2011

●Pioneered continuous monitoring and maintenance initiatives for core switches, displaying a proactive approach to ensure uninterrupted network operations.

●Achieved seamless transitions and heightened fault resolution efficiency by diagnosing and clearing faults identified during monitoring, addressing alarms resulting from changes or the implementation of new sites.

●Exhibited precision and timeliness in the creation, updating, and closure of all trouble tickets, fostering a streamlined and organized trouble ticket management system.

●Played an integral role in subscriber database administration and signaling administration, showcasing a comprehensive understanding of critical network components and contributing to the optimization of network performance.

TECHNICAL TOOLS

Industry Expertise:

Cisco Routers, Firewall and Switches

Proven expertise in AWS and GCP

Proficiency in Docker and Kubernetes

Knowledge of cloud security best practices

Jenkins

GitHub

CI/CD pipelines

Technical Skills

Cisco Routers & Switches

VLANs, STP, OSPF, BGP, EIGRP

Cisco ASA Firewall Configuration

WAN/LAN Design and Implementation

Network Security and Monitoring

Troubleshooting and Diagnostics

Network Performance Optimization

Scripting (Python, Bash)

Virtual Private Networks (VPNs)

DevOps Tools: GitHub, Jenkins, Terraform,, Ansible, Maven

Containerization: Docker, Kubernetes

Server Installation and Maintenance

Network Configuration and Optimization

Infrastructure Automation: Infrastructure-as-Code (IaC), OpenStack

Cloud Platforms: Amazon Web Services (AWS), Microsoft Azure

Security: Security best practices, system administration –

System Expertise (Linux, Windows, Virtualization)

SIP, PSTN, VoIP and IPBX, Cisco routers & switches / SIGTRAN/ Telco Cloud, NFV services, openstack,

Migrating workloads from on-prem to the Cloud

EDUCATION & CERTIFICATIONS

MBA in Project Management Oklahoma Christian university

B.Sc. in Engineering University of Rwanda Collage of Science and Technology

Certificates

Google Cloud Certified Associate Engineer

Azure Fundamentals

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