About Aleksei
CCIE Enterprise Infrastructure (RS) #51147 (Active) Senior Network Engineer with 17+ years of hands-on expertise in
enterprise routing, switching, security, SD-WAN, and network automation. Deep specialization in Cisco ISE
(802.1X/MAB/Profiling/TrustSec/pxGrid/TACACS+), Fortinet firewalls, VXLAN/BGP-EVPN fabrics, and Python/Ansible
automation scripting. Delivered high-impact projects including firewall optimization (reduced licenses/rules), zero-trust
enforcement via ISE and micro-segmentation, automation of routine operations, and seamless zero-downtime
migrations. Proven full project lifecycle ownership (requirements → design → BoM →
implementation) and 24/7 L3
support in complex multi-vendor environments.
English
Fluent
French
Conversational
Russian
Native or bilingual
Can work on-site
Wavre (up to 50km), Brussels (up to 50km), Liège (up to 50km), Ghent (up to 50km), Antwerp (up to 50km)
Experience
- AKRB SolutionsFreelance Senior Network Engineer (Remote) & Professional DevelopmentNovember 2025 - Today (7 months)
- Performed hands-on network modernization projects, including design and configuration of VXLAN fabrics on H3C switches, core network upgrades, and full hardware refresh.
- Successfully obtained Microsoft AZ-700 Azure Network Engineer Associate certification through intensive self-study and hands-on laboratory practice.
- Successfully passed HashiCorp Certified: Terraform Associate (004) exam.
- Developed and published a production-ready Terraform IaC project for Azure Hub-and-Spoke networking architecture:🔗 * Actively studying Azure DevOps Pipelines with focus on CI/CD automation for network infrastructure and IaC deployments.
- Advanced French language proficiency from A1 to B1/B2 level (validated by multiple standardized tests) with ongoing progress toward C1 fluency.
- NLMK Europe (Freelance)Senior Network EngineerFebruary 2022 - November 2025 (3 years and 9 months)La Louvière, HT, BelgiumContributing to a team responsible for the day-to-day operation and monitoring of the Networks and project delivery Maintain and optimize network infrastructure to ensure high availability and performance Configure, troubleshoot, and support routers, switches, firewalls, and VPNs Setup and maintenance of production network infrastructure, as well as contributing to the configuration of network devices related to project delivery Mostly focus on implementing and support routing and security projects: VeloCloud SD-WAN, Cisco ISE, Fortigates, Cisco ASA and WatchGuard firewalls, NetScaler (Citrix ADC), remote access, routing and switching, Wi-Fi.Delivered projects:1 . Optimization of the number of firewalls and reduction of license quantities2. Identification and resolution of firewall performance issues3. Preparation and implementation of remote access with multi-factor authentication, RDSH farm, high availability, and load balancing, including analysis and optimization of access policies. Seamless transition of users to the new remote access system.4. Development, testing, and implementation of secure access based on Cisco ISE for Aruba switches and 3500,9800 WLCs. Also implemented TACACS+ for network equipment5.Automated guest Wi-Fi account lifecycle using Python + Cisco ISE API6. Design, implementation, and maintenance of Fortinet firewalls. Application of policies in coordination with the Security team7. Designed BGP-EVPN VXLAN fabric (L2VNI, L3VNI, VRF) – ready for deployment8. Enforced network micro-segmentation9. Designed and deployed FortiManager integration with Cisco ISE via pxGrid for real-time SGT (Security Group Tag) propagation. 10. Provision of 24/7 L2/L3 customer support
- InmantaNetwork Automation EngineerSeptember 2020 - February 2022 (1 year and 5 months)Leuven, BelgiumAnalyzing, reviewing and evaluating customer requirements. Designing and implementing network automation solutions using Inmanta Service Orchestrator based on ISP's specifications (MPLS, L2VPN, L3VPN, EVPN) . Implementing custom-tailored integrations with 3rd party technologies and platforms. Conducting POCs for customers.
Recommendations
These freelancer profiles also match your criteria
Agatha Frydrych
Backend Java Software Engineer
4.7
(3)
2
Baptiste Duhen
Fullstack developer
4.6
(4)
5
Amed Hamou
Senior Lead Developer
4
(2)
7
Audrey Champion
Web developer
4.3
(3)
4
Education
- Master's Degree in Computer systems and networksPeter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia2011
- Master's Degree in RadiophysicsPeter the Great St. Petersburg Polytechnic University, St. Petersburg, Russia2010
Certifications
- CCIE Enterprise Infrastructure #51147Cisco2016
- AZ-700: Azure Network Engineer AssociateMicrosoft2026