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Uğur Pekesen

Network Security Expert

Overview

ISP & Data Center Specialist @Pasifik Holding

Ankara, Türkiye

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About

Hello! I'm Uğur Pekesen, a Network Security Engineer and Systems Architect with deep expertise in Rust, Go, and enterprise networking. I specialize in building ultra-high-performance systems and securing critical network infrastructure handling massive traffic volumes.

As a Network Security Engineer, I've architected and implemented carrier-grade network solutions using Juniper, Cisco, Nokia devices. My experience includes designing and securing networks that handle 400Gbps+ throughput, implementing advanced routing protocols, and managing large-scale MPLS deployments. I've led critical projects including:

  • Designing ISP-grade network architectures supporting millions of concurrent connections
  • Implementing BGP optimizations for multi-homed networks with 10K+ routes
  • Developing custom network automation tools in Rust for real-time traffic analysis
  • Building high-availability solutions with sub-second failover using VRRP and OSPF
  • Securing enterprise networks with advanced threat detection and prevention systems

In systems development, I specialize in Rust and Go for high-performance, mission-critical applications. I've built systems that handle extreme loads:

  • Developed a Rust-based network telemetry system processing 1B+ pps
  • Created a high-frequency trading platform in Go handling microsecond-level latencies
  • Built resilient microservices using Rust that process 200M+ daily transactions
  • Implemented custom protocols and network tools for specialized enterprise requirements
  • Architected real-time data processing pipelines managing 50TB+ daily throughput

My infrastructure expertise centers on OpenStack and cloud-native technologies. Notable achievements include:

  • Designed and deployed an OpenStack cluster managing 1000+ compute nodes
  • Implemented software-defined networking solutions for multi-region deployments
  • Created custom SDN controllers in Rust for automated network provisioning
  • Built next-generation web applications with Next.js handling millions of daily users
  • Developed high-performance monitoring systems with microsecond-level precision

I'm particularly passionate about network optimization and high-performance computing. Recent projects include:

  • Custom Rust-based network analysis tools for 100Gb+ networks
  • Advanced BGP route optimization algorithms for global network infrastructure
  • High-frequency, low-latency trading systems with strict performance requirements
  • Real-time network security systems processing millions of events per second

I regularly contribute to open-source networking tools and performance-critical systems. My focus is on pushing the boundaries of what's possible in network performance and security while maintaining bulletproof reliability.

Let's connect and discuss how we can build high-performance, secure systems together!

Stack

  • TypeScript iconTypeScript
  • JavaScript iconJavaScript
  • Python iconPython
  • PHP iconPHP
  • Rust iconRust
  • Lua iconLua
  • Go iconGo
  • Next.js iconNext.js
  • Laravel iconLaravel
  • Symfony iconSymfony
  • CodeIgniter iconCodeIgniter
  • React & React Native iconReact & React Native
  • TailwindCSS iconTailwindCSS
  • MongoDB iconMongoDB
  • Cassandra iconCassandra
  • InfluxDB iconInfluxDB
  • Citus iconCitus
  • Redis iconRedis
  • Kong iconKong
  • RabbitMQ iconRabbitMQ
  • Kafka iconKafka
  • Elasticsearch iconElasticsearch
  • TensorFlow iconTensorFlow
  • Apache Spark iconApache Spark
  • Docker iconDocker
  • Kubernetes iconKubernetes
  • OpenStack iconOpenStack
  • VMware ESXi iconVMware ESXi
  • Proxmox iconProxmox
  • NGINX iconNGINX
  • Ubuntu iconUbuntu
  • TeamCity iconTeamCity
  • Sentry iconSentry
  • Postman iconPostman
  • APISIX iconAPISIX
  • Envoy iconEnvoy
  • MikroTik iconMikroTik
  • Juniper iconJuniper
  • Cisco iconCisco
  • Nokia iconNokia

Experience

Pasifik Teknoloji

Current Employer
  • Designing, deploying, and maintaining carrier-grade ISP and data center infrastructures for 55+ companies under Pasifik Holding with 400Gbps+ aggregate throughput
  • Managing core and edge routing with BGP, OSPF, and MPLS for multi-homed networks with 10K+ routes and multiple upstream providers
  • Implementing advanced DDoS mitigation and real-time traffic analysis with XDP/eBPF-based Rust tools handling 1B+ packets per second
  • Building and optimizing IX (Internet Exchange) peering strategies to improve latency and transit cost efficiency
  • Orchestrating large-scale virtualization and container environments using Proxmox, Docker, and Kubernetes
  • Deploying redundant, high-availability clusters using VRRP, OSPF, and LACP with sub-second failover
  • Automating network provisioning, monitoring, and alerting with custom-built Rust/Go tools and Prometheus + Grafana stacks
  • Integrating multi-vendor platforms (Juniper, Cisco, Nokia, MikroTik) into unified management pipelines
  • Implementing advanced routing and firewall policies for high-performance traffic engineering and security enforcement
  • ISP Infrastructure
  • Data Center Operations
  • Network Automation
  • Carrier-Grade Networking
  • High Availability
  • Anti DDoS Solutions
  • Traffic Engineering
  • BGP
  • OSPF
  • MPLS
  • IX/Peering
  • Rust
  • Go
  • XDP
  • eBPF
  • Linux Networking
  • Juniper
  • Cisco
  • Nokia
  • MikroTik
  • Kubernetes
  • Proxmox
  • Grafana
  • Prometheus
  • System Optimization
  • Managing and securing network infrastructure for 55+ companies under Pasifik Holding with 400Gbps+ throughput
  • Designing and implementing carrier-grade network solutions using Juniper, Cisco, Nokia, and MikroTik
  • Developing high-performance network automation tools in Rust XDP/eBPF processing 1B+ p/s
  • Building BGP optimizations for multi-homed networks with 10K+ routes
  • Implementing advanced security systems with real-time threat detection
  • Creating high-availability solutions with sub-second failover using VRRP and OSPF
  • Network Security
  • Infrastructure Design
  • Anti DDoS Solutions
  • Network Automation
  • BGP
  • OSPF
  • MPLS
  • Rust
  • XDP
  • eBPF
  • Go
  • High-Performance Computing
  • Juniper
  • Cisco
  • Nokia
  • MikroTik
  • System Optimization

Pyramid

Current Employer
  • Architected and implemented large-scale network infrastructure
  • Led development of high-performance systems
  • Managed virtualization infrastructure with VMware and OpenStack
  • Designed and implemented container orchestration with Kubernetes
  • Developed custom network security solutions
  • Optimized system performance for high-traffic applications
  • TypeScript
  • VMware
  • Virtualization
  • Docker
  • Kubernetes
  • Network Administration
  • System Architecture

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