Network security, Network Architecture and Design Network defense policies, Zero trust , Zero knowledge Routing & Switching Java, C+
Aktualisiert am 27.03.2024
Profil
Freiberufler / Selbstständiger
Remote-Arbeit
Verfügbar ab: 27.03.2024
Verfügbar zu: 100%
davon vor Ort: 100%
Routing & Switching
IT Security
Network Access Control
Zero trust
Zero knowledge
Java
C++
Webassembly
Network Architecture
SSO
Oauth2
SRP
SAML
Ansible
Spring Framework
Extreme Networks
Cisco
Huawei
Identity & Access Management
English
fluent
Russian
fluent
German
fluent
Bulgarian
fluent

Einsatzorte

Einsatzorte

Oberursel (Taunus) (+100km)
Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

2 Jahre 2 Monate
2022-05 - heute

Last level technical approval instance for all network changes

Consultant
Consultant
  • Last level technical approval instance for all network changes
  • Running CAB (Change Advisory Board)
  • Interviewing - New Hire
  • Identity & Access Management ? NAC - Cisco ISE
  • Leading Operations, CyberSec and Firewall Teams
  • Zero Trust
Daimler AG, Daimler Truck AG, Mercedes-Benz Group AG
4 Jahre 8 Monate
2019-11 - heute

Network Architecture, Design confirmation

Freelancer Extreme Huawei Cisco
Freelancer

  • Network architecture, Solution design, Design confirmation.

  • Penetration testing, vulnerability scan

  • Datacenter ? Cloud ? Nutanix ? Hyper Converged Solutions, SD-WAN

  • Zero trust networks, Zero knowledge proof

C++17 Java Spring JavaFX Ansible (Python) SSO 802.1x Oauth2 SAML ADFS Kerberos Radius IPv6 Webassembly Extreme NAC Keycloak Cisco ISE PKI
Extreme Huawei Cisco
various customers
4 Monate
2022-01 - 2022-04

NAC Segmentation

Consultant
Consultant
  • NAC Segmentation Concept based Cisco ISE, PKI
  • Cisco ISE, SSO, 802.1x, SAML, Kerberos, Radius, IPv6
DB Systel GmbH
2 Jahre 4 Monate
2019-09 - 2021-12

BBIP Netz Project

Consultant
Consultant
  • Anible, MPLS / VPLS, Traffic generation, IPv6 - BBIP Netz
  • Huawei, Cisco, Extreme
  • Network architecture, Solution design
  • Penetration testing, vulnerability scan
DB Netz AG
6 Monate
2021-04 - 2021-09

Satellite Media Player

Consultant
Consultant
  • Java Code, OpenJDK, VLCJ, JavaFX, H264, H265, Spring framework
  • Full HD audio and video streams based on multicast over UDP
  • Testing Full-HD autdio and video streams over satellite
Media Broadcast GmbH
1 Monat
2020-09 - 2020-09

CheckMK integration

Consultant
Consultant
  • Datacenter ? Cloud ? Nutanix ? Hyper Converged Solutions, SD-WAN
  • CheckMK integration
Pfalzkom GmbH, Nutanix, Segmenation
8 Jahre 4 Monate
2011-07 - 2019-10

Troubleshooting network problems at all levels

Sr. Escalation Engineer 802.1x Kerberos Oauth2 ...
Sr. Escalation Engineer
  • Troubleshooting network problems at all levels
  • Engineering interface for advanced network designs, hardware and software debugging
  • Screening job candidates. Core team member/BSG reviews
  • Participate in new product design
  • Protocol implementation validation (802.1x, Kerberos, Oauth2, RADIUS, VRRP, HSRP, CARP, OSPF, IS-IS)
  • Software protocol implementations (Java, C++), problem recreations
  • Deciphering network traces and protocol operations
  • Trainer security policies enforcement (ISP / Government)
  • Validation of network security designs and configurations
  • Spring Framework, Spring Security, Hibernate, RabbitMQ
  • Advanced VPN architecture and product development.
802.1x Kerberos Oauth2 RADIUS VRRP HSRP CARP OSPF IS-IS Java C++ webassembly ISP / Government postgresql mysql Routing Switching MPLS VPLS VxLan Fabrics Spring Framework Hibernate RabbitMQ EXOS EOS NAC EMC
Extreme Networks
Frankfurt am Main, Germany
2 Jahre 11 Monate
2011-07 - 2014-05

Providing solution for routing, switches and NAC cases

Product Support Engineer Level 3
Product Support Engineer Level 3
  • Providing solution for routing, switches and NAC cases that Level 1 and Level 2 team could not solve.
  • Presentation for new and advanced network technologies ( Routing, Switching, MPLS, VPLS, VxLan )
  • Database troubleshooting and management ( postgresql, mysql )
  • Discover, reproduce and debugging bugs for ( EXOS, EOS, NAC, EMC ) 
Enterasys Secure Networks
Frankfurt am Main, Germany
3 Jahre 6 Monate
2008-01 - 2011-06

managing aspects of the network

Hub Engineer latency jitter packet loss ...
Hub Engineer
  • VSAT satellite network, managing aspects of the network such as: latency, jitter, packet loss, routing, delay, switching, monitoring, troubleshooting
  • Software developer for infrastructure management project written in C# .Net 4. Used technics such as: Web Services, Shared Libraries, External C++ library usage, Database, Data Binding, MVC based Web Interface, Silverlight, GIT
  • Managed Windows 2003/2007, RedHat, SuSe servers
  • Configure and monitor network build with Cisco L2 and L3
  • Proxy and VPN management
  • Writing custom monitoring software
  • Backup procedures and disaster recovery
  • Procedures for physical installation of a new hardware
  • Customer Layer 3 support
  • Customized spam and virus mail monitoring system
C++ library usage Database Data Binding MVC based Web Interface Silverlight GIT Web Services Shared Libraries External C# Net 4
latency jitter packet loss routing delay switching monitoring troubleshooting
Hughes Network Systems
Griesheim, Germany
8 Monate
2006-09 - 2007-04

Testing and design improvements

Intern Perl Linux RADIUS + VPN server
Intern
  • Perl programming
  • Linux multimedia streaming systems
Perl Linux RADIUS + VPN server
Modulus Video Inc .,(Motorola)
Sunnyvale, CA, USA
6 Monate
2006-03 - 2006-08

SuSe - Yast software development

Intern
Intern
  • Linux programming on Perl, C, XML for IBM Z Series
  • SuSe - Yast software development
  • Channel bonding and load balancing test for the Linux kernel, SuSE and RedHat distributions
  • Web programming
Perl C XML for IBM Z Series
IBM Lab
Böblingen, Germany
9 Monate
2003-12 - 2004-08

Security Threats classification and translation

Research Assistant
Research Assistant

Security Threats classification and translation according to securityfocus.com, secunia.com, frsirt.com, bugtrack.ru 

  • Antivirus plugging supplement, based on heuristic algorithms
  • Malware management, cyber fraud prevention
  • Identity Management, intrusion detection, customers penetration  testing
  • Administer products S-mail and Alfatechnology
ANDEC Ltd. Moscow, Russia
Moscow, Russia

Aus- und Weiterbildung

Aus- und Weiterbildung

2 Jahre 5 Monate
2005-03 - 2007-07

Wirtschaftsinformatik

Master's Degree, Faculty of Informatics, Reutlingen University, Germany
Master's Degree
Faculty of Informatics, Reutlingen University, Germany

  • Business Information Management

  • Master?s thesis: gladly on request

Kompetenzen

Kompetenzen

Top-Skills

Routing & Switching IT Security Network Access Control Zero trust Zero knowledge Java C++ Webassembly Network Architecture SSO Oauth2 SRP SAML Ansible Spring Framework Extreme Networks Cisco Huawei Identity & Access Management

Produkte / Standards / Erfahrungen / Methoden

Objectives

Challenging tasks as part of a dynamic and friendly team with focus on:

  • Network security, Network Architecture and Design

  • Vulnerability management and risk assessment

  • Network defense policies, Zero trust , Zero knowledge ( SRP, J-PAKE )

  • Routing & Switching

  • Programming ( Java or C++ ) using design patterns (The gang of four)


Platforms:

  • Extreme (Architect)

  • Enterasys (Architect)

  • Brocade

  • Avaya

  • Cisco (CCNP)

Design:

  • OOD/OOP

  • UML

Tools: 

  • CDT

  • STS

  • Microsoft Visual Studio

  • Git

  • GCC

  • Clang

  • Emscipten

OS: 

  • Debian

  • RHEL

  • Windows 2X Server

Framework: 

  • JDK

  • .NET 4

  • Spring

  • Hibernate

  • Botan

  • Boost

Protocols: 

  • TCP/IP

  • IGMP, 802.1x (rev. IEEE 2004)

  • Bootp

  • DNS

  • TLS

  • BGP

  • IS-IS

  • OSFP

  • VPLS

  • MPLS

  • SNMP

  • LDAP

  • SSH

  • FTP

  • IPSec

  • SRP

  • AES

  • TLS

  • WSS

  • IMAP

  • SMTP

  • Stomp

  • AMQP

Networking: 

  • L2 and L3

  • LAN

  • WAN

  • WLAN

Programmiersprachen

Java
C++
C#

Einsatzorte

Einsatzorte

Oberursel (Taunus) (+100km)
Deutschland, Schweiz, Österreich
möglich

Projekte

Projekte

2 Jahre 2 Monate
2022-05 - heute

Last level technical approval instance for all network changes

Consultant
Consultant
  • Last level technical approval instance for all network changes
  • Running CAB (Change Advisory Board)
  • Interviewing - New Hire
  • Identity & Access Management ? NAC - Cisco ISE
  • Leading Operations, CyberSec and Firewall Teams
  • Zero Trust
Daimler AG, Daimler Truck AG, Mercedes-Benz Group AG
4 Jahre 8 Monate
2019-11 - heute

Network Architecture, Design confirmation

Freelancer Extreme Huawei Cisco
Freelancer

  • Network architecture, Solution design, Design confirmation.

  • Penetration testing, vulnerability scan

  • Datacenter ? Cloud ? Nutanix ? Hyper Converged Solutions, SD-WAN

  • Zero trust networks, Zero knowledge proof

C++17 Java Spring JavaFX Ansible (Python) SSO 802.1x Oauth2 SAML ADFS Kerberos Radius IPv6 Webassembly Extreme NAC Keycloak Cisco ISE PKI
Extreme Huawei Cisco
various customers
4 Monate
2022-01 - 2022-04

NAC Segmentation

Consultant
Consultant
  • NAC Segmentation Concept based Cisco ISE, PKI
  • Cisco ISE, SSO, 802.1x, SAML, Kerberos, Radius, IPv6
DB Systel GmbH
2 Jahre 4 Monate
2019-09 - 2021-12

BBIP Netz Project

Consultant
Consultant
  • Anible, MPLS / VPLS, Traffic generation, IPv6 - BBIP Netz
  • Huawei, Cisco, Extreme
  • Network architecture, Solution design
  • Penetration testing, vulnerability scan
DB Netz AG
6 Monate
2021-04 - 2021-09

Satellite Media Player

Consultant
Consultant
  • Java Code, OpenJDK, VLCJ, JavaFX, H264, H265, Spring framework
  • Full HD audio and video streams based on multicast over UDP
  • Testing Full-HD autdio and video streams over satellite
Media Broadcast GmbH
1 Monat
2020-09 - 2020-09

CheckMK integration

Consultant
Consultant
  • Datacenter ? Cloud ? Nutanix ? Hyper Converged Solutions, SD-WAN
  • CheckMK integration
Pfalzkom GmbH, Nutanix, Segmenation
8 Jahre 4 Monate
2011-07 - 2019-10

Troubleshooting network problems at all levels

Sr. Escalation Engineer 802.1x Kerberos Oauth2 ...
Sr. Escalation Engineer
  • Troubleshooting network problems at all levels
  • Engineering interface for advanced network designs, hardware and software debugging
  • Screening job candidates. Core team member/BSG reviews
  • Participate in new product design
  • Protocol implementation validation (802.1x, Kerberos, Oauth2, RADIUS, VRRP, HSRP, CARP, OSPF, IS-IS)
  • Software protocol implementations (Java, C++), problem recreations
  • Deciphering network traces and protocol operations
  • Trainer security policies enforcement (ISP / Government)
  • Validation of network security designs and configurations
  • Spring Framework, Spring Security, Hibernate, RabbitMQ
  • Advanced VPN architecture and product development.
802.1x Kerberos Oauth2 RADIUS VRRP HSRP CARP OSPF IS-IS Java C++ webassembly ISP / Government postgresql mysql Routing Switching MPLS VPLS VxLan Fabrics Spring Framework Hibernate RabbitMQ EXOS EOS NAC EMC
Extreme Networks
Frankfurt am Main, Germany
2 Jahre 11 Monate
2011-07 - 2014-05

Providing solution for routing, switches and NAC cases

Product Support Engineer Level 3
Product Support Engineer Level 3
  • Providing solution for routing, switches and NAC cases that Level 1 and Level 2 team could not solve.
  • Presentation for new and advanced network technologies ( Routing, Switching, MPLS, VPLS, VxLan )
  • Database troubleshooting and management ( postgresql, mysql )
  • Discover, reproduce and debugging bugs for ( EXOS, EOS, NAC, EMC ) 
Enterasys Secure Networks
Frankfurt am Main, Germany
3 Jahre 6 Monate
2008-01 - 2011-06

managing aspects of the network

Hub Engineer latency jitter packet loss ...
Hub Engineer
  • VSAT satellite network, managing aspects of the network such as: latency, jitter, packet loss, routing, delay, switching, monitoring, troubleshooting
  • Software developer for infrastructure management project written in C# .Net 4. Used technics such as: Web Services, Shared Libraries, External C++ library usage, Database, Data Binding, MVC based Web Interface, Silverlight, GIT
  • Managed Windows 2003/2007, RedHat, SuSe servers
  • Configure and monitor network build with Cisco L2 and L3
  • Proxy and VPN management
  • Writing custom monitoring software
  • Backup procedures and disaster recovery
  • Procedures for physical installation of a new hardware
  • Customer Layer 3 support
  • Customized spam and virus mail monitoring system
C++ library usage Database Data Binding MVC based Web Interface Silverlight GIT Web Services Shared Libraries External C# Net 4
latency jitter packet loss routing delay switching monitoring troubleshooting
Hughes Network Systems
Griesheim, Germany
8 Monate
2006-09 - 2007-04

Testing and design improvements

Intern Perl Linux RADIUS + VPN server
Intern
  • Perl programming
  • Linux multimedia streaming systems
Perl Linux RADIUS + VPN server
Modulus Video Inc .,(Motorola)
Sunnyvale, CA, USA
6 Monate
2006-03 - 2006-08

SuSe - Yast software development

Intern
Intern
  • Linux programming on Perl, C, XML for IBM Z Series
  • SuSe - Yast software development
  • Channel bonding and load balancing test for the Linux kernel, SuSE and RedHat distributions
  • Web programming
Perl C XML for IBM Z Series
IBM Lab
Böblingen, Germany
9 Monate
2003-12 - 2004-08

Security Threats classification and translation

Research Assistant
Research Assistant

Security Threats classification and translation according to securityfocus.com, secunia.com, frsirt.com, bugtrack.ru 

  • Antivirus plugging supplement, based on heuristic algorithms
  • Malware management, cyber fraud prevention
  • Identity Management, intrusion detection, customers penetration  testing
  • Administer products S-mail and Alfatechnology
ANDEC Ltd. Moscow, Russia
Moscow, Russia

Aus- und Weiterbildung

Aus- und Weiterbildung

2 Jahre 5 Monate
2005-03 - 2007-07

Wirtschaftsinformatik

Master's Degree, Faculty of Informatics, Reutlingen University, Germany
Master's Degree
Faculty of Informatics, Reutlingen University, Germany

  • Business Information Management

  • Master?s thesis: gladly on request

Kompetenzen

Kompetenzen

Top-Skills

Routing & Switching IT Security Network Access Control Zero trust Zero knowledge Java C++ Webassembly Network Architecture SSO Oauth2 SRP SAML Ansible Spring Framework Extreme Networks Cisco Huawei Identity & Access Management

Produkte / Standards / Erfahrungen / Methoden

Objectives

Challenging tasks as part of a dynamic and friendly team with focus on:

  • Network security, Network Architecture and Design

  • Vulnerability management and risk assessment

  • Network defense policies, Zero trust , Zero knowledge ( SRP, J-PAKE )

  • Routing & Switching

  • Programming ( Java or C++ ) using design patterns (The gang of four)


Platforms:

  • Extreme (Architect)

  • Enterasys (Architect)

  • Brocade

  • Avaya

  • Cisco (CCNP)

Design:

  • OOD/OOP

  • UML

Tools: 

  • CDT

  • STS

  • Microsoft Visual Studio

  • Git

  • GCC

  • Clang

  • Emscipten

OS: 

  • Debian

  • RHEL

  • Windows 2X Server

Framework: 

  • JDK

  • .NET 4

  • Spring

  • Hibernate

  • Botan

  • Boost

Protocols: 

  • TCP/IP

  • IGMP, 802.1x (rev. IEEE 2004)

  • Bootp

  • DNS

  • TLS

  • BGP

  • IS-IS

  • OSFP

  • VPLS

  • MPLS

  • SNMP

  • LDAP

  • SSH

  • FTP

  • IPSec

  • SRP

  • AES

  • TLS

  • WSS

  • IMAP

  • SMTP

  • Stomp

  • AMQP

Networking: 

  • L2 and L3

  • LAN

  • WAN

  • WLAN

Programmiersprachen

Java
C++
C#

Vertrauen Sie auf Randstad

Im Bereich Freelancing
Im Bereich Arbeitnehmerüberlassung / Personalvermittlung

Fragen?

Rufen Sie uns an +49 89 500316-300 oder schreiben Sie uns:

Das Freelancer-Portal

Direktester geht's nicht! Ganz einfach Freelancer finden und direkt Kontakt aufnehmen.