You're seeing this page as if you were . The main menu is still yours, though. Exit from immersion
Rajesh NadarRN

Rajesh Nadar

Network Infrastructure and System Administrator

€200/day
München, DE
15+ years

Average response time: 1 hour

About Rajesh

I specialize in infrastructure management, server configuration, security auditing, and vendor coordination. I've held leadership roles at Matix Fertilisers and Dorf Ketal Chemicals, where I successfully delivered enterprise-level solutions and ensured seamless operations.

I have strong expertise in maintaining network security through antivirus management, spam filtering, updates, and web filtering. My skills include administering Active Directory, Microsoft Exchange, and Skype accounts, as well as troubleshooting LAN, WAN, intranet, and internet systems. I actively support infrastructure projects, disaster recovery planning, and documentation of IT processes. With a Bachelor’s degree in Computer Science, I bring excellent problem-solving, organizational, and communication skills to every role.

My technical skills include Office 365 administration, S2D Cluster, SonicWALL, Fortinet, Cisco ASA, Sophos/Checkpoint Email Security, Azure Security, Linux/Windows, and WLAN technologies. I’ve also contributed to ISO 27001, CMMI Level 4 & 5, and PCI DSS audits.

Thank You
  • English

    Native or bilingual

  • Hindi

    Fluent

  • Tamil

    Basic

Can work on-site
München (up to 50km)

Experience

  • Company - Dorf Ketal Chemicals Ltd):
    Network Infrastructure and System Administrator
    December 2018 - September 2025 (6 years and 9 months)
    Setup of new office infrastructure. Designed and implemented the entire network architecture, including LAN/WAN, firewall configurations, VPN setup, and secure wireless access, ensuring operational readiness within tight deadlines. Ensured compliance with global IT security and data protection standards during setup and configuration. Coordinated with local vendors and international teams for procurement, installation, and testing of IT equipment
  • Xoriant Solutions Pvt Ltd.)
    Network Infrastructure and System Administrator
    February 2015 - December 2018 (3 years and 10 months)
    Managed the IT infrastructure at the US office, including servers, networks, storage, and end-user systems. Ensures high availability, performance, and security of IT systems. Supports infrastructure projects, enforces compliance with company policies and US regulations, and coordinates with all OEMs and vendors
  • Infomedia Network18 Ltd,
    System administrator
    June 2004 - December 2013 (9 years and 6 months)
    India
    • Vital role in managing the LAN/WAN network-related functions of infrastructure/cloud, including Routing, Security, Load balancing, IP Address Management, and implementing connectivity solutions for a hybrid Cloud environment . Enforced monitoring tools and provided feedback to enhance the proactive/predictive enterprise monitoring systems
    • Handled the Firewall/Network Security by designing, implementing, & maintaining site-to-site IPSEC VPN connections (data center & clients); performing security auditing for perimeter routers, and identifying missing ACLs
    ◦ Involved in the Cloud & Virtualization process like design & implementation of Azure infrastructures, service migrations, Azure AD & Exchange integrations, Office 365 Administration & Integration (Microsoft Exchange), ADFS & Single sign-on with LDAP integrations, and troubleshooting
    • Managed the Data Center Edition, GPO, DNS, DHCP, website (IIS web server), LYNC 2013 Server, etc. Analysed the company requirements and designed an Active Directory infrastructure by employing forest/domain/OU architecture and inter-site replication topologies

Recommendations

Be the first to recommend Rajesh

Help this freelancer shine by sharing your experience working together.

These freelancer profiles also match your criteria

AgathaA

Agatha Frydrych

Backend Java Software Engineer

4.7

(3)

2

BaptisteB

Baptiste Duhen

Fullstack developer

4.6

(4)

5

AmedA

Amed Hamou

Senior Lead Developer

4

(2)

7

AudreyA

Audrey Champion

Web developer

4.3

(3)

4

Education

  • Bachelor Of Science
    Pune University
    2002
    Bachelor Of Science

Skill set

Categories