Senior Network Specialist Job at Randstad (Istanbul)

Senior Network Specialist

We are seeking an experienced network professional to provide second-line techni...

Location

India , Bangalore

Salary:

Not provided

Vodafone

Expiration Date

Until further notice

Requirements

An experienced telecommunications professional with at least five years’ experience in fixed network technologies
A subject matter expert in optical and transmission networks, with strong analytical and problem-solving capability
Self-motivated, with the ability to independently identify, own, and resolve technical and process-related challenges
Customer-focused, with a proven track record of delivering high-quality service in complex operational environments
Comfortable working in an international context, particularly supporting UK and European stakeholders, with strong written and verbal communication skills

Job Responsibility

Provide second-line technical support for SDH and Optical transmission services
Proactively and reactively manage faults, performing advanced troubleshooting and service restoration
Take ownership of complex technical escalations and lead resolution activities during high-impact incidents
Engage directly with internal teams, customers, and suppliers during incident management and service reviews
Identify and deliver opportunities for automation and continuous improvement of knowledge bases and operational processes
Act as a subject matter expert, sharing best practices and technical knowledge across the wider technical community

What we offer

Exposure to complex, high-impact enterprise network environments within Vodafone UK operations
Opportunities to influence service quality, customer experience, and operational best practices
Collaboration with diverse, international stakeholders across technology, operations, and suppliers
A role that values technical expertise, ownership, and continuous improvement

Senior Network Specialist

Location

Poland

Salary:

Not provided

Devire

Expiration Date

Until further notice

Requirements

Minimum 5 years of experience in network administration within distributed, multi-site environments (retail preferred)
Expert-level knowledge of Fortinet solutions (FortiGate, FortiManager, FortiAnalyzer)
Strong hands-on experience with Azure Networking (VNet, peering, site-to-site VPN, vWAN)
Solid understanding of routing protocols (BGP, OSPF) and VLAN configuration
Basic working knowledge of Microsoft Cloud environments (Entra ID, Azure IaaS) to support cross-team operations
Fluency in English
Strong sense of ownership and responsibility for critical infrastructure
Problem-solving mindset with the ability to diagnose complex distributed network issues

Job Responsibility

Designing, implementing, and maintaining the company-wide SD-WAN network based on Fortinet solutions across retail stores and headquarters
Managing Azure networking components, including Virtual Networks, VPN Gateways, ExpressRoute, and Network Security Groups to ensure secure hybrid connectivity
Configuring, maintaining, and troubleshooting FortiGate firewalls, switches, and access points, including security policies and firmware updates
Monitoring network performance and security logs, proactively identifying and resolving bottlenecks and threats
Acting as a 3rd line (L3) escalation point for critical network incidents
Mentoring and supporting the Junior Infrastructure Specialist (L2) in daily network operations
Cooperating closely with the Senior Cloud Specialist to ensure seamless integration between network and cloud layers
Providing operational backup for cloud-related tasks during absences (basic Azure administration, VM management)
Creating and maintaining network documentation, topology diagrams, and standards
Managing ISP vendors and coordinating connectivity rollouts for new retail locations

What we offer

Subsidy for subscription-based employee benefits
Preferential terms for joining the Medicover Sport / MultiSport sports package, the group insurance plan from NN Group, and medical care from Lux Med
Access to a cafeteria benefits platform

Transport Network Senior Specialist

At Vodafone, we’re not just shaping the future of connectivity for our customers...

Location

Türkiye , Kayseri

Salary:

Not provided

Vodafone

Expiration Date

Until further notice

Requirements

Degree qualified in Electronics / Telecommunications / Electrical / Computer Engineering
Strong planning & organizing skills
Strong prioritisation skills
Fluent English
Strong knowledge of IP/MPLS, MW, technologies
Experience on Transport Planning tool and NMS
Atoll for MW
Mapinfo, REDEYE for GIS
NCE for Huawei, NFMP for Nokia Transport NMS systems
Strong Knowledge in Routing Protocols (OSPF, IS-IS, RSVP-TE, LDP, L2VPN, L3VPN, BGP etc.)

Job Responsibility

Preparing E2E Transport plans of 2G/3G/4G and Enterprise customer demands i.e: Red RL/Red Fiber
Backhaul Link capacity planning and MW frequency planning for the optimum traffic management
Keep the regional transport plans up-to-date
Continuous Transport Network optimization for operational efficiency especially for OPEX saving, Availability &Redundancy, Capacity Management
Follow up any regional rollout progress and to ensure effective coordination between Central Planning, NOC and BÇO Teams
Prepare periodically transport network report to figure out the faults and follow up Transport KPIs and keep them over defined SLA levels
Analysis of any incident related Acces Transport network and provide necessary solution methods and follow the completion of action plan with NOC and BÇO teams
Supporting Central Planning Project
To analysis of Sales team enterprise customer demands and manage RED VPN service activation

What we offer

Vflexy: Flexible Benefits Program
Hybrid working kit
Ergonomic kit allowance
Digital meal voucher
Flexible transportation allowance
Employee assistance hotline & counselling
Comprehensive and flexible private health insurance
Discounted price deals for wide range of products & services

Fulltime

Senior Network Specialist - Transmission Operations

We are seeking a Senior Network Specialist to provide second-line support for Tr...

Location

India , Bangalore

Salary:

Not provided

Vodafone

Expiration Date

Until further notice

Requirements

5–8 years of network operations experience, preferably in a Network Operations Centre
Skilled in PDH, SDH and EoSDH transmission technologies
Hands‑on knowledge of Nortel (TN1C, 1X, 4XE & 16Xe) and Marconi (OMS840, 846 & OM16XX) multiplexers
Comfortable working with multiple third‑party providers and global infrastructure environments
Strong in analytical thinking, problem‑solving, and decision‑making within high‑pressure scenarios
An inclusive communicator, capable of engaging effectively with technical and non‑technical stakeholders
Adaptable to international working environments, particularly UK and European operations
Familiar with ITIL principles and telecom tools such as Remedy, Cramer and BT platforms

Job Responsibility

Monitor and prioritise fault tickets received from the first-line team, ensuring consistent progress and timely closure
Perform second-level diagnostics across Transmission technologies, ensuring each issue progresses towards effective resolution
Liaise with customers, internal teams, third-party providers, and external agencies to support testing and troubleshooting
Manage reactive incidents and escalate to the third-line team when required
Ensure adherence to SLAs, quality procedures, and operational processes
Act as the primary contact for the shift team, managing volumes, assigning incidents, and offering clear plans of action
Serve as a subject matter expert for tools and technologies, supporting complex tasks within the team
Conduct training initiatives to close knowledge gaps and strengthen operational capability
Work within a 24/7 rotational shift environment to provide continuous support

What we offer

Opportunities to work with advanced Transmission technologies and global telecom systems
Exposure to international stakeholders and complex network environments
A collaborative and supportive operational environment where continuous learning is encouraged
The chance to grow into deeper technical expertise or leadership roles

Fulltime

Manager-Senior Network Specialist

We are seeking a highly skilled Senior Network Specialist to provide 3rd Line su...

Location

India , Pune; Bangalore

Salary:

Not provided

Vodafone

Expiration Date

Until further notice

Requirements

Minimum of 6 years’ experience in telecommunications or IP networking environments
Strong analytical skills with a structured approach to solving complex technical issues
Proven experience managing high‑severity incidents and working under pressure
Ability to work independently, managing priorities with minimal supervision
Excellent communication skills (written and verbal), with the ability to engage confidently with customers, suppliers and internal teams
In‑depth understanding of TCP/IP, routing, switching, QoS and MPLS VPN technologies
Hands-on experience with at least two of the following: Familiarity with ITIL processes and service assurance frameworks
Strong documentation skills and experience with tools such as Remedy, Cramer and relevant service provider platforms
Ability to work during high-demand periods and manage multiple operational demands
Strong team collaboration and empathy-driven communication style

Job Responsibility

Deliver 3rd Line support for complex LAN and WAN problem tickets, including real-time troubleshooting and service restoration
Provide last-level technical support prior to escalation to vendor TAC teams such as Cisco, Nokia, Juniper and Adva
Collaborate closely with Customer Services, Problem Managers, CSOC, INOC, and other Vodafone technical teams
Ensure all escalations adhere to product and customer guidelines
Support 24x7 technical on-call responsibilities on a rotational basis
Act as a technical escalation point for Problem Managers and, where needed, for 2nd Line teams
Troubleshoot MPLS VPN technologies including L3 VPN, pseudowires, VPLS and related services across Cisco GSR, ASR, Alcatel/Nokia 7750 SR and other platforms
Conduct root cause analysis for complex incidents and escalated faults
Provide input on software, security vulnerabilities and lifecycle management for routers, switches, and network devices
Contribute to improving technology reliability, service availability and operational processes

What we offer

Opportunities to work with cutting-edge technologies across multi-vendor environments
Exposure to global telecom operations and cross-functional collaboration
Skill enhancement through real-time complex incident handling
Professional growth in a highly technical, service‑critical environment
A collaborative workplace where continuous improvement and innovation are encouraged

Network Security Senior Specialist

Location

India , Bangalore

Salary:

Not provided

NTT DATA

Expiration Date

Until further notice

Requirements

Strong hands-on with Aruba CX / ProCurve switches
Good knowledge of Layer 2 & Layer 3 networking
Experience with network monitoring and troubleshooting tools
Bachelor's degree in computer science, Information Technology or related fields (Recommended)

Job Responsibility

Configure and manage Aruba switches (CX/ProCurve)
Implement VLANs, STP, LACP, routing (OSPF, static)
Perform switch upgrades, patching, and maintenance
Troubleshoot L2/L3 network issues
Ensure high availability and redundancy in LAN design

Network Security Senior Specialist

We are currently seeking a Network Security Senior Specialist to join our team i...

Location

India , Bangalore

Salary:

Not provided

NTT DATA

Expiration Date

Until further notice

Requirements

Strong hands-on with Aruba CX / ProCurve switches
Good knowledge of Layer 2 & Layer 3 networking
Experience with network monitoring and troubleshooting tools
Bachelor's degree (Recommended) in computer science, Information Technology or related fields

Job Responsibility

Configure and manage Aruba switches (CX/ProCurve)
Implement VLANs, STP, LACP, routing (OSPF, static)
Perform switch upgrades, patching, and maintenance
Troubleshoot L2/L3 network issues
Ensure high availability and redundancy in LAN design

Fulltime

Network Security Senior Specialist Advisor

The Network Security Senior Specialist Advisor will engage in daily maintenance ...

Location

India , Noida

Salary:

Not provided

NTT DATA

Expiration Date

Until further notice

Requirements

At least 12 years of experience in network security administration
Hands on experience with Palo Alto, Prisma, Fortinet
Strong troubleshooting skills around Palo Alto Firewalls
Expert knowledge on Palo Alto url filtering, Vulnerability protection, AV, Anti-spyware profiles
Strong knowledge on App-id, use of app filters
Expert in troubleshooting issues with packet captures, debugs on Pal Alto and Fortinet FW
Solid understanding of the template/stack architecture
Highly experience architect with proven knowledge on products likes Firewalls (Palo Alto), F5, Prisma SASE, EIGRP, OSPF, BGP and switching technologies
Understanding the integration with authentication protocols such as LDAP, IWA, IWA-direct, SSO, Active directory
At least 2 mid-level certification in Network security from any of the vendors like Cisco, Palo Alto

Job Responsibility

Engage in daily maintenance and operations of Firewall and Prisma products
Work on Requests, Changes, Incidents and Problem records to support customers’ network security environment
Implement Network Security solutions and provide operational support in a customer environment
Provide technical escalation to L2 support engineers
Write custom queries on Palo Alto to fetch reporting data
Provide On-call support for high severity incidents in a 24x7 environment
Ensure that Service Level Agreements and operational standards are met
Perform system maintenance, checkups and maintain current documentation
Provide resolution plans for device issues
Propose service, process, and technical improvements to management

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