Senior Network Engineer

HCL Technologies Limited; Województwo mazowieckie; On-site; PLN 70,000 - 110,000; Full time

Job summary

HCLTech is seeking seasoned network professionals to manage and optimize enterprise network services from Warsaw. You will perform proactive health reviews, implement enhanced monitoring, and lead incident response with clear RCA and corrective actions.

The role requires CCNP/CCSE/CCP-N certification or equivalent expertise in routing, switching, WAN/SD-WAN, and cloud networking, with hands-on scripting in Python/Ansible. Collaboration with vendors and mentoring of junior engineers are key.

Qualifications

• CCNP/CCSE/CCP-N certification is required or highly preferred.
• Extensive hands-on experience with routing, switching, WAN/SD-WAN and cloud networking.
• Strong RCA capabilities and advanced troubleshooting skills.

Responsibilities

• Perform daily health reviews across all in-scope network services and record findings, risks and preventive actions.
• Enhance monitoring for user-facing services, focusing on Wi-Fi, VPN, and branch connectivity.
• Lead high-priority incident response end to end with diagnostics, restoration, and RCA.
• Provide diagnostic tooling, runbooks, and reliable data for incident handling.
• Deliver contractual scope with traceable evidence of activity and coverage.
• Maintain Warsaw-based capacity and mentor L1 engineers in India.

Skills

Routing & Switching

Network security

WAN/SD-WAN

Cloud networking

Load balancing

Troubleshooting

Root cause analysis

Automation & scripting

Python

Ansible

APIs

Incident management

Mentoring

Communication

Education

CCNP / CCSE / CCP-N certified

Tools

Cisco

Arista

Citrix

CheckPoint

Job description

HCLTech is a global technology company, home to more than 227,000 people across 60 countries, delivering industry-leading capabilities centered around AI, digital, engineering, cloud and software, powered by a broad portfolio of technology services and products.

We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology & Services, Semiconductor, Telecom and Media, Retail and CPG, Mobility and Public Services. Consolidated revenues as of 12 months ending March 2026 totaled $14.7B

We are looking to connect with experienced network professionals who enjoy solving complex challenges, driving service excellence, and supporting enterprise environments where reliability and performance truly matter.

If you are passionate about networking technologies and want to contribute to transformational programs for leading international organizations, we would welcome the opportunity to connect.

Responsibilities

• Perform proactive daily health reviews across all in-scope network services using dashboards, alerts, telemetry, logs, capacity data and service trends; record findings, risks and preventive actions.
• Implement enhanced monitoring for user-facing services, with particular attention to Wi-Fi, ISE, VPN, branch connectivity and other services with direct business impact.
• Own high- and critical-priority incident response end to end, including technical leadership, diagnostics, restoration coordination, evidence-based updates, root-cause analysis, known-error management and permanent corrective actions.
• Provide and maintain diagnostic tooling, runbooks and reliable technical data required for effective handling of Business Critical Incidents.
• Deliver the complete contractual scope and maintain a traceable obligation-to-evidence register showing activity completion, service coverage and any approved exceptions.
• Maintain the agreed number of senior engineers, eliminate single points of failure, implement succession and cross-training plans, and ensure sufficient Warsaw-based capacity for proximity delivery.
• Improve change quality through service-impact analysis, peer and technical review, implementation and rollback validation, dependency checks, test evidence, accurate records and post-implementation review where required.
• Maintain holistic understanding of service architecture, dependencies, business criticality, lifecycle, capacity and technology roadmaps across the full Network Service environment.
• Maintain demonstrable technical capability in ISE, Wi-Fi, VPN, monitoring and other critical platforms, supported by a current skills matrix, development plans and named subject-matter backups.
• Identify, prioritize and deliver automation opportunities, including scripts and workflow automation that reduce manual effort, error rates and restoration time.
• Maintain forward-looking capacity, lifecycle, resilience and technology plans, and proactively propose improvements before risks affect service.

Required Technical Skills and Capabilities

• At least CCNP or CCSE or CCP-N certified
• Deep quality oriented technical expertise in routing, switching, network security, load balancing, WAN/SD-WAN, and cloud networking.
• Advanced troubleshooting and root cause analysis (RCA) capabilities.
• Ability to resolve complex incidents without relying on predefined procedures.
• Proactivity and ownership of critical incidents (P1/BCI) and technical leadership during outage bridges.
• Strong understanding of network architecture and end-to-end service dependencies.
• Experience with automation and scripting, including Python, Ansible, and APIs.
• Ability to assess change risk and design effective rollback and testing strategies.
• Effective collaboration with technology vendors, including Cisco, Arista, Citrix, CheckPoint, and other relevant suppliers.
• Creation and maintenance of technical documentation, runbooks, and knowledge articles.
• Training and mentoring L1 engineers in India and driving continuous service improvements.
• Strong communication skills, particularly the ability to explain technical issues clearly to management and non-technical stakeholders.
• Following completion of the onboarding period, in additional to standard on-call duty delivered by SMEs from EDC, HCL consultants in Warsaw could be requested to participate in the technical escalation on-call duty roster where required or decided, in accordance with the agreed operating model and applicable service requirements.

Scope of Services

• Local Area Network Service
• WAN Service
• External WAN and Connectivity Module Service
• Data Center Network Service
• Load Balancer Platform Service
• WDM Platform Service
• Network Security Services
• Console and Out-of-Band Service
• Network TAP Service
• Wi-Fi Service
• Remote Access Service
• Network AAA Service
• IP Address Management Service
• Network Automation Service
• TEKNET headquarters infrastructure network
• Public Cloud Network Services

Why Us?

• We are investing in your growth, offering learning and career development opportunities at every level to help you find your spark;
• We offer a virtual-first work environment, promoting a good work-life balance and real flexibility;
• Our company is extremely diverse with representation of 165 nationalities;
• We offer the opportunity to work with colleagues across the globe;
• We offer comprehensive benefits for all employees;
• We are a certified great place to work and a top employer in 25 countries, offering a positive work environment that values employee recognition and respect.

Please note that we will contact only those candidates who are selected for further consideration.