Network Engineer L3 Support

RedCore is an international business group that creates technological solutions for digital markets. Our products and services cover fintech, marketing, e-commerce, customer service, communications, and regulatory technologies.
We are looking for a Network Engineer L3 Support!
Requirements:
Strong knowledge of networking fundamentals: TCP/IP, DNS, DHCP, routing, NAT, VLAN, HTTP/HTTPS and network security fundamentals.
Strong hands-on experience with network troubleshooting and root cause analysis across endpoint, LAN/Wi-Fi, VPN, firewall, routing and application connectivity layers.
Deep understanding of remote-access VPN technologies and protocols, including IPSec, SSL VPN, WireGuard and related tunneling technologies.
Hands-on experience administering and troubleshooting NGFW/firewall, VPN, routing and network infrastructure.
Experience with enterprise network equipment and solutions from vendors such as Fortinet, MikroTik and Ubiquiti.
Experience troubleshooting network related issues on Windows and macOS endpoints.
Experience with network monitoring, logging, packet analysis and network diagnostic tools such as Wireshark, tcpdump or equivalent.
Ability to independently troubleshoot complex L3 escalations and perform Root Cause Analysis (RCA).
Understanding of incident management and escalation processes.
Experience maintaining technical documentation, network diagrams and troubleshooting procedures.

Will be plus

Experience with AWS networking: VPC, Route Tables, Security Groups, Transit Gateway, VPN connectivity.
Experience with hybrid connectivity between on-premises and cloud environments.
Understanding of Zero Trust / ZTNA principles.
Experience with Infrastructure as Code and automation: Ansible, Terraform, Python or Bash.
Experience working in a NOC, Network Operations or L3 Support environment.

Responsibilities:
Act as the L3 escalation point for IT Support for complex network-related incidents.
Troubleshoot and resolve issues related to corporate VPN connectivity, internal resource availability, DNS, routing, firewall policies, NAT and network access.
Perform end-to-end troubleshooting from the user endpoint to corporate/internal resources, identifying the root cause across endpoint, LAN/Wi-Fi, VPN, firewall, routing, cloud and application connectivity layers.
Configure and maintain firewall policies, routing, NAT and network access rules.
Investigate recurring network incidents, perform RCA and implement preventive measures.
Collaborate closely with IT Support, System Administration, Information Security and other Infrastructure teams during incident investigation and resolution.
Provide clear technical feedback to IT Support on resolved escalations, including root cause, resolution and recommended troubleshooting steps.
Maintain network diagrams, configurations, troubleshooting procedures, runbooks and internal documentation.
Contribute to the IT Support knowledge base to enable L1/L2 teams to resolve recurring issues without unnecessary L3 escalation.

Our benefits to you:

☘️An exciting and challenging job in a fast-growing business group, the opportunity to be part of a multicultural team of top professionals in Development, Architecture, Management, Operations, Marketing, Legal, Finance, and more
🤝🏻Great working atmosphere with passionate experts and leaders, sharing a friendly culture and a success-driven mindset is guaranteed
🧑🏻‍💻Modern corporate equipment based on macOS or Windows and additional equipment are provided
🏖Paid vacations, sick leave, personal events days, days off
💵Referral program — enjoy cooperation with your colleagues and get the bonus
📚Educational programs: regular internal training sessions, compensation for external education, attendance of specialized global conferences
🎯Rewards program for mentoring and coaching colleagues
✈️In-house Travel Service
🦄Multiple internal activities: online platform for employees with quests, gamification, presents and news, clubs for movie / book / pets lovers and more
🎳Other benefits could be added based on your location