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# Network System Engineer

- **Company:** BETBY
- **Location:** Berlin, Germany
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Proxmox, IEEE 802.1Q, Link Aggregation (Ethernet), Amazon Cloudfront, Amazon Elastic Compute Cloud, Amazon S3, Border Gateway Protocol, Command-Line Interface, Cloud Computing, Configuration Management, Cyber Security, Databases, Continuous Integration, Data Centers, Debian Linux, Linux, Fault Tolerance, HAProxy, Monitoring of Systems, Internet Protocol Security (IP SEC), IP Routing, Subnetting, Virtual Private Networks (VPN), Python (Programming Language), Kernel-Based Virtual Machine, PostgreSQL, Message Broker, MongoDB, Network Configuration and Change Management, Routing, Nginx, Open Shortest Path First (OSPF), OpenVPN, Open VSwitch, Performance Tuning, RabbitMQ, Cloud Services, Ansible, Prometheus, Virtual Local Area Networks, Virtual Router Redundancy Protocols, VirtualBox, Virtualization Technology, Web Services, Ceph (Software), Data Logging, Scripting, Computer Networking Systems, Fluentd, Grafana, HybridCloud, Infrastructure as Code (IaC), Gitlab, Containerization, Kubernetes, Low Latency, Iptables, Performance Monitor, Apache Kafka, Vertica, Firewall Services Module, Terraform, Software Version Control, OpenSearch, Docker, Vmware
- **Published:** October 31, 2026
- **Apply:** https://www.adzuna.de/details/5947073515

## About the Role

* Minimum 5 years of experience in IT infrastructure management, technical support, or a related role;
 * Experience with Linux-based operating systems, experience with Debian-based systems would be a plus;
 * Experience with shell command line usage and basic scripting, automation tooling (Ansible, Terraform);
 * Experience with virtualization technologies like VMware, KVM, VirtualBox and etc.;
 * Expert-level knowledge of Linux networking stack, including netlink, namespaces, performance tuning for high-speed interfaces (10G/25G), strong knowledge of LACP (802.3ad), VLAN tagging (802.1Q), bonding, OSPF/BGP, stateful firewalls (iptables/nftables) and VPN protocols, experience with the BIRD routing daemon is highly preferred;
 * Hands-on experience with AWS networking (VPCs, Subnets, Route Tables, Security Groups) and Site-to-Site VPN (IPSEC);
 * Familiarity with containerization technologies like Docker and container orchestration tools like Kubernetes would be a plus;
 * Excellent problem-solving skills and attention to details;
 * Strong communication and interpersonal skills;
 * Ability to work independently and as part of a team.

## Description

We are looking for a experienced Scala Engineer to join our Line management team at BETBY. The team is building and maintaining platform that delivers betting odds to the sportsbook. This is a high-impact role within a cross-functional environment, working closely with multiple teams and services.
RESPONSIBILITIES

 * Routing & Traffic Management: Deploy, maintain and optimize our Linux-based routing stack, ensure fault tolerance and security.
 * Virtualization Networking: Manage network configurations on Proxmox hosts, including the automation and maintenance of LACP bonds, Linux bridges, VLAN tagging and etc.
 * Hybrid Cloud Connectivity: Design, deploy, and maintain secure connectivity of our on-premise bare-metal clusters with Cloud resources (VPCs) and across multiple data centers.
 * Infrastructure as Code (IaC): Automate the deployment of network configurations (bonding, interfaces, BIRD configs) to ensure consistency across the fleet and reduce manual intervention.
 * Security & Microsegmentation: Implement and refine firewall rules/security groups to maintain strict microsegmentation and protect internal assets.
 * Performance Monitoring: Proactively monitor interface throughput, latency, and routing stability. Troubleshoot complex L2/L3 issues in a multi-DC environment.
 * Collaboration: Act as the primary technical point of contact for Datacenter teams regarding upstream VLAN and switch port configurations. Act as the primary point of contact for network-related inquiries and support requests from internal teams. Evaluate, prioritize, and resolve/troubleshoot technical issues (connectivity, latency, performance and etc.) in a timely and efficient manner. Collaborate with other teams and vendors to address complex issues.
 * Documentation and Process Improvement: develop and maintain clear documentation for networking infrastructure, processes, tools, and workflows to empower teammates to resolve issues via self-service and prevent issue recurrence. Create new documentation for internal use that will serve as our process guides, maintain registries of assets in order.
 * Ensuring compliance with IT policies and standards, including data protection and information security., * OS: Debian;
 * Virtualization: KVM, Proxmox;
 * Storages: Ceph, S3;
 * Networking: IPsec, Open vSwitch, iptables, VRRP, OpenVPN;
 * DBMS: MongoDB, PostgreSQL, ClickHouse;
 * Message brokers: Kafka, RabbitMQ;
 * Service orchestration: Kubernetes;
 * Monitoring systems: VictoriaMetrics, Prometheus, Alertmanager, Grafana;
 * Logging pipeline: Fluent Bit, Kafka, Fluentd, OpenSearch, OpenSearch Dashboards;
 * Revision control and CI/CD tools: GitLab;
 * Cloud services: Amazon Cloudfront/WAF/S3/EC2/EKS/ELB;
 * Web services: Nginx, HAproxy;
 * Configuration management: Ansible, Terraform;
 * Scripting: Python, bash.