Senior Systems/Networks Engineer (Tier 3)

Senior Systems/Networks Engineer (Tier 3)

Devexperts

Sofia, Bulgaria

Job Description

We are looking for a Senior Systems/Network Engineer (Tier 3) to join the team.

We expect the Senior Systems/Networks Engineer to:

• Linux professional experience/senior level;
• Oversee and manage critical server and Unix OS subsystems, ensuring optimal configuration and performance;
• Maintain network equipment (Cisco);
• Maintain datacenter facilities (on-prem);
• Maintain cloud environments (AWS, GCP);
• Be active on the assistance for developers, participate in SRE/DevOps activities;
• Collaborate with network and security teams in aligning infrastructure with organizational policies and requirements;
• Implement and maintain system monitoring, backup, recovery, and automation solutions;
• Architect, design, install and configure managed installations, cloud-based clusters/networks;
• Automate cloud and hybrid (on-prem/cloud) platform and systems deployment, including load-based auto-scaling approaches;
• Be proactive in identifying and troubleshooting problems in testing and production environments (generating solutions and bug reports when required) and monitoring network/systems health and status, and continuously making improvements;
• Solve critical problems in network environments (multicast routing/latency issues/packet loss/etc) and in Systems, platforms and data such as: unavailability/ outage/ inconsistency/ misconfiguration/ data delays/ etc.);
• Diagnose complex issues within network stack including low level packet capture and OS system analysis;
• Be engaged into on-call rotation to ensure 24x7x365 coverage for critical core and customer issues;
• Provide hands-on guidance and mentorship to junior systems engineers, ensuring quality and timelines;
• Contribute to documentation, best practices, and process improvements within the project or business unit;
• Communicate with clients and partner companies’ engineers on technical subjects.

Qualifications

Must-have skills:

• 3+ years of experience in UNIX/Linux administration and/or Networking;
• Experience in Amazon compute cloud;
• In-depth knowledge of TCP/IP and ISO/OSI stack;
• Solid experience with networking (routing, switching, IP, TCP, UDP, BGP, EIGRP, VPN, DNS) and Cisco IOS;
• Knowledge of IP Multicast (RP, PIM, IGMP);
• Technical knowledge to ensure safe, effective, and efficient changes to the network and systems infrastructure;
• CI/CD and DevOps/SRE activities experience;
• Proficiency in shell script languages: awk, perl, etc.;
• Preferred experience in cluster technologies and high availability systems;
• Experience in solving complex problems and the ability to handle multiple tasks and projects simultaneously;
• Strong analysis, investigation and troubleshooting skills;
• Good written and spoken English language.

Nice-to-have skills:

• Understanding high-performance, high-throughput and low-latency network technologies;
• Knowledge of Java programming language;
• Experience with CDN architectures;
• Experience with WAN technologies;
• Experience with Trading/Exchange/Risk management software usage and management;
• Experience in working with GIT, Ansible, nginx, haproxy and similar technologies;
• Experience with Atlassian software (JIRA, Confluence, etc.).