dxFeed is hiring a Senior Systems/Networks Engineer (Tier 3)

We are looking for an experienced Senior Systems/Networks Engineer to join the team. We expect the Senior Systems/Networks Engineer to: - 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. 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.).