Devexperts Ireland Limited

Senior Systems/Networks Engineer

Devexperts Ireland Limited · Porto, Porto District, Portugal
Porto, Porto District, Portugal Closed
Applications are closed for this role. It was originally posted 2026-07-28. It’s no longer accepting applicants — see roles Devexperts Ireland Limited is still hiring for →, or browse the live openings below.
Type
Full-time
Experience
3+ yr

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.).

dxFeed is a subsidiary of Devexperts, a globally recognized fintech leader in capital markets technology. As an integral part of this established financial technology provider, dxFeed serves buy-side and sell-side firms worldwide, equipping traders, analysts, quants, and portfolio managers with accurate, real-time market data and insights to power smarter decision-making.

dxFeed employees create the art of FinTech in comfortable working spaces located in modern business centers around the world. Join our team in Porto and enjoy:

Work Regime Flexibility benefits:

  • Possibility of hybrid/remote work mode
  • Flexible working hours
  • Work From Anywhere Program
  • Occasional business trips to the US/EU/UK (having a valid passport is a heavy plus)

Health and recreation benefits:

  • Fully paid additional wellness days (3 unwell days per year)
  • Medical insurance for the employees and children
  • Reimbursement of fitness
  • Meal allowance
  • Flexpay system

Facility benefits:

  • Modern office with new equipment
  • PlayStation, table football, and musical instruments in the office
  • Parking spaces/transport reimbursement
  • Meals in the office
  • Free drinks and snacks

Community benefits:

  • Teambuilding activities
  • Corporate parties
  • Football club
  • Music club
  • Speakers' club
  • Free admission to corporate external events
  • Possibility of joining conferences and professional fairs
  • Personal branding development support

Professional training benefits:

  • English language courses
  • Local language courses for foreign employees
  • Unlimited access to self-learning platforms
  • Certification opportunities
  • Mentorship Program

Social benefits:

  • Parental bonus
  • Pension plan
  • Referral bonus
  • Blood donation paid leave
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