Senior Network Engineer

  • Dublin, Ireland
  • Full-time

Company Description

We believe everyone should be able to participate and thrive in the economy. So we’re building tools that make commerce easier and more accessible to all. We started with a little white credit card reader but haven’t stopped there. Our new reader helps our sellers accept chip cards and NFC payments, and our Cash app lets people pay each other back instantly. We’re empowering the independent electrician to send invoices, setting up the favorite food truck with a delivery option, helping the ice cream shop pay its employees, and giving the burgeoning coffee chain capital for a second, third, and fourth location. Let’s shorten the distance between having an idea and making a living from it. We’re here to help sellers of all sizes start, run, and grow their business—and helping them grow their business is good business for everyone.

Job Description


As a team, we value correctness, efficiency, and safety. We measure and monitor everything, and have a culture of continuous reflection and improvement.  We aim to eliminate friction in production and believe that no project should be delayed due to lack of reliable infrastructure. We believe that a well designed production environment can be beautiful.  We're looking for a network engineer who shares our values, particularly those who have experience building, monitoring, and maintaining a highly-available backbone interconnecting multiple data centers.

You will:

  • Help architect, design, and implement improvements to our global network
  • Interface with the security team to design and deliver security-related enhancements
  • Perform network based security risk assessments
  • Configure and administer network monitoring tools
  • Configure and administer routers and switches in a multi-vendor environment
  • Drive and/or assist in automating our network
  • Troubleshoot network failures and performance issues
  • Participate in an on-call rotation covering all of the above
  • Mentor and train other network engineers on the team
  • Occasionally be required to travel domestically and internationally


You have:

  • 5+ years hands-on experience with routing, switching, and load balancing in highly complex environments
  • In-depth knowledge of network concepts, devices, and protocols
  • Solid OSPF and BGP experience
  • Solid experience with open source environments, including automation/development building blocks such as python, git, ansible and others
  • Strong communication skills
  • Impressive organizational skills and the ability to multitask in an interrupt-driven, real-time environment
  • A personal commitment to quality

Even better:

  • Experience with Juniper, Arista and F5 platforms
  • Experience designing and implementing IPv6 networks
  • You have MPLS experience
  • You have experience with DevOps and/or as a programmer

Additional Information

At Square, we value diversity and always treat all employees and job applicants based on merit, qualifications, competence, and talent. We do not discriminate on the basis of race, religion, color, national origin, gender, sexual orientation, age, marital status, veteran status, or disability status. We will consider for employment qualified applicants with criminal histories in a manner consistent with the requirements of the San Francisco Fair Chance Ordinance.

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