jobctl

Sr. Network Engineer

SpaceXSI - Dublin, Ireland - original posting ->
Status
Open
Remote policy
Not stated
Employment type
Not stated
Salary
Not stated
Categories
Engineering
Tech
ansibleterraformpythonsoftwaresenior
Source
xai
First observed
2026-09-14 17:31 UTC
Last seen
2026-11-06 06:49 UTC
Source claims posted
2026-09-14 13:52 UTC
Consecutive misses
0 of 3

What the posting says

SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where we are not. Today, SpaceX is actively developing the technologies to make this possible, with the ultimate goal of making life multiplanetary and expanding consciousness to the stars.

SpaceXSI is building Super Intelligence to help humanity understand the universe. Our teams are building the full Super Intelligence stack: from our Colossus supercomputers, to Grok models, to our suite of applications, including Grok Bot, Grok Build, Grok Imagine, Grok Voice, and X. We're creating a powerful flywheel where more compute trains better models, better models power more useful products, and what we learn from people using those products shapes what we build next.

SR. NETWORK ENGINEER

SpaceXSI is building and operating large-scale networks that underpin training and inference infrastructure, including high-performance / supercompute fabrics that connect GPU clusters, plus the core, edge, and datacenter networks that keep that infrastructure reachable and reliable.

We need a Network Engineer who is strong on fundamentals and comfortable owning production network design, deployment, and operations end to end. This is a hands-on engineering seat — not a NOC technician role and not a network-software (telemetry/ZTP platform) SWE role. You will design and build networks, qualify platforms, ship changes safely, and keep availability and performance high as we scale.

Travel to Memphis (and other build sites) may be required for capacity build-outs. You will participate in a team on-call rotation.

RESPONSIBILITIES:

Design, deploy, and operate production datacenter and campus/core networks at scale

Own routing and switching configuration standards (BGP and at least one IGP such as OSPF or IS-IS), including change design, peer reviews, and execution

Qualify new network platforms, optics, and topologies; contribute to architecture and capacity planning

Build and improve monitoring, alerting, and operational documentation so issues are caught and fixed quickly

Troubleshoot Layer 2/Layer 3 incidents end to end — from link flaps and optics through routing and traffic engineering — and drive root cause and lasting fixes

Automate repetitive network tasks with Python, Ansible, or similar tooling where it reduces toil

Partner with compute, facilities, and software teams during cluster build-outs and maintenance windows

Support high-performance / supercompute network environments (Ethernet AI/HPC fabrics, RoCE/RDMA-capable designs) as part of the broader network estate

BASIC QUALIFICATIONS:

Bachelor’s degree or higher in computer science, computer engineering, electrical engineering, or engineering discipline

5+ years of experience designing and/or operating production networks in a datacenter, ISP, cloud, or large enterprise environment

PREFERRED SKILLS AND EXPERIENCE:

Experience troubleshooting live production network incidents and participating in on-call

Experience with BGP and at least one interior routing protocol

Strong written and verbal communication; clear change docs and incident notes

Working knowledge of TCP/IP, VLANs, EVPN/VXLAN or equivalent datacenter overlays, and optics / high-speed Ethernet

Experience with modern datacenter vendors (e.g. Arista, Cisco, Juniper, Nvidia/Mellanox)

Familiarity with high-performance or supercompute networking (RoCEv2, congestion control, GPU cluster fabrics) — useful context for our environment, not a hard filter

Network automation (Python, Ansible, Terraform, or similar) used in production

Experience with EVPN, leaf-spine, and large-scale Ethernet fabrics

Prior work supporting rapid datacenter or cluster capacity build-outs

Deep specialist RoCE/NCCL ownership

ADDITIONAL REQUIREMENTS:

Willing to work onsite in Dublin

SpaceXSI is an equal opportunity employer. For details on data processing, view our Recruitment Privacy Notice.

Quality

Completeness: 45%
Honesty: 100%

Based on 18 observation(s).

Timeline

  1. *
    #747712 2026-09-14 17:31 UTC
    Published
  2. ~
    #758413 2026-09-15 01:32 UTC
    Modified
    • Description
      SpaceXAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our...->SpaceXAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our...
    • source_updated_at
      2026-09-14T09:52:13-04:00->2026-09-14T18:39:31-04:00
  3. ~
    #963153 2026-09-24 06:03 UTC
    Modified
    • source_updated_at
      2026-09-14T18:39:31-04:00->2026-09-23T23:22:06-04:00
  4. ~
    #974898 2026-09-24 18:07 UTC
    Modified
    • source_updated_at
      2026-09-23T23:22:06-04:00->2026-09-24T13:09:08-04:00
  5. ~
    #1100172 2026-09-30 22:44 UTC
    Modified
    • source_updated_at
      2026-09-24T13:09:08-04:00->2026-09-30T16:41:12-04:00
  6. ~
    #1295222 2026-10-12 13:22 UTC
    Modified
    • Description
      SpaceXAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our...->SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where...
  7. ~
    #1311294 2026-10-13 01:08 UTC
    Modified
    • Description
      SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where...->SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where...
    • source_updated_at
      2026-09-30T16:41:12-04:00->2026-10-12T19:56:58-04:00
  8. ~
    #1314268 2026-10-13 05:08 UTC
    Modified
    • Organisation
      SpaceXAI->SpaceXSI
  9. ~
    #1330354 2026-10-13 21:10 UTC
    Modified
    • Description
      SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where...->SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where...
    • source_updated_at
      2026-10-12T19:56:58-04:00->2026-10-13T15:30:22-04:00
  10. ~
    #1334567 2026-10-14 01:11 UTC
    Modified
    • source_updated_at
      2026-10-13T15:30:22-04:00->2026-10-13T20:15:02-04:00
  11. ~
    #1488073 2026-10-22 18:01 UTC
    Modified
    • source_updated_at
      2026-10-13T20:15:02-04:00->2026-10-22T11:10:16-04:00
  12. ~
    #1630987 2026-10-30 06:02 UTC
    Modified
    • Description
      SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where...->SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where...
    • source_updated_at
      2026-10-22T11:10:16-04:00->2026-10-30T01:33:57-04:00
  13. ~
    #1720992 2026-11-04 02:47 UTC
    Modified
    • Description
      SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where...->SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where...
    • source_updated_at
      2026-10-30T01:33:57-04:00->2026-11-03T20:44:31-05:00
  14. ~
    #1732177 2026-11-04 18:48 UTC
    Modified
    • source_updated_at
      2026-11-03T20:44:31-05:00->2026-11-04T13:39:28-05:00
  15. ~
    #1737588 2026-11-04 22:48 UTC
    Modified
    • source_updated_at
      2026-11-04T13:39:28-05:00->2026-11-04T14:33:15-05:00
  16. ~
    #1756406 2026-11-05 14:48 UTC
    Modified
    • source_updated_at
      2026-11-04T14:33:15-05:00->2026-11-05T09:40:53-05:00
  17. ~
    #1760997 2026-11-05 18:48 UTC
    Modified
    • source_updated_at
      2026-11-05T09:40:53-05:00->2026-11-05T13:33:11-05:00
  18. ~
    #1771309 2026-11-06 06:49 UTC
    Modified
    • Title
      Network Engineer->Sr. Network Engineer
    • Description
      SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where...->SpaceX was founded under the belief that a future where humanity is out exploring the stars is fundamentally more exciting than one where...
    • source_updated_at
      2026-11-05T13:33:11-05:00->2026-11-06T01:40:48-05:00