jobctl

Sr. Software Engineer, X Money

SpaceXSI - London, England, United Kingdom - original posting ->
Status
Open
Remote policy
Not stated
Employment type
Not stated
Salary
Not stated
Categories
Engineering
Tech
gojavapythonrustsoftwaresenior
Source
xai
First observed
2026-08-18 21:02 UTC
Last seen
2026-11-06 06:49 UTC
Source claims posted
2026-04-14 20:55 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. SOFTWARE ENGINEER, X MONEY

We are seeking a talented Software Engineer to join our X Money team, focused on building a revolutionary global payment network that will serve over 600 million users and rival the world’s largest financial institutions. In this role, you will specialize in backend development, designing and optimizing robust microservices to ensure scalability, security, and reliability. You will support full-stack efforts, collaborate with cross-functional teams on payments, fraud detection, and compliance initiatives, and contribute to the creation of a high-scale financial products platform. This is an opportunity to work on greenfield projects in a fast-paced, startup-like environment, driving innovation at the intersection of AI and finance.

RESPONSIBILITIES:

Develop backend services, APIs, and data models to support high-volume, multi-user environments

Work with iOS, Android & Web client engineers to ship products

Design robust infrastructure and microservices for payments, transactions, growth, monetization, and engagement across platforms

Build and maintain fullstack features, including user dashboards, personalized experiences, content delivery, interactive tools, assessments, and real-time analytics

Lead architecture, scalability, and reliability decisions for high-concurrency, low-latency systems

Uphold engineering excellence via testing, monitoring, deployment, and secure data handling

BASIC QUALIFICATIONS:

5+ years of experience working on large scale consumer applications or early-mid stage startup experience as a founding engineer, emphasizing rapid prototyping, user-centric design, and AI solutions

PREFERRED SKILLS AND EXPERIENCE:

Experience with high-volume streaming systems

Experience with distributed systems for high-scale, low-latency environments

Experience with Rust, Go, Python, or Java

COMPENSATION AND BENEFITS:

£107,000 - £262,000 GBP

Base salary is just one part of our total rewards package at SpaceXSI, which also includes equity, comprehensive healthcare and dental coverage, cash plan, income protection, life insurance, and various other discounts and perks.

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

Quality

Completeness: 45%
Honesty: 90%

Based on 29 observation(s).

Timeline

  1. *
    #161916 2026-08-18 21:02 UTC
    Published
  2. ~
    #167642 2026-08-19 01:02 UTC
    Modified
    • source_updated_at
      2026-08-18T15:14:36-04:00->2026-08-18T18:10:46-04:00
  3. ~
    #199866 2026-08-20 01:16 UTC
    Modified
    • source_updated_at
      2026-08-18T18:10:46-04:00->2026-08-19T18:53:03-04:00
  4. ~
    #231311 2026-08-21 04:27 UTC
    Modified
    • source_updated_at
      2026-08-19T18:53:03-04:00->2026-08-20T20:36:54-04:00
  5. ~
    #259273 2026-08-21 23:53 UTC
    Modified
    • source_updated_at
      2026-08-20T20:36:54-04:00->2026-08-21T18:24:01-04:00
  6. ~
    #388584 2026-08-26 22:37 UTC
    Modified
    • source_updated_at
      2026-08-21T18:24:01-04:00->2026-08-26T17:48:54-04:00
  7. ~
    #394212 2026-08-27 06:39 UTC
    Modified
    • source_updated_at
      2026-08-26T17:48:54-04:00->2026-08-26T23:12:24-04:00
  8. ~
    #407457 2026-08-27 22:40 UTC
    Modified
    • source_updated_at
      2026-08-26T23:12:24-04:00->2026-08-27T18:09:48-04:00
  9. ~
    #513951 2026-09-02 01:30 UTC
    Modified
    • categories
      Not stated->Not stated
    • source_updated_at
      2026-08-27T18:09:48-04:00->2026-09-01T21:07:51-04:00
  10. ~
    #557788 2026-09-03 21:32 UTC
    Modified
    • source_updated_at
      2026-09-01T21:07:51-04:00->2026-09-03T14:58:20-04:00
  11. ~
    #564542 2026-09-04 05:32 UTC
    Modified
    • source_updated_at
      2026-09-03T14:58:20-04:00->2026-09-04T00:53:32-04:00
  12. ~
    #646355 2026-09-08 23:51 UTC
    Modified
    • source_updated_at
      2026-09-04T00:53:32-04:00->2026-09-08T18:33:02-04:00
  13. ~
    #963269 2026-09-24 06:03 UTC
    Modified
    • source_updated_at
      2026-09-08T18:33:02-04:00->2026-09-23T23:22:06-04:00
  14. ~
    #975014 2026-09-24 18:07 UTC
    Modified
    • source_updated_at
      2026-09-23T23:22:06-04:00->2026-09-24T13:08:49-04:00
  15. ~
    #1100297 2026-09-30 22:44 UTC
    Modified
    • source_updated_at
      2026-09-24T13:08:49-04:00->2026-09-30T16:41:12-04:00
  16. ~
    #1295353 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...
  17. ~
    #1311426 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->2026-10-12T19:35:19-04:00
  18. ~
    #1314400 2026-10-13 05:08 UTC
    Modified
    • Organisation
      SpaceXAI->SpaceXSI
  19. ~
    #1330485 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
      2026-10-12T19:35:19-04:00->2026-10-13T15:30:12-04:00
  20. ~
    #1334697 2026-10-14 01:11 UTC
    Modified
    • source_updated_at
      2026-10-13T15:30:12-04:00->2026-10-13T20:15:02-04:00
  21. ~
    #1488196 2026-10-22 18:01 UTC
    Modified
    • source_updated_at
      2026-10-13T20:15:02-04:00->2026-10-22T11:10:16-04:00
  22. ~
    #1588266 2026-10-28 10:01 UTC
    Modified
    • Title
      Software Engineer - X Money->Software Engineer (X Money)
    • 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->2026-10-28T04:11:48-04:00
  23. ~
    #1664379 2026-10-31 18:02 UTC
    Modified
    • Title
      Software Engineer (X Money)->Software Engineer, X Money
    • 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
      2026-10-28T04:11:48-04:00->2026-10-31T13:48:01-04:00
  24. ~
    #1721014 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
      2026-10-31T13:48:01-04:00->2026-11-03T20:50:53-05:00
  25. ~
    #1732309 2026-11-04 18:48 UTC
    Modified
    • source_updated_at
      2026-11-03T20:50:53-05:00->2026-11-04T13:39:28-05:00
  26. ~
    #1737719 2026-11-04 22:48 UTC
    Modified
    • source_updated_at
      2026-11-04T13:39:28-05:00->2026-11-04T14:33:15-05:00
  27. ~
    #1756534 2026-11-05 14:48 UTC
    Modified
    • source_updated_at
      2026-11-04T14:33:15-05:00->2026-11-05T09:40:53-05:00
  28. ~
    #1761127 2026-11-05 18:48 UTC
    Modified
    • source_updated_at
      2026-11-05T09:40:53-05:00->2026-11-05T13:33:11-05:00
  29. ~
    #1771313 2026-11-06 06:49 UTC
    Modified
    • Title
      Software Engineer, X Money->Sr. Software Engineer, X Money
    • 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->2026-11-06T01:29:14-05:00