Software Engineer - Training/Inference (C++)
SpaceXAI · Palo Alto, CA
Posted about 2 months ago · $180,000 - $440,000
or apply directly on SpaceXAI's site. We never take the application ourselves.
Is this posting real?
- This role has been open
- 66 days SpaceXAI's roles stay open a median of 66 days
- Reposted
- No
- Salary listed
- Yes 32% of SpaceXAI's roles list one
- Ghost-job risk at SpaceXAI
- high 221 stale, 5 reposted of 258 open
- Hiring momentum
- 339 roles opened in the last 90 days ↑ up vs. the prior 90 days
- Last confirmed on the employer's board
- 2026-10-08
Measured from postings appearing on and disappearing from SpaceXAI's own greenhouse board since 2026-08-03. Full hiring picture for SpaceXAI.
About this role
As a Software Engineer focused on Training/Inference at SpaceXAI, you will design and optimize a high-performance inference platform that serves millions of users. Your responsibilities include architecting scalable distributed infrastructure, optimizing model inference for latency and throughput, and developing CI/CD tools for deployment and updates. This role demands a hands-on approach and a commitment to engineering excellence in a fast-paced environment.
- benefits
- 4/5
- freshness
- 1/5
- career value
- 5/5
- role clarity
- 5/5
- pay transparency
- 5/5
Scored from the posting itself — how clearly the role is described, how much it says about pay and benefits, and how recently it was listed. Not a judgement of SpaceXAI as an employer.
What you need
- Deep low-level systems programming (C/C++ or Rust)
- Experience with large-scale, high-concurrent production serving
- Experience with GPU inference engines (vLLM, SGLang, Triton, TensorRT-LLM, etc.)
- Strong background in system optimizations: batching, caching, load balancing, parallelism
- Low-level inference optimizations: GPU kernels, code generation
- Algorithmic inference optimizations: quantization, speculative decoding, distillation, low-precision numerics
What you get
- $180,000 - $440,000 USD
- Equity
- Comprehensive medical, vision, and dental coverage
- Access to a 401(k) retirement plan
- Short & long-term disability insurance
- Life insurance
Worth weighing
- High-impact role with direct influence on user interaction speed and reliability
- Flat organizational structure may require self-motivation and initiative
- Focus on low-level systems programming may not appeal to all software engineers
Summarised from SpaceXAI's posting. Read the full original.
Listed by SpaceXAI on their greenhouse job board, last confirmed open on 2026-10-08. PitchMeAI is not the employer.
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