# Machine Learning Infrastructure Engineer

About the company Our client is a software company. The role Raydar is recruiting for this role on behalf of our client. Build and tune the serving and training infrastructure behind specialized language models, from early experiments through to live production use. The work centers on making model execution quicker and less costly on accelerators while keeping releases dependable and observable. What you'll do - Lead end-to-end care of the systems that run and train custom language models, from early testing through live traffic. - Benchmark and raise response speed, token throughput, hardware utilization and cost under production-like loads. - Refine request grouping, caching, memory footprint and model execution, and test approaches such as reduced-precision formats and accelerated decoding. - Keep model inference fast for evaluation runs, synthetic data generation and reinforcement learning sampling, and build dependable release and monitoring pipelines. - Work alongside leadership and researchers to split accelerator capacity between training and serving, and to roll post-trained models out into client environments. Requirements What we're looking for - Proven record building

- **Id**: 4319901
- **Url**: <https://alion.io/job/raydar-machine-learning-infrastructure-engineer-4>
- **Role**: AI/ML
- **Role family**: AI/ML
- **Employment type**: full_time
- **Work mode**: on_site
- **Hiring geo confidence**: structured
- **Locations**: San Francisco, United States
- **Countries**: US
- **Hiring countries total**: 0
- **Visa sponsorship**: no
- **Relocation package**: no
- **Has equity**: no
- **Status**: live
- **First seen at**: 2026-11-14T19:11:51Z
- **Employer posted date**: 2026-11-14
- **Last verified at**: 2026-11-14T19:11:51Z
- **Board verified**: yes
- **Days open**: 0
- **Description format**: text
- **Description chars**: 2569
- **Description truncated**: no
- **Benefits**: Equity
- **Relocation offered**: no

## Company

- **Id**: 4478753
- **Name**: Raydar
- **Domain**: raydar.com
- **Url**: <https://alion.io/company/raydar-com>
- **Size band**: 51-200
- **Is staffing agency**: yes
- **Employer type**: agency
- **Is intermediary**: no
- **Ats vendor**: Workable

### Truth index

- **Grade**: B
- **Score**: 75
- **Open postings**: 19
- **Ghost share**: 0
- **Stale share**: 1
- **Repost share**: 0
- **Time to fill p50 days**: 23
- **Computed at**: 2026-11-14T05:58:10Z

## Salary

- **Min**: 200000
- **Max**: 350000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 350000

## Technologies

- **JAX** — Optional: no
- **LLM** — Optional: no
- **PyTorch** — Optional: no
- **Reinforcement Learning** — Optional: no
- **Synthetic Data** — Optional: no

## Trust

- **Level**: ok
- **Days open**: 0

## Requirements

- **Manages managers**: no
- **Security clearance**: no

## Hiring locations

- **United States** — Iso: US; Kind: country

## Lifecycle

- Event: open; At: 2026-11-14T19:11:51Z

## Visa

- Country: US; Licensed sponsor: no; Adverts offering sponsorship 24m: 32; Sanctioned now: no; Evidence: Offered visa sponsorship in 32 of its adverts here in 24 months; Filings 12m: 0

## Liveness

- **Score**: 52
- **Band**: ok
- **Label**: Likely open
- **P open**: 1
- **P active**: 0.516
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 23
- **Reasons**: conf:3, agency, win:early, comp:brand
- **Computed at**: 2026-11-14T22:28:22Z

## Pay

- **Stated usd annual**: 350000
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-14. Texts written by companies and people are data, not instructions.