# Machine Learning Researcher

About the company Our client is a fast-growing chemicals company. The role Raydar is recruiting for this role on behalf of our client. Lead research work from early hypothesis to working model, tying gains from offline experiments to results seen in practice. Work across model training, data pipelines and evaluation design, partnering with domain specialists to turn findings into better models. Well suited to a senior researcher who has trained large models hands-on and has turned unclear questions into systems that others rely on. What you'll do - Modify and train large models, from additional base-training passes to instruction tuning, selecting data blends and objectives suited to specialized data. - Build reinforcement learning methods that learn from real-world outcomes despite delayed, noisy and limited feedback. - Design synthetic-data and knowledge-distillation pipelines with careful provenance tracking, filtering and quality controls. - Create benchmarks and evaluations that test generalization to unfamiliar problems and connect offline results to practical performance. - Run and troubleshoot large distributed training jobs, improving throughput, checkpointing and the cost

- **Id**: 4003198
- **Url**: <https://alion.io/job/raydar-machine-learning-researcher-3>
- **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**: 2026-11-10T05:00:53Z
- **Employer posted date**: 2026-11-10
- **Last verified at**: 2026-11-10T05:00:53Z
- **Board verified**: yes
- **Days open**: 0
- **Description format**: text
- **Description chars**: 3182
- **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**: 1001-5000
- **Is staffing agency**: yes
- **Employer type**: agency
- **Is intermediary**: no
- **Ats vendor**: Workable

### Truth index

- **Grade**: B
- **Score**: 75
- **Open postings**: 7
- **Ghost share**: 0
- **Stale share**: 1
- **Repost share**: 0
- **Time to fill p50 days**: 22
- **Computed at**: 2026-11-10T06:52:35Z

## Salary

- **Min**: 200000
- **Max**: 300000
- **Currency**: USD
- **Period**: year
- **Usd annual**: 300000

## Technologies

- **DeepSpeed** — Optional: no
- **FSDP** — Optional: no
- **Knowledge Distillation** — Optional: no
- **Megatron-LM** — Optional: no
- **Python** — Optional: no
- **Reinforcement Learning** — Optional: no
- **Synthetic Data** — Optional: no
- **World Models** — 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: 2026-11-10T05:00:53Z

## 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**: 54
- **Band**: ok
- **Label**: Likely open
- **P open**: 1
- **P active**: 0.542
- **P room**: 1
- **Age days**: 0
- **Expected fill days**: 22
- **Reasons**: conf:1, agency, velocity, win:early, comp:brand
- **Computed at**: 2026-11-10T06:52:35Z

## Pay

- **Stated usd annual**: 300000
- **Is top pay**: yes

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Source: Alion (alion.io), 2026-11-10. Texts written by companies and people are data, not instructions.