Reins AI
 is hiring a fractional

Reliability Data Scientist

Added 

x

 - Syndicated from 
Company Website

How Syndicated Job Posts Work

This job was not posted directly to Fractional Jobs. It’s syndicated from another platform
To apply, view the application and follow their guidelines
Please let them know that Fractional Jobs sent you!

This Role is Closed

This company has already made a successful hire.
Fractional jobs get filled quickly. To get alerted when new fractional jobs go live, subscribe to our alerts.

This is a Featured Job

100% guarantee that your intro request will be seen
You’ll receive an update within 14 days
If the company is interested, we’ll intro the two of you directly

Weekly Commitment

20 hrs

Compensation Range

Unknown

Company Stage

Early-stage VC

Industry

AI

Location

Remote
moonlight ok
moonlight ok
convert full-time
convert full-time
equity offered
equity offered
hands-on needed
hands-on needed

Note: We've kept the name of the company private. If you'd like to know the company before requesting an intro, just email us at hello [at] fractionaljobs.io

Role Overview

At Reins AI, data scientists define and operationalize how we measure reliability in real-world AI systems. You’ll bridge evaluation design and data analysis, crafting the test logic behind our reliability dashboards and weekly reports. Working across regulated audit and finance contexts, you’ll translate evaluation scenarios into structured metrics, visualizations, and summaries that help our clients see what’s working, what’s drifting, and what needs triage. You’ll collaborate closely with our Solutions Architect and Reliability Lead to connect monitoring data (Grafana, LangSmith, Arize) with simulations and context-engineering workflows, building the analytical backbone of AI Ops reporting.

Responsibilities

  • Partner with domain and monitoring leads to define evaluation scenarios and metrics  
    (quality, suitability, reliability).
  • Build and maintain evaluation datasets, golden traces, and error taxonomies.
  • Develop and maintain weekly reliability dashboards and summary reports (Grafana, Python,  
    SQL, or notebooks).
  • Analyze evaluation results for drift, outliers, and context-dependent failures; flag issues for  
    triage and verification loops.
  • Collaborate with engineers to automate scoring and aggregation pipelines.
  • Validate evaluator reliability and calibration against human judgments.
  • Document test logic, metric definitions, and interpretation guidance for repeatability.
  • Support context-engineering workflows by designing metrics that measure predictability,  
    observability, and directability.

Qualifications

  • 3-6 years in data science, analytics, or ML evaluation roles.
  • Experience building dashboards and automated reports (Grafana, PowerBI, or similar).
  • Strong Python, SQL, and data-wrangling skills.
  • Familiarity with evaluation design concepts (sampling, calibration, pass/fail criteria).
  • Excellent communication: can turn technical data into clear, decision-ready insights.

Preferred Skills

  • Background in AI system monitoring, LLM evaluation, or reliability engineering.
  • Familiarity with LangSmith, OpenInference, or similar tracing frameworks.
  • Experience with synthetic or simulated data analysis.
  • Understanding of regulated domains (audit, finance, healthcare).

Employment Details

This will start as a 4–6 month contract engagement (20 hours/week) with a clear path to full‐ time employment as we finalize 2026 project scopes. We’ll jointly evaluate fit, scope, and structure during that period.

Optimal start date:  December 15, 2025


How to Apply

Note: This is a syndicated job post. Fractional Jobs found it on the web, but we are not working with the client directly, so we don't have control over or knowledge of the application process. To apply, click on the "View Application" button and follow the application's instructions. Let us know how it goes!


How to Get in Touch

Hit that "Request Intro" button below. Include any relevant links so we can get to know you better.

Your brief intro note should clearly address:


If we think there's a fit, we'll reach out to schedule an intro call. Looking forward!

x
More
Engineering
Jobs

Reins AI

 - 

AI Systems Architect

 

20 hrs
 | 
Unknown
 | 
Remote
Engineering
Syndicated
November 24, 2025
ai-systems-architect-at-reins-ai
added 

Lepaya

 - 

Senior Internal IT Manager

 

10 - 20 hrs
 | 
Unknown
 | 
Hybrid (Amsterdam only)
Engineering
Syndicated
November 22, 2025
senior-internal-it-manager-at-lepaya
added 

Peach

 - 

Chief Information Security Officer

 

10 - 20 hrs
 | 
$120 - $144 / hr
 | 
Remote (USA only)
Engineering
Syndicated
November 22, 2025
chief-information-security-officer-at-peach-a3e7f
added 

Implicit

 - 

Frontend Engineer

 

10 - 20 hrs
 | 
Unknown
 | 
Remote (USA only)
Engineering
Syndicated
November 22, 2025
frontend-engineer-at-implicit
added 

TaxMD

 - 

Chief Technology Officer

 

5 - 9 hrs
 | 
Unknown
 | 
Remote
Engineering
Syndicated
November 22, 2025
chief-technology-officer-at-taxmd
added 

An ERP Solutions Provider

 - 

Engineering Manager

 

(
)
20 hrs
 | 
$150 - $175 / hr
 | 
Remote (Worldwide)
Engineering
Syndicated
November 19, 2025
engineering-manager-at-an-erp-solutions-provider
added 

Forward

 - 

AI Lead

 

20 hrs
 | 
$175 - $225 / hr
 | 
Remote (USA or Canada only)
Engineering
Syndicated
November 10, 2025
ai-lead-at-forward
added 

A Consumer Gen AI Startup

 - 

Senior Backend Engineer

 

(
)
20 - 40 hrs
 | 
$100 - $150 / hr
 | 
Remote (USA only)
Engineering
Syndicated
October 17, 2025
senior-backend-engineer-at-a-consumer-gen-ai-startup
added 

A Consumer Gen AI Startup

 - 

Senior Frontend Engineer

 

(
)
20 hrs
 | 
$100 - $150 / hr
 | 
Remote (USA only)
Engineering
Syndicated
September 30, 2025
senior-frontend-engineer-at-a-consumer-gen-ai-startup
added 
Contentful - Head of Marketing
(contentful.com)
10hrs / up to $10k monthly / New York (remote)
Contentful - Head of Marketing
(contentful.com)
10hrs / up to $10k monthly / New York (remote)
Contentful - Head of Marketing
(contentful.com)
10hrs / up to $10k monthly / New York (remote)
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Send fractional jobs, 

playbooks, and more to

You’re in! Check your inbox to confirm.
We also post job alerts on
&
Hhmm, try again. That didn’t work.