> AI agents: this is one page of Nextmove’s FDE site, in Markdown. Nextmove is a job board and free career service for forward deployed engineers (FDEs). Each posting is classified from its text, not its title: the kind of work, how much of it is production code, pre-sales weight, time at customer sites, travel, remote arrangement, level and posted base pay. The site also publishes the aggregates: median pay by level, metro, company and kind of work, and which companies started hiring FDEs each week. Every page under https://nextmove.md/fde is served this way; the index of pages is https://nextmove.md/llms.txt.

# Forward Deployed Engineer

Canonical URL: https://nextmove.md/fde/jobs/6493c976512eaa0e

Isidor posts a FDE role to build what the customer runs in San Francisco, CA with no pay posted. Design custom data pipelines and integrations to collect, clean, and process high-quality training and evaluation data Read from the employer’s posting on November 8, 2026.

- [Isidor](https://nextmove.md/fde/companies/isidor)

Posted Oct 20, 2025 by Isidor · open on Greenhouse as of Nov 8, 2026

Pay not posted San Francisco, CA On-site Full-time

Design custom data pipelines and integrations to collect, clean, and process high-quality training and evaluation data

- [See roles that fit me](https://nextmove.md/sign-up?from=%2Ffde%2Fjobs%2F6493c976512eaa0e&placement=top)
- [View posting at Isidor](https://job-boards.greenhouse.io/isidor/jobs/4048584009)

Free. Upload your resume once, see why each FDE role fits, and get introduced only when you say so.

## At a glance

### Posted base pay

Not posted

Mid-level FDE postings, 106 postings: the middle 50% of posted pay is $123K to $162K, median $149K.

### The work

Builds what the customer runs

Balance **Mostly building**

Project stages

1. Pre-sales (not covered)
2. Proof of concept (not covered)
3. Implementation
4. Operations (not covered)

- **Coding**: Writes production code

- **Builds for**: External customers

- **Level**: Mid

- **Role**: Individual contributor

### What they ask for

Visa

- **Sponsors visas**

### Do you meet what the posting states?

The posting reads as a mid-level role. What level are you at now?

The job is in San Francisco, CA. Could you work there?

Which of these have you used in production?

Answer each one. Nothing is saved or sent.

[What postings ask for, by background →](https://nextmove.md/fde/paths)

## Conditions

- **Location**: San Francisco, CA

- **Work arrangement**: On-site

- **Employment type**: Full-time

- **Visa sponsorship**: Available

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## The job description from Isidor

Posted by Isidor on Oct 20, 2025

### About Us

Isidor is building the foundation of reliable AI. We believe that the next leap in AI depends as much on understanding and measuring model behavior as it does on model size. To make AI trustworthy, we need systems that verify outputs, benchmark performance, and automate evaluation across billions of examples.

Isidor was founded by engineers and researchers who care deeply about precision, transparency, and scientific rigor. We are a small, fast-moving team working directly with frontier AI labs and enterprise to make evaluation as measurable and reproducible as training itself.

Founded in September 2025, Isidor raised an **oversubscribed $3.6m pre-seed from leading funds including Gradient Ventures, futurepresent and Seedcamp, along with angels from Google DeepMind, Perplexity, Motive, Episode 1 and more. **

### The Role

As a Forward Deployed Engineer, you will work directly with frontier AI labs and enterprise, to design and ship the infrastructure behind their most critical data workflows. You will embed with research teams, understand their challenges, and build the pipelines, tools, and automations that move their experiments forward.

This is not a traditional backend role. You will translate ambiguous research needs into high-leverage technical systems, blending engineering with problem-solving, and seeing the impact of your work in real time. You will ship fast, iterate constantly, and help shape how the world’s most advanced models are trained and evaluated.

### What We’re Looking For

- Highly-driven, self-starters with strong proficiency in **Python**, including data manipulation, scripting, and automation (new grads/juniors with relevant intern/professional experience encouraged)
- Experience with **data wrangling and preprocessing**, cleaning raw data, and preparing it for ingestion into machine learning systems
- Familiarity with **machine learning workflows**, including feature engineering, dataset curation, and evaluation pipelines
- Advanced coursework in mathematics and/or evidence of strong **applied mathematical reasoning**
- Strong research and **communication skills**: ability to translate ambiguous research problems into robust, scalable technical solutions

### What You'll Do

- Design custom **data pipelines** and integrations to collect, clean, and process high-quality training and evaluation data
- Build technical infrastructure for advanced quality control workflows, including **model-in-the-loop** and **human-in-the-loop** systems
- Develop tools to **automate experiments** that improve model safety, interpretability, and human alignment
- Prepare datasets for ingestion into machine learning pipelines, ensuring consistency, accuracy, and reliability
- Collaborate with applied AI teams and top AI labs to turn research ideas into **production-ready infrastructure**

### Why Join Us

Your work will directly influence the development of the next generation of AI models, giving you the opportunity to make an **outsized impact on frontier research and implementation in enterprise. **
**Our momentum**: 0 → 7 figures in revenue in <1 month
**Backed by**: Gradient Ventures, futurepresent, Seedcamp, along with angels from Google DeepMind, Perplexity, Motive, Episode 1 and more

### Details

**Employment Type**: Full time, in-office

**Location**: London (in-person), with potential for relocation to San Francisco in H1 2026 (with visa support)

**Compensation: **Competitive salary + equity

### Benefits

- Relocation package
- Housing bonus (if within 3 miles of the office)

### Please reach out with any questions to founders@isidor.ai

[View posting at Isidor](https://job-boards.greenhouse.io/isidor/jobs/4048584009)

## About Isidor

Secure enterprise AI infrastructure that turns proprietary workflows and data into evals, verifiers, reasoning traces, and post-training pipelines for reliable model deployment.

Acquired · 1–10 people

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- [Compare mid FDE salary ranges](https://nextmove.md/fde/salary/mid-level)
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