---
title: 'Member of Engineering (Experiment Platform) at Poolside'
canonical: 'https://feeny.ai/job/member-of-engineering-experiment-platform-poolside-emea-east-coast-united-states-xtq0yzc8wxk9'
type: 'job'
last_seen: '2026-09-09'
---

# Member of Engineering (Experiment Platform) at Poolside

- **Company:** Poolside
- **Location:** EMEA / East Coast, United States
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2026-07-21
- **Last confirmed live:** 2026-09-09
- **Apply:** https://jobs.ashbyhq.com/poolside/fbedf9a3-d3f4-4311-8ffd-70def97a5b62

## Job description

## ABOUT POOLSIDE

In this decade, the world will create artificial intelligence that reaches human level intelligence (and beyond) by combining learning and search. There will only be a small number of companies who will achieve this. Their ability to stack advantages and pull ahead will determine who survives and wins. These companies will move faster than anyone else. They will attract the world's most capable talent. They will be on the forefront of applied research and engineering at scale. They will create powerful economic engines. They will continue to scale their training to larger & more capable models. They will be given the right to raise large amounts of capital along their journey to enable this.

poolside exists to be one of these companies - to build a world where AI will drive the majority of economically valuable work and scientific progress.

We believe that software development will be the first major capability in neural networks that reaches human-level intelligence because it's the domain where we can combine Search and Learning approaches the best.

At poolside we believe our applied research needs to culminate in products that are put in the hands of people. Today we focus on building for a developer-led increasingly AI-assisted world. We believe that current capabilities of AI lead to incredible tooling that can assist developers in their day to day work. We also believe that as we increase the capabilities of our models, we increasingly empower anyone in the world to be able to build software. We envision a future where not 100 million people can build software but 2 billion people can.

View GDPR Policy https://poolside.ai/gdpr

## ABOUT OUR TEAM

We are a remote-first team that sits across Europe and North America and comes together once a month in-person for 3 days and for longer offsites twice a year.

Our R&D and production teams are a combination of more research and more engineering-oriented profiles, however, everyone deeply cares about the quality of the systems we build and has a strong underlying knowledge of software development. We believe that good engineering leads to faster development iterations, which allows us to compound our efforts.

## ABOUT THE ROLE

You'll sit at the intersection of Poolside's research, infrastructure, and agent teams, building a greenfield platform that democratises how every frontier model gets built. The Experiment Platform team owns the API gateway and the research services behind research velocity and experiment lineage. In a given week, you might design the data models and API contracts behind experiment intent, ship the CLI researchers use daily, or connect the platform to training and eval pipelines. If you want to own a foundational platform, work alongside the people building frontier models, and help shape where research infrastructure goes next, this is the role for you.

## YOUR MISSION

To build a reliable, scalable Experiment Platform that ties Poolside's research systems together, and improves how every model gets built.

## RESPONSIBILITIES

- Design and build robust backend services primarily using Python and Go to power our API Gateway and Experiment Platform.
- Partner closely with researchers, infrastructure teams, and agent platform engineers to translate research workflows into intuitive APIs, data models, and developer experiences.
- Drive adoption of agent-native research workflows by delivering the Experiment CLI.
- Integrate with existing research infrastructure and build dashboards to track adoption and usage metrics.

## SKILLS & EXPERIENCE

- Proven experience building production APIs, distributed systems, or platform infrastructure.
- Strong engineering fundamentals across backend architecture, API and database design, and operational excellence.
- Demonstrated ability to lead ambiguous, cross-functional initiatives, aligning stakeholders around a shared technical vision.
- Nice to have: Understanding of ML research workflows, including experiments, training runs, evaluations, checkpoints, configurations, datasets, and research iteration cycles.

## PROCESS

- Intro call with one of our Members of Engineering
- Technical Interview(s) with one of our Members of Engineering
- Team fit call with the People team
- Final interview with one of our Founding Engineers

## BENEFITS

- Fully remote work & flexible hours
- 37 days/year of vacation & holidays
- Health insurance allowance for you and dependents
- Company-provided equipment
- Wellbeing, always-be-learning and home office allowances
- Frequent team get togethers
- Great diverse & inclusive people-first culture

## About Poolside

## Company Overview
- **One-liner**: Poolside builds frontier AI foundation models and agentic systems for enterprise software engineering, deployed entirely within customer infrastructure.
- **Entity Type**: Private (Series B, $626M total funding)
- **Headquarters**: San Francisco, California, United States
- **Founded**: 2023
- **Founders**: Jason Warner (CEO & Co-founder), Eiso Kant (Co-CEO & Co-founder, CTO)

## Core Business
- **Primary industry/industries**: Artificial intelligence, enterprise software development
- **Target customers**: Large enterprises, government agencies, and organizations with complex, high-consequence software environments (multi-cloud, legacy systems, air-gapped networks)
- **Mission or purpose statement**: “For artificial general intelligence to drive abundance for humanity” – starting with software engineering as the strategic beachhead.

## Products & Services
- **Poolside Assistant**: Agent-based code assistance integrated into VS Code, Visual Studio, or any IDE supporting the Agent Client Protocol (ACP). Capable of planning, refactoring, testing, and incident analysis within the developer’s environment.
- **Poolside Chat**: Browser-based chat interface for code-related questions and agent interactions outside the IDE.
- **Poolside Agent CLI (`pool`)**: Command-line tool to run and manage agents in headless environments (CI/CD pipelines, automation workflows).
- **Poolside Console**: Browser-based administrative interface for governance, metrics, and system management.
- **APIs**: Programmatic access to integrate Poolside models, agents, and knowledge connectors into custom tools and automation.
- **Foundation Models**: Custom models trained using reinforcement learning from code execution feedback, optimized for long-horizon software tasks.
- **Data & Knowledge Connectors**: Integration with repositories, databases, data warehouses, and private corpora within strict security boundaries.
- **Forward Deployed Research Engineers (FDRE)**: Embedded experts who help customers design, build, and operate AI systems on-site.

## Market Standing
- **Valuation/Market Cap**: Not publicly disclosed
- **Key Metric**: Total funding $626 million as of October 2024, including a $500M Series B led by 19 investors [poolside.ai](https://www.poolside.ai/)
- **Notable Investors/Partners**: Series A led by Felicis, Xavier Niel, and others; Series B participants include 19 investors. Seed round led by Redpoint. [linkedin.com](https://www.linkedin.com/company/poolsideai)
- **Growth Signals**: Headcount grew 89.1% year-over-year to 165 employees; 19 active job postings (up 171% year-over-year). Operates across 20 countries. [linkedin.com](https://www.linkedin.com/company/poolsideai)

## Competitive Advantages
- **Security-first deployment**: Models run entirely within the customer’s VPC or on-premises, ensuring code and data never leave the customer’s control. Role-based access control for humans and agents by default. [poolside.ai](https://www.poolside.ai/)
- **Enterprise governance**: Auditability, policy enforcement, and traceability aligned to enterprise review boards and CISO requirements.
- **Outcome ownership model**: Poolside takes joint responsibility for adoption and business impact, rather than simply handing off models.
- **Specialization in high-consequence software**: Battle-tested in the toughest environments (defense, regulated industries), with a focus on long-horizon reasoning and multi-step planning.

## Strategic Focus
- **AGI through software**: The company believes the fastest path to human-level intelligence runs through mastering software engineering, then expanding to other domains.
- **Agentic organizations**: Helping enterprises become “agentic organizations” by embedding AI agents across the development lifecycle.
- **Continued model scaling**: Investing in foundation model research (pre-training, post-training, reinforcement learning) and infrastructure.
- **Global talent acquisition**: Growing a distributed workforce with hubs in the US, UK, France, Netherlands, and other European countries.

## Why Work Here
- **High employee satisfaction**: 5.0/5.0 rating on LinkedIn (based on 1 review) across work-life balance, compensation, culture, and career growth. [linkedin.com](https://www.linkedin.com/company/poolsideai)
- **Cutting-edge research**: Work alongside world-class talent at a frontier AI lab, solving the hardest problems in software engineering.
- **Hybrid/remote flexibility**: The company operates across 20 countries, suggesting a distributed-first approach with regional hubs.
- **Growth trajectory**: 89% headcount growth in the past year, with active hiring across engineering (agent harness, pre-training, reinforcement learning, design engineering) and support engineering roles.
- **Impactful mission**: Directly contribute to the development of AGI for abundance, starting with transformative enterprise software.

## Sources
1. [poolside.ai](https://www.poolside.ai/)
2. [linkedin.com](https://www.linkedin.com/company/poolsideai)
3. [docs.poolside.ai](https://docs.poolside.ai/get-started/overview)
4. [jobs.ashbyhq.com](https://jobs.ashbyhq.com/poolside)

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