---
title: 'Dataframe SDK Engineer at Rerun'
canonical: 'https://feeny.ai/job/dataframe-sdk-engineer-rerun-remote-nz88s1caa8d3'
type: 'job'
last_seen: '2026-09-07'
---

# Dataframe SDK Engineer at Rerun

- **Company:** Rerun
- **Location:** Remote
- **Employment:** full-time
- **Work type:** remote
- **Posted:** 2025-10-30
- **Last confirmed live:** 2026-09-07
- **Apply:** https://jobs.ashbyhq.com/rerun/d4fc6d62-2690-42e6-a321-16926233fa6d

## Job description

At Rerun, we’re building the data stack for Physical AI. Large parts of the physical-world economy will be transformed by intelligent products, and we're developing the data infrastructure and tools that make it possible.

Our open-source project focuses on logging and visualizing multimodal data and is already loved by some of the best teams in the world. We’re now building our commercial platform — managed infrastructure for ingesting, storing, analyzing, and building training data pipelines for Physical AI at scale.

We’ve built an exceptionally senior, talented engineering team. Now we’re looking for a DataFrame SDK Engineer to own and expand the developer experience for querying and working with Rerun’s data — improving performance, ergonomics, and integrations across our Python and Rust SDKs. This role sits at the intersection of API design, query performance, and developer experience, and will have a direct impact on how customers adopt and build on top of Rerun Cloud.

## WHAT YOU’LL DO

- Build a world-class query and dataframe SDK that makes exploring data in Rerun intuitive and powerful
- Work across Python, Rust, and gRPC layers to add new operations and integrate with our distributed backend services
- Push performance improvements through better query planning, push-down logic, and dataset versioning
- Contribute documentation and examples that make the SDK easy to adopt
- Collaborate with other engineers on dataset creation, versioning, and catalog interfaces

## WE’D LOVE IT IF YOU HAVE

- Experience building or contributing to Python data APIs, ideally dataframe-style APIs (e.g. Pandas, Polars, Arrow, Snowflake, or similar)
- Strong experience in Python and Rust, or a language-agnostic background with proven ability and motivation to pick up Rust rapidly.
- Experience writing high-performance software and debugging across Python, Rust, gRPC, and distributed systems
- Proven ability to take projects from start to finish with limited hand-holding — you’re comfortable owning a slice of the stack and iterating quickly
- Empathy for developers and a sense of taste for clean, ergonomic API design

## BONUS POINTS IT IF YOU HAVE

- Experience with Apache Datafusion or Apache Arrow
- Familiarity with query planners, compilers, or execution engines
- Experience working on data-oriented or multimodal data systems (e.g., robotics, physics modeling, or simulation pipelines)
- Knowledge of async Rust or similar concurrent programming models

## HOW WE WORK AT RERUN

- This role is based in the Bay Area, hybrid, with 3 days a week in our SF office.
- We're a remote company headquartered in Stockholm, Sweden, with a growing hub in San Francisco.
- We meet up in person for a week roughly once a quarter.
- We're spread across European and US time zones. Rather than one fixed window, each team keeps a few hours of daily overlap that fits where its members are, and every role posting says what that looks like.
- We've put together an uncommonly talented tech team, value agency and helpfulness highly, and expect everyone to take broad responsibility for what they build.
- We offer competitive cash and equity compensation, six weeks paid vacation, and whatever hardware and software you need to do your job.
- Parental leave: 12 weeks full pay for every parent, alongside your local statutory leave entitlements.

## About Rerun

## Company Overview
- **One-liner**: Rerun builds the unified data layer for Physical AI, providing an open-source SDK, time-series database, and visualizer for multi-rate, multimodal data used in robotics, spatial computing, and simulation.
- **Entity Type**: Private (Seed stage)
- **Headquarters**: Stockholm, Sweden
- **Founded**: 2022
- **Founders**: Nikolaus West (CEO), Emil Ernerfeldt (CTO), Moritz Schiebold (COO)

## Core Business
- **Primary Industry**: Software Development / Data Infrastructure for Physical AI (robotics, autonomous vehicles, drones, spatial computing)
- **Target Customers**: B2B — engineering teams at companies building Physical AI (robotics, autonomous systems, simulation) and researchers in embodied AI
- **Mission/Purpose**: To build the multimodal data stack for embodied AI, enabling teams to ingest, visualize, query, transform, and train on multi-rate, multimodal data from teleop, fleet logs, human-data rigs, and simulation — all from a single columnar store.

## Products & Services
- **Rerun SDK (Open Source)**: A logging SDK (Python, Rust, C++) for multi-rate, multimodal data. Logs are stored as column-chunks in `.rrd` files, purpose-built for physical data. Enables real-time visualization and debugging.
- **Rerun Viewer**: A cross-platform visualizer for exploring, annotating, and debugging temporal and multimodal data. Supports custom views and plugins for every stage of the pipeline.
- **Rerun Hub (Commercial)**: A managed data catalog and storage engine. Provides byte-range indexing, SQL/dataframe querying across recordings, column-aware and video-codec-aware dataloading for training, and transform capabilities (add derived columns, evolve schemas without history-breaking). Turns object stores into a queryable, streamable foundation.
- **Rerun Query Engine**: Full dataframe or SQL queries over any robotics data, including post-processing and annotation capabilities.

## Market Standing
- **Valuation**: Not publicly disclosed
- **Total Funding**: $20.4M
  - Pre-Seed (June 2022): $3.4M from 17 investors
  - Seed (March 2025): $17M led by Point Nine, with participation from 9 other investors
- **Key Metric**: $20.4M total funding
- **Notable Investors/Partners**: Point Nine (lead investor in Seed round), Costanoa Ventures, and 17+ other angel and institutional investors from the Pre-Seed round.
- **Growth Signals**:
  - 52% employee headcount growth year-over-year (31 employees as of mid-2025, up from ~5 in 2022)
  - 20,020 LinkedIn followers (+39.4% yearly growth)
  - Operating in 14 countries across Europe and North America
  - Open source project with active community contributions; stewards of open source tools the industry relies on
  - Commercial product (Rerun Hub) launched in 2025, now in active use by teams building Physical AI

## Competitive Advantages
- **Unified Data Layer**: Combines logging, visualization, querying, transformation, and training into one columnar store — eliminating the need for export jobs, stale copies, or multiple disparate tools.
- **Purpose-Built for Physical AI**: Designed from the ground up for multi-rate, multimodal data (e.g., camera feeds, LiDAR, IMU, control signals) — not a bolt-on for a general-purpose database.
- **Open Source Core**: The SDK and Viewer are open source (MIT/Apache), fostering community adoption, trust, and contributions from the robotics and AI research communities.
- **SQL/Dataframe Querying on Recordings**: Allows users to run complex queries across the entire catalog, down to individual time ranges and values inside recordings — a unique capability for physical data.
- **Column-Chunk Storage**: Efficient for multi-rate data, enabling fast retrieval and streaming without full-file downloads.

## Strategic Focus
- **Scaling Rerun Hub**: Commercializing the managed data catalog and storage engine to serve enterprise Physical AI teams.
- **Building the Data Loop**: Enabling seamless data flow from teleop/fleet logs through visualization, curation, and directly into training loops — "train without an export step."
- **Open Source Community Growth**: Continuing to invest in the open source ecosystem, contributing to and maintaining tools the robotics community depends on.
- **Talent Acquisition**: Actively hiring across engineering (Rust backend, infrastructure, dataframe SDK), forward-deployed engineering, and strategic operations to support product and customer growth.

## Why Work Here
- **Mission-Driven Impact**: Build the foundational data infrastructure that will power the next generation of Physical AI — robots, drones, autonomous vehicles, and spatial computing.
- **Remote-First & Distributed**: Remote-first company with founders based in Stockholm, Sweden, and teammates across Europe, the US East and West Coasts, and Canada. In-person team gatherings about once per quarter for a full week.
- **Engineering Culture**: High bar for quality ("never settle for less than great"), curiosity, honesty, and empathy. Active contributors to open source projects the industry relies on.
- **Growth Trajectory**: Early-stage (Seed) with significant funding, rapid headcount growth, and a clear product-market fit signal — offers opportunity for outsized impact and career growth.
- **Cross-Functional Collaboration**: Small, high-leverage team (31 people) where engineers work closely with founders, design, and strategy — direct exposure to company-building.
- **Autonomy & Ownership**: Engineers own meaningful parts of the stack (Rust backend, SDKs, infrastructure, data layer) and shape product direction.
- **Open Source Contribution**: Chance to work on a widely-used open source project and contribute to the broader robotics/AI ecosystem.

## Sources
1. [rerun.io](https://rerun.io/)
2. [LinkedIn Company Page](https://www.linkedin.com/company/rerun-io/)
3. [Rerun Careers Page](https://jobs.ashbyhq.com/rerun)
4. [Rerun Careers Page (official)](https://rerun.io/careers)
5. [Built In - Rerun Profile](https://builtin.com/company/rerun)
6. [TechCrunch - Rerun Raises $17M](https://techcrunch.com/2025/03/20/reruns-open-source-ai-platform-for-robots-drones-and-cars-revs-up-with-17m-seed/)
7. [FinSMEs - Rerun Raises $17M](https://www.finsmes.com/2025/03/rerun-raises-17m-in-seed-funding.html)
8. [GlobeNewswire - Rerun Raises $17M](https://www.globenewswire.com/news-release/2025/03/20/2971234/0/en/Rerun-Raises-17M-to-Build-the-Data-Infrastructure-Powering-the-Physical-AI-Revolution.html)

## Other roles at Rerun

- [Events Marketing Manager](https://feeny.ai/job/events-marketing-manager-rerun-san-francisco-em5q4npe633v) — San Francisco, CA
- [Talent Partner](https://feeny.ai/job/talent-partner-rerun-united-kingdom-ireland-east-coast-wrwnzx22rkaj) — United Kingdom / Ireland / East Coast
- [Strategic Operations, Founder’s Office](https://feeny.ai/job/strategic-operations-founder-s-office-rerun-stockholm-hts719c90xre) — Stockholm, Sweden
- [Forward Deployed Engineer](https://feeny.ai/job/forward-deployed-engineer-rerun-us-west-coast-d5cwnmwzrtdc) — US West Coast
- [Software Engineer, Infrastructure](https://feeny.ai/job/software-engineer-infrastructure-rerun-remote-h8rbtaw5svmz)
- [Software Engineer (Rust) - Backend](https://feeny.ai/job/software-engineer-rust-backend-rerun-remote-hhdct37h8ad8)