Software Engineering

Character.AI · Redwood City, CA · Remote · Dec 2025

Build scalable backend systems powering millions of interactive AI experiences.

Character.AI · Redwood City, CA · Remote · Oct 2025

Scale personalized AI to billions by reimagining virtual currency and subscriptions.

Character.AI · Redwood City, CA · Remote · Dec 2025

Build applied ML systems for discovery, recommendation, and search.

Character.AI · Redwood City, CA · Remote · Oct 2025

Build the future of open-ended interactions between people and intelligent agents.

Modal Labs · San Francisco +1 · Remote · Aug 2025

Build the SDK powering instant GPU access and production AI workloads.

Modal Labs · Stockholm · Onsite · Oct 7

Build core infrastructure powering AI workloads like inference and fine-tuning.

Modal Labs · New York +1 · Onsite · Apr 21

Push language and diffusion models toward higher throughput and lower latency.

Modal Labs · New York · Onsite · May 18

Own Modal's marketing and docs sites as high-quality engineering systems.

Modal Labs · San Francisco +1 · Onsite · Sep 22

Own the machines layer powering every Function, Sandbox, and training job.

Modal Labs · San Francisco +2 · Onsite · Sep 22

Build distributed object storage backing every image, volume, and checkpoint.

Modal Labs · New York +1 · Onsite · Oct 2024

Design and maintain high-performance systems behind Modal's serverless platform.

Modal Labs · San Francisco +1 · Onsite · Sep 22

Lead the distributed object storage behind every Modal container and checkpoint.

Modal Labs · Stockholm · Onsite · Jan 12

Build novel high-performance systems powering our serverless platform at scale.

Pinecone · New York City · Remote · Aug 5

Design next-gen knowledge retrieval system for enterprise agentic AI applications.

Pinecone · US Remote · Remote · Aug 5

Design and build core components of next-gen knowledge retrieval system

Pinecone · New York City · Remote · Jun 15

Build real-time distributed database features powering AI applications.

Rhoda AI · Mountain View · Onsite · Sep 18

Own training performance end-to-end for generalist intelligent robots.

Rhoda AI · Mountain View · Onsite · May 18

Build orchestration powering large-scale training for generalist robots.

Cognition · San Francisco +1 · Onsite · Aug 6

Build core agent infrastructure powering Devin's long-horizon task execution.

Cognition · San Francisco +1 · Onsite · Aug 6

Own features end-to-end for Devin, the first AI software engineer.

Cognition · San Francisco +1 · Onsite · Aug 6

Own sandboxed compute powering Devin's long-horizon tasks at scale.

Sarvam · Bengaluru · Onsite · Sep 21

Own frontend architecture for complex, high-scale AI products.

UK AI Security Institute · London, UK +1 · Onsite · Apr 23

Build shared platform enabling AI chem-bio risk research.

Prime Intellect · San Francisco +1 · Remote · Sep 17

Build and scale core storage infrastructure for production systems.

Prime Intellect · San Francisco · Onsite · Jul 8

Help build and scale the platform that trains next-generation models.

Prime Intellect · San Francisco · Onsite · Oct 9

Own the platform powering open frontier AI research and products.

Prime Intellect · San Francisco +1 · Remote · Jul 8

Design optimal GPU cluster architectures scaling from 100 to 10,000+ GPUs.

Prime Intellect · San Francisco · Onsite · Sep 17

Help build and evolve the Prime Agent product for real users.

Prime Intellect · San Francisco · Onsite · Jul 8

Drive high-impact security work as a core member of the technical staff.

Prime Intellect · San Francisco +1 · Remote · Sep 17

Own operational readiness of physical infrastructure behind our GPU cloud.