"layer 4" Jobs

415 open tech roles matching “layer 4”, taken straight from company career pages — not reposted from other job boards. Most in demand right now: Python, AI/ML, Kubernetes. Every listing is re-checked daily and closed roles are removed.

Showing 20 of 415 results

Perplexity AI

Join the Connector Platform team to design and implement a unified data layer for Perplexity's agents.

Perplexity AI San Francisco Published 3 months ago
Flexible on stack
Preference Model

Join Preference Model as a Machine Learning Engineer to develop low-level reinforcement learning environments in a fast-paced startup.

Preference Model San Francisco Published 2 weeks ago
Flexible on stack
Fundamental

Join Fundamental as a Forward Deployed Full-Stack Engineer to build integration layers for enterprise AI solutions.

Fundamental San Francisco Published 7 months ago
Databricks

Join Databricks as a Senior Applied ML Engineer to optimize infrastructure and enhance serverless compute products.

Databricks San Francisco, California $16k–$21k/mo Published 1 month ago
Flexible on stack
Neuralink

Join Neuralink as a Software Engineer Intern to develop foundational infrastructure for groundbreaking brain-computer interface experiences.

Neuralink South San Francisco, California, United States $35–$35/hr Published 2 years ago
Flexible on stack
Lightfield

Join Lightfield as a Staff Software Engineer to build scalable data infrastructure for a fast-growing AI-native CRM platform.

Lightfield HQ: San Francisco Published 1 month ago
Flexible on stack
baseten

Join Baseten as an Infrastructure Software Engineer to build and maintain components of our ML inference platform for AI applications.

baseten San Francisco Published 1 year ago
Flexible on stack
Neuralink

Join Neuralink as a Software Engineer, ASIC, to build scalable infrastructure for cutting-edge brain interface technology.

Neuralink South San Francisco, California, United States $123k–$216k/yr Published 3 months ago
Flexible on stack
baseten

Join Baseten as a senior software engineer to develop cutting-edge AI training products and enhance user workflows.

baseten San Francisco Published 7 months ago
Flexible on stack
Cartesia

Build the platform behind Managed Agents, shaping the latency, reliability, and developer experience of real-time voice agents.

Cartesia *HQ - San Francisco, CA Published 4 months ago
AI-first team
baseten

Lead Baseten's relationships and market intelligence across the hardware and chip layer of the compute stack.

baseten San Francisco Published 3 days ago
Profound

Lead the Context team at Profound, focusing on technical leadership and people management in a fast-paced AI-driven environment.

Profound San Francisco, California $230k–$275k/yr Published 1 month ago
Flexible on stack
Snorkel AI

Join Snorkel AI as a Senior IT Platform & Automation Engineer to enhance internal infrastructure through automation and custom integrations.

Snorkel AI New York City, NY (Hybrid); San Francisco, CA (Hybrid) $150k–$220k/yr Published 3 weeks ago
Flexible on stack 70% coding
Coreweave

Join CoreWeave as a Senior Specialist Field Engineer to lead GPU cluster delivery and ensure high-performance AI workloads for customers.

Coreweave Sunnyvale, CA / San Francisco, CA / Bellevue, WA $188k–$275k/yr Published 3 months ago
Flexible on stack
Atoms

Join Atoms as a Senior Electrical Engineer to design cutting-edge hardware solutions for autonomous transport platforms.

Atoms San Francisco, CA $182k–$230k/yr Published 3 months ago
baseten

Join Baseten as a Forward Deployed Engineer to solve complex AI challenges for leading companies.

baseten San Francisco Published 3 weeks ago
Flexible on stack
Inferact

Join Inferact as a staff engineer to build distributed systems for AI inference at global scale.

Inferact San Francisco $200k–$400k/yr Published 7 months ago
Flexible on stack
baseten

Join Baseten as a Software Engineer to lead the identity and authorization team, building critical access systems for enterprise clients.

baseten San Francisco Published 1 week ago
Flexible on stack
Together AI

Design and deliver multi-petabyte storage systems for AI workloads at Together AI, optimizing performance and cost.

Together AI San Francisco $250k–$300k/yr Published 3 months ago
Flexible on stack
Anthropic

Own DRTM integration and platform security for AI infrastructure at Anthropic, collaborating with firmware and hardware teams.

Anthropic San Francisco, CA | New York City, NY | Seattle, WA $320k–$405k/yr Published 2 weeks ago
Flexible on stack