Blockchain Jobs in North America

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Job Position Company Posted Location Salary Tags

Nexus

San Francisco, CA, United States

$98k - $106k

molecule.xyz

New York, NY, United States

$90k - $150k

Kraken

Canada

$127k - $203k

Kiln

New York, NY, United States

$87k - $87k

Chainlink Labs

United States

$122k - $150k

Chainlink Labs

New York, NY, United States

$98k - $120k

Molecule

New York, NY, United States

$84k - $120k

Newton

Toronto, Canada

$31k - $70k

Ledger

Reno, NV, United States

$105k - $164k

Anchorage Digital

United States

$68k - $72k

SkyTrade

Dallas, TX, United States

$55k - $65k

Pagos Consultants

Miami, FL, United States

$84k - $150k

Moonsong Labs

Boston, MA, United States

$90k - $180k

Polygon Labs

United States

$72k - $100k

Polygon Labs

United States

$72k - $90k

Nexus
$98k - $106k estimated
California San Francisco United States
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About Nexus

Nexus is building a world supercomputer by leveraging the latest advancements in AI, cryptography, engineering, and science. Our team of world-leading experts is developing and deploying the Nexus Layer 1 blockchain and Nexus zkVM (zero-knowledge virtual machine) in support of our mission to enable the Verifiable Internet.

Nexus raised $25M in Series A funding from Lightspeed, Pantera, Dragonfly, SV Angel, and more.

We are headquartered in San Francisco, and this role will be in-person with the rest of the Nexus team.

AI Software Engineer, Agents
We're building intelligent agents that can reason, plan, and take action in dynamic environments. As an AI Software Engineer on the Agents team, you'll help architect and deploy multi-step reasoning systems powered by LLMs, tools, and planning algorithms.

Responsibilities

  • Build frameworks for task planning, tool-use, and memory in LLM-powered agents.

  • Develop execution environments and APIs for agent actions and monitoring.

  • Collaborate closely with researchers to test and scale agent architectures.

  • Optimize agent behavior for reliability, latency, and cost.

  • Contribute to evaluations and benchmarks for autonomy, robustness, and alignment.

Requirements

  • Solid engineering skills in Python and experience deploying AI systems.

  • Deep understanding of LLMs, prompt engineering, and tool-augmented inference.

  • Familiarity with multi-agent systems, planning algorithms, or memory architectures.

  • Embrace AI as a core part of how you work, think, and build.

Bonus Points

  • Experience in robotics, game AI, or reinforcement learning.

  • Building agents for productivity, research assistance, or developer tools.

  • Background in cognitive architectures or decision-making systems.

Benefits

  • Competitive salary and generous equity compensation

  • Health insurance for employees and their dependents

  • Daily lunch and dinner provided at SF headquarters

  • Company-paid travel to events and conferences

Nexus is committed to diversity in our workforce and is proud to be an Equal Opportunity Employer (EEO).