React Jobs at Nexus

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, Product

As an AI Software Engineer on the Product team, you will play a pivotal role in transforming cutting-edge AI research into production-ready features that deliver tangible value to users. You’ll work at the intersection of engineering, product, and research to rapidly prototype, test, and launch AI-powered experiences. This role is ideal for someone who thrives in fast-paced environments, loves iterating with users in mind, and is passionate about delivering delightful, intelligent products.

Responsibilities

• Collaborate with product managers, designers, and researchers to define and ship AI-first features.

• Prototype and iterate on intelligent workflows that solve real user problems.

• Integrate LLMs and other AI systems into end-user applications via APIs and internal tooling.

• Optimize inference pipelines for latency, cost, and user experience.

• Use data-driven methods to evaluate and improve product performance and user impact.
  

Requirements

• Strong engineering foundation with experience building user-facing products.

• Proficiency in Python and frontend/backend development (e.g., React, FastAPI, Node.js).

• Familiarity with deploying and integrating LLMs or AI APIs in production.

• Ability to rapidly prototype, experiment, and iterate based on user feedback.

• Strong communication skills and comfort working cross-functionally.

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

Bonus Points

• Experience in product engineering at an AI-native or fast-scaling startup.

• Familiarity with A/B testing frameworks and product analytics tools.

• Understanding of user behavior in AI-assisted interfaces (e.g., copilots, chat, search).

• Background in UX design or a strong product sense.
  

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).