Fullstack Engineer
- Location
- San Francisco, CA
- Listed
- Today
Your Impact
- Onyx is a popular open source project with hundreds of thousands of users.
- The project has over 13K stars and over 3K community members across Slack and Discord (these stats may already be out of date when you read this).
- You’ll have the opportunity to build in the open and your work may be used by millions of people in the future.
About the Role
As an early hire, you'll play a pivotal role in shaping the core product. Help us become the biggest “GenAI for work” application in the world. This is an in-person role based in San Francisco, CA.
You’ll be
- Building a consumer grade UI experience for the GenAI Chat, Enterprise Search, Agents, and Admin features
- Extending the backend functionalities and APIs (see below)
- Improving the flexibility and quality of the search pipeline, building a semantic understanding of customer organizations, extending the current permission/access controls, and expanding the knowledge curation features
- Implementing the latest approaches in NLP research like LLM based Knowledge Graphs, StructRAG, Agent/Deep-Research, etc. to increase the range of questions the system can answer (AI / deep learning experience not required)
- Own the entire development cycle of new features, from conception to production
- Collaborate with the founders and team to shape and influence the direction of the product and contribute to the engineering strategy
You’ll Be Successful If You
- Have 1-5 years (or more) of software engineering experience building real-world applications
- Know Typescript/React/NextJS, Python, Relational DBs (Postgres)
- Enjoy working in a fast moving startup with low amounts of process
- Have excellent communication skills, with a strong ability to collaborate with others (both teammates and external customers)
Bonus Points
- Experience with Docker/Kubernetes, cloud technologies (AWS, GCP, Azure), and on-prem/cloud deployments
- Experience (or even just interest) in AI (NLP, Deep Learning, GenAI) and information retrieval
- Previous founder or early engineer at seed/series-A startup
About the Interview
- Non-technical Phone Screen (30 mins)
- Practical Coding Interview (45 mins)
- Work Trial (2-3 days in person, fully covered + compensated)
About Onyx
Onyx is the open source GenAI platform connected to your company's docs, apps, and people. We ingest and sync from all sources of information (Google Drive, Slack, GitHub, Confluence, Salesforce, etc.) to provide a centralized place for users to ask about anything. Imagine your most knowledgeable co-workers, all-rolled into one, and available 24/7!
We believe that every modern team will be adopting knowledge enhanced GenAI within the next 5 years and it is our goal to bring this technology to all the teams of the world.
We raised a $10M seed coming out of YCombinator, backed by Khosla Ventures (early/seed backers of OpenAI, Doordash, GitLab, etc.) and First Round Capital (Notion, Square, Roblox, etc.). Our customers include some of the best teams in the world like Netflix, Ramp, Applied Intuition and dozens of others. We also have incredible open source users like Roku, Zendesk, L3Harris and more.
From Onyx Solar Network, Inc.'s careers page, first listed on Rolev.ai on November 12, 2026. Rolev.ai is not the employer.
How Rolev.ai helps with this application
Rolev.ai is a job search and application tool for US job seekers. For this Fullstack Engineer role at Onyx Solar Network, Inc., it shows how your resume fits, tailors your resume to the posting, and prepares the application for you to review.
See how you fit
Openings from employer career sites are ranked against your whole resume—and searchable inside Claude, ChatGPT, and Cursor via Rolev.ai MCP.
Tailor without inventing
Every change to your resume is checked against your original. New experience goes in only with your yes—zero fabricated claims.
Draft the full kit
Tailored and Full Match resumes, role-specific cover letters, and answers to employer screening questions are prepared in seconds.
1-Click Extension Autofill
The Chrome extension fills the employer's Greenhouse, Workday, Lever, or Ashby form in 1 click. You review it and press Submit.
Similar roles
Common questions
Where is the Fullstack Engineer job at Onyx Solar Network, Inc. located?
This Fullstack Engineer position at Onyx Solar Network, Inc. is located in San Francisco, CA. Always check Onyx Solar Network, Inc.'s application page for specific state eligibility or relocation policies.
How do I apply for the Fullstack Engineer position at Onyx Solar Network, Inc.?
This listing links directly to Onyx Solar Network, Inc.'s Ashby application page. You can apply directly on Onyx Solar Network, Inc.'s site, or use Rolev.ai to check your resume fit, generate a zero-hallucination tailored resume and cover letter for this posting, and autofill the Ashby application form in 1 click with the Rolev.ai Chrome extension. You always review the form and press Submit yourself.