Zyphra · 2 months ago
Fullstack Engineer - Intelligent Agents & Systems
Palo Alto, CA
Full-time
Onsite
Mid LevelZyphra is an artificial intelligence company based in Palo Alto, California, and they are seeking a Fullstack Engineer to contribute to their Agentic Systems and Interaction projects. The role involves building a next-generation desktop and browser-based agent that can autonomously navigate the web and interact with various systems while focusing on frontend interfaces and backend services.
Artificial Intelligence (AI)Cloud ComputingMachine LearningSoftware
Responsibilities
Design and implementation of different agentic system designs capable of interacting with browsers, operating systems, enterprise filesystems, collaborations tools among others
Building search and retrieval pipelines across large-scale structured and unstructured data
Build the backend layer for RAG systems and other information context management systems required for agents to operate
Integrating LLMs, vision models, reinforcement learning, and scaffolding frameworks for autonomous, multi-step decision-making
Engineering secure virtualized runtimes and backend services for agent execution
What matters most is your drive to build production-grade software
We value velocity and curiosity, especially in fast-moving and ambiguous environments
Qualification
Required
Proficiency in Python and a deep understanding of building and debugging complex end-to-end applications
Experience working with SaaS environment and production workloads, web interfaces, databases, search engines and queuing systems
Experience developing browser extensions or automation tools with fine-grained control over the browser (mouse, tabs, DOM)
Understanding of LLMs, prompting techniques, and orchestration frameworks for multi-step reasoning
Ability to work across the whole stack from web interfaces to control plane and data infrastructure like queuing systems, databases and search indexes
Experience designing or working with secure and virtualized execution environments
Excellent communication and collaboration skills across product, research, and engineering teams
Preferred
Experience building or integrating retrieval-augmented generation (RAG) systems
Experience working with enterprise security and compliance frameworks (e.g., SOC 2)
Familiarity with vector databases and large-scale document indexing
Knowledge of web automation tools and headless browser environments (e.g, Puppeteer, Playwright)
Understanding of sandboxed or containerized compute environments with strict access controls
Comfort designing user-facing agentic workflows and reasoning systems that span multiple modalities (text, vision, actions)
Experience using and fine-tuning models for screen reading, OCR, or UI understanding
Background in HCI or interest in building intuitive agent interfaces that extend human capabilities
Machine Learning experience as double bonus
Benefits
Comprehensive medical, dental, vision, and FSA plans
Competitive compensation and 401(k)
Relocation and immigration support on a case-by-case basis
On-site meals prepared by a dedicated culinary team; Thursday Happy Hours
Company
Zyphra
Zyphra is superintelligence research and product company based in San Francisco, California.
Founded in 2021
51-200 employees
H1B Sponsorship
Zyphra has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (1)
Funding
Current Stage
Growth StageTotal Funding
$100M2025-06-09Series A· $100M
2023-06-09Seed
2021-11-18Pre Seed
Recent News
2025-11-30
2025-11-27
Company data provided by crunchbase