Agentic AI
Staff Platform Engineer
- Experience7 - 15 years — as a platform engineer (now at Staff level and ideally with Agentic AI)
- Compensation$200K - $250K
- VisaOpen to visa transfers (e.g. OPT, H1B transfers)
- Visa (additional)Existing H1B transfer, TN-1 but no net new H1Bs
- Work policyIn-person 2 days per week at our headquarters in Redwood City, CA
- LocationRedwood City, CA
- TypeFull-time
The Opportunity
The company is building the next generation of agentic AI infrastructure. Backed by Norwest, True Ventures, and Shasta Ventures, we develop AI agents that automate complex business workflows, enhance employee productivity, and enable seamless human-AI collaboration at scale. Harper by the company was named a 2025 Top HR Product by HR Executive, while the company was also ranked #2 on Fast Company’s 2026 list of the Most Innovative Companies in Human Resources.
We’re looking for staff-level engineers who combine strong distributed systems expertise with deep practical understanding of AI workflows and harness engineering – engineers who know how to make GenAI systems work reliably in production.
What You'll Build Scalable agentic orchestration frameworks that integrate seamlessly with enterprise systems, enabling no-code automation across complex workflows
Pioneering memory architectures and retrieval systems that overcome traditional RAG limits, giving agents persistent context across multi-step processes
AI harnesses that improve the reliability, evaluation, observability, and reasoning quality of LLM-powered systems – including prompt optimisation, hallucination reduction, and LLM context management
Domain-optimised reasoning LLMs that unlock new reasoning capabilities for nuanced business scenarios
Backend infrastructure powering multi-agent workflows, human-in-the-loop systems, and intuitive UIs for seamless human-AI collaboration on documents and processes
Tooling that enables rapid experimentation, evaluation, and deployment of AI workflows at scale
About the Company
The company is the Agentic HR platform for enterprise teams and maker of Harper, the world’s first AI HR generalist. We create AI agents that streamline business processes, elevate the employee experience, and free teams to focus on truly strategic work. Backed by top-tier VCs, the company has raised $55M in venture funding from Norwest Venture Partners, True Ventures, and Shasta Ventures.
Harper was recently awarded Top HR Product of 2025 by HR Executive, recognizing how we revolutionize service delivery by combining deep domain expertise with unparalleled functional capabilities
Founded in 2021, team size around 35 employees.
About the Team
Our high-velocity team moves fast, thinks big, and constantly pushes the boundaries of what's possible at the frontier of AI technology. We work hard, but maintain a deeply collaborative and fun-loving atmosphere—from virtual lunches and draw battles to cooking classes that bring our distributed team together. While our headquarters is in Redwood City, CA and also have an office in New York City, we operate as a hybrid/remote team across the US.
Tech Stack
Python, OpenAI API, Claude API, Pinecone, Claude Code/Codex, Kafka, MongoDB, Java (nice to have), AWS