Senior Software Engineer

Jack & Jill; San Francisco (CA); On-site; USD 150,000 - 180,000; Full time

Job summary

A pioneering research lab is seeking a Senior Software Engineer focused on building next-generation conversational AI interfaces. The ideal candidate will have deep expertise in Python and experience with modern LLM frameworks. This position involves ownership of end-to-end development of agentic systems and collaboration with cross-functional teams to create scalable real-time interfaces. Join a well-funded startup at the forefront of the AI landscape with high-impact opportunities that shape the future of human-computer interaction.

Qualifications

• Extensive experience building complex, production-ready agentic systems.
• Proven track record of setting technical direction and shipping polished software.
• Ability to communicate effectively with both technical and non-technical stakeholders.

Responsibilities

• Own the end-to-end development and delivery of new agentic systems.
• Partner with cross-functional teams to design real-time interfaces.
• Ensure scalability and observability of production-grade LLM systems.

Skills

Deep expertise in Python

Experience with LLM frameworks

Strong architectural intuition

Ability to communicate complex concepts

Job description

Senior Software Engineer (Agentic Systems)

Join a pioneering research lab as a technical lead focused on building the next generation of conversational AI interfaces. You will architect and deploy production‑grade agentic systems, integrating long‑term memory and complex task management. This role is essential for creating reliable, real‑time interactive systems that bridge the gap between human communication and machine intelligence.

Company Description

High‑growth AI research lab

Location

San Francisco, USA

Why this role is remarkable

• Lead the development of sophisticated agentic features like RAG and asynchronous task management within a high‑performance engineering culture.
• Join a well‑funded Series B startup backed by top‑tier global venture capital firms at the forefront of the AI wave.
• High‑impact opportunity to shape the future of human‑computer interaction by building systems that act with unprecedented empathy and reliability.

What you will do

• Own the end‑to‑end development and delivery of new agentic systems, including job scheduling and autonomous memory management.
• Partner with cross‑functional research and product teams to design real‑time interfaces that respond to complex user inputs.
• Ensure the scalability and observability of production‑grade LLM systems while contributing across the full technical stack.

The ideal candidate

• Deep expertise in Python and extensive experience building complex, production‑ready agentic systems using modern LLM frameworks.
• A senior engineering mindset with a proven track record of setting technical direction and shipping polished software in ambiguous environments.
• Strong architectural intuition and the ability to communicate complex technical concepts with clarity to both technical and non‑technical stakeholders.

Next Steps

• Step 1. Visit our website.
• Step 2. Click 'Talk to Jack'.
• Step 3. Talk to Jack so he can understand your experience and ambitions.
• Step 4. Jack will make sure Jill (the AI agent working for the company) considers you for this role.
• Step 5. If Jill thinks you're a great fit and her client wants to meet you, they will make the introduction.
• Step 6. If not, Jack will find you excellent alternatives. All for free.