Job overview
- Location
- San Francisco, California, United States
- Job type
- Full-time
- Work mode
- On-site
- Salary
- Not disclosed
- Category
- IT & Technology
- Posted
- Valid through
At a glance by CareerCola
- Company
- Cursor
- Role
- Software Engineer, Agent Harness
- Location
- San Francisco, California, United States
- Employment type
- Full-time
- Work mode
- On-site
- Category
- IT & Technology
- Posted
- 22 Sep 2026
- Valid through
- 22 Oct 2026
About the role
Cursor | Employment type: FULL_TIME | Posted on CareerCola: 2026-09-22
Official listing: https://jobs.ashbyhq.com/cursor/6e6f5bc2-eb32-40e2-bba9-cfa56479600d
Description
Our mission is to automate coding. The first step in our journey is to build the best tool for professional programmers, using a combination of inventive research, design, and engineering. Our organization is very flat, and our team is small and talent dense. We particularly like people who are truth-seeking, passionate, and creative. We enjoy spirited debate, crazy ideas, and shipping code.
About the Role
As a Software Engineer on the Agent Harness team at SpaceXAI, you’ll build the core agent behavior and capabilities that power agent experiences across Cursor products. This spans agent orchestration, tools, guardrails, and model behavior tuning—designed as a platform that SpaceXAI engineers can extend and depend on.
Your work will also define the default Cursor agent experience (”Auto”), where users trust us to make the right model choices under real-world constraints.
Example projects include:
Advancing the agent harness (agent loop, tools, prompts, execution environment, capabilities) used across Cursor products. This would shape and empower experiences like multi-agent coordination.
Improving the default Cursor agent experience (the “Auto” model setting): making smart model choices based on user needs, model capabilities, and cost appetite.
Shaping the default Cursor agent’s personality.
Launching new models on Cursor end-to-end — partnering with foundational model providers and our research team on integration, evaluation, and rollout.
You may be a fit if
You have built complex agentic products or infrastructure.
You have strong software engineering fundamentals and enjoy shipping production systems.
You have taste and strong opinions on model and agent behaviors. You stay up-to-date and informed on emerging research and industry trends.
You make good calls in the gray area: weighing data, user experience, and product taste when there isn’t a single “right” answer.
Experience building eval datasets or frameworks to understand and improve the performance of AI systems is a plus.
Experience building products or tools used by other engineers is a plus.
Applying
If there appears to be a fit, we'll reach to schedule 2-3 short technicals. After, we'll schedule an onsite in our office, where you'll work on a small project, discuss ideas, and meet the team.
#LI-DNI
Skills
- AI
- AI agents
- Software Engineering
- Airport Infrastructure
About Cursor
Related jobs
SAP RE-FX
Capgemini
Salary Not disclosed
Locations: Pune, Bangalore, Bengaluru, Mumbai, India. Choosing Capgemini means choosing a company where you will be empowered to shape your career in the...
- SAP RE-FX
- SAP FI
- SAP FI-AA
- Lease Management
SAP ABAP EWM Consultant
Capgemini
Salary Not disclosed
Locations: Bangalore, Bengaluru, Mumbai, Pune, India. Choosing Capgemini means choosing a company where you will be empowered to shape your career in the...
- SAP ABAP
- SAP EWM
- S/4HANA
- OO ABAP
Vertex AI
Capgemini
Salary Not disclosed
Locations: Navi Mumbai, Mumbai, Hyderabad, Chennai, Pune, Bangalore, Bengaluru, India. Choosing Capgemini means choosing a company where you will be...
- Python
- Machine Learning
- Google Cloud Platform
- Vertex AI
Salary Not disclosed
Description Does the thought of improving one of the world’s most complex logistic systems inspire you? Is your passion to sift through hundreds of systems...
Salary Not disclosed
Minimum qualifications Bachelor's degree in Computer Science, Information Systems, a related technical field, or equivalent practical experience. 5 years of...
Salary Not disclosed
NVIDIA is looking for a Machine Learning Engineer to join the GPU accelerated Apache Spark team. Apache Spark is the most popular data processing engine in...