Software Engineer, ML Infrastructure (MDX)
DoorDashSoftware Engineer, ML Infrastructure (MDX)
DoorDashLocation
San Francisco, CA, Sunnyvale, CA, Seattle, WA
Type
Full-time
Posted
10/15/2026
Compensation
$130,600 - $192,000 per year
Job description
The role is focused on building the agentic layer of DoorDash's machine learning infrastructure, enabling ML engineers to accelerate their workflows. The MDX team works across the full ML lifecycle, including feature engineering, training, and deployment. The successful candidate will design and implement systems that support ML development for DoorDash, Wolt, and Deliveroo. This position is ideal for an engineer with a strong backend foundation who is eager to apply AI agents to engineering workflows.
Requirements
- B.S., M.S., or PhD in Computer Science or equivalent.
- 2+ years of industry experience in software engineering.
- Hands-on experience building ML infrastructure in production.
- Strong backend engineering fundamentals, especially in Python and distributed systems.
- Experience operating systems in production, including testing and observability.
- A good understanding of how ML engineers and data scientists work.
- Ability to take ambiguous problems from idea to production.
- Proficiency in using AI coding tools across the software development lifecycle.
Responsibilities
- Build agentic systems that increase the velocity of ML development.
- Design and implement infrastructure for agents to propose and evaluate modeling experiments.
- Build agentic developer support for the ML lifecycle.
- Develop evaluation and observability for agent behavior.
- Work with production standards in mind, including reliability and monitoring.
- Partner closely with ML engineers, data scientists, and platform teams to enhance productivity.
- Grow quickly in a fast-moving area and shape how agents are used in ML systems.
H-1B filing history
Public USCIS petition and DOL LCA counts · latest USCIS FY2026, LCA FY2026
Filing entity: Doordash Inc
As of Aug 23, 2026
Initial approvals
92
FY2026
Approval rate
97.5%
FY2026
LCA certified
140
FY2026
Entry-level share
20.7%
FY2026
Initial approvals YoY
+1%
Trend
LCA certified YoY
-74%
Trend
Initial approvals by fiscal year
Approval rate by fiscal year
Continuing vs initial approvals
LCA certified positions by quarter
LCA certified positions by fiscal year
Based on public USCIS and DOL filings; not a sponsorship guarantee.
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