ML & Agentic Systems Engineer [IC4]

About the Position

We are looking for a ML & Agentic Systems Engineer [IC4] to join our team at Sourcegraph. Our mission is to bring clarity and control to the world's most complex codebases. With Code Search, Deep Search, MCP, and Agentic Batch Changes, we deliver on that mission today - giving engineering teams and their AI tools the cross-repo context to navigate massive codebases with confidence, and the ability to make changes across hundreds of repositories at once.

Responsibilities

• Agentic systems: Design and harden the multi-step, tool-using agent loops behind current and new agentic experiences.
• Pragmatic use of evaluations: Craft agentic products by determining when a change actually helped.
• Models: Decide which models to run where, drive upgrades, and fine-tune our own when necessary.
• Retrieval and context engineering: Push on how we ground models in a customer's code to make answers more accurate and verifiable.
• Cost and latency: Treat cost and latency as product features, and profile, distill, cache, and right-size models to ship ambitious features sustainably.

Requirements

• Machine Learning: Personally owned a production model lifecycle.
• Evaluation: Strong evaluation judgment with the ability to build representative datasets and meaningful baselines.
• Agent Systems: Fluently build agents and design multi-step agentic systems.
• Software Engineering: Strong software engineering skills to ship production services.
• Model Selection: Experience in selecting, upgrading, and training models.
• Retrieval and Context Engineering: Experience with retrieval, ranking, embeddings, or search relevance.
• Cost and Latency Management: Treat cost and latency as product constraints and make measured tradeoffs.

Nice to Have

• Experience with LLM-powered or agentic developer-facing products.
• Experience in fine-tuning, distilling, or training models to meet cost, latency, or quality targets.
• Experience working directly with enterprise customers.
• Experience mentoring or up-leveling engineers.

We Offer

• Competitive salary ranging from $88,000 to $176,000 USD based on location zone.
• Meaningful equity.
• Generous perks & benefits.

About the Company

Sourcegraph gives engineering organizations full visibility across their systems, precise context for their agents, and the ability to execute coordinated code changes at scale. Companies like Stripe, Reddit, and Leidos rely on Sourcegraph to ship faster and with higher quality. We're backed by a16z, Sequoia, and Redpoint, and proud to operate as a globally distributed team that values high agency, direct communication, and customer love.

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If you want to build the infrastructure that lets every engineering team - and every agent they deploy - operate on their codebase with confidence, join us.

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