Job brief: Staff Machine Learning Engineer, Ads Foundational Representations

What JoRoute checked · Checked by JoRoute

• Listed on Reddit's own job board. JoRoute does not take listings from job ads or recruiters.
• First seen by JoRoute 2026-11-12 (today); last confirmed on the board 2026-11-12.
• The apply link opens job-boards.greenhouse.io, the address Reddit's board gives for this job.
• No other listing with this title and place on this board in the last 90 days.
• No layoff notices (WARN) under this name in the state files JoRoute reads.

What the listing says · Employer's own words, not checked

• Pay: $230,000 to $322,000 a year
• Job type: Not stated
• Where: New York City, NY · London
• Posted: 2026-11-12

What the job asks · Employer's own words, not checked

Level: Lead / staff. The title says "Staff".

Must have

• 7+ years of hands-on experience with the full lifecycle of designing, training, evaluating, testing, and deploying industry-level models.
• Final offer amounts are determined by multiple factors including, skills, depth of work experience and relevant licenses/credentials, and may vary from the amounts listed below.

Main duties

• Providing technical leadership and mentorship to MLEs in the team: driving designs & their review, establishing best practices in analysis, modeling and engi…
• Working closely with team/org leadership developing technical strategy for content-based embeddings & relevance for Ads.
• Developing new or iterating on existing embedding models for advertising use cases, ranging from aggregation pipelines to two-tower architectures and sequenc…
• Working with local and 3rd-party LLMs/VLMs: extract representations, develop evaluation methodologies, prompt tune and fine-tune large models to build state-…
• Building data processing and inference pipelines for the models we develop.

Lines copied from the posting, not rewritten. "Preferred" or "nice to have" items are not listed as must-haves.

How it compares · Compared by JoRoute from listings

• Typical listed pay for engineer jobs in New York, NY: $203k a year (379 listings, 34 employers). This listing is 36% higher.
• Across Reddit's 132 open listings, 49% of those with a posting date were first posted more than 60 days ago. How Reddit hires

What nobody outside the employer knows · Not known

• Whether the role is already filled or on hold: employers often leave listings up.
• How many people applied, and who reads the applications.
• Where in the published range an offer would land.

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