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Senior Machine Learning Engineer, Recommendation & AI Applications

Mountain View, California, United States

Open 3 months, first seen by us 90 days ago
Pay
USD 195,000–230,000/year · Base — pay source
Annual Base Pay Range $195,000—$230,000 USD CPRA Privacy Notice for California Candidates
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Work setting
Not stated
Employment
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What you’ll work on

Full posting

We are looking for a Senior Machine Learning Engineer to help evolve our large-scale recommendation systems and apply AI / LLM technologies to real-world production problems.

Design, build, and iterate on high-throughput, low-latency recommendation systems powering NewsBreak’s core feeds.

  • Design and iterate on high-throughput, low-latency recommendation systems for core feeds

  • Improve retrieval, ranking, and multi-objective optimization

  • Apply LLMs to content understanding, user intent modeling, and feature generation

  • Fix data quality, model drift, and performance issues in production

From the employer’s posting
We are looking for a Senior Machine Learning Engineer to help evolve our large-scale recommendation systems and apply AI / LLM technologies to real-world production problems. You will work on core feed, retrieval, and ranking systems serving tens of millions of users, while also participating in AI-driven innovation projects that explore new ways to improve content discovery, personalization, and developer productivity. This role is ideal for engineers who enjoy strong individual ownership, hands-on development, and translating ideas into reliable systems.
Design, build, and iterate on high-throughput, low-latency recommendation systems powering NewsBreak’s core feeds.
Improve retrieval, ranking, and multi-objective optimization to balance engagement, retention, content quality, and business metrics.
Apply LLMs and foundation models to recommendation-related problems such as content understanding, user intent modeling, and feature generation.
Identify and resolve issues related to data quality, model drift, and system performance in production.

Benefits in the posting

Full benefits wording
  • We offer a competitive benefits package:
  • Health, dental, and vision care for you and your family (100% coverage for employee)
  • Top-tier 401(K) plan with company matching
  • Paid time off and paid holidays
  • FSA, HSA and commuter benefits programs
  • Team activity budget
  • The US base salary range for this full-time position is listed below. Pay may vary based on a number of factors including job-related skills, level, experience, geographic location and relevant education or training. At NewsBreak, we design our overall rewards package to attract top talents. Depending on the position, the role may also be eligible for discretionary bonus and options. Your recruiter can share more details during the hiring process.
  • Annual Base Pay Range
  • CPRA Privacy Notice for California Candidates

From the employer’s posting.

About NewsBreak

NewsBreak started in 2015 to answer these questions, and today more than 40 million people a month rely on us to follow what’s going on in their zip code.

In the employer’s words · Read in context

Apply at NewsBreak

Posting record

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Open 3 monthsWe first saw this posting 90 days ago and it is still up. Roles open this long are often slow to fill or kept open to collect applications.

Status in our records
Live
First seen by us
Aug 8, 202690 days ago
Recorded sightings
44
Last seen by us
Nov 5, 2026

These dates show when we found the posting. Check the employer’s website to confirm it is still accepting applications.

How this job compares

Pay

In line with similar jobs

$195K–$230K against $166K–$240K, the middle half of what similar US postings state.

From 1,319 postings in the last year. Stated ranges, not salaries paid.

Time since we first saw it

Day 90

Up longer than most. Similar jobs usually come down between day 6 and day 70.

From 4,581 similar postings that came down. Coming down is not always a hire.

NewsBreak is hiring

10 open jobs

Open jobs by the week we first saw them, last 12 weeks.

  • ML Engineer hiring has slowed
  • Its jobs tend to stay up a long time
Hiring record

See how this role fits your experience

Add your resume and we’ll mark which of these tools you already use, and point out anything in the posting that could rule you out.

  • Java
  • Python
  • Scala
  • PyTorch
  • TensorFlow
Where the posting names them
What We’re Looking For Minimum Qualifications - 3+ years of industry experience building machine learning or recommendation systems in production. - Strong understanding of recommendation system fundamentals (ranking, embeddings, user/item modeling, experimentation). - Strong coding skills with Python / Java / Scala, and experience with PyTorch or TensorFlow. - Experience working with large-scale data and ML systems (e.g., Spark, distributed training, real-time inference). - Ability to own features end-to-end and deliver measurable business impact. Bonus / Plus Qualifications - Production experience applying AI or LLMs to recommendation systems. - Experience contributing to 0 → 1 AI or ML-driven products. - Familiarity with AI-assisted development tools and workflows.

Your next step

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Already applied? Track this application

Demand for ML Engineer roles

New ML Engineer postings at the employers we follow are up 12% over the last 5 weeks compared with the 5 before.

Weekly new ML Engineer postings at the same employers, from the week of August 17 to the week of October 26. The fewest in a week was 624, the most 1,094, and the latest week had 870.
August 17Last week

Each bar is one week of new postings. The darkest bars are the last 5 weeks.

Counted from the hiring pages we’ve followed for at least five weeks, so employers we add don’t look like growth. Updated weekly.

About the role

We file this job under ML Engineer, by the work the posting describes.

ML engineers put machine learning models into products. They write the code that trains, ships, serves and monitors models so a recommendation or prediction works for real users.

Postings ask for strong Python and software engineering, a framework such as PyTorch, cloud services, and more and more often experience with large language models.

A data scientist often works out which model to build; an ML engineer makes it run reliably in production.

US government figures for computer and information research scientists

Median yearly pay, May 2025
$140,300
Expected change, 2025 to 2035
21.8% more jobsagainst 3.5% for all jobs

The government has no code for ML engineers, so these figures are for the closest group, computer and information research scientists.

Source: US Bureau of Labor Statistics, Occupational Employment and Wage Statistics (May 2025) and Employment Projections (2025 to 2035). Occupation code 15-1221.

Job description

View original posting ↗

About NewsBreak

Local life runs on local information. What happened down the street? Who can fix this? Where should we go tonight? NewsBreak started in 2015 to answer these questions, and today more than 40 million people a month rely on us to follow what’s going on in their zip code.

Three platforms with one vision: powering local life. Led by founder and CEO Jeff Zheng, NewsBreak is our local life and news platform; Nearby AI connects people with local businesses; and NDot AI helps publishers and creators grow and earn.

Building for the long term. A $115 million Series C made us a unicorn in 2021, and we keep investing in our people. We’re Great Place to Work® certified and named to Fast Company’s Best Workplaces for Innovators (2025) and Fortune’s Best Workplaces in the Bay Area™ (2026).

Everyone makes an impact. Whether you write code, shape products, tell our story, or run the business, we want people who own projects end to end, stay curious, and speak up. Join us.

Learn more at: NewsBreak, Nearby AI, NDot AI

About the Role

We are looking for a Senior Machine Learning Engineer to help evolve our large-scale recommendation systems and apply AI / LLM technologies to real-world production problems. You will work on core feed, retrieval, and ranking systems serving tens of millions of users, while also participating in AI-driven innovation projects that explore new ways to improve content discovery, personalization, and developer productivity. This role is ideal for engineers who enjoy strong individual ownership, hands-on development, and translating ideas into reliable systems.

 What You’ll Work On

Large-Scale Recommendation Systems

  • Design, build, and iterate on high-throughput, low-latency recommendation systems powering NewsBreak’s core feeds.
  • Improve retrieval, ranking, and multi-objective optimization to balance engagement, retention, content quality, and business metrics.
  • Own systems from offline training → online inference → A/B experimentation → metric analysis.
  • Identify and resolve issues related to data quality, model drift, and system performance in production.

AI & LLM Applications

  • Apply LLMs and foundation models to recommendation-related problems such as content understanding, user intent modeling, and feature generation.
  • Prototype quickly, validate with experiments, and push successful ideas into production.

AI-Driven Development

  • Embrace AI-assisted development workflows, including LLM-powered coding, debugging, and analysis.
  • Apply AI across feature ideation, prototyping, and experiment analysis.

0 → 1 Innovation

  • Contribute to 0–1 AI-powered projects, helping take ideas from early exploration to MVP and production.

What We’re Looking For

Minimum Qualifications - 3+ years of industry experience building machine learning or recommendation systems in production. - Strong understanding of recommendation system fundamentals (ranking, embeddings, user/item modeling, experimentation). - Strong coding skills with Python / Java / Scala, and experience with PyTorch or TensorFlow. - Experience working with large-scale data and ML systems (e.g., Spark, distributed training, real-time inference). - Ability to own features end-to-end and deliver measurable business impact.

Bonus / Plus Qualifications - Production experience applying AI or LLMs to recommendation systems. - Experience contributing to 0 → 1 AI or ML-driven products. - Familiarity with AI-assisted development tools and workflows.

Benefits

We offer a competitive benefits package:

  • Health, dental, and vision care for you and your family (100% coverage for employee)
  • Top-tier 401(K) plan with company matching
  • Paid time off and paid holidays
  • FSA, HSA and commuter benefits programs
  • Team activity budget
The US base salary range for this full-time position is listed below. Pay may vary based on a number of factors including job-related skills, level, experience, geographic location and relevant education or training. At NewsBreak, we design our overall rewards package to attract top talents. Depending on the position, the role may also be eligible for discretionary bonus and options. Your recruiter can share more details during the hiring process.
Annual Base Pay Range
$195,000—$230,000 USD

CPRA Privacy Notice for California Candidates

 

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Pay
Annual Base Pay Range $195,000—$230,000 USD CPRA Privacy Notice for California Candidates
Location & working pattern

Mountain View, California, United States

Working pattern and location restrictions need checking in the full posting.

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