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Senior Machine Learning Researcher

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Work setting
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What you’ll work on

Full posting
  • Develop ML and deep learning models to detect and mitigate security threats

  • Build statistical and ML features that identify bot and fraud traffic

  • Clean, preprocess and explore security data, applying statistical methods

  • Integrate ML solutions into security products with analysts and engineers

  • Publish research findings in reputable journals and conferences

From the employer’s posting
Develop and implement ML and deep learning models to detect and mitigate security threats.
Developing new product features using statistical/machine learning-based algorithms to identify bot and fraud traffic
Conduct data cleaning, preprocessing, and exploratory data analysis. Apply statistical methods to analyze security-related data.
Collaborate with security analysts, software engineers, and other stakeholders to integrate ML solutions into security products.
Publish research findings in reputable journals and conferences.
Education & alternatives
Must Have: - Bachelor's, Master's, or PhD in Computer Science, Machine Learning, Artificial Intelligence, or a related field. - Proficiency in ML algorithms, neural networks, and model development.

Benefits in the posting

Full benefits wording
  • Beautiful office space with many perks
  • Robust benefits package
  • Provident Fund
  • Accident Insurance
  • Hybrid office model with flexible working hours and work from home days to support personal well-being and mental health

From the employer’s posting.

Apply at Arkose Labs

Posting record

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Status in our records
Live
First seen by us
Oct 7, 202637 days ago
Recorded sightings
30
Last seen by us
Nov 10, 2026
Employer says posted
Oct 2, 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

Time since we first saw it

Day 37

Similar jobs usually come down between day 8 and day 76.

From 5,460 similar postings that came down. Coming down is not always a hire.

Arkose Labs is hiring

1 open job

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

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.

  • C++
  • Java
  • Python
  • R
  • Scala
  • PyTorch
  • scikit-learn
  • TensorFlow
Where the posting names them
- Experience with ML frameworks and libraries (e.g., TensorFlow, PyTorch, scikit-learn). - Strong coding skills in Python, R, and familiarity with languages such as C++, Java, or Scala. - Ability to perform data cleaning, preprocessing, and exploratory data analysis.
- Proficiency in ML algorithms, neural networks, and model development. - Experience with ML frameworks and libraries (e.g., TensorFlow, PyTorch, scikit-learn). - Strong coding skills in Python, R, and familiarity with languages such as C++, Java, or Scala.

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Demand for ML Engineer roles

New ML Engineer postings at the employers we follow are up 10% over the last 6 weeks compared with the 6 before.

Weekly new ML Engineer postings at the same employers, from the week of August 17 to the week of November 2. The fewest in a week was 612, the most 1,081, and the latest week had 1,068.
August 17Last week

Each bar is one week of new postings. The darkest bars are the last 6 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 ↗

Arkose Labs is on a mission to create an online environment where all consumers are protected from spam and abuse. As a Fast Company 2025 Best Workplace for Innovators, we provide a proactive fraud deterrence platform, Arkose Titan, designed to neutralize modern attacks powered by Agentic AI and LLMs. By combining proprietary intelligence with dynamic friction, we undermine attacker ROI to protect global giants like Microsoft, Meta, and Roblox. Headquartered in San Mateo, CA, we maintain a global presence across APAC, Central and South America, and EMEA.

Position Overview:

As a Sr. Machine Learning Researcher specializing in security, you will apply your expertise in machine learning and cybersecurity to develop innovative solutions to detect, prevent, and respond to security threats and fraud. You will conduct independent research, collaborate with cross-functional teams, and stay abreast of the latest advancements in the field.

Key Responsibilities:

  • Develop and implement ML and deep learning models to detect and mitigate security threats.
  • Developing new product features using statistical/machine learning-based algorithms to identify bot and fraud traffic
  • Conduct data cleaning, preprocessing, and exploratory data analysis. Apply statistical methods to analyze security-related data.
  • Stay updated with the latest research and advancements in ML and cybersecurity. Publish research findings in reputable journals and conferences.
  • Collaborate with cross-functional teams to understand project requirements and contribute to the development of solutions.
  • Collaborate with security analysts, software engineers, and other stakeholders to integrate ML solutions into security products.
  • Communicate complex technical concepts to both technical and non-technical stakeholders effectively.

Must Have:

  • Bachelor's, Master's, or PhD in Computer Science, Machine Learning, Artificial Intelligence, or a related field.
  • Proficiency in ML algorithms, neural networks, and model development.
  • Experience with ML frameworks and libraries (e.g., TensorFlow, PyTorch, scikit-learn).
  • Strong coding skills in Python, R, and familiarity with languages such as C++, Java, or Scala.
  • Ability to perform data cleaning, preprocessing, and exploratory data analysis.
  • Strong understanding of statistical methods and their applications.
  • Familiarity with cybersecurity concepts, threat models, and common attack vectors.
  • Experience with security tools and technologies (e.g., intrusion detection systems, firewalls, malware analysis tools).
  • Strong analytical and problem-solving skills to identify and mitigate security threats using ML techniques.
  • Understanding of network security, bot security, application security, and incident response.

Nice to Have

  • Experience with bot detection, device fingerprinting, behavioral biometrics, or real-time risk scoring.
  • Experience with low-latency, high-throughput ML serving infrastructure.
  • Familiarity with current ML research relevant to fraud/security (e.g., following or contributing to arXiv publications in adversarial ML, anomaly detection, or graph learning).
  • Experience scaling researcher productivity using Agentic AI.

Why Arkose Labs?

At Arkose Labs, our technology-driven approach enables us to make a substantial impact in the industry, supported by a robust customer base consisting of global enterprise giants such as Microsoft, Roblox, and more. We’re not just a company; we’re a collaborative ecosystem where you will actively partner with these influential brands, tackling the most demanding technical challenges to safeguard hundreds of millions of users across the globe.

Why do top tech professionals choose Arkose Labs?

Cutting-Edge Technology: Our high-efficacy solutions, backed by solid warranties, attract leading, global enterprise clients.Innovation and Excellence: We foster a culture that emphasizes technological innovation and the pursuit of excellence, ensuring a balanced and thriving work environment.Experienced Leadership: Guided by seasoned executives with deep tech expertise and a history of successful growth and equity events.Ideal Size: We’re structured to be agile and adaptable, large enough to provide stability, yet small enough to value your voice and ideas.

Join us in shaping the future of technology. At Arkose Labs, you’re not just an employee; you’re part of a visionary team driving global change

The most recognizable brands in the world select Arkose Labs, including Roblox, Microsoft, Adobe, Expedia, Snap and Meta.

We value your unique contributions, perspectives, and experiences. Be part of a diverse and high-performing environment that prioritizes collaboration, excellence, and inclusion. We hire the best, focus on their professional development, and offer support for continuing education.

We value:

  • People: first and foremost they are our most valuable resource. Our people are independent thinkers who make data driven decisions and take ownership and accountability in all the things they do.
  • Team Work. We demonstrate respect, trust, integrity, and communicate openly with a positive can do attitude and constructively challenge one another
  • Customer Focus. We empathize with our customers and obsess about solving their problems
  • Execution with precision, professionalism and urgency
  • Security. It’s the lens through which we implement our processes, procedures, and programs

Benefits:

  • Competitive salary + Equity
  • Beautiful office space with many perks 
  • Robust benefits package
  • Provident Fund
  • Accident Insurance
  • Hybrid office model with flexible working hours and work from home days to support personal well-being and mental health

Arkose Labs is an Equal Opportunity Employer that makes employment decisions without regard to race, color, religious creed, national origin, ancestry, sex, pregnancy, sexual orientation, gender, gender identity, gender expression, age, mental or physical disability, medical condition, military or veteran status, citizenship, marital status, genetic information, or any other characteristic protected by applicable law. In addition, Arkose Labs will provide reasonable accommodations for qualified individuals with disabilities.

#LI-Hybrid #LI-Midsenior

 

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Location & working pattern

Pune, India

- Accident Insurance - Hybrid office model with flexible working hours and work from home days to support personal well-being and mental health Arkose Labs is an Equal Opportunity Employer that makes employment decisions without regard to race, color, religious creed, national origin, ancestry, sex, pregnancy, sexual orientation, gender, gender identity, gender expression, age, mental or physical disability, medical condition, military or veteran status, citizenship, marital status, genetic information, or any other characteristic protected by applicable law. In addition, Arkose Labs will provide reasonable accommodations for qualified individuals with disabilities. #LI-Hybrid #LI-Midsenior
Work authorization
- Hybrid office model with flexible working hours and work from home days to support personal well-being and mental health Arkose Labs is an Equal Opportunity Employer that makes employment decisions without regard to race, color, religious creed, national origin, ancestry, sex, pregnancy, sexual orientation, gender, gender identity, gender expression, age, mental or physical disability, medical condition, military or veteran status, citizenship, marital status, genetic information, or any other characteristic protected by applicable law. In addition, Arkose Labs will provide reasonable accommodations for qualified individuals with disabilities. #LI-Hybrid #LI-Midsenior

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