Enable job alerts via email!

Senior Machine Learning Engineer - Search - London

Perplexity

London

On-site

USD 160,000 - 250,000

Full time

30+ days ago

Boost your interview chances

Create a job specific, tailored resume for higher success rate.

Job summary

Join a forward-thinking company as a Senior Machine Learning Engineer, where you will play a crucial role in developing advanced search technologies. This innovative firm is focused on enhancing search quality through cutting-edge models and data strategies. You will architect core components, train and deploy models, and collaborate with talented teams to ensure swift and efficient delivery. If you are passionate about machine learning and eager to make a significant impact in a rapidly growing environment, this opportunity is perfect for you. Be part of a team that is transforming how information is retrieved and ranked, shaping the future of search technology.

Benefits

Equity options

Flexible working hours

Health insurance

Professional development

Remote work options

Wellness programs

Team retreats

Generous vacation policy

Parental leave

Work-from-home allowance

Qualifications

8 years of experience in software development with strong algorithms knowledge.
Hands-on experience with transformer-based models in large-scale systems.
5 years of experience with ML design and infrastructure.

Responsibilities

Architect and build core components of the search platform.
Train and evaluate retrieval and ranking models.
Collaborate with cross-functional teams for high-quality delivery.

Skills

Machine Learning

Data Structures

Algorithms

Python

C++

Java

Rust

Transformer Models

Search Systems

Education

Master’s degree in Engineering

PhD in Computer Science

Tools

ML Infrastructure

Model Deployment

Data Processing

Senior Machine Learning Engineer - Search - London

Join to apply for the Senior Machine Learning Engineer - Search - London role at Perplexity

Senior Machine Learning Engineer - Search - London

4 hours ago Be among the first 25 applicants

Join to apply for the Senior Machine Learning Engineer - Search - London role at Perplexity

Perplexity is seeking an experienced Senior Machine Learning Engineer to help build the next generation of advanced search technologies, with a focus on retrieval and ranking.

Responsibilities

Relentlessly push search quality forward—through models, data, tools, or any other leverage available
Architect and build core components of our search platform and model stack
Train and evaluate retrieval, ranking and classification models, including LLMs
Deploy models - from boosting to LLMs - in a scalable and performant way
Build and optimize RAG pipelines for grounding and answer generation
Collaborate with Data, AI, Infrastructure and Product teams to ensure fast and high quality delivery

Qualifications

Deep understanding of search and retrieval systems, including quality evaluation principles and metrics
Proven track record with large-scale search or recommender systems
Hands-on experience with transformer-based models for dense retrieval, ranking, and classification in large-scale search systems
Master’s degree or PhD in Engineering, Computer Science, Math, Physics, or a related field.
8 years of experience in software development and with data structures/algorithms in either (C, C++, Python, Java, Go or Rust).
5 years of experience with ML design and ML infrastructure (e.g., model deployment, model evaluation, data processing, debugging, fine tuning).
5 years of experience designing, training, and evaluating machine learning models.
3 years of experience in a technical leadership role leading project teams and setting technical direction.
Self-driven, with a strong sense of ownership and execution

Our cash compensation range for this role is $160,000 - $250,000.

At Perplexity, we've experienced tremendous growth and adoption since publicly launching the world's first fully functional conversational answer engine in 2022. We've grown from answering 2.5 million questions per day at the start of 2024 to around 20 million daily queries in December 2024. We also offer Perplexity Enterprise Pro, which counts leading companies like Nvidia, the Cleveland Cavaliers, Bridgewater, and Zoom as customers.

To support our rapid expansion, we've raised significant funding from some of the most respected technology investors. Our investor base includes IVP, NEA, Jeff Bezos, NVIDIA, Databricks, Bessemer Venture Partners, Elad Gil, Nat Friedman, Daniel Gross, Naval Ravikant, Tobi Lutke, and many other visionary individuals. In 2024, our employee base grew nearly 300%, and we're just getting started.

Final offer amounts are determined by multiple factors, including, experience and expertise, and may vary from the amounts listed above.

Equity: In addition to the base salary, equity is part of the total compensation package.

Seniority level

Seniority level
Mid-Senior level

Employment type

Employment type
Full-time

Job function

Job function
Engineering and Information Technology
Industries
Software Development

Referrals increase your chances of interviewing at Perplexity by 2x

Get notified about new Machine Learning Engineer jobs in London, England, United Kingdom.

London, England, United Kingdom 1 month ago

London, England, United Kingdom 2 days ago