Senior Data Scientist (Sota Team)

SEMrush; España; On-site; PHP 40,000 - 60,000; Full time

Benefits offered by this job

Unlimited PTO

Hobby & team building budget allowance

Employee Support Program

Loss of family member financial aid

Employee Resource Groups

Job summary

SEMrush is hiring a Data Scientist in Romblon to enhance LLM and NLP-based systems for AI Search optimization. Your role involves building and optimizing solutions that drive analytical insights in brand extraction and domain mapping.

You'll leverage over 5 years of expertise, utilizing Python and machine learning skills to tackle complex product challenges. Join a dynamic team committed to innovation, fast-paced growth, and having a positive impact on marketers everywhere.

Enjoy perks like unlimited PTO, team building budgets, and more!

Qualifications

• 5+ years of experience as a Data Scientist, Machine Learning Engineer, or similar role.
• Strong knowledge of machine learning, statistics, and classical NLP techniques.
• Practical experience with LLMs or LLM-based systems.

Responsibilities

• Build and improve LLM-and NLP-based systems for AI Search optimization.
• Design evaluation frameworks and benchmarks for LLM outputs.
• Optimize LLM pipelines for quality, cost, and reliability.

Skills

Machine Learning

Python

SQL

NLP Techniques

Data Analysis

Tools

GCP

Docker

ClearML

Job description

Semrush is a brand visibility platform, empowering marketers to command their online presence and create measurable impact.

We unify SEO authority and AI visibility, so brands are found, cited, and chosen everywhere search happens.

Here, you own the way you work, but we move as one unbeatable team.

We don’t just lead the market, we’re busy creating the world where Semrush is an unfair advantage for every marketer.

We move fast in ways to help you grow. Here, you have room to experiment, keep what works, and learn quickly from what doesn’t.

About the role

Build and improve LLM‑and NLP‑based systems used in AI Search optimization products.

Design evaluation frameworks and benchmarks for LLM outputs, prompts, and model behavior.

Work on brand extraction, domain mapping, entity extraction, and related algorithmic tasks.

Optimize LLM pipelines for quality, cost, throughput, and reliability.

Write clean, production-quality Python code.

Collaborate with Product, Engineering, and other Data Scientists to turn product problems into working technical solutions.

Examples of our projects:

Brand Extraction and Domain Mapping – extracting brand names, mapping corresponding domains, and other relevant entities from LLM-generated responses.

LLM quality evaluation and optimization – building benchmarks to evaluate prompt and model quality, while improving throughput, latency, and cost.

Algorithm development – designing and improving algorithms for product aliases, brand hierarchies, and other domain‑specific problems.

About you

Move together. Raise the bar. Learn fast—grow faster. That’s the default. And here’s what else is needed to succeed in this role:

Hard Skills:

5+ years of experience as a Data Scientist, Machine Learning Engineer, or in a similar role.

Strong knowledge of machine learning, statistics, and classical NLP techniques.

Strong Python and SQL skills.

Practical experience working with LLMs or LLM-based systems.

Understanding of how to evaluate model quality using datasets, benchmarks, or experiments.

Ability to write clean, maintainable, and reliable code.

Ownership mindset and ability to work with ambiguous product problems.

Soft Skills:

You care about delivering working solutions, not just experiments.

You balance execution speed with code quality, reliability, and maintainability.

You communicate clearly and collaborate well across Data Science, Product, and Engineering.

Experience with RAG, AI agents, or agent‑based systems.

Experience deploying ML or LLM-based solutions in production.

Experience with GCP, Vertex AI, or GitLab CI.

Experience with asynchronous Python, high-throughput API calls, or large-scale data processing.

Experience with monitoring, experiment tracking, or reproducible research practices.

About the team

We are a Data Science team focused on LLM‑and NLP‑powered products for AI Search optimization. We work on AIO, AI Summarization, Brand Extraction and Domain Mapping, building AI-driven solutions for SEO analysis, entity extraction, and domain understanding.

Our stack

Python

ClearML, Docker, LangFuse, DVC

About the perks

• Unlimited PTO
• Hobby & team building budget allowance
• Employee Support Program
• Loss of family member financial aid
• Employee Resource Groups

A little more about us

Built on the industry’s most expansive proprietary dataset, Semrush delivers AI-driven insights across GEO, SEO, Agentic Search Optimization, content marketing, paid media, and social strategy. The company was founded in 2008 and is headquartered in Boston, MA with a global presence across North America, Europe and Asia.

We’ve built something people are proud to be part of. And the awards agree: Great Place to Work, DEI Workplace, Diversity Champion Award, International Inclusion Award, Most Women Friendly Employers, Best Place for Working Parents. All thanks to 1700+ employees who build the company every day.

About our Diversity, Equity, and Inclusion commitments

Semrush is an equal opportunity employer. Building a better future for marketers around the world unites people from all backgrounds. Even if you feel that you don’t 100% match all requirements, don’t be discouraged to apply! We are committed to ensure that everyone feels a sense of belonging in the workplace.

We do not discriminate based upon race, religion, creed, color, national origin, sex, pregnancy, sexual orientation, gender identity, gender expression, age, ancestry, physical or mental disability, or medical condition including medical characteristics, genetic identity, marital status, military service, or any other classification protected by applicable local, state or federal laws.