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226,150 Python jobs

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226K jobs
Reddit Backed by a16zBacked by Sequoia
385 views 19 hours ago

Principal Data Scientist, Ads

Open 146d RemoteNorth AmericaContractPrincipal Salary + equity 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

Reddit is hiring a Principal Data Scientist to lead the long-term scientific strategy for its advertising platform — defining measurement, prediction, and optimization frameworks for ads auctions, targeting, and advertiser LTV. The role relies heavily on statistics, econometrics, causal inference, machine learning, Python/R, and SQL at large scale.

A/B Testing AI Analytics Causal Inference Data Science +5 skills
268K – 365K $
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Reddit Backed by a16zBacked by Sequoia
453 views 19 hours ago

Analytics Engineer

Open 22d RemoteNorth AmericaContract Salary + equity 7 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

Analytics Engineer on Reddit's Data Science team, building and maintaining large-scale data pipelines, data quality checks, and internal analytics tooling for Consumer, Ads, and Marketing teams. Core stack includes Python, SQL, Spark, Scala, and Airflow, with a focus on ETL/ELT and data modeling.

Agentic AI AI Airflow Analytics Automation +13 skills
164K – 230K $
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Reddit Backed by a16zBacked by Sequoia
257 views 19 hours ago

Senior Staff Data Scientist, Consumer Relevance

Open 146d RemoteNorth AmericaContractStaff Salary + equity 9 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

Lead relevance measurement and evaluation for feeds and search using Python/R/SQL, causal inference, and experimentation to improve ranking algorithms.

AI Causal Inference Data Science Machine Learning Notion +4 skills
233K – 326K $
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Reddit Backed by a16zBacked by Sequoia
359 views 19 hours ago

Staff Data Scientist - Ads Measurement, Signals, Privacy

Open 111d RemoteNorth AmericaContractStaff Salary + equity 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

A senior data scientist at Reddit designs identity resolution models, improves ad measurement methodologies, and enhances predictive performance for advertisers using statistical and machine learning techniques.

A/B Testing AI Causal Inference Data Science Machine Learning +4 skills
217K – 304K $
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Reddit Backed by a16zBacked by Sequoia
265 views 19 hours ago

Staff Data Scientist - Ads Measurement, Signals, Privacy

Open 94d RemoteNorth AmericaContractStaff 6 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
Canada
Ontario

Staff Data Scientist designs probabilistic identity models and lift measurement systems to improve ad targeting and privacy-compliant attribution for Reddit’s ad platform.

A/B Testing AI Causal Inference Data Science Machine Learning +4 skills
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Reddit Backed by a16zBacked by Sequoia
317 views 19 hours ago

Staff Data Scientist, Marketing

Open 146d RemoteNorth AmericaContractStaff Salary + equity 8 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

Lead Reddit’s marketing measurement strategy, building Media Mix Models and incrementality tests to optimize hundreds of millions in ad spend across B2B and B2C growth.

AI Causal Inference Data Pipelines Data Science Machine Learning +5 skills
217K – 304K $
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Reddit Backed by a16zBacked by Sequoia
251 views 19 hours ago

Staff Data Scientist, Marketing

Open 146d RemoteNorth AmericaContractStaff 8 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
Canada
Ontario

Lead Reddit’s marketing measurement strategy, building Media Mix Models and incrementality tests to optimize hundreds of millions in ad spend and drive advertiser/user growth.

AI Causal Inference Data Pipelines Data Science Machine Learning +5 skills
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Reddit Backed by a16zBacked by Sequoia
510 views 19 hours ago

Senior Software Engineer, Agentic Ads Experience

Open 122d RemoteNorth AmericaContractSenior Salary + equity 5 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

Senior software engineer on Reddit's Agentic Ads Experience team, designing and shipping AI-powered advertiser-facing features (campaign assistants, creative generation, audience discovery, conversational analytics) end-to-end using LLMs, agents, RAG, evals, and strong systems engineering in languages like Python, Go, Rust, Java, or JavaScript.

Agentic AI AI Analytics API Automation +11 skills
191K – 267K $
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Reddit Backed by a16zBacked by Sequoia
226 views 19 hours ago

Staff Data Scientist, Ads

Open 146d RemoteNorth AmericaContractStaff 9 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
Canada
Ontario

Build and refine Reddit’s ad-measurement and identity systems using probabilistic modeling, causal inference, and ML to improve advertiser ROAS and privacy-safe targeting.

A/B Testing AI Causal Inference Data Science Machine Learning +4 skills
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Reddit Backed by a16zBacked by Sequoia
284 views 19 hours ago

Staff Data Scientist, Ads

Open 146d RemoteNorth AmericaContractStaff Salary + equity 9 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

Staff Data Scientist on Reddit’s Ads team building identity resolution, lift measurement, and predictive models to improve ad performance and advertiser ROI.

A/B Testing AI Causal Inference Data Science Machine Learning +4 skills
217K – 304K $
 Sign in to see your match
Reddit Backed by a16zBacked by Sequoia
282 views 19 hours ago

Senior Data Scientist, Ads

Open 85d RemoteNorth AmericaContractSenior Salary + equity 7 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

Build and apply ML models to improve Reddit’s ad platform, analyzing large-scale data to drive advertiser performance and platform growth.

A/B Testing AI Anomaly Detection BigQuery Causal Inference +12 skills
191K – 267K $
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Reddit Backed by a16zBacked by Sequoia
311 views 19 hours ago

Senior Data Scientist - Consumer

Open 85d RemoteNorth AmericaContractSenior Salary + equity 7 questions Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.Licensed NL sponsor — This employer appears on the IND public register of recognised sponsors for work and highly skilled migrants. The recognition belongs to the employer and is not a commitment to sponsor this role.H-1B sponsor history — This employer has had H-1B petitions approved by USCIS in the last five fiscal years, per the USCIS H-1B Employer Data Hub. The approval belongs to the employer and is not a commitment to sponsor this role.Canada LMIA employer — This employer was issued a positive Labour Market Impact Assessment by Employment and Social Development Canada in the last four quarters, through the High Wage, Global Talent or Permanent Resident streams. The approval belongs to the employer and is not a commitment to sponsor this role.
United States

Senior Data Scientist at Reddit designing experiments, analyzing user/product metrics, and mentoring teams to drive growth and strategy across media platforms.

A/B Testing AI Business Development Causal Inference Data Science +4 skills
191K – 267K $
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Stanley College
19 hours ago

Power BI Analyst

New HybridAPACFull-time
Philippines
Makati City, Metro Manila

Builds and maintains Power BI dashboards tracking student performance, enrolment, and institutional operations at a college, using DAX, Power Query, SQL, and Python for ETL, plus REST API integrations and AI-assisted automation of reporting workflows. Based on-site in Makati City.

Accessibility AI Analytics API Automation +11 skills
50K – 60K PHP / mo
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Nova
116 views 19 hours ago

Senior Systems Engineer

Open 54d On-siteNorth AmericaSenior
United States
Fremont, CA

Senior System Engineer at Nova designs, builds, and characterizes novel semiconductor metrology instruments across the full product lifecycle — working on high-vacuum electron-beam and X-ray systems, error budget analysis, modeling/simulation, and integration of new sub-systems. Core work spans vacuum hardware, metrology equipment, and modeling in tools like MATLAB/Python.

AI Assembly Machine Learning MATLAB Prototyping +1 skills
145K – 170K $
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Claroty Backed by SoftBank Vision Fund
147 views 19 hours ago

QA Automation Engineer

Open 25d HybridMENA Licensed UK sponsor — This employer appears on the GOV.UK register of licensed sponsors for the Skilled Worker and related work routes. The licence belongs to the employer and is not a commitment to sponsor this role.
Israel
Tel Aviv

A QA Automation Engineer in Tel Aviv who designs, builds, and maintains scalable API and UI test automation frameworks embedded into CI/CD pipelines for Claroty's cyber-physical systems (CPS) security platform. Works with Python, Playwright/Selenium, Git, and Jenkins to ensure product quality and release readiness.

AI API Automation Backbone.js CI/CD +17 skills
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AllCloud
67 views 19 hours ago

D&A - Senior Data Engineer

Open 64d HybridMENASenior
Israel
Ra'anana, Center District

AllCloud, an AI-led cloud professional and managed services provider (AWS Premier and Salesforce partner), is hiring a data engineer to design, build, and maintain ETL/ELT pipelines and a Lakehouse data platform on Databricks, Snowflake, and AWS — spanning data modeling, governance, performance tuning, and automated data quality.

Agile AI Airflow Analytics AWS +32 skills
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Xplor
19 hours ago

Senior Cybersecurity Engineer | Cyber Threat Intelligence & Response

New RemoteAPACContractSenior
New Zealand

About the opportunity Our Cyber Threat Intelligence & Response (CTIR) engineers are the people we count on when something goes wrong, and the people who make sure it goes wrong far less often. This is a hands-on…

Active Directory AI Analytics API Api Security +16 skills
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QXO
19 hours ago

Staff Software Engineer, Fullstack

New HybridNorth AmericaContractStaff
United States
9999-SEATTLE

Staff fullstack engineer on QXO's RevX Pricing Technology team in Seattle: designs, builds, and operates the pricing engine, CPQ tools, costing services, and AI/ML model serving behind a building-products distributor's quoting, eCommerce, and point-of-sale channels. Stack spans Java/Python/Kotlin/Go, React/TypeScript, GCP/AWS, and SQL data pipelines.

AI API AWS CI/CD Cloud +23 skills
160K – 288K $
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Sekoia
19 hours ago

Data Scientist Engineer

New HybridEuropeFull-time
France
Rennes, Paris

Hybrid data engineer / data scientist / MLOps role on Sekoia's Data team: building Python and Airflow pipelines that absorb ~1M events per second, and designing advanced algorithms (ML, graph, anomaly detection) that you ship to production yourself, with a base in Paris or Rennes and up to 3 remote days per week.

Airflow Anomaly Detection CI/CD Cybersecurity Data Engineering +10 skills
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Partoo
19 hours ago

Engineering Manager, Visibility - CDI - Paris - M/F/D

New HybridEuropeFull-timeLead
France
Paris

Engineering Manager for Partoo's Visibility scope: leading ~12 engineers across 2–3 teams that keep multi-location business listings in sync with Google, Apple, Bing and AI assistants (SEO/GEO). People leadership, delivery, reliability and hands-on coding with AI agents. Stack: Python/FastAPI, Celery, PostgreSQL, ClickHouse, React/TypeScript, AWS.

AI API AWS ChatGPT ClickHouse +12 skills
90K – 100K € / mo
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