Senior Machine Learning Scientist
San Francisco / $180000 - $200000 annum
INFO
$180000 - $200000
LOCATION
San Francisco
Permanent
Senior Machine Learning Scientist
Location: SF Bay Area - Hybrid (3 days/week onsite)
Salary: $180-200k base + Equity
A leading commerce marketplace with 130M+ users and billions of daily events is hiring a Senior Machine Learning Scientist to drive innovation across personalization, feed ranking, computer vision, and GenAI. You'll work on high-impact ML solutions that directly shape user experience and business outcomes at massive scale.
What You'll Do
- Lead full-lifecycle ML projects from idea to production across core areas like personalization, trust & safety, marketing optimization, and user engagement.
- Own the ML development process-from data exploration and feature engineering to model training, deployment, and post-launch optimization.
- Collaborate cross-functionally with ML engineers, PMs, and business stakeholders to identify and prioritize high-leverage initiatives.
- Experiment with emerging AI techniques, including GenAI, computer vision, and LLMs, to push the boundaries of what's possible on the platform.
- Build scalable, production-ready ML systems that enhance key metrics like retention, engagement, and conversion.
What You Bring
- 3+ years of experience building, deploying, and maintaining ML models at scale.
- Deep expertise in Python, SQL, Spark (PySpark or Scala) and frameworks like PyTorch or TensorFlow.
- Proven track record in consumer tech or large-scale marketplaces companies.
- Hands-on experience with CNNs, Transformers, Vision Transformers, and personalization algorithms.
- Background in user behavior modeling, search relevance, or real-time data systems.
- Strong foundation in experimentation (A/B testing), statistics, and applied ML.
- Exceptional communication skills and the ability to translate technical insights into business value.
- Experience with LLMs, RAG (Retrieval-Augmented Generation), or PEFT (Parameter-Efficient Fine-Tuning) techniques.
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JOB RESULTS
Data Engineer
London
£55000 - £70000
+ Data Engineering
PermanentLondon
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Data Engineer
Location: London (Hybrid)
Salary: £70,000
Shape the future of audio analytics at a global media giant by building scalable data platforms, standardised infrastructure and cutting-edge frameworks that power smarter audience insight, stronger engagement, and high-impact digital experiences across multiple international markets.
The Opportunity
This opportunity offers the chance to join a global media organisation as it modernises and elevates its audio data capabilities. You’ll play a key role in building unified data platforms and standardised infrastructure that will be used across multiple international markets. Central to the role is creating robust pipelines and analytics layers that enable deeper audience insights and more impactful digital engagement.
Working within a small, forward-thinking engineering team, you’ll act as part of an internal consultancy driving best practice across the business. It’s a chance to influence architecture, shape frameworks from the ground up, and directly enhance everything from competitions to large-scale campaign performance.
Role and Responsibilities
In this role, you’ll build and maintain robust data pipelines using Python and SQL to ensure clean, reliable, and well-structured data. You’ll design and optimise workflows using tools such as Airflow and dbt to support scalable, high-quality analytics layers. You’ll help architect and evolve cloud-based data platforms across technologies like BigQuery, Redshift, and Terraform.
You’ll contribute to creating a standardised, self-serve data infrastructure that can be adopted across multiple international teams. You’ll also work closely with engineers and stakeholders to validate data quality, improve processes, and drive best-practice engineering across Kubernetes-based environments.
Interview Process
- Introductory Conversation – Discussing Experience and CV
- Technical Test
- Culture Fit Conversation
If you’re excited by the chance to help build standardised data platforms, enhance audience analytics, and influence architecture within a global media group’s growing audio data team, apply now.

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Director of Analytics & Data Engineering
San Francisco
$250000 - $280000
+ Advanced Analytics & Marketing Insights
PermanentSan Francisco, California
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Director of Analytics and Data Engineering
Location: Remote, US based
Salary: $250-280k Base Salary
We are partnering with a fast growing company at the intersection of fintech, gaming, and digital commerce to hire a Director of Analytics and Data Engineering. This leader will own the company wide data strategy, data ecosystem, and data organization.
If you have built modern data platforms in regulated financial environments and want to shape the future of real time digital economies, this role offers company level impact.
The Opportunity
You will turn data into a strategic, revenue enabling asset by architecting and running a modern data stack that powers real time analytics, forecasting, ML insights, and regulatory reporting. This includes building semantic layers, unified source of truth datasets, experimentation frameworks, and high-quality telemetry.
You will oversee the full data lifecycle so product, commercial, risk, and compliance teams have timely, trusted data that drives GTM strategy, financial planning, customer analytics, churn modeling, fraud detection, and product optimization.
What You Will Lead
- Enterprise data strategy, roadmaps, data product vision, and multi year investment planning
- Data governance including cataloging, lineage, metadata, SLAs, access controls, and auditability, plus standardized KPIs and metric definitions
- Modern data architecture including real time pipelines, event streaming, warehousing, lakes, modeling, orchestration, and CI/CD for analytics and ML
- Analytics leadership across BI, self service, dashboarding, reporting, product analytics, forecasting, experimentation, and cohort analysis
- Data science enablement for predictive models, risk scoring, automated decisioning, and personalization, with infrastructure to deploy models
- Team leadership across data engineering, BI, analytics, and applied science including hiring, mentorship, operational rigor, and quality standards
- Cross functional partnership with Product, Engineering, FP&A, Compliance, and GTM to support product innovation, financial modeling, AML and KYC workflows, and market expansion
- Data activation through dashboards, workflow automation, internal data apps, and decision support tools
What You Bring
- 10+years in data with at least 3 in senior leadership
- Experience in high growth fintech, payments, or regulated financial services
- Proven ability to build and scale enterprise data ecosystems
- Expertise in data governance, quality, and regulatory compliance including AML and KYC
- Strong leadership and communication skills
- Technical depth in cloud warehouses, modeling, ETL and ELT, orchestration, and BI
- Strong SQL and familiarity with Python
- Experience with AWS data services and infrastructure as code
- Bonus: crypto, gaming, or internal tooling experience
Why This Role
Join a company shaping next generation digital commerce and build the data function for a global, highly regulated business. You will have full ownership, executive visibility, and the mandate to design a data organization that enables innovation at scale.

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Senior Software Engineer – CDN & Go
San Francisco
$190000 - $240000
+ Data Engineering
PermanentSan Francisco, California
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Senior Software Engineer – Go (CDN and Distributed Systems)
Remote, US or Canada
$190-204k base + RSUs
A leading cloud infrastructure company is hiring a Senior Software Engineer with strong Go and distributed systems experience to help build and scale its next generation global CDN. This team operates at massive scale, handling billions of requests per day and powering some of the fastest, most reliable experiences on the web.
The Role
You will design and build high performance distributed systems that make the internet faster and more resilient. As part of the CDN Infrastructure group, you will work on projects such as:
- Evolving an internal CDN into a production ready customer platform
- Designing systems that support safe, incremental customer migration
- Scaling redirect handling from thousands to billions of requests
- Implementing HTTP/3 and exploring post quantum cryptography
- Driving performance improvements across the edge network
This role is ideal for engineers who enjoy deep technical challenges and want to influence how modern web infrastructure operates at global scale.
What We Are Looking For
- Strong experience with distributed systems, CDN, caching, or networking infrastructure
- Production Go experience. C and C plus plus backgrounds transfer well
- Solid understanding of the HTTP layer and cloud networking
- Experience operating systems at scale in a cloud or infra environment
- Bonus: Linux tuning, performance optimization, or open source work

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AI Software Engineer
Remote
$120000 - $160000
+ Data Engineering
PermanentOhio
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AI Software Engineer
Remote (US – ET/CT Time Zone)
$120K-$160K + Benefits
I’m partnering with a global leader in digital learning technology that’s transforming how millions of students and educators experience personalized, AI-powered learning. Following major investment in generative AI, the company is scaling its AI Platform Engineering team to build the next generation of adaptive learning tools.
This is a hands-on engineering role focused on building production-grade generative AI applications that power multiple products across the business.
The Role:
You’ll design and build scalable, full-stack systems that integrate large language models and AI capabilities into digital learning platforms. Working closely with data scientists, product managers, and engineers, you’ll help take GenAI prototypes from experimentation to production-driving forward real-world AI impact.
Key Responsibilities
- Develop and maintain AI-powered applications and platform services that are reliable, scalable, and secure
- Build and optimize LLM-based and RAG-powered solutions using frameworks such as LangChain or LangGraph
- Collaborate with Data Science teams to productionize models and streamline deployment pipelines
- Lead and contribute to technical design, architecture, and CI/CD improvements
- Ensure applications meet accessibility (WCAG 2.2 AA), performance, and security standards
- Stay current on the latest advancements in GenAI and advocate for best practices across the team
About You
- 5+ years of professional software engineering experience
- Strong full-stack skills across:
- Backend: Python, Node.js, or Go
- Frontend: Angular or React
- Databases: MySQL/PostgreSQL + NoSQL (e.g., DynamoDB)
- Cloud/Infra: AWS or Azure, Terraform, CI/CD tools
- Hands-on experience building AI/GenAI-enabled applications (Azure OpenAI, Amazon Bedrock, etc.)
- Practical understanding of RAG techniques, vector databases, and AI orchestration tools
- Strong system design, performance optimization, and collaboration skills
- Passionate about building impactful technology and staying ahead in the AI space

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Senior Software Engineer – Go
San Francisco
$190000 - $240000
+ Data Engineering
PermanentSan Francisco, California
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Senior Software Engineer – Go (CDN / Distributed Systems)
Remote – US or Canada
$190-240k base + RSUs
A market leader in cloud infrastructure and developer tooling is seeking a Senior Software Engineer (Go) to help design, scale, and optimize a next-generation global CDN.
This team builds the backbone of high-performance web delivery-handling billions of requests per day and powering some of the fastest, most reliable online experiences in the world.
If you’re passionate about distributed systems, high-performance networking, and building software that powers millions of developers, this is an opportunity to have a direct impact on how the web runs at scale.
The Role
As part of the CDN Infrastructure group, you’ll build and enhance distributed systems that make the internet faster and more resilient. You’ll design large-scale systems, write production-grade code, and collaborate closely with product and infrastructure teams to deliver high-impact improvements in routing, caching, and network performance.
You’ll work across key initiatives that include:
- Evolving an internal CDN framework into a fully production-grade product that customers can use directly.
- Designing systems that enable incremental customer migration onto the platform.
- Scaling redirect handling from thousands to billions of requests per site.
- Adding HTTP/3 support and exploring post-quantum cryptography for next-generation security.
- Driving performance optimization across the edge network and core infrastructure.
This is a role for engineers who love building systems that operate at global scale, thrive on technical depth, and want to shape the future of web infrastructure.
What We’re Looking For
We’re looking for backend engineers with strong distributed systems experience and the ability to design, implement, and scale complex infrastructure.
You’ll bring:
- Proven experience with distributed systems, CDN, caching, or ingress infrastructure.
- Go experience in production (C/C++ backgrounds highly transferable).
- Deep understanding of the HTTP layer and modern cloud networking.
- Experience running systems at scale in a cloud product or infrastructure environment.
- Bonus: experience in Linux kernel tuning, performance optimization, or relevant open-source contributions.
This role is ideal for engineers who are hands-on, performance-oriented, and eager to work on problems of scale.
Why Join
You’ll join a team that values technical excellence, autonomy, and impact-where your work directly shapes how developers build and deploy at the edge.
We operate globally, handle traffic at massive scale, and give engineers the ownership to build systems that redefine what’s possible in web performance and reliability.
We’re a remote-first organization that empowers engineers to make meaningful architectural decisions, ship quickly, and see their impact on real-world products at scale.

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Senior Software Engineer – Lua
San Francisco
$200000 - $280000
+ Data Engineering
PermanentSan Francisco, California
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Senior Software Engineer – Lua
Remote (US) | $200,000 – $280,000 base + equity + benefits
A market leader in cloud infrastructure and developer tooling is seeking a Senior Software Engineer to help design, scale, and optimize a next-generation global CDN. This team builds the backbone of high-performance web delivery-handling billions of requests per day and powering some of the fastest, most reliable online experiences in the world.
The Role
As part of the CDN Infrastructure team, you’ll build and enhance distributed systems that make the internet faster and more resilient. You’ll design large-scale systems, write production-grade code, and work closely with product and infrastructure engineers to deliver high-impact improvements in routing, caching, and network performance.
What You’ll Do
- Design, implement, and optimize new CDN features and edge performance improvements
- Diagnose and reduce latency across a global network serving petabytes of data
- Improve reliability and scalability for billions of daily requests
- Build internal tools and workflows for infrastructure developers (primarily in Lua)
- Collaborate across teams to deliver next-generation web infrastructure
What We’re Looking For
- 5+ years of professional experience with Lua
- Deep understanding of HTTP, web servers, and CDN architecture
- Proven experience with distributed systems and large-scale performance optimization
- Strong problem-solving skills and a passion for experimentation
- Bonus: experience with Golang or other backend languages
Why Join
- Work on systems that serve petabytes of data and billions of requests daily
- Competitive compensation including equity and full health coverage
- Flexible, remote-friendly work environment
- Opportunity to shape the next generation of internet-scale infrastructure

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Senior Machine Learning Scientist
San Francisco
$180000 - $200000
+ Data Science & AI
PermanentSan Francisco, California
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Senior Machine Learning Scientist
Location: SF Bay Area – Hybrid (3 days/week onsite)
Salary: $180-200k base + Equity
A leading commerce marketplace with 130M+ users and billions of daily events is hiring a Senior Machine Learning Scientist to drive innovation across personalization, feed ranking, computer vision, and GenAI. You’ll work on high-impact ML solutions that directly shape user experience and business outcomes at massive scale.
What You’ll Do
- Lead full-lifecycle ML projects from idea to production across core areas like personalization, trust & safety, marketing optimization, and user engagement.
- Own the ML development process-from data exploration and feature engineering to model training, deployment, and post-launch optimization.
- Collaborate cross-functionally with ML engineers, PMs, and business stakeholders to identify and prioritize high-leverage initiatives.
- Experiment with emerging AI techniques, including GenAI, computer vision, and LLMs, to push the boundaries of what’s possible on the platform.
- Build scalable, production-ready ML systems that enhance key metrics like retention, engagement, and conversion.
What You Bring
- 3+ years of experience building, deploying, and maintaining ML models at scale.
- Deep expertise in Python, SQL, Spark (PySpark or Scala) and frameworks like PyTorch or TensorFlow.
- Proven track record in consumer tech or large-scale marketplaces companies.
- Hands-on experience with CNNs, Transformers, Vision Transformers, and personalization algorithms.
- Background in user behavior modeling, search relevance, or real-time data systems.
- Strong foundation in experimentation (A/B testing), statistics, and applied ML.
- Exceptional communication skills and the ability to translate technical insights into business value.
- Experience with LLMs, RAG (Retrieval-Augmented Generation), or PEFT (Parameter-Efficient Fine-Tuning) techniques.

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Staff Growth Analyst
San Francisco
$20000 - $240000
+ Advanced Analytics & Marketing Insights
PermanentSan Francisco, California
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Staff Growth Product Analyst
US Remote
$200-240k base + equity
About the Role:
We’re looking for a Staff Growth Product Analyst to drive impactful growth analytics for an innovative AI-driven development platform that’s transforming how developers create and deploy user interfaces. Leveraging cutting-edge AI technologies, this platform enables rapid prototyping and significantly accelerates product development, enhancing user growth, engagement, and overall developer experience.
Role Highlights:
- Deep dive into user behaviors, journeys, and growth funnels to uncover opportunities for enhanced engagement and acquisition.
- Generate actionable insights aimed at boosting critical growth metrics like DAU, MAU, and user retention.
- Design, execute, and analyze A/B tests to drive informed decision-making and product improvements.
- Influence strategic decision-making through rigorous data analysis and compelling recommendations.
- Collaborate cross-functionally with product managers, engineers, data scientists, and growth marketers to drive continuous product improvement and iteration.
Who You Are:
- You have 7+ years of proven expertise in growth and product analytics, ideally within early-stage or innovation-driven product environments.
- You’re adept at conducting thorough funnel analyses, spotting rapid experimentation opportunities, and recommending actionable product enhancements.
- You thrive on solving complex analytical problems with high energy and intellectual rigor.
- Experienced with modern data stack (e.g., Snowflake, dbt, Preset, Hashboard, Kafka, Fivetran, Omni, Hex, Sigma, SQL, Python).
- You have previous experience (or a strong interest) in working with AI or machine learning-driven products.
Ideal Fit: You’re a driven, collaborative analytics expert passionate about influencing groundbreaking products. Excited by high-paced, innovative environments, you’re motivated by measurable impact and shaping the future of developer-focused, AI-powered technologies.

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Principal Software Engineer – Data Platform
San Francisco
$230000 - $280000
+ Data Engineering
PermanentSan Francisco, California
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Principal Software Engineer – Data Platform
San Francisco, CA (Remote Eligible – US Only)
$230K-$280K base + equity
Are you ready to lead the design and build of a world-class data platform from the ground up?
A high-growth, product-led tech company is looking for a Principal Software Engineer to lead the build-out of a modern, scalable data platform from the ground up. If you’re excited about solving massive data challenges and shaping the infrastructure that supports real-time analytics and AI/ML at scale, this role is for you.
As the most senior technical IC on the Data Platform team, you’ll partner with leadership across Engineering, Product, Security, and Compliance to design a low-latency, cloud-native data architecture using best-in-class tools like Kafka, Iceberg, ClickHouse, Tinybird, and Snowflake.
Why this role?
- Join a growing Data Platform team
- Own the technical vision and architecture end-to-end
- Tackle petabyte-scale data challenges and real-time streaming use cases
- Work with a cutting-edge tech stack (Kafka, Iceberg, ClickHouse, Snowflake, etc.)
- Drive platform evolution to support AI/ML and company-wide analytics
What You’ll Do
- Design and build a next-gen data platform to power product and internal use cases
- Architect for batch + streaming, scalability, fault tolerance, and low latency
- Lead data modeling, warehousing, governance, and ingestion best practices
- Champion engineering excellence and mentor senior engineers
- Align technical decisions with long-term business strategy
- Optimize for performance, cost, and resiliency in a modern cloud environment
What We’re Looking For
- 8+ years of experience in data engineering or platform architecture
- 5+ years at the Principal Engineer level or equivalent
- Deep expertise with Kafka (and its ecosystem), streaming data systems
- Strong experience with ClickHouse, Iceberg, Snowflake, or similar tools
- Cloud-native architecture expertise (AWS, GCP, or Azure)
- Track record of designing data systems for compliance and governance
- Experience scaling systems to support petabyte-level workloads
- Excellent communication, collaboration, and leadership skills
- Bonus: Experience enabling AI/ML platforms or preparing for IPO-scale growth

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Staff Data Analyst, Product Analytics
San Francisco
$200000 - $240000
+ Advanced Analytics & Marketing Insights
PermanentSan Francisco, California
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Staff Product Analyst
Location: San Francisco (Remote Eligible)
Salary: $200K-$240K base + Equity
We’re hiring a Staff Product Analyst for a hyper-growth, Series E AI company valued at $3B+. This is an opportunity to play a key role in shaping product strategy and growth by leveraging data to drive decisions, optimize user experiences, and unlock new opportunities.
What You’ll Do:
- Shape product strategy with data-driven insights – Define key metrics, track user behavior, and identify trends that impact engagement and retention.
- Deep-dive into user journeys – Uncover friction points and growth levers to enhance adoption, conversion, and retention.
- Optimize experimentation and A/B testing – Design and analyze tests to improve product features, pricing, and personalization strategies.
- Develop self-service analytics tools – Build dashboards and automated reporting to empower teams with real-time data.
- Partner with Product, Engineering & Leadership – Translate complex data into clear, actionable recommendations to improve product performance and business outcomes.
What We’re Looking For:
- 7+ years of experience in Product Analytics, preferably within high-growth tech companies.
- Expert SQL skills and experience working with large-scale product datasets.
- Proficiency in Python or R, with a strong foundation in statistical analysis and experimentation.
- Hands-on experience with A/B testing methodologies and user segmentation.
- Experience with ELT data modeling and BI tools like Looker, Omni, or Hashboard.
- Strong executive communication skills, with the ability to influence product decisions through data.
- Thrives in a fast-paced, high-impact environment, with a passion for uncovering insights that drive product growth.

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Staff Product Analyst
$200000 - $250000
+ Advanced Analytics & Marketing Insights
PermanentCalifornia
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Staff Data Analyst, Product Analytics
Location: Remote
Salary: $200-250k
Join a rapidly growing, Series C cloud platform company recognized for innovation and leadership in modern technology. This high-impact role offers the opportunity to drive strategy, shape growth, and turn complex data into actionable insights that improve product performance and streamline operational efficiency.
About the Role
The Staff Data Analyst will play a key role in defining critical business metrics, creating scalable visualizations, and automating reporting systems. The position involves collaborating across teams to uncover insights, streamline processes, and optimize data usage to support growth.
Key Responsibilities
- Develop and implement key business metrics to measure performance and identify opportunities.
- Create dynamic visualizations and automate reporting workflows to support decision-making.
- Build and enhance analytics datasets to optimize growth strategies and reduce costs.
- Collaborate with product, business, and leadership teams to deliver data-driven solutions.
- Prototype dashboards and data tools to improve workflows and promote best practices.
- Support data accessibility by maintaining analytical technologies that ensure timely access to data.
- Shape the analytics roadmap, aligning data initiatives with organizational goals.
About You
- 6+ years of experience in a data-focused role such as Data Analyst, Product Analyst, or Business Analyst.
- Proficient in SQL and experienced in working with complex datasets.
- Familiarity with Python or R and applied statistics.
- Expertise in ELT data modeling and tools like Hashboard, Looker, or Omni.
- Strong communication skills with the ability to translate data into actionable insights.
- Adept at collaborating in a fast-paced, cross-functional environment.
This is an opportunity to join a dynamic team where data is at the core of driving decisions and innovation. If you’re passionate about transforming data into meaningful outcomes and enjoy working on high-impact projects, this role offers the chance to make a lasting contribution.

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Staff Data Scientist, Growth
Remote
$200000 - $250000
+ Advanced Analytics & Marketing Insights
PermanentCalifornia
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Job Title: Staff Data Scientist
Location: Remote (US Only)
Salary: $200-250k base + equity
About the Company:
Join a mission-focused organization dedicated to revolutionizing global education by providing innovative learning experiences beyond the traditional classroom. The company’s app is widely used across U.S. schools and impacts millions of children worldwide.
Their team is made up of talented and creative professionals with backgrounds in education and top consumer internet companies such as Instagram, Netflix, Dropbox, Stripe, and Uber. They cultivate an environment where top talent can thrive. If you’re eager to work with some of the best minds in the industry, we encourage you to apply!
Position Summary:
As a Staff Data Scientist, you will be a key player in developing the world’s leading consumer education platform. You will be part of a high-achieving, cross-functional team working closely with product, engineering, and design to shape the company’s strategic direction and tackle challenging product and business issues.
Key Responsibilities:
- Utilize data-driven insights to inform decisions and drive our brand toward new milestones
- Work collaboratively with various teams to discover user insights and pinpoint essential product improvements
- Design and analyze AB/multivariate tests to derive actionable conclusions that boost user engagement
- Lead data science projects, influencing strategic choices and addressing complex problems
Your Skills and Experience:
- 8+ years of experience in data science and product analytics
- Experience in the consumer technology sector
- Proficient in writing efficient SQL queries for large datasets
- Skilled in designing and analyzing A/B tests
- Strong understanding of growth strategies for consumer products
- Experience working in fast-paced startup environments
- Excellent verbal and written communication skills
- Strategic thinker with a keen focus on product development
- Innovative approach to using data to drive product strategy

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