Remote Senior Data Analyst – E‑Commerce Data Science, Recommendation Engine & A/B Testing – $24/hr – Full‑Time (Boston, USA)

About arenaflex

arenaflex is a global leader in online retail, delivering millions of products to customers worldwide through a sophisticated blend of technology, design, and logistics. Our mission is to make shopping effortless, personalized, and delightful for every shopper, no matter where they are. With a data‑driven culture at its core, arenaflex invests heavily in cutting‑edge analytics, artificial intelligence, and machine learning to power the next generation of recommendation engines, pricing strategies, and customer experiences. As a remote‑first organization, we empower talent across the globe to collaborate, innovate, and grow while enjoying the flexibility of working from anywhere.

Position Summary

We are seeking a highly motivated and technically proficient Senior Data Analyst to join our Insights & Recommendations Research team. In this role, you will harness arenaflex’s massive data assets to uncover hidden patterns, validate new recommendation algorithms, and drive strategic product decisions. You will work hand‑in‑hand with product managers, data scientists, AI engineers, and senior leadership to translate complex data into actionable insights that shape the future of our e‑commerce platform.

Key Responsibilities

• Design, implement, and analyze A/B experiments for novel recommendation algorithms, ensuring rigorous statistical validity and clear business impact.
• Develop and maintain KPI dashboards, anomaly detection systems, and high‑level forecasting models that monitor the health of recommendation pipelines.
• Perform exploratory data analysis (clustering, segmentation, dimensionality reduction) to generate new hypotheses and uncover growth opportunities.
• Build, test, and iterate on internal tooling—including a custom QA framework—to simulate algorithm performance before production rollout.
• Collaborate closely with product, design, and AI teams to translate analytical findings into product roadmaps and feature specifications.
• Mentor junior analysts, share best practices, and champion a data‑centric culture across the organization.
• Communicate insights through clear visualizations, executive‑level presentations, and written reports that influence cross‑functional decision‑making.

Essential Qualifications

• Bachelor’s degree in Computer Science, Statistics, Mathematics, or a related quantitative field (Master’s preferred).
• 5+ years of hands‑on experience in data analysis or data science within an e‑commerce or technology‑driven environment.
• Deep expertise with SQL (complex queries, stored procedures, performance tuning, string parsing, and familiarity with data warehouses such as Vertica, Hive, or Snowflake).
• Advanced proficiency in Python, including libraries such as Pandas, NumPy, Scikit‑learn, Matplotlib, and Jupyter notebooks.
• Proven track record designing and executing A/B tests, interpreting results, and translating findings into product improvements.
• Experience applying machine‑learning models (decision trees, random forests, deep learning, etc.) to solve real‑world business problems.
• Exceptional written and verbal communication skills, with the ability to convey complex technical concepts to non‑technical stakeholders.
• Strong analytical mindset, business acumen, and a proactive, ownership‑driven attitude.

Preferred Qualifications & Additional Skills

• Master’s or Ph.D. in a quantitative discipline.
• Hands‑on experience with big‑data processing frameworks (Spark, Hadoop) and cloud platforms (AWS, GCP, Azure).
• Familiarity with experiment‑design tools such as Optimizely, Google Optimize, or internal platforms.
• Knowledge of recommendation‑system architectures (collaborative filtering, content‑based, hybrid models).
• Exposure to data‑visualization tools like Tableau, Looker, or Power BI.
• Demonstrated ability to lead cross‑functional projects in fast‑paced, ambiguous environments.

Core Competencies for Success

• Analytical Rigor: Ability to dissect large, messy datasets, identify root causes, and propose data‑driven solutions.
• Collaboration: Comfortable partnering with engineers, designers, product managers, and senior leaders to align on goals.
• Innovation: Eagerness to experiment with new methodologies, tools, and frameworks that push the boundaries of recommendation technology.
• Communication: Clear storytelling through charts, dashboards, and concise executive summaries.
• Adaptability: Thrive in a high‑velocity environment where priorities shift quickly and new challenges emerge daily.

Career Growth & Learning Opportunities

At arenaflex, your professional development is a priority. As a Senior Data Analyst, you will have access to:

• Mentorship from industry‑leading data scientists and AI researchers.
• Annual learning stipend for conferences, certifications, or advanced coursework.
• Opportunities to lead high‑impact projects that influence the company’s strategic direction.
• Cross‑functional rotations that broaden your expertise across product, engineering, and business domains.
• A clear promotion pathway toward Principal Analyst, Data Science Manager, or Product Analytics Lead roles.

Work Environment & Culture at arenaflex

arenaflex fosters an inclusive, collaborative, and innovative culture where every voice matters. Our remote‑first policy means you can work from anywhere in the United States while staying connected through weekly virtual coffee chats, quarterly in‑person meet‑ups, and a vibrant internal community platform. We celebrate diversity, encourage curiosity, and support work‑life balance through flexible hours, generous paid time off, and mental‑health resources.

Compensation, Perks & Benefits

• Competitive hourly rate of $24/hr, paid bi‑weekly.
• Comprehensive health, dental, and vision insurance plans.
• 401(k) retirement plan with company match.
• Generous paid parental leave and family‑care benefits.
• Remote work allowance covering home‑office equipment, internet, and co‑working space access.
• Annual performance bonus based on individual and company outcomes.
• Employee assistance program, wellness stipend, and access to virtual fitness classes.
• Inclusive employee resource groups (ERGs) and regular diversity training.

Commitment to Accessibility & Equal Opportunity

arenaflex is fully committed to providing equal employment opportunities to all individuals, including those with disabilities. We will make reasonable accommodations for qualified applicants with disabilities unless doing so would cause an undue hardship on the operation of our business. If you require assistance during the application or interview process, please let us know.

How to Apply

If you are passionate about turning data into strategic advantage, love solving complex problems, and thrive in a collaborative, fast‑moving environment, we want to hear from you. Click the link below to submit your application, attach your resume, and share a brief cover letter outlining why you’re the perfect fit for arenaflex’s Insights & Recommendations Research team.

Apply Now – Join arenaflex!

Closing Statement

At arenaflex, your analytical expertise will directly influence the shopping experience of millions of customers worldwide. Join us, and help shape the future of e‑commerce through data‑driven innovation. We look forward to welcoming a curious, results‑oriented Senior Data Analyst to our dynamic team.