Senior Data Scientist – Machine Learning & Retail Analytics Expert (Part Time Flexible)

Posted 2026-05-06
Remote, USA Full-time Immediate Start

Join arenaflex as a Senior Data Scientist

Are you passionate about transforming retail operations through the power of data science and machine learning? Do you thrive on building sophisticated forecasting algorithms that solve complex business challenges? arenaflex is seeking a talented and experienced Senior Data Scientist to join our growing analytics team and help revolutionize how we understand and predict consumer behavior in the retail space.

At arenaflex, we believe that data is the backbone of modern retail innovation. As a market leader in retail technology solutions, we leverage advanced mathematical and statistical methodologies to drive decision-making across our organization. Our team of brilliant data scientists, engineers, and business analysts work collaboratively to turn raw data into actionable insights that shape the future of retail operations.

This is a unique opportunity for a seasoned data professional who wants to make a significant impact while enjoying the flexibility of part-time work. Whether you're looking to transition into a more balanced schedule, exploring consulting opportunities, or simply want to apply your expertise in a dynamic environment, arenaflex welcomes your application.

What You'll Do at arenaflex

As a Senior Data Scientist at arenaflex, you will play a pivotal role in shaping our analytical capabilities and driving innovation across the retail division. Your expertise in mathematical and statistical modeling will be instrumental in developing solutions that optimize operations, enhance customer experiences, and deliver measurable business value.

Key Responsibilities


  • Algorithm Development: Lead the design and implementation of advanced forecasting algorithms that leverage mathematical and statistical principles to solve complex retail business challenges. You will create long-term prediction models that inform inventory management, demand forecasting, and supply chain optimization.

  • Process Automation: Transform manual retail operations by developing automated decision-making systems powered by sophisticated mathematical and statistical models. Your work will reduce human intervention in routine processes while improving accuracy and efficiency.

  • Data Analysis & Interpretation: Collect, organize, analyze, interpret, and summarize massive volumes of time-series data to generate key insights that drive innovation. You will identify patterns, trends, and anomalies that lead to new applications and business opportunities.

  • Business Problem Solving: Analyze complex and rich datasets, examine business problems, develop problem statements, define meaningful metrics, and conduct feasibility studies that guide strategic initiatives.

  • Exploratory Data Analysis: Perform comprehensive data exploration tasks, extract meaningful insights, and create compelling storyboards that communicate findings to both technical and non-technical stakeholders.

  • Root-Cause Analysis: Present clear and accurate root-cause analysis to data scientists and leadership team members, translating complex findings into actionable recommendations.

  • Machine Learning Pipeline Development: Build training workflows for machine learning algorithms operating on tens of millions of data points. Create end-to-end algorithmic solutions including data understanding, feature engineering, model development, validation, and production deployment.

  • Large-Scale Implementation: Lead and develop large-scale implementations of machine learning models and algorithmic solutions using rich retail data sources.

  • Model Performance Optimization: Continuously review model performance, identify improvement opportunities, and implement enhancements that increase accuracy and reliability.

  • Cross-Functional Collaboration: Work closely with our global AI team, scientists, engineers, and business partners to identify and lead new opportunities that deliver measurable business value.

  • Technology Stack Development: Utilize your expertise in machine learning, probability theory and statistics, optimization theory, deep learning, data pipeline engineering, distributed systems, database architecture, linear programming, and data mining to build robust analytical solutions.

  • Programming & Development: Apply your skills in Python, SQL, R, Spark, C, JavaScript, Scala, Hadoop, Hive, HTML, MATLAB, Java, and Command Shell programming to prototype individual components of data science solutions.

  • Best Practices Advocacy: Champion excellent software engineering practices throughout the organization and prototype individual components of data science solutions.

What We're Looking For

Essential Qualifications

To succeed in this role at arenaflex, you must possess:


  • Educational Background: A minimum of a Master's degree in Mathematics, Statistics, or a closely related quantitative field.

  • Experience: At least seven (7) years of experience as a data or machine learning scientist (or similar title) with a proven track record of:

    • Conducting advanced machine learning activities including regression, clustering, and forecasting

    • Driving the development and implementation of analytical and data science modeling solutions

    • Applying data mining, machine learning, or text mining techniques

    • Utilizing mathematical concepts, algorithms, and computational complexity analysis

    • Collaborating with colleagues to deliver business value

    • Presenting findings and reviews to stakeholders



  • Technical Proficiency: Demonstrated expertise in Python, SQL, R, SAS, risk assessment, and data manipulation.

  • Data Handling Experience: A minimum of two (2) years of experience working with massive datasets and solving complex business problems.

  • End-to-End Development: At least two (2) years of experience delivering data science solutions including problem statement development, feature engineering, model development, assessment and testing, and production deployment.

  • Production Environment: Experience with productionizing, auditing, and monitoring data science models in online environments.

  • Big Data Technologies: Working knowledge of Hive or Hadoop, machine learning, text mining, and Spark.

Alternative Qualification Pathway

We understand that exceptional talent comes in various forms. In lieu of the seven years of experience with a Master's degree, arenaflex will also consider candidates who possess:


  • A doctorate (PhD) in Mathematics, Statistics, or a closely related quantitative field, AND

  • At least four (4) years of experience as a data or machine learning scientist demonstrating the same competencies outlined above.

Required Skills & Competencies

Beyond formal qualifications, arenaflex seeks candidates who demonstrate:


  • Statistical Expertise: Deep understanding of statistical principles, probability theory, and advanced mathematical concepts that form the foundation of predictive modeling.

  • Machine Learning Mastery: Proficient in regression, clustering, forecasting, deep learning, and modern machine learning techniques.

  • Optimization Knowledge: Strong foundation in optimization theory and linear programming to develop efficient algorithmic solutions.

  • Distributed Systems: Understanding of distributed systems architecture and the ability to work with large-scale data processing frameworks.

  • Database Architecture: Experience with database design and architecture to support analytical workloads.

  • Communication Skills: Excellent ability to translate complex technical findings into clear, actionable insights for diverse audiences.

  • Problem-Solving Mindset: Strong analytical thinking with the ability to approach ambiguous business challenges with creative solutions.

  • Collaboration: Proven ability to work effectively with cross-functional teams including engineers, scientists, and business stakeholders.

Why Join arenaflex?

Career Growth & Learning Opportunities

At arenaflex, we invest in your professional development. As part of our team, you will have access to cutting-edge projects that push the boundaries of what's possible in retail analytics. You'll work alongside industry experts, participate in advanced research initiatives, and continuously expand your skill set through challenging real-world problems.

Our collaborative environment encourages knowledge sharing and mentorship. You'll have the opportunity to lead initiatives, mentor junior team members, and contribute to the broader data science community within arenaflex. The exposure to diverse business problems and access to vast retail datasets provide an unparalleled learning environment.

Work-Life Balance & Flexibility

We understand that peak performance requires balance. This part-time position offers the flexibility you need to maintain a healthy work-life integration while continuing to make meaningful contributions to our organization. Enjoy the autonomy to structure your schedule while being part of a supportive team that values results over face time.

Additionally, this role offers the option to telecommute from anywhere within the United States, giving you the freedom to work from the environment where you perform best.

Compensation & Benefits

arenaflex offers competitive compensation packages that reflect your expertise and contributions. Our comprehensive benefits package includes:


  • Competitive hourly or project-based compensation

  • Flexible work arrangements

  • Professional development opportunities

  • Access to cutting-edge tools and technologies

  • Collaborative team environment

  • Exposure to innovative retail analytics projects

Company Culture

At arenaflex, we foster a culture of innovation, collaboration, and excellence. We believe that diverse perspectives drive better solutions, and we welcome candidates from all backgrounds who bring unique experiences and viewpoints to our team. Our inclusive environment supports continuous learning and encourages creative problem-solving.

Join a team where your contributions matter, your voice is heard, and your career growth is invested in. At arenaflex, you're not just another employee – you're a valued partner in our mission to transform retail through data-driven innovation.

Ready to Make an Impact?

If you're excited about applying your advanced data science expertise to solve complex retail challenges and want to be part of a team that values innovation, collaboration, and flexibility, we want to hear from you. This is your opportunity to join arenaflex and help shape the future of retail analytics.

Take the next step in your career and apply today. We can't wait to see how your expertise will help arenaflex continue to lead the way in retail innovation.

arenaflex is an equal opportunity employer. We celebrate diversity and are committed to creating an inclusive environment for all employees.

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