Experienced Staff Data Scientist – Search Retrieval & Matching Science (Remote, Part-Time)

About arenaflex

At arenaflex, we are on a mission to help people find jobs that they love. As a global leader in employment search and recruitment solutions, we connect millions of job seekers with opportunities that align with their skills, aspirations, and career goals every single day. Since our founding, we have grown to become one of the most trusted and widely used job search platforms in the world, serving both job seekers and employers across industries and geographies.

We believe that the right job can transform a person's life, and we're passionate about making that connection happen. Our team is made up of innovators, problem-solvers, and dedicated professionals who share a common goal: to create the best possible experience for job seekers and employers alike. We foster an inclusive, collaborative, and forward-thinking work environment where every team member has the opportunity to make a meaningful impact.

As we continue to grow and evolve, we are looking for talented individuals who share our enthusiasm for innovation and are excited about the possibility of helping millions of people find their dream jobs. If you're ready to join a team that values creativity, diversity, and the power of technology to change lives, arenaflex is the place for you.

The Role: Staff Data Scientist – Search Retrieval & Matching Science

We are seeking a highly skilled and experienced Staff Data Scientist to join our Search Retrieval and Matching Science team. In this pivotal role, you will be at the forefront of improving and optimizing our search algorithms, ensuring that job seekers find the most relevant opportunities quickly and efficiently. Your work will directly impact how millions of people interact with our platform, making it easier for them to discover roles that match their skills and aspirations.

As a Staff Data Scientist at arenaflex, you will serve as a technical leader within your team. You will own critical workstreams, drive technical direction, and mentor other team members to achieve ambitious product and technical goals. This is an excellent opportunity for someone who thrives in a fast-paced, data-driven environment and wants to make a tangible difference in the lives of job seekers worldwide.

What You'll Do

Your day-to-day responsibilities will span a wide range of technical and leadership activities. You will be expected to dive deep into data, formulate complex problem statements, and develop predictive models that can scale to production environments. Here are the key responsibilities you will own:

• Algorithm Enhancement: Collaborate with cross-functional teams to enhance and optimize search algorithms for improved accuracy, relevance, and overall user experience. Your work will ensure that job seekers receive the most appropriate job recommendations based on their skills, preferences, and search history.
• Machine Learning Innovation: Experiment with Proof of Concept Machine Learning model developments, scale them to production, and run iterative A/B experiments to improve our matching technology. You will work closely with other teams to ensure seamless integration and maximum impact.
• Project Leadership: Define and clarify project objectives, deliverables, and success criteria in collaboration with cross-functional teams. You will break down large Machine Learning projects into manageable pieces that deliver incremental business value.
• Stakeholder Communication: Act as a bridge between technical and non-technical stakeholders, facilitating effective communication and understanding of project goals and outcomes. You will translate complex technical concepts into actionable insights for business leaders.
• Team Mentorship: Mentor and develop other software engineers, data scientists, and Machine Learning Engineers across teams. You will guide junior team members, share best practices, and help build a high-performing technical team.
• Technical Representation: Represent arenaflex at major Machine Learning conferences such as Neural Information Processing Systems (NeurIPS), International Conference on Machine Learning (ICML), and International Conference on Learning Representations (ICML). Your thought leadership will help position arenaflex as an industry innovator.
• Cross-Functional Collaboration: Collaborate with product managers, engineers, designers, and other stakeholders to deliver exceptional user experiences. You will evangelize your team's work and ensure alignment with broader company objectives.

What We're Looking For

We are looking for a passionate data scientist who loves designing and building machine learning systems, thrives on thought-provoking challenges, and is eager to learn new technologies. The ideal candidate will bring a deep commitment to helping people find meaningful employment and will be excited about working with cutting-edge technology to solve complex problems.

Essential Qualifications

• Educational Background: Bachelor's degree in Computer Science, Mathematics, Statistics, or a related technical field. Advanced degrees are a plus but not required.
• Industry Experience: Minimum of 3+ years of professional experience as an AI Engineer, Data Scientist, or Machine Learning Engineer in a production environment.
• Production ML Experience: Prior success in deploying impactful Machine Learning solutions to large-scale production systems while collaborating across teams. You should have a proven track record of taking models from concept to deployment.
• Technical Proficiency: Solid understanding of data structures, algorithms, and software engineering principles. Strong programming skills in Python, Java, or similar languages.
• Deep Learning Expertise: Knowledge and hands-on experience working with Deep Learning Libraries such as PyTorch, TensorFlow, or Keras. You should be comfortable building and training neural networks for various NLP and search-related tasks.
• Search Retrieval Knowledge: Experience with search retrieval methodologies, information retrieval, and recommendation systems is highly desirable.
• Communication Skills: Excellent written and verbal communication in English, with the ability to effectively communicate with both technical and business audiences. You should be comfortable presenting complex ideas to diverse stakeholders.
• Ownership Mindset: Strong sense of ownership and responsibility as a key contributor in both technical and product domains. You should be self-motivated and take initiative to drive projects forward.

Preferred Qualifications

• Advanced degree (Master's or PhD) in Computer Science, Machine Learning, or a related field


• Experience with large-scale distributed computing systems


• Familiarity with search engine optimization and ranking algorithms


• Experience with A/B testing and statistical analysis


• Knowledge of candidate-job matching and recommendation systems


• Previous experience in the HR technology or recruitment industry

Why Join arenaflex?

At arenaflex, we believe that our people are our greatest asset. We are committed to creating an environment where every team member can thrive both professionally and personally. Here's what you can expect when you join our team:

Career Growth and Learning Opportunities

We invest heavily in the growth and development of our employees. As a Staff Data Scientist at arenaflex, you will have access to extensive learning resources, mentorship programs, and opportunities to attend industry-leading conferences. We encourage continuous learning and provide support for professional certifications, advanced degrees, and skill development. Your career path at arenaflex is limited only by your ambition—we offer clear progression routes for those who are ready to take on greater challenges.

Competitive Compensation and Benefits

We recognize that your time and expertise are valuable. That's why we offer a competitive salary range of $30-40 per hour for this part-time, remote position. In addition to base compensation, we provide a comprehensive total rewards package that includes quarterly performance bonuses, equity opportunities through Restricted Stock Units (RSUs), and generous paid time off. We also offer region-specific benefits designed to support you and your family's health, wellness, and financial security.

Flexible Work Environment

We understand that work-life balance is essential for sustained productivity and well-being. Our flexible paid time off policy gives you the freedom to relax, explore, and handle life's unexpected surprises. Whether you need to take a mental health day, celebrate a personal milestone, or simply recharge, we've got you covered. Our remote work model allows you to work from the comfort of your home in Vermont while remaining fully connected to your team and the company's mission.

Well-Being Programs

Your health and well-being are our top priorities. We offer comprehensive well-being programs that support both your mental and physical health. From access to mental health resources and wellness coaching to gym membership subsidies and healthy lifestyle incentives, we are dedicated to ensuring you have the tools and support you need to live your best life. We also extend these benefits to your family members, including pets, because we know that a happy home life contributes to professional success.

Inclusive Culture

Belonging is the fuel that drives our mission to help everyone get jobs. At arenaflex, we are committed to fostering a diverse, inclusive, and equitable workplace where every individual feels safe, respected, and empowered to bring their authentic self to work. We have employee resource groups, inclusion initiatives, and a dedicated employee experience team that works tirelessly to ensure that every arenaflexian has a sense of community and belonging. We celebrate our differences and believe that diverse perspectives make us stronger and more innovative.

Making a Difference

Perhaps the most compelling reason to join arenaflex is the opportunity to make a real difference in people's lives. Every day, our platform helps millions of job seekers find meaningful employment that can transform their careers and their families' futures. As a Staff Data Scientist working on search retrieval and matching, you will be directly contributing to this mission. Your work will help ensure that the right candidates find the right jobs faster and more efficiently than ever before.

Equal Opportunity Employer

arenaflex is deeply committed to building a workplace and a global community where inclusion is not only valued but prioritized. We are proud to be an equal opportunity employer, seeking to create a welcoming and diverse environment. All qualified applicants will receive consideration for employment without regard to race, color, religion, gender, gender identity or expression, family status, marital status, sexual orientation, national origin, genetics, neuro-diversity, disability, age, or veteran status, or any other non-merit-based or legally protected grounds.

Apply Today

If you're ready to take the next step in your career and join a team that is passionate about helping people find jobs they love, we encourage you to apply for this position. At arenaflex, you'll work alongside talented individuals who share your commitment to innovation, excellence, and making a positive impact. We can't wait to see what you'll bring to our team.

Join arenaflex and help us transform the way people find jobs—one search at a time.