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Posted Apr 7, 2026

**Experienced Full Stack Data Scientist – Search Retrieval and Machine Learning Development**

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Are you a highly motivated and skilled Data Scientist looking for a challenging role that combines innovation, performance, and collaboration? Do you have a passion for designing and building machine learning systems that drive business results? Look no further! arenaflex is seeking an experienced Full Stack Data Scientist to join our team and contribute to the development of our search retrieval and machine learning capabilities. **About arenaflex** arenaflex is a leading online job search and employment services platform that operates globally. Our mission is to help people get jobs and provide a welcoming and inclusive environment for our employees. We're committed to building a diverse and dynamic team that shares our passion for innovation and excellence. As a Full Stack Data Scientist at arenaflex, you'll be part of a collaborative and fast-paced team that's dedicated to delivering exceptional results. **Job Responsibilities** As a Full Stack Data Scientist, you'll play a key role in improving and optimizing our search algorithms, collaborating with cross-functional teams, and mentoring junior engineers and data scientists. Your responsibilities will include: * Collaborating with cross-functional teams to improve and optimize search algorithms for advanced accuracy, relevance, and user experience * Experimenting with Proof of Concept machine learning version improvements, scaling them to production, and running iterative A/B experiments to enhance our matching generation * Defining and clarifying project objectives, deliverables, and achievement standards in collaboration with cross-functional teams * Acting as a bridge between technical and non-technical stakeholders, facilitating effective communication and understanding of project goals and outcomes * Mentoring and developing junior software engineers, data scientists, and machine learning engineers across teams * Breaking down large machine learning projects into manageable components that provide incremental business value and leading the team through implementation * Representing 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 (ICLR) **Skills and Competencies** We're looking for a highly skilled and motivated individual with a deep passion for designing and building machine learning systems. The ideal candidate will have: * A Bachelor's degree in Computer Science, Mathematics, or a related field * 3+ years of industry experience as an AI Engineer, Data Scientist, or Machine Learning Engineer * Prior experience in deploying impactful machine learning solutions to large-scale production systems, collaborating across teams * Solid understanding of data systems and algorithms * Sense of ownership and responsibility as a key contributor in the technical and product domains * Knowledge and hands-on experience working with Deep Learning Libraries (e.g., Torch, TensorFlow, etc.) * Excellent written and verbal communication in English, with the ability to communicate effectively with technical and business audiences **Salary and Benefits** arenaflex offers a competitive salary range of $30-40 per hour, with opportunities for quarterly bonuses, Restricted Stock Units (RSUs), Paid Time Off coverage, and other region-specific benefits. Our Total Rewards package is designed to support the well-being and success of our employees, including: * Comprehensive paid time off coverage to relax, explore, and address life's unexpected challenges * Well-being programs that support mental and physical health * A range of benefits to support employees, their pets, children, and companions * Opportunities for professional growth and development through training, mentorship, and career advancement **Why Join arenaflex?** At arenaflex, we're passionate about creating a welcoming and inclusive environment that values diversity, equity, and inclusion. We're committed to building a team that reflects the communities we serve and is dedicated to making a positive impact. As a Full Stack Data Scientist at arenaflex, you'll have the opportunity to: * Contribute to the development of innovative machine learning solutions that drive business results * Collaborate with a talented and diverse team of engineers, data scientists, and product managers * Work on complex and challenging projects that require creativity, critical thinking, and problem-solving skills * Develop your skills and expertise through training, mentorship, and career advancement opportunities * Make a positive impact on the lives of job seekers and employers around the world **How to Apply** If you're a highly motivated and skilled Data Scientist looking for a challenging role that combines innovation, performance, and collaboration, we encourage you to apply! Please submit your resume, cover letter, and portfolio to [insert contact information]. We can't wait to hear from you!