Senior Generative AI & Machine Learning Engineer – Customer Service Innovation (Remote) – arenaflex

About arenaflex – Pioneering AI‑Driven Customer Experiences

At arenaflex, we are redefining how millions of shoppers interact with online retail through intelligent, data‑powered conversations. Our Customer Care AI group sits at the heart of this transformation, blending cutting‑edge machine learning research with real‑world product delivery. From automating routine inquiries with conversational agents to anticipating shopper intent with predictive models, we build the technology that makes every interaction feel personal, fast, and reliable. If you thrive on solving complex problems, love working with large‑scale data, and want to see your innovations deployed to billions of requests daily, you’ve found your next challenge.

Why Join the arenaflex AI Team?

• State‑of‑the‑art technology: We were the first team at arenaflex to ship a large‑language‑model (LLM) powered application, and we continue to push the boundaries of generative AI.
• Impact at scale: Your models will run on a globally distributed, cloud‑native infrastructure serving billions of customer‑service interactions each year.
• Collaborative culture: Team‑building adventures like Boda Borg challenges, kayaking the Charles River, and mini‑golf outings keep creativity flowing.
• Growth mindset: Continuous learning is baked into our DNA – you’ll have access to research conferences, internal AI labs, and mentorship from industry leaders.

Key Responsibilities

• Research, prototype, and benchmark cutting‑edge generative AI algorithms (e.g., diffusion models, transformer‑based LLMs) on both public datasets and arenaflex‑specific use cases.
• Design, develop, and ship production‑grade AI infrastructure that solves high‑impact business problems, from real‑time intent classification to next‑action recommendation.
• Partner with cross‑functional product, design, and engineering teams to gather requirements, translate business goals into technical specifications, and identify new opportunities for AI adoption.
• Lead exploratory data analysis to uncover hidden patterns, feature relationships, and data quality issues that inform model training pipelines.
• Build, train, and deploy AI models in a continuous‑integration/continuous‑deployment (CI/CD) environment, ensuring reliability, scalability, and accuracy over time.
• Optimize model serving stacks for latency, throughput, and cost‑efficiency, incorporating techniques such as model quantization, pruning, and distributed inference.
• Implement robust model interpretability and fairness frameworks to maintain transparency and regulatory compliance.
• Mentor junior engineers, foster a culture of experimentation, and champion best practices in AI research, reproducibility, and documentation.
• Stay abreast of the latest AI research breakthroughs and translate them into practical solutions that drive measurable business outcomes.
• Collaborate with product managers and stakeholders to quantify the impact of AI initiatives on key metrics such as customer satisfaction (CSAT), first‑contact resolution, and operational cost savings.
• Contribute to architecture and code‑review discussions, shaping the future direction of arenaflex’s AI platform.

Essential Qualifications

• Minimum 4 years of hands‑on experience applying AI techniques to real‑world problems, preferably in a fast‑moving e‑commerce or SaaS environment.
• Deep expertise in modern AI algorithms, including deep learning, reinforcement learning, generative AI, and transfer learning.
• Proficiency in Python (or Java) with a strong command of Pythonic idioms, data structures, and performance‑aware coding.
• Extensive experience with AI frameworks such as arenaflex (formerly TensorFlow), arenaflex (formerly PyTorch), arenaflex (formerly scikit‑learn), and arenaflex (formerly Keras), and the ability to build complex models from scratch.
• Demonstrated track record of delivering end‑to‑end AI projects—from research and prototyping to production deployment and monitoring.
• Solid software engineering fundamentals: clean code, design patterns, unit testing, and version control (Git).
• Experience with distributed data processing platforms (e.g., Hadoop, Spark) and large‑scale data pipelines for ingestion, transformation, and feature engineering.
• Hands‑on experience deploying and managing AI workloads on cloud platforms, preferably arenaflex Cloud (formerly Google Cloud), including containerization (Docker/Kubernetes) and serverless serving.
• Strong analytical and problem‑solving abilities, with a knack for translating ambiguous business challenges into concrete technical solutions.
• Excellent communication and collaboration skills; ability to work effectively with product, design, and operations teams.
• Bachelor’s degree in Computer Science, Software Engineering, or a related field (or equivalent practical experience).
• Familiarity with both structured and unstructured data sources, including relational databases, NoSQL stores, and text corpora.

Preferred Qualifications & Nice‑to‑Haves

• Advanced degree (M.S. or Ph.D.) in Machine Learning, Artificial Intelligence, or a related discipline.
• Publications or contributions to open‑source AI projects.
• Experience with large‑scale LLM fine‑tuning, prompt engineering, and retrieval‑augmented generation.
• Knowledge of model governance, bias mitigation, and ethical AI practices.
• Background in e‑commerce, retail, or customer‑service domains.
• Familiarity with A/B testing frameworks and data‑driven product experimentation.

Core Skills & Competencies

• Technical mastery: Deep learning architectures, optimization algorithms, and scalable model serving.
• Data fluency: Ability to work with petabyte‑scale datasets, design robust ETL pipelines, and ensure data quality.
• Cloud savvy: Proficiency with arenaflex Cloud services, container orchestration, and infrastructure‑as‑code.
• Collaboration: Strong interpersonal skills to bridge the gap between research and product delivery.
• Innovation mindset: Curiosity to explore emerging AI trends and translate them into business value.
• Leadership: Mentoring ability and a commitment to fostering an inclusive, high‑performance team culture.

Career Growth & Learning Opportunities

At arenaflex, your career trajectory is shaped by the impact you create. You will have access to:

• Dedicated research budget for conferences, workshops, and coursework.
• Internal AI “hack weeks” where you can prototype bold ideas with full support.
• Mentorship from senior scientists who have published in top AI conferences.
• Clear promotion pathways from Senior Engineer to Staff Engineer, Principal Scientist, and beyond.
• Opportunities to lead cross‑functional AI initiatives that influence company‑wide strategy.

Work Environment & Culture at arenaflex

We champion a flexible, remote‑first work model that respects work‑life balance while fostering high‑energy collaboration. Our culture is built on:

• Inclusivity: A commitment to equal opportunity for all, including robust accommodations for candidates with disabilities.
• Transparency: Open communication channels, regular town‑halls, and clear visibility into product roadmaps.
• Well‑being: Health initiatives, virtual fitness challenges, and mental‑health resources.
• Community: Volunteer programs, local charitable contributions, and employee resource groups.
• Fun: Regular virtual game nights, team outings, and celebration of milestones.

Compensation, Perks & Benefits (General Overview)

• Competitive base salary plus performance‑based bonuses.
• Comprehensive medical, dental, and vision coverage for employees and dependents.
• Retirement savings plans with company matching contributions.
• Generous paid time off, holidays, and parental leave.
• Flexible work schedules and remote‑work allowances.
• Professional development stipend for certifications, courses, and conferences.
• Employee assistance programs offering counseling and financial guidance.
• Stock‑based equity awards, allowing you to share in arenaflex’s long‑term success.
• Transportation benefits, including commuter‑pass subsidies for those who work on‑site occasionally.
• Recognition programs that celebrate technical achievements and teamwork.

How to Apply

If you are ready to shape the future of AI‑driven customer service at a global leader, we want to hear from you. Click the link below to submit your application, and let’s build the next generation of intelligent experiences together.

Apply Now – Join arenaflex!

Equal Opportunity Employer

arenaflex is committed to providing equal employment opportunities to all applicants, including individuals with disabilities. We will make reasonable accommodations for qualified candidates with disabilities unless doing so would cause an undue hardship on the business.