Staff Data Scientist
5 days ago
What we do: Zefr is the leading data company enabling responsible marketing in social media environments. Zefr’s solutions empower brands to understand content on scaled platforms such as YouTube, Meta, TikTok, and Snap. Through its patented AI technology, Zefr offers brands and agencies more accurate and transparent targeting and measurement solutions. The company is headquartered in Los Angeles, California, with additional locations across the globe.What you’ll do: We are hiring a Staff Data Scientist to help us build and use state of the art machine learning models using multiple terabytes of data. In this role you will implement machine learning algorithms to understand what hundreds of millions of social media posts are about. You will be working with state of the art models, including large language models, to build sophisticated compound AI systems. We are excited to welcome someone who is passionate about cutting edge research in machine learning, computer vision, natural language processing, and vector databases. We want an individual who can keep up to date with the ever-expanding field of data science. This is a role where we both expect to learn from you and have you learn from usTech stack:Languages: Python, SQLData Stores: Snowflake, Qdrant, DynamoDB, Scylla DBData Processing: Apache Kafka, Pandas, DBT, FastAPIDevOps: Github Actions, Docker, Terraform, Kubernetes, ArgoCD, AWS, GCP, DatadogMLOps:Triton Inference Server, Weights and Biases, Onnx, TensorRT, DVCML: Transformers, PyTorch, HuggingFaceLabeling: Voxle51, LabelBoxWhat we’re looking for:Bachelor's or Master's degree in Computer Science or related field with 7+ years of professional experienceExperience with training classifiers, encoders, and generative models (LLMs) both from scratch and via fine tuning.Fluency with Python and SQL (Specifically Snowflake)Experience with distributed systems and machine learning modelsExperience with working with LLMs and RAG systemsStrong foundation in data structures, algorithms and software designThorough testing and code review standards/practicesStrong verbal and written communication skillsOpenness to new technologies and creative solutionsBenefits (for US based employees):Flexible PTOMedical, dental, and vision insurance with FSA optionsCompany-paid life insurancePaid parental leave401(k) with company matchProfessional development opportunities14 paid holidays offIn-office, hybrid, and fully-remote work options available“Summer Fridays” (shorter work days on select Fridays during the summertime)In-office lunches and lots of free foodOptional in-person and virtual events (we like to celebrate)Compensation (for US based employees):The anticipated base salary for this position is between $235,000 and $250,000. Additional stock options are provided with this role. Within the range, individual pay is determined by factors such as job-related skills, experience, and relevant education or training. If your compensation expectations fall outside of this range, it may still be worth having a conversation.Zefr is an equal opportunity employer that embraces diversity and inclusion in the workplace. We are committed to building a team that represents a variety of backgrounds, skills, and perspectives because we know this only makes us better. We strongly encourage women, persons of color, LGBTQIA+ individuals, persons with disabilities, members of ethnic minorities, foreign-born residents, and veterans to apply even if you do not meet 100% of the qualifications.LocationZEFR Marina del Rey, CA (Hybrid)TypeFull timeDepartmentData Science
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