Zefr

Manage IT support team, oversee onboarding, troubleshoot technical issues, and implement new IT projects. | Experience managing IT teams, troubleshooting in helpdesk environments, and strong knowledge of macOS and related tools. | What we do: Zefr is the leader in AI-powered content classifications for brands and advertisers. Zefr’s platform is purpose built for multi-modal content understanding on open platforms like YouTube, TikTok, Meta and Snap, with pre-bid activation and verification solutions. Our products safeguard media and AI investments, while maximizing performance and efficacy on those channels. Headquartered in Los Angeles with global offices across New York, Chicago, London, Toronto, Singapore, and more, Zefr is redefining what trust and transparency means for social media in the age of AI. What you’ll do: Zefr is seeking an IT Manager to join our team in Marina del Rey, CA! The IT team unleashes the productivity of all Zefr employees by ensuring that they have all the tools and resources they need to connect to the Zefr network, from the day they're hired and throughout their career with Zefr. You will have experience leading IT teams, troubleshooting tech issues in a Mac environment, be able to easily communicate technical issues in easily understandable terms, and can prioritize and multitask on the fly. Manage three high performing IT Support Analysts Support all of the orgs across Zefr, both local and remote Oversee the IT onboarding process for new hires and ensure they have the necessary tools and resources. Respond to incoming tickets and walk-up requests Research and implement new projects and software to be used across the entire company Revise and revisit processes to adapt to the needs of the business Support A/V needs, from setting up video conferencing calls to setting up company-wide presentations Manage vendor relationships and IT budgeting Get hands-on experience with industry leading IT tools What we’re looking for: 2 years’ experience managing an IT team with an additional 2 years’ experience troubleshooting computers in a helpdesk environment (knowledge with Apple computers is required) Strong people leader that can motivate and support a team of high performing individuals Deep understanding of macOS, Jamf, Okta and the Google suite of products Experience with ticketing systems (we use Jira Service Management) Ability to multitask on the fly and prioritize requests as they come up Communicate high level, technical problems and solutions in terms that are easily understood Experience with SOC2 Type 2 compliance Basic understanding of networking and data storage Basic understanding of macOS command line and Bash Possess "can-do" attitude in any situation Eager to learn and adapt quickly to new technologies Benefits (for US based employees): Flexible PTO Medical, dental, and vision insurance with FSA options Company-paid life insurance Paid parental leave 401(k) with company match Professional development opportunities 13 paid holidays off Summer Fridays (we leave early) Flexible hybrid schedule In-office lunches and lots of free food Optional in-person and virtual events (we like to celebrate!) Compensation (for US based employees): The anticipated salary for this position is between $105,000 and 125,000. 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.

Lead and develop the ML Ops team, design scalable ML infrastructure, and ensure reliable deployment and monitoring of ML models. | Requires 5+ years in ML Engineering or MLOps, 2+ years managing teams, expertise in ML deployment, transformer models, and CI/CD pipelines. | What We Do: Zefr is the global leader in brand suitability targeting and measurement across the world's largest platforms. Zefr's technology is helping to power the age of responsible marketing by putting advertisers in control of their content adjacencies based on their own unique brand safety and suitability preferences. As an official YouTube Measurement Program Partner, Meta for Business Partner, and TikTok for Business Partner, the company leverages patented machine learning and AI technology (Cognition AI) to offer brands and agencies more precise and transparent brand safety and suitability activation and measurement solutions on scaled platforms. The company is headquartered in Los Angeles, California, with additional locations across the globe. What You'll Do: We are hiring a Manager of Machine Learning Operations to lead our ML Ops team and drive the infrastructure, tooling, and processes that enable our machine learning systems to operate at scale. You will oversee the deployment, monitoring, and optimization of ML models that process multi-terabytes of social media platform data from TikTok, YouTube, Facebook, Instagram, and Snap. In this role, you will lead a team of engineers responsible for building and maintaining robust ML pipelines, ensuring model reliability in production, and implementing best practices for model lifecycle management. You will collaborate closely with ML Engineers and Data Scientists to bridge the gap between research and production. We are excited to welcome a leader who is passionate about building scalable ML infrastructure and developing high-performing teams. Key Responsibilities: • Lead, mentor, and grow a team of Machine Learning Engineers, fostering a culture of innovation and continuous improvement • Design and implement scalable ML infrastructure for model training, deployment, and serving • Establish and enforce best practices for ML model lifecycle management, including versioning, testing, and monitoring • Develop and maintain CI/CD pipelines for machine learning workflows • Optimize model inference performance and reduce latency/cost across production systems • Collaborate with ML Engineers and Data Scientists to productionize models efficiently • Implement robust monitoring, alerting, and observability solutions for ML systems • Drive technical decisions on ML Ops tooling, infrastructure, and architecture • Ensure high availability and reliability of ML services at scale • Manage project timelines, priorities, and resource allocation for the ML Ops team Tech Stack: • Languages: Python, SQL • Data Stores: Snowflake, Qdrant, GCS • Data Processing: DBT, Pandas, Ray • DevOps: GitHub Actions, Docker, Terraform, Kubernetes, ArgoCD, AWS, GCP, Datadog • MLOps: Triton Inference Server, Weights and Biases, ONNX, TensorRT LLM, vLLM, SGLang • ML: Voxel51 Teams, Transformers, PyTorch, HuggingFace What We're Looking For: • Bachelor's or Master's degree in Computer Science or related field with 5+ years of professional experience in ML Engineering or MLOps • 2+ years of experience managing or leading engineering teams • Deep expertise in ML model deployment, serving infrastructure, and production ML systems • Hands-on experience with transformer architectures (e.g., BERT, ViT) for natural language and vision tasks. • Strong understanding of multimodal embedding techniques for integrating text, image, audio, and structured data. • Experience with LLM models such as Gemini, GPT, Claude, Qwen, etc. • Experience with ML experiment tracking, model versioning, and feature stores • Strong understanding of CI/CD principles applied to ML workflows • Experience optimizing model inference performance (ONNX, TensorRT, or similar) • Excellent leadership, communication, and stakeholder management skills • Track record of building and scaling high-performing engineering teams • Openness to new technologies and creative solutions Nice to Have: • Experience with ad tech and digital advertising ecosystem • Experience with multimodal LLM fine-tuning Benefits (for US-based employees): • Flexible PTO • Medical, dental, and vision insurance with FSA options • Company-paid life insurance • Paid parental leave • 401(k) with company match • Professional development opportunities • 14 paid holidays off • Flexible hybrid work schedule • "Summer Fridays" (shorter work days on select Fridays during the summertime) • In-office lunches and lots of free food • Optional in-person and virtual events (we like to celebrate!) Compensation (for US-based employees): The anticipated base salary for this position is between $170,000 and $230,000. 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.

Assist in testing web applications, validate data accuracy, and document bugs to ensure product quality. | Pursuing a degree in a relevant field with basic programming, SQL, and web tech knowledge, and some experience in software testing or related projects. | What we do: Zefr is the leading global technology company enabling responsible marketing in walled garden social environments. Zefr’s solutions empower brands to manage their content adjacency on scaled platforms such as YouTube, Meta, TikTok, and Snap, in accordance with industry standard frameworks. Through its patented AI technology, Zefr offers brands and agencies more accurate and transparent solutions for social walled gardens. The company is headquartered in Los Angeles, California, with additional locations across the globe. What you’ll do: As a QA Engineering Intern for the Customer Portals team, you will help ensure that our clients have a seamless and reliable experience when interacting with Zefr’s products. Success in this role involves identifying potential user-facing issues before they reach production and validating that the data displayed in our portals is accurate. You will play a vital role in the engineering ecosystem by bridging the gap between complex data processing and the final user interface, helping the team maintain high deployment velocity with confidence. Build and Execute automated test cases to verify the functionality, usability, and visual integrity of customer-facing web applications. Validate API responses to ensure the data being sent to our portals is accurate, structured correctly, and performing efficiently. Perform data quality checks by writing Python scripts and SQL queries to compare the information displayed on the UI against the underlying database records. Document clear, reproducible bug reports in our tracking system to help developers identify and resolve technical issues quickly. Collaborate with senior QA engineers to maintain and extend automated UI test suites using Playwright framework. Participate in agile ceremonies, including sprint planning and daily stand-ups, to understand feature requirements and provide input on testability. Assist in regression testing during release cycles to ensure new updates do not negatively impact existing portal functionality. What we’re looking for: Education: Currently pursuing a Bachelor’s or Master’s degree in Computer Science, Information Technology, or a related technical field. Experience: Previous internship experience or academic project work involving software testing, web development, or data analysis (0–1 years of experience). Programming Skills: Foundational knowledge of Python or another scripting language, with an interest in learning automated testing frameworks (e.g., Selenium, Playwright, or PyTest). Database Skills: Basic proficiency in SQL for data retrieval and verification. Technical Familiarity: Understanding of how web applications work, including basic knowledge of HTML, CSS, and how browsers interact with APIs (JSON/REST). Analytical Mindset: Strong attention to detail and a natural curiosity for "breaking" software to find edge cases. Communication: Excellent written and verbal communication skills to effectively describe technical issues to cross-functional team members. Professionalism: A proactive learner who takes initiative to ask questions and seeks to understand the "why" behind product features. Compensation (for US based employees): The anticipated compensation for this position is between $25 and $30 per hour. Within the range, individual pay is determined by factors such as job-related skills, experience, and relevant education or training. 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.

Manage client accounts, oversee campaign implementation, analyze performance, and foster long-term client relationships. | 3+ years in online media account management, strong Excel skills, excellent communication, and familiarity with ad tools. | What we do: Zefr is the leader in AI-powered content classifications for brands and advertisers. Zefr’s platform is purpose built for multi-modal content understanding on open platforms like YouTube, TikTok, Meta and Snap, with pre-bid activation and verification solutions. Our products safeguard media and AI investments, while maximizing performance and efficacy on those channels. Headquartered in Los Angeles with global offices across New York, Chicago, London, Toronto, Singapore, and more, Zefr is redefining what trust and transparency means for social media in the age of AI. What you’ll do: Collaborate with sales team on all facets of client relations from RFP stage to campaign completion, including but not limited to proposal submissions, overseeing campaign implementation with Ad Operations, campaign analysis/reporting, billing and reconciliation and related day-to-day account management duties Manage clients’ daily questions, issues, and feedback, sharing with management as needed Manage the flow of insertion orders, creative tags, and pixel requests Work cross-functionally with Sales, Research, and Finance teams to ensure successful client on-boarding, continued client success, and annual contract renewal Maintain strong relationships with agencies and advertisers to ensure long-term success; be able to identify opportunities to expand ZEFR’s level of service with each client, and work with the sales team to follow through on those opportunities Share expertise and advise clients on new campaign ideas to generate continued results Work with Sales and Ad Operations to ensure client satisfaction Participate in industry events and conferences What we’re looking for: 3+ years of account management experience in online media agency or ad sales organization, or related Strong analytical skills, including high level of comfort with Excel Keynote experience a plus Excellent written and verbal communication, and the ability to communicate effectively at all levels of an organization. Ability to work independently, while being open to direction and guidance Familiarity with ad serving and online ad research tools (ComScore, DCM, Nielsen NetRatings, AdRelevance) a plus Proven ability to develop strong working relationships with clients The ability to effectively manage multiple tasks and deadlines Intelligent, outgoing individual with interpersonal skills and work ethic Benefits (for US based employees): Flexible PTO Medical, dental, and vision insurance with FSA options Company-paid life insurance Paid parental leave 401(k) with company match Professional development opportunities 14 paid holidays off Flexible hybrid work schedule “Summer Fridays” (shorter work days on select Fridays during the summertime) In-office lunches and lots of free food Optional in-person and virtual events (we like to celebrate!) Compensation (for US based employees): The anticipated base salary for this position is between $85,000 - 95,000 with an additional bonus. 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.