Job Description
Position Summary
We are pioneering a new AI development team dedicated to revolutionizing our agency's operations from the ground up. We are looking for an entrepreneurial and deeply technical AI Engineer to be a foundational member of this team.
This role sits at the intersection of AI engineering and real world execution.
As a Senior AI Engineer, you will design and build agentic systems that translate complex business workflows into automated, scalable solutions. You will work across multiple AI platforms, rapidly prototype solutions, and produce high-impact solutions that create enterprise-wide acceleration and efficiencies.
This role requires strong engineering fundamentals, product thinking, and the ability to operate in ambiguity.
Key Responsibilities
Agentic Solution Design & Architecture
- Architect and deliver multi-step, tool-using agent systems that automate complex enterprise workflows end-to-end
- Partner with business leaders to identify high-friction processes, define requirements, and translate ambiguity into structured, scalable solutions
- Decompose workflows into deterministic, automatable components and design agent architectures that drive enterprise-wide efficiency and reuse
- Develop orchestration logic across APIs, data sources, and large language models, ensuring reliability, performance, and scalability
- Design around platform constraints, leveraging creative engineering approaches to unlock capabilities rather than being limited by them
Engineering Execution & Platform Orchestration
- Build and deploy production-grade systems, including RAG pipelines, tool integrations, and API-driven workflows
- Rapidly prototype across AI platforms (e.g., Google Gemini, Claude, Perplexity AI) to validate feasibility and inform platform strategy
- Select and integrate the optimal models, tools, and ecosystems based on use case requirements, not platform bias
- Lead end-to-end development from zero-to-one prototypes through scaled, production-ready systems
- Ensure solutions are extensible, modular, and designed for enterprise adoption
Workflow Transformation & Stakeholder Integration
- Work directly with cross-functional stakeholders to map workflows, align on outcomes, and operationalize AI-driven transformation
- Translate business needs into technical architectures that deliver measurable impact on efficiency, throughput, and quality regularly optimizing for future scale
- Collaborate across product, design, data, and engineering teams to ensure solutions are usable, adopted, and outcome-driven
Innovation & Experimentation
- Operate at the forefront of the AI ecosystem, continuously evaluating emerging models, tools, and frameworks
- Lead rapid experimentation cycles across LLMs, RAG architectures, and agentic systems, iterating based on performance and user feedback
- Champion a culture of applied innovation, balancing speed, rigor, and scalability
- Drive the adoption of cutting-edge capabilities to maintain competitive advantage and unlock new enterprise value
Qualifications & Experience
Required:
- Proven experience architecting and deploying end-to-end AI/ML systems in production environments, with clear ownership from problem definition through delivery
- Deep hands-on expertise in Google Cloud Platform, including production use of Vertex AI (Pipelines, Search, Model APIs) and the Gemini model family
- Demonstrated experience designing and building agentic AI systems, including multi-step, tool-using agents and complex RAG architectures; familiarity with frameworks such as LangChain, LlamaIndex, or similar
- Strong software engineering fundamentals, including:
- Python proficiency and modern backend development (APIs, microservices)
- Experience with containerization (Docker), orchestration (e.g., GKE), and CI/CD pipelines
- Experience building LLM-powered applications that integrate with external tools, APIs, and enterprise data sources
- Strong systems thinking mindset, with the ability to design around platform constraints rather than be blocked by them
- Demonstrated ability to operate in fast-moving, ambiguous environments with a high degree of ownership and accountability
Nice to Have:
- Experience working across multiple AI platforms and systems (e.g., Gemini, Claude, Perplexity) and evaluating tradeoffs between them
- Experience integrating AI systems with enterprise tools and data platforms (e.g., Snowflake, BigQuery, SharePoint, Salesforce)
- Familiarity with enterprise security models, data access controls, and permission-aware system design
- Background in client-facing, consulting, or cross-functional product environments
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Horizon Media is proud to be an equal opportunity workplace. We are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity or Veteran status. We also consider qualified applicants regardless of criminal histories, consistent with legal requirements.
Salary Range
$195,000.00 - $225,000.00A successful applicant’s actual base salary may vary based on factors such as individual’s skill sets, experience, training, education, licensure/certifications, and qualifications for the role. As an organization, we take an aptitude and competency-based hiring approach. We provide a competitive total rewards package including a discretionary bonus and a variety of benefits including health insurance coverage, life and disability insurance, retirement savings plans, company paid holidays and unlimited paid time off (PTO), mental health and wellness resources, pet insurance, childcare resources, identity theft insurance, fertility assistance programs, and fitness reimbursement.
Skills Required
- Proven experience architecting and deploying end-to-end AI/ML systems in production with ownership from definition through delivery
- Deep hands-on expertise in Google Cloud Platform and production use of Vertex AI (Pipelines, Search, Model APIs) and Gemini model family
- Demonstrated experience designing and building agentic AI systems, multi-step tool-using agents, and complex RAG architectures
- Familiarity with frameworks such as LangChain, LlamaIndex, or similar
- Strong software engineering fundamentals including Python proficiency and modern backend development (APIs, microservices)
- Experience with containerization (Docker), orchestration (e.g., GKE), and CI/CD pipelines
- Experience building LLM-powered applications that integrate with external tools, APIs, and enterprise data sources
- Systems thinking mindset and ability to design around platform constraints
- Ability to operate in fast-moving, ambiguous environments with high ownership and accountability
- Experience across multiple AI platforms and evaluating tradeoffs (e.g., Gemini, Claude, Perplexity)
- Experience integrating AI systems with enterprise tools and data platforms (e.g., Snowflake, BigQuery, SharePoint, Salesforce)
- Familiarity with enterprise security models, data access controls, and permission-aware system design
- Background in client-facing, consulting, or cross-functional product environments
Horizon Media Compensation & Benefits Highlights
The following summarizes recurring compensation and benefits themes identified from responses generated by popular LLMs to common candidate questions about Horizon Media and has not been reviewed or approved by Horizon Media.
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Healthcare Strength — Healthcare Strength: Health coverage spans medical, dental, vision, mental‑health resources/EAP, and HSA/FSA, alongside life and disability insurance. Add‑ons such as fertility assistance, pet insurance, identity‑theft protection, and fitness reimbursement expand the package.
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Leave & Time Off Breadth — Leave & Time Off Breadth: Company‑paid holidays and “unlimited” PTO are widely highlighted. Hybrid/remote flexibility features across roles and locations.
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Parental & Family Support — Parental & Family Support: Parental leave is described as generous, with childcare resources and family medical leave available. Family‑supportive benefits are presented as part of the standard offering.
Horizon Media Insights
What We Do
Horizon Media is a leader in driving business-based outcomes for marketers. The company was founded in 1989, is headquartered in New York, and has offices in Los Angeles and Toronto. With estimated billings of $8.7 billion and over 2,300 employees, Horizon is the third largest U.S. media agency according to COMvergence data. Recognized as one of the world’s ten most innovative marketing and advertising companies by Fast Company, Horizon Media has been named Media Agency of the Year by MediaPost, Adweek and AdAge and is known for its highly personal approach to client service. Renowned for its culture, Horizon is also consistently named to all the prestigious annual Best Places to Work lists published by Fortune, Forbes, AdAge, Crain’s New York Business and Los Angeles Business Journal; including “Best Workplaces for Diversity,” “Best Workplaces for Women,” and “Best Workplaces for Millennials” honors. Bill Koenigsberg, President, CEO and Founder of Horizon Media, has earned almost every industry accolade and, in 2019, garnered the marketing’s highest honor when he was inducted into the American Advertising Federation (AAF) Hall of Fame. TOGETHER WE'RE BUILDING A PLACE OF BELONGING At Horizon, diversity, equity and inclusion are pillars of our culture. Numerous studies show that a more diverse workplace benefits everyone in so many ways; employees, organizations and their clients. When people feel that they belong and are included, they become committed and feel empowered to be more innovative. And that is the workforce we strive to have. We welcome everyone and do not discriminate based on gender, race, religion, sexual orientation, age or disability. We want you to feel welcomed, safe and know that you’re a vital member of our community. For more information, visit: www.horizonmedia.com or www.horizonmedia.com/careers.









