Staff AI Engineer
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Job Description
Staff AI Engineer building retrieval, inference, and agentic systems for Acquia’s Drupal-based digital experience platform. Shipping shared AI capabilities that turn enterprise data signals into customer workflows.
Responsibilities:
- Write and ship production AI code daily as an active contributor
- Lead customer-context retrieval across semantic retrieval, indexing, and knowledge graph approaches
- Enable agents to resolve customers and retrieve their full context in a single request
- Build inference and signal layers over the Iceberg-based lakehouse
- Write scored inferences back to the data platform and expose signals through contracts for other teams
- Turn signals such as churn risk, usage and entitlement mismatch, and expansion opportunities into actionable workflows
- Select appropriate large models, small fine-tuned models, or deterministic code for each workload
- Manage inference costs
- Own evaluation and observability for AI systems
- Establish patterns for other teams and collaborate with engineering and business leaders to deliver company goals
- Work across observability, the core data platform, and insights and intelligence alongside product and platform teams
- Design, build, and ship production systems while iterating quickly
Requirements:
- 8+ years of software engineering experience, including 3+ years shipping AI or ML systems to production
- Strong programming fundamentals and deep proficiency in at least one language used for AI and data work; Python is the primary language for ML and insights
- Fluency working with data at scale, including advanced SQL, a transformation layer such as dbt, and a distributed query engine over lakehouse or warehouse storage
- Experience reasoning about query cost and partitioning
- Production retrieval and context engineering, including embeddings, vector search, hybrid or graph retrieval, and measuring retrieval effectiveness
- Experience with agentic systems and durable workflows in production, including tool calling, state and memory, and human-in-the-loop patterns
- Experience with evaluation and observability for AI systems, including tracing, prompt and version management, and dataset-driven testing
- Cloud deployment experience, preferably AWS, with containerized services and inference cost ownership
- B.S. in Computer Science or equivalent practical experience
- Experience with shared data or ML capabilities used by other teams
- Experience with small and fine-tuned models, including distilling task-specific models
- Observability data fluency, including OpenTelemetry and high-volume logs, metrics, and traces
- Data governance knowledge covering access control, lineage, and data residency
- Enterprise SaaS or CMS experience; familiarity with Acquia's Drupal-based DXP
- Familiarity with AI-assisted coding tools such as Claude, Cursor, or Copilot, and MCP or similar technologies
- Strong communication skills for presenting AI system design to engineers and C-suite stakeholders
- Senior individual contributor track record and mentoring through technical work
- AI fluency, orchestration mindset, radical adaptability, builder mentality, and intellectual humility
Benefits:
- Competitive healthcare coverage
- Wellness programs
- Take it when you need it time off
- Parental leave
- Recognition programs
- Inclusive, transparent, efficient, and educational interview experience
- Opportunities to grow your career and learn from a global team
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