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Ernst & Young

Global professional services: consulting, assurance, tax

Service Delivery Center – Senior - AI & Data, AI Developer

AI Application EngineeringUpdated on Nov 14
Full-time$65.5k - $152.1k

About the Job

Requirements

  • A bachelor's or master's degree is required.
  • At least 2 years of related applied engineering work experience, including meaningful experience in AI/ML engineering roles.
  • Experience designing, building, and maintaining production-grade large language model applications, including end-to-end pipelines from data ingestion through model output delivery.
  • Practical experience building retrieval-augmented systems grounded in enterprise knowledge sources, including chunking strategies, embedding pipelines, and retrieval optimization.
  • Working technical knowledge of embedding models, vector search, and semantic retrieval patterns for grounding large language model outputs in enterprise knowledge sources.
  • Proficiency in prompt engineering, including zero-shot, few-shot, chain-of-thought, and structured output techniques, and systematically evaluating and iterating on prompt performance.
  • Experience designing and building agentic systems, including multi-agent orchestration, tool use, and memory design across single- and multi-step workflows.
  • Ability to debug, troubleshoot, and remediate production large language model and agentic systems across retrieval, orchestration, and generation layers.
  • Hands-on proficiency in Python for clean, modular, production-quality code for large language model pipelines and agentic applications.
  • Experience working with structured and unstructured datasets for large language model application development, including data curation, preparation, and quality validation for model inputs and responses.
  • Working familiarity with RESTful and event-driven API patterns, including asynchronous workflows, service boundaries, and integration of enterprise data sources.
  • Practical understanding of containerization and orchestration concepts for packaging and deploying large language model applications in cloud environments.
  • Understanding of software engineering best practices for machine learning systems, including modular code design, testing patterns for AI pipelines, and data quality validation.
  • Familiarity with data monitoring and data observability in cloud environments.
  • Exposure to CI/CD and operationalization practices for AI systems, including model and workflow deployment, versioning, environment promotion, and release support in cloud or containerized environments.
  • Ability to explain complex AI system behavior and trade-offs to technical and non-technical stakeholders, including risk and compliance.
  • Ability to take responsibility for AI systems from design through production and issue resolution.
  • Ability to operate effectively as requirements, regulations, and technologies evolve.
  • Ability to work collaboratively and cross-functionally with engineering and product teams.

Responsibilities

  • Develop, test, deploy, and support production-grade AI/ML, generative AI, and intelligent automation solutions.
  • Solve technical problems across development, integration, and production support through coding, debugging, testing, troubleshooting, and structured design remediation.
  • Translate user requirements into technical designs, APIs, workflows, and supportable implementation patterns.
  • Build and integrate large language model, retrieval-augmented generation, and agentic solution components into enterprise solutions, applications, and platforms.
  • Support project delivery through execution, estimation, documentation, status communication, and risk identification.
  • Participate in design reviews and provide trade-off analysis and implementation input.
  • Use AI-assisted software engineering tools such as Claude Code, Codex, or equivalent agentic coding platforms in day-to-day delivery to improve delivery speed, code quality, and engineering efficiency.

Desired Qualifications

  • Partner with Development, Engineering, Product, Data, Architecture, and project leadership teams to deliver AI capabilities.
  • Ability to build and maintain model observability pipelines, including tracing multi-step agentic reasoning chains, detecting output degradation, and monitoring behavioral drift in production.
  • Familiarity with large language model fine-tuning approaches, including instruction tuning and preference optimization, and understanding when fine-tuning is appropriate versus prompt-based solutions.
  • Familiarity with responsible AI principles, including bias and fairness evaluation, human-in-the-loop design, and explainability approaches in financial services.
  • Familiarity with data pipeline design for AI workloads, including ingestion, transformation, and quality validation.
  • Familiarity with cloud-based platforms for building, training, and deploying scalable large language model solutions.
  • Familiarity with AI-assisted software engineering tools for accelerating development, implementation, and code review.
  • Strong grounding in traditional AI/ML and deep learning fundamentals, including supervised and unsupervised learning, feature engineering, model evaluation, neural network architectures, and training trade-offs, with the ability to apply these concepts to enterprise AI solutions.

About the Company

Ernst & Young

Global professional services: consulting, assurance, tax

EY (Ernst & Young) provides professional services at a global scale, offering consulting, assurance, tax, and transaction advisory services. It serves clients across industries such as technology, media, real estate, hospitality, and construction. Instead of selling a single product, EY works with clients through tailored engagements where cross-disciplinary teams analyze challenges, design strategies, perform audits, help with tax planning, and assist with mergers or divestitures. What sets EY apart is its worldwide reach and integrated service model, industry-specific expertise, and focus on responsible business practices like sustainability, cybersecurity, and workforce flexibility. EY’s goal is to help organizations improve performance, manage risk, and achieve sustainable growth while building a better working world.

Company size
5,001-10,000
Company stage
Not listed
Total funding
Not listed
Headquarters
Boston, MA
Founded
1991

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