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Ernst & Young

Provides consulting, assurance, and tax services

AI Engineer - Multiple Teams

Full-TimeUpdated on 10/23/2026
$76.2k - $197.9k
Senior
Bachelor's, Master's
San Antonio, TX, USA+2 moreMore locations: Alpharetta, GA, USA | Jacksonville, FL, USA
In Person
Software EngineeringAI Application Engineering

About the job

Requirements
  • A bachelor's or master's degree is required.
  • At least 6 years of applied engineering experience, including significant experience in AI/ML engineering roles.
  • Ability to explain complex AI system behavior and trade-offs to technical and non-technical stakeholders, including risk and compliance.
  • Ownership and accountability for AI systems from design through production and issue resolution.
  • Ability to work cross-functionally with engineering, product, risk, legal, and audit teams.
  • Ability to understand complex technical challenges across banking, capital markets, insurance, and asset management and translate them into LLM-powered solutions that deliver measurable business value.
  • Practical experience leading and managing multidisciplinary teams through the full AI product lifecycle, including requirements, architecture, build, evaluation, and production handoff.
  • Experience managing and mentoring teams of AI engineers and data scientists through specific business use cases, ensuring technical quality and delivery consistency across engagements.
  • Advanced hands-on software engineering proficiency in Python, with the ability to guide implementation decisions and architecture across delivery teams.
  • Experience delivering production-grade LLM applications, including retrieval-augmented systems, agentic orchestration layers, and structured output pipelines at enterprise scale, using tools such as LlamaIndex, LangChain, Azure OpenAI, or AWS Bedrock.
  • Knowledge of embedding models, vector search, semantic retrieval, and NLP similarity systems used in enterprise RAG and knowledge AI architectures, including OpenAI Embeddings, Cohere Embed, Azure AI Search, and FAISS.
  • Expertise in LLM operations practices, including model lifecycle management, versioning, continuous integration and continuous deployment for AI systems, deployment governance, and production improvement loops, using tools such as MLflow, Azure ML, GitHub Actions, or Kubeflow.
  • Experience with agentic system architecture, including multi-agent orchestration, tool-use patterns, memory design, and human-in-the-loop workflows for production environments, using tools such as LangGraph, AutoGen, Semantic Kernel, CrewAI, or NVIDIA NIM.
  • Experience governing agent behavior in production, including audit trail design, cost and latency controls, and reliability management across multi-agent pipelines.
  • Experience defining and governing LLM evaluation frameworks across teams and engagements to measure output quality, safety, and alignment with business requirements, using tools such as RAGAS, DeepEval, Arize, or Weights & Biases.
  • Ability to improve performance, resilience, maintainability, and cost efficiency in deployed LLM and agentic systems, including post-deployment optimization and operational tuning.
  • Knowledge of MLOps practices for continuous integration and continuous deployment of AI systems in cloud environments, including containerization and orchestration for scalable and secure LLM deployment, using tools such as Azure DevOps, GitHub Actions, Kubeflow, or MLflow.
  • Experience governing API design standards for LLM and agentic systems, including contract design, versioning, error handling, retry semantics, and decoupling AI service consumers from internal model and workflow topology.
  • System design capability across service boundaries, asynchronous workflows, data contracts, cloud-native patterns, and secure deployment models for AI-enabled applications.
  • Proficiency in containerization and orchestration for deploying and managing scalable LLM applications in production cloud environments, using tools such as Docker, Kubernetes, Azure Container Apps, or AWS ECS.
  • Ability to collaborate with data engineers, ML engineers, and business stakeholders to align LLM solution design with enterprise data and technology constraints.
Responsibilities
  • Manage design, development, testing, deployment, and support for production-grade AI/ML, generative AI, and intelligent automation solutions.
  • Manage complex technical problems through coding, debugging, testing, troubleshooting, and structured design remediation.
  • Manage the build and integration of LLM, RAG, and agentic solution components into enterprise applications and platforms.
  • Contribute to system design across service boundaries, orchestration layers, data flows, security controls, and external integrations.
  • Lead workstreams or project delivery through planning, coordination, execution oversight, issue management, and stakeholder communication.
  • Drive engineering quality through coding standards, CI/CD practices, automated testing, observability, and documentation.
  • Partner with Development, Engineering, Product, Data, Architecture, and engagement leadership teams to deliver AI capabilities.
  • Improve the performance, resilience, maintainability, and cost efficiency of deployed AI systems.
  • Participate in architecture and design reviews, providing trade-off analysis and implementation guidance.
  • Use modern AI-assisted software engineering tools such as Claude Code, Codex, or equivalent agentic coding platforms in delivery leadership and engineering execution.
Desired Qualifications
  • Advise clients on AI platform and infrastructure strategy, including model access layer selection, build-versus-buy decisions, and integration with existing data and technology infrastructure, using platforms such as Azure OpenAI, AWS Bedrock, Google Vertex AI, NVIDIA AI Enterprise, or Hugging Face.
  • Quantify business improvements resulting from LLM solutions through evaluation metrics, performance benchmarks, and client-facing reporting.
  • Design and govern model observability and monitoring strategies across engagements, covering output quality, behavioral drift, and multi-step agentic workflow tracing, using tools such as LangSmith, Arize, Datadog, or Azure Monitor.
  • Understand LLM fine-tuning methodologies and advise clients on their use, including data preparation, training approaches, and post-training evaluation, using methods and tools such as LoRA, QLoRA, PEFT, or NeMo Framework.
  • Lead controlled model rollout programs, including shadow deployment, A/B testing, canary releases, stakeholder sign-off, and defined rollback criteria.
  • Understand LLM-specific AI security risks, including prompt injection, data poisoning, and model extraction, and advise on mitigation and audit trail requirements.
  • Understand bias, fairness, and explainability approaches and their application in financial services AI systems.
  • Understand system design principles for AI, including scalability, fault tolerance, and distributed architecture for production AI workloads.
  • Understand data pipeline architecture for enterprise AI workloads, including ingestion, transformation, and governance.
  • Understand data security and privacy best practices in cloud environments as applied to LLM application development and deployment.
  • Be familiar with AI-assisted software engineering tools such as Claude Code, GitHub Copilot, or Codex as part of delivery leadership and engineering execution.
  • Be familiar with GPU-accelerated AI workloads and cloud AI services for model inference and deployment at scale, including NVIDIA GPU platforms, Azure ML, or AWS SageMaker.
  • Be familiar with agile and modern engineering delivery methodologies as applied to AI/ML initiatives.

About the company

EY (Ernst & Young) is a global professional services firm that provides consulting, assurance, tax, and transaction advisory services across industries such as energy, healthcare, financial services, and real estate. Its work centers on helping clients solve critical business challenges by offering high-value advisory support in areas like supply chain, cybersecurity, sustainability, and digital transformation; revenue comes from fees for consulting, audit, and advisory services. What sets EY apart is its breadth of services across multiple disciplines, deep industry knowledge, and emphasis on thought leadership and research to inform clients’ strategic decisions. The firm aims to help organizations improve operational efficiency, navigate regulatory environments, and stay ahead of market trends by delivering practical, evidence-based guidance and execution support.

Company Size

10,001+

Company Stage

N/A

Total Funding

N/A

Headquarters

London, United Kingdom

Founded

1991

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Simplify's Take

What believers are saying

  • EY.ai Agentic for Sales launched March 2, 2026 with Snowflake and Canva.
  • EY uses client-zero deployments, scaling Copilot across 400,000 people by May 2026.
  • EY’s 2026 AI assurance push monetizes client demand for governance, controls, and risk reviews.

What critics are saying

  • Sabah filed RM2.4 billion audit-negligence claims against EY on July 30, 2026.
  • EY set aside £188 million in March 2026 after NMC, Shell, and Made.com scrutiny.
  • Repeated audit failures can destroy trust, trigger client defections, and shrink the franchise permanently.

What makes Ernst & Young unique

  • EY Canvas processes 1.4 trillion journal-entry lines across 160,000 global audits.
  • EY-Microsoft invested US$1b+ in May 2026 to industrialize enterprise AI delivery.
  • EY launched agentic audit AI on April 7, 2026, spanning Assurance and AI assurance.

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Benefits

  • Professional Development Budget
  • Flexible Work Hours
  • Remote Work Options

Company News

PR Newswire
Oct 19th, 2026
MedTech revenue hits $650B as M&A value jumps to $130B and financing reaches record $63B

EY's 20th Pulse of the MedTech Industry report finds the global medical technology industry at a turning point, with record financing and dealmaking but growth concentrated among a few leaders. MedTech revenue reached about $650 billion in 2025, up 11%. In the first half of 2026 it hit $325 billion, up 7.1% year on year. Financing hit a record $63 billion in the year to June 30, 2026, up 87%. Initial public offerings and debt made up about 80% of it. M&A value reached roughly $130 billion, the highest in over a decade, driven by a few blockbuster deals. First-half 2026 deal value rose 160% against the same period in 2025. "The broader sector players are at a turning point where discipline is essential to convert innovation into profitable growth," said John Babitt, EY Global MedTech Leader.

Business Insider
Oct 8th, 2026
EY adds nearly 10,000 staff globally as AI revenue surges 50%

EY added nearly 10,000 staff globally in its 2026 financial year as AI-related revenue surged almost 50%. The Big Four firm's workforce reached 415,000, with most growth concentrated in global delivery services and offshoring centres. The Americas division saw headcount decrease by roughly 4,500, or 5%. Overall global revenue rose 4.7% to $57 billion. EY-Parthenon was the fastest-growing service line, with revenue increasing 7.4% to $6.8 billion, marking a turnaround after two years of minimal growth. Tax revenue rose 6% to $13.8 billion, whilst consulting grew 4.4% to $17.4 billion. The results reflect EY's "All-In" strategy under global chair Janet Truncale, with billions invested in transforming operations and AI services.

PR Newswire
Sep 9th, 2026
US oil producers hit record output as capital spending drops 49% and reserve replacement falls

An Ernst & Young study found US oil and gas producers reached record production in 2025 while becoming more selective with investments. The analysis of 30 major exploration and production companies, representing 43% of US oil and gas output, showed oil production hit a study-period high, yet reserve additions from extensions and discoveries declined 11% year over year and failed to fully replace production volumes for the first time since 2021. Total capital expenditures fell 49% year over year, whilst M&A spending declined 70%. Exploration spending dropped 11% to $4.8 billion, representing only 3% of total capital expenditures. Natural gas showed stronger fundamentals, with production rising 18%, reserves increasing 14%, and discoveries up 21%.

Yahoo Finance
Aug 31st, 2026
EY commits $100M to bonuses rewarding human skills alongside AI adoption

Ernst & Young's US division is allocating $100 million this fiscal year to bonus payments rewarding employees who demonstrate adaptability, innovation, and judgement. Individual spot awards reach $500, whilst employees or teams making significant contributions can receive between $10,000 and $25,000, five times the previous programme's ceiling. The initiative also covers AI experimentation. "What we recognise signals what we value," said Ginnie Carlier, chief talent and culture officer for EY Americas. The bonuses form part of a broader strategy to reshape employee development across all career levels. Other professional services firms are pursuing similar approaches. KPMG restructured its audit internship this summer to emphasise critical thinking, whilst PwC US introduced training combining AI proficiency with human qualities like empathy. EY reported AI-related revenue grew 30% year-over-year in 2025.

Consultancy.eu
Aug 28th, 2026
EY-Parthenon acquires Dutch digital strategy consultancy SparkOptimus

EY-Parthenon has acquired SparkOptimus, a Dutch digital strategy consultancy founded in 2010. The Amsterdam-based firm employs around 50 consultants and specialises in AI transformation, digital business model redesign and technology-driven transformation. SparkOptimus founders Alexandra Jankovich and Tom Voskes, both former McKinsey consultants, said joining EY-Parthenon will create significant value for clients and staff whilst providing access to broader capabilities. The acquisition marks EY-Parthenon's first European deal since 2021. EY-Parthenon, established in 2014, is EY's strategy consulting and transactions advisory business with around 25,000 professionals globally. Mark Reich, Partner at EY-Parthenon Netherlands, said SparkOptimus' expertise will complement existing capabilities in the Dutch market. The deal closes on 1 September 2026. Financial terms were not disclosed.