PwC

Senior AI Engineer (Applied AI / LLM & RAG)

PwC  •  Santo Domingo, DO (Hybrid)  •  7 hours ago
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Job Description

Line of Service

Internal Firm Services

Industry/Sector

Not Applicable

Specialism

IFS - Internal Firm Services - Other

Management Level

Senior Associate

& Summary

At PwC, our people in software and product innovation focus on developing cutting-edge software solutions and driving product innovation to meet the evolving needs of clients. These individuals combine technical experience with creative thinking to deliver innovative software products and solutions.

In technology delivery at PwC, you will focus on implementing and delivering innovative technology solutions to clients, enabling seamless integration and efficient project execution. You will manage the end-to-end delivery process and collaborate with cross-functional teams to drive successful technology implementations.

Focused on relationships, you are building meaningful client connections, and learning how to manage and inspire others. Navigating increasingly complex situations, you are growing your personal brand, deepening technical expertise and awareness of your strengths. You are expected to anticipate the needs of your teams and clients, and to deliver quality. Embracing increased ambiguity, you are comfortable when the path forward isn’t clear, you ask questions, and you use these moments as opportunities to grow.

Examples of the skills, knowledge, and experiences you need to lead and deliver value at this level include but are not limited to:

  • Respond effectively to the diverse perspectives, needs, and feelings of others.
  • Use a broad range of tools, methodologies and techniques to generate new ideas and solve problems.
  • Use critical thinking to break down complex concepts.
  • Understand the broader objectives of your project or role and how your work fits into the overall strategy.
  • Develop a deeper understanding of the business context and how it is changing.
  • Use reflection to develop self awareness, enhance strengths and address development areas.
  • Interpret data to inform insights and recommendations.
  • Uphold and reinforce professional and technical standards (e.g. refer to specific PwC tax and audit guidance), the Firm's code of conduct, and independence requirements.

About the role

We are looking for a Senior AI Engineer to design, build andproductionizeenterprise-grade AI applications, with a strong focus on LLM-based solutions (commercial models), RAG pipelines, document automation, and integration with existing products and platforms. This role will complement a team with strong DevOps,fullstackand backend capabilities by bringing deepexpertiseinLLMOps, evaluation, AI architecture, and hands-on delivery of production AI systemsoperatingunder real-world traffic and reliability constraints.

Whatyou’lldo (responsibilities)

Design and implement AI-powered features and applications (assistants, enterprise search, Q&A over documents, extraction/classification, workflow automation).

Build robust integrations with commercial LLM APIs (e.g., Azure OpenAI/OpenAI) using Python, including streaming, function calling/tool use, errorhandlingand cost controls.

Architect and develop RAG end-to-end:embeddings and indexing (vector/hybrid search),retrieval, reranking, citations/grounding, “no-answer” patterns.

EstablishLLMOpspractices:prompt/version management,automated evaluations and regression tests,tracing/observability,monitoringand alerting,deploymentpatternsand runbooks.

Define and implement security & governance controls for enterprise environments:

RBAC/ABAC and document-level permissions,PII handling (redaction/masking),

mitigation of prompt injection and data exfiltration,auditabilityand compliance-ready logging.

Provide technical leadership to full-stack developers by defining end-to-end AI architecture,setimplementation patterns, and guiding delivery of production-ready services (CI/CD, secrets, scaling, reliability).Produce high-quality technical documentation and contribute reusable components/accelerators for faster delivery.

Whatyou’llbring (minimum qualifications)

Strong software engineering skills with Python (API development, clean code, testing).

Experience integrating external APIs and building backend services (REST, auth, retries, rate limiting).

Hands-on experience building LLM applications using commercial model APIs.

Proven ability to provide technical leadership to full-stack developers, including designing end-to-end AI architecture and guiding implementation decisions.Hands-on experience deploying AI models and services to production environments, including operating under real-world traffic, performance, reliability, and monitoring requirements.

Hands-on experience with Document AI, data ingestion pipelines, and unstructured data processing for document-centric automation use cases.

Preferred qualifications

Experience with Azure services (Azure OpenAI, Azure AI Search, Storage, Key Vault, Functions/App Service/Container Apps).

Familiarity with frameworks such asLangChainLlamaIndex Semantic Kernel (or equivalent).

Experience with hybrid search, reranking, evaluation frameworks, and observability (OpenTelemetryor similar).

Experience with advanced AIarchitecturesuch as Multi-Agent Systems (MAS) oradvancedapproaches, including graph-based RAG.

Priorworkin regulated/enterprise environments and/or consulting delivery models.

Key skills (summary)

Python,FastAPIFlask, testing (pytest), Git

LLM APIs, prompt engineering, function calling/tool use

RAG: chunking, embeddings, vector DB/search, hybrid retrieval, reranking, citations, grounding, evaluation

LLMOps prompt/versioning, evaluation, monitoring, tracing

Document AI, OCR, ingestion pipelines, unstructured data processingSecurity: PII, access control, prompt injection mitigations

Architecture & leadership: end-to-end AI system design, technical guidance for full-stack teams

Cloud & DevOps: Docker, CI/CD, logging/metrics, scalable deployment

Education (if blank, degree and/or field of study not specified)

Degrees/Field of Study required:Degrees/Field of Study preferred:

Certifications (if blank, certifications not specified)

Required Skills

Optional Skills

Accepting Feedback, Accepting Feedback, Active Listening, Analytical Thinking, Client Management, Communication, Creativity, Deliverable Planning, Delivery Management, Developing User Stories, Embracing Change, Emotional Regulation, Empathy, Inclusion, Intellectual Curiosity, IT Business Strategy, IT Consulting, IT Infrastructure, IT Service Management (ITSM), IT Systems Development, Leading Design Workshops, Learning Agility, Market Research, Optimism, Process Improvement {+ 22 more}

Desired Languages (If blank, desired languages not specified)

Travel Requirements

Up to 20%

Available for Work Visa Sponsorship?

No

Government Clearance Required?

No

Job Posting End Date

July 31, 2026

PwC

About PwC

At PwC, we help clients drive their companies to the leading edge. We’re a tech-forward, people-empowered network with more than 370,000 people in 149 countries. Across audit and assurance, tax and legal, deals and consulting we help build, accelerate and sustain momentum. Find out more at www.pwc.com.

PwC: Audit and assurance, consulting and tax services

PwC refers to the PwC network and/or one or more of its member firms, each of which is a separate legal entity. Content on this page has been prepared for general information only and is not intended to be relied upon as accounting, tax or professional advice. Please reach out to your advisors for specific advice.

Industry
Consulting & Advisory
Company Size
10,000+ employees
Headquarters
, GB
Year Founded
Unknown
Website
pwc.com
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