Job Description

Company Description

WNS (Holdings) Limited (NYSE: WNS), is a leading Business Process Management (BPM) company. We combine our deep industry knowledge with technology and analytics expertise to co-create innovative, digital-led transformational solutions with clients across 10 industries. We enable businesses in Travel, Insurance, Banking and Financial Services, Manufacturing, Retail and Consumer Packaged Goods, Shipping and Logistics, Healthcare, and Utilities to re-imagine their digital future and transform their outcomes with operational excellence.We deliver an entire spectrum of BPM services in finance and accounting, procurement, customer interaction services and human resources leveraging collaborative models that are tailored to address the unique business challenges of each client. We co-create and execute the future vision of 400+ clients with the help of our 44,000+ employees.

Job Title: Lead Technical Consultant - Generative AI (GenAI)

Experience

6-8 years

in software engineering / AI engineering / solution engineering

3+ years

hands-on experience delivering

GenAI solutions on cloud

(AWS/Azure/GCP) to production

Role Summary

As a Lead Technical Consultant - GenAI, you will

own end-to-end delivery

of production-grade GenAI solutions--covering

architecture, build, deployment, evaluation, observability, security, and cost controls

. You will work closely with business stakeholders, SMEs, and engineering teams to convert ideas into scalable solutions using

RAG, agents, structured extraction, and workflow automation

.

Key Responsibilities

Solution Design & Architecture

Design GenAI system architectures for enterprise use cases:

RAG, agentic workflows, document intelligence (IDP), copilots, conversational assistants

, and decision support. Define architecture for

LLM orchestration, tool/function calling, memory

, prompt management, and retrieval strategies. Translate non-functional requirements into design:

latency, throughput, concurrency, availability, compliance, and data isolation

.

Hands-on Development (Core Expectation)

Build and ship solutions using

Python

(must-have), and relevant GenAI frameworks (e.g.,

LangChain/LangGraph/CrewAI/Semantic Kernel

or equivalent). Implement retrieval pipelines: chunking, embeddings, vector DB setup, hybrid search, reranking, metadata filtering, caching. Build structured output pipelines: JSON schema extraction, validation, reconciliation, deterministic post-processing, and HITL loops.

Production Readiness & LLMOps

Implement and manage

evaluation frameworks

: offline/online evals, golden datasets, regression testing, LLM-as-judge + human review. Set up

monitoring & observability

: quality metrics, drift detection, prompt/version tracking, latency, cost/token usage dashboards. Drive

release management

practices: CI/CD for prompts + code, environment promotion, rollback strategies.

Security, Governance & Responsible AI

Apply security best practices:

PII handling, secrets management, RBAC, network isolation, encryption

, and audit logging. Implement guardrails:

prompt injection resistance, data exfiltration prevention, safety policies, output constraints, citation/grounding checks

. Ensure compliance with enterprise policies and client requirements.

Stakeholder Management & Leadership

Own technical delivery for 1-2 workstreams; break down work into milestones/sprints. Mentor junior engineers; lead code reviews, design reviews, and engineering best practices. Partner with SMEs for validation workflows and continuous improvement of accuracy.

Must-Have Skills

Strong software engineering foundation with

Python

(fastAPI/flask, async patterns, testing, packaging).

3+ years

implementing GenAI solutions using commercial/open LLMs (Azure OpenAI / OpenAI / Bedrock / Vertex / OSS). Proven experience with

RAG

patterns and vector databases (Pinecone/FAISS/Weaviate/Chroma/Elastic/OpenSearch). Solid cloud experience (AWS/Azure/GCP): compute, storage, networking, IAM, monitoring. Experience building APIs/microservices and integrating with enterprise systems. Practical experience with

evaluations

, prompt/versioning, and production troubleshooting.

Good-to-Have Skills

Document AI / IDP: OCR, layout understanding, table extraction, reconciliation logic. Agentic systems: tool routing, planner/executor patterns, multi-agent orchestration. Data engineering basics: pipelines, ETL, data quality, metadata-driven ingestion. Containers & orchestration: Docker, Kubernetes. Familiarity with governance frameworks and secure enterprise deployments.

Qualifications

Bachelor's degree in Computer Science / IT / Engineering (or equivalent practical experience). Certifications (nice to have): AWS/Azure, GenAI specialization, Kubernetes, security.

Design GenAI system architectures for enterprise use cases: RAG, agentic workflows, document intelligence (IDP), copilots, conversational assistants, and decision support. Define architecture for LLM orchestration, tool/function calling, memory, prompt management, and retrieval strategies. Translate non-functional requirements into design: latency, throughput, concurrency, availability, compliance, and data isolation.Hands-on Development (Core Expectation) Build and ship solutions using Python (must-have), and relevant GenAI frameworks (e.g., LangChain/LangGraph/CrewAI/Semantic Kernel or equivalent). Implement retrieval pipelines: chunking, embeddings, vector DB setup, hybrid search, reranking, metadata filtering, caching. Build structured output pipelines: JSON schema extraction, validation, reconciliation, deterministic post-processing, and HITL loops

Qualifications

Degree