AI Engineer

Blue Cross and Blue Shield of Massachusetts, Inc.; Hingham (MA); On-site; USD 140,000 - 171,000; Full time

Job summary

Blue Cross Blue Shield of Massachusetts, Inc. is seeking an experienced AI Engineer to design, build, and deploy intelligent AI assistants on Google Cloud Platform using Vertex AI and ADK.

You will craft multi-step agents, grounding, RAG, and orchestration for scalable, production-grade conversational workflows. The role emphasizes Python, LLM-based development, API design, and cloud-native patterns, with a focus on responsible AI and cost-efficient evaluation in production.

Qualifications

• A BS/MS in CS/ML or related field, or equivalent practical experience.
• 5+ years software engineering with at least 2+ years in AI/ML or LLM-based agent development.
• Hands-on with Google Cloud Platform services, especially BigQuery, Cloud Storage, Cloud Run, or Cloud Functions.
• Experience building agentic applications with LLMs, prompt engineering, embeddings, and RAG.

Responsibilities

• Design, build, and deploy intelligent AI assistants using Vertex AI and ADK.
• Create multi-step AI agents with tool use, sub-agents, callbacks, and session management for complex workflows.
• Integrate applications via Vertex AI SDKs for model invocation, tuning, and endpoints.
• Develop agent architectures with sequential, loop, parallel agents and custom hierarchies.
• Implement tool and function calling patterns to connect to enterprise APIs and databases.
• Apply responsible AI practices: safety filters, bias detection, guardrails, and content moderation.
• Architect scalable solutions using Vertex AI Agent Builder, Vertex AI Search, Cloud Run, Functions, Pub/Sub, and BigQuery.
• Develop evaluation and monitoring frameworks for quality, latency, cost and user satisfaction.

Skills

Python

LangChain

LlamaIndex

TensorFlow

PyTorch

API design

Git

CI/CD

Terraform

MLOps

Education

Bachelor's or Master's degree in Computer Science, Machine Learning, Data Science, or related field

Tools

Vertex AI Agent Builder

Vertex AI Search

Dialogflow CX

BigQuery

Cloud Run

Cloud Functions

Pub/Sub

Google Cloud Platform

Vertex AI SDK

Job description

About the Role

We are looking for an AI Engineer to join our AI Engineering team focused on designing, building, and deploying intelligent AI assistants powered by Google Cloud Platform (GCP) and Vertex AI. You will work at the intersection of large language models, cloud infrastructure, and product engineering to deliver conversational AI experiences that drive real business value.

What You'll Do

• Design and develop AI assistants using Vertex AI, including model selection, prompt engineering, grounding, retrieval-augmented generation (RAG), and agent orchestration.
• Build intelligent, multi-step AI agents using the Google Agent Development Kit (ADK), designing agent architectures with tool use, sub-agents, callbacks, and session management for complex conversational workflows.
• Develop and integrate applications using the Google Cloud AI/ML SDKs (Vertex AI SDK for Python, Google Gen AI SDK) for programmatic access to foundation models, embeddings, tuning, and prediction endpoints.
• Design agentic architectures leveraging ADK's orchestration capabilities including sequential agents, loop agents, parallel agents, and custom agent hierarchies to handle multi-turn, multi-domain use cases.
• Implement tool and function calling patterns within ADK agents, connecting them to enterprise APIs, databases, and external services to enable grounded, domain-specific responses.
• Implement responsible AI practices including safety filters, bias detection, guardrails, hallucination mitigation, and content moderation.
• Architect scalable, production-grade solutions using Vertex AI Agent Builder, Vertex AI Search, Cloud Run, Cloud Functions, Pub/Sub, BigQuery, and other GCP services.
• Develop evaluation and monitoring frameworks to measure assistant quality, latency, cost, and user satisfaction in production - including ADK's built-in evaluation and tracing capabilities.
• Collaborate with product managers, data engineers, and business stakeholders to translate requirements into AI-powered solutions.
• Stay current with the rapidly evolving AI landscape, evaluate emerging models, tools, and techniques, and recommend adoption where appropriate.

Required Qualifications

• Bachelor's or Master's degree in Computer Science, Machine Learning, Data Science, or a related field (or equivalent practical experience).
• 5 + years of experience in software engineering, with at least 2+ years focused on AI/ML or LLM-based agentic development.
• Hands-on experience with Google Cloud Platform services, particularly BigQuery, Cloud Storage, Cloud Run, or Cloud Functions.
• Hands-on experience with Vertex AI Agent Builder, Vertex AI Search, or Dialogflow CX.
• Hands-on experience with Google Cloud SDKs (Vertex AI SDK, Google Gen AI SDK) for model invocation, tuning, and deployment workflows.
• Strong proficiency in Python and familiarity with ML/AI frameworks and libraries (e.g., LangChain, LlamaIndex, TensorFlow, PyTorch).
• Experience building agentic applications that leverage large language models (LLMs) - including prompt engineering, function calling, embeddings, and retrieval-augmented generation.
• Solid understanding of API design, microservices architecture, and cloud-native development patterns.
• Familiarity with version control (Git), CI/CD pipelines, and Infrastructure as Code (e.g., Terraform, Cloud Build).

Preferred Qualifications

• Google Cloud certifications (e.g., Professional Machine Learning Engineer, Professional Cloud Architect).
• Exposure to multi-agent architectures, tool-use patterns, and agentic AI frameworks.
• Experience with vector databases (e.g., Vertex AI Vector Search, AlloyDB, Pinecone, Weaviate) and embedding-based retrieval.
• Knowledge of MLOps practices including experiment tracking, model versioning, A/B testing, and monitoring in production.
• Experience working in regulated industries (healthcare, finance, insurance) with an understanding of data privacy and compliance requirements.

Minimum Education Requirements: High school degree or equivalent required unless otherwise noted above

Location: Boston, Hingham
Time Type: Full time
Salary Range: $140,310.00 - $171,490.00

The job posting range is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting. We may ultimately pay more or less than the posted range, and the range may be modified in the future. An employee's pay position within the salary range will be based on several factors including, but limited to, relevant education, qualifications, certifications, experience, skills, performance, shift, travel requirements, sales or revenue-based metrics, and business or organizational needs and affordability.

This job is also eligible for variable pay.

We offer comprehensive package of benefits including paid time off, medical/dental/vision insurance, 401(k), and a suite of well-being benefits to eligible employees.

Note: No amount of pay is considered to be wages or compensation until such amount is earned, vested, and determinable. The amount and availability of any bonus, commission, or any other form of compensation that are allocable to a particular employee remains in the Company's sole discretion unless and until paid and may be modified at the Company's sole discretion, consistent with the law.

WHY Blue Cross Blue Shield of MA?

We understand that theconfidence gapandimposter syndromecan prevent amazing candidates coming our way, so we'd love to hear from you. It's in our differences that we will remain relentless in our pursuit to transform healthcare for ALL.

As an employer, we are committed to investing in your development and providing the necessary resources to enable your success. Learn how we are dedicated to creating an inclusive and rewarding workplace that promotes excellence and provides opportunities for employees to forge their unique career path by visiting ourCompany Culturepage. If this sounds like something you'd like to be a part of, we'd love to hear from you.

At Blue Cross Blue Shield of Massachusetts, we believe in wellness and that work/life balance is a key part of associate wellbeing. For more information on how we work and support that work/life balance visit our "How We Work" Page.