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44 llm engineer jobs at 29 companies in Hamden, CT

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AI LLM Engineer (Ridgefield, CT, United States, Connecticut)
Ridgefield, Connecticut, United States
$115k-$222k/yr OnsiteFull Time
Boehringer Ingelheim
Boehringer Ingelheim: Researches and develops pharmaceutical products for humans and animals.
3+ YOEExperienced in DevOps/ML environments with LLMs, RAG, vector DBs and knowledge graphs; prompt engineering, MLOps/CI/CD, model optimization (LoRA/QLoRA), observability, and cross-functional collaboration. Must be authorized to work in the U.S.; post-offer drug test possible.
LLM, RAG, LoRA, QLoRA, CI/CD, MLOps, API, vector database, knowledge graph, observability systems
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2mo
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Lead Software Engineer (Python, LLM) - AskGartner
Irving or Stamford
$116k-$170k/yr HybridFull Time
Gartner
GartnerNYSE: IT: Provides research and advisory services for business leaders.
Expert-level Python; backend services; FastAPI; AWS/Azure; SageMaker Pipelines; Pytest; PostgreSQL; Pandas; Git.
Python, Python FastAPI, AWS, Azure, AWS SageMaker Pipelines, pytest, Git, PostgreSQL, Parquet, JSON, CSV, Pandas, LangGraph, LangChain, OpenAI, Anthropic, Google, Locust, JMeter, AWS Athena, AWS S3, IAM, Splunk, AWS Secrets Manager, PySpark, Docker, Kubernetes, Terraform, OpenSearch, RAG systems, Cache technologies
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Senior Software Engineer
South Windsor or Charlotte
HybridFull Time
RCN Capital
RCN Capital: A national private lender providing financing for real estate investors.
7+ YOE7+ years software development experience with 3+ years in a senior/lead capacity. Strong experience with Microsoft .NET 10, C#, React, TypeScript, Azure, PostgreSQL, cloud-native architectures, CI/CD, and AI/LLM integrations. Bachelor's required.
Microsoft .NET 10, C#, React, TypeScript, Entity Framework Core, PostgreSQL, CosmosDB, Microsoft Azure OpenAI Services, Microsoft Azure Functions, Microsoft Azure App Services, Microsoft Azure Service Bus, Microsoft Azure Key Vault, Microsoft Azure AI Search, Microsoft Azure DevOps, GitHub Actions, LangChain, Semantic Kernel, Docker, Kubernetes, Tailwind CSS, Redux, Zustand
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AI Principal Engineer
Boston or Hartford or Missouri
$192k-$240k/yr OnsiteFull Time
Voya Financial
Voya FinancialNYSE: VOYA: Provides retirement, investment, and insurance products and services.
Bachelor's in CS/Engineering/Math required (advanced degree preferred). Significant experience delivering production AI/ML systems, proficiency with Python/TypeScript/Rust, LLM and MLOps knowledge, model lifecycle and MLOps practices, and leadership of technical initiatives.
Python, TypeScript, Rust, LLM, MLOps
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AI Agent Engineer
Stamford, Connecticut, United States
$140k-$180k/yr HybridFull Time
Valitana
Valitana: SaaS platform for institutional investment analytics and management.
3+ YOE3+ years software development experience with Python, hands-on LLM API experience (Anthropic/OpenAI), prompt/context engineering, multi-agent orchestration, security-first mindset, prototyping and production experience, and a bachelor's in a related field.
Python, Anthropic, OpenAI, C#, Angular, SQL Server, Markdown, MCP servers, LLM
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2d
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Cloud AI Engineer, Lead
Lincolnshire or Holtsville
$97k-$145k/yr HybridFull Time
Zebra Technologies
Zebra TechnologiesNASDAQ: ZBRA: Provides enterprise-grade hardware and software for asset tracking.
5+ YOEBachelor's degree,5+ years operations-style experience,expertise with Google Gemini Enterprise and ADK,multi-cloud GenAI platform experience (GCP,Azure,OpenAI,Anthropic),LLM/RAG knowledge,Kubernetes/Docker/CI/CD experience,Python scripting,cloud security and RBAC integration.
Google Gemini Enterprise, Agent Development Kit (ADK), Google Cloud Platform (GCP), Azure, OpenAI, Anthropic, Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), Model Context Protocol (MCP), Kubernetes (GKE/AKS), Docker, CI/CD, Python, PII masking, Role-Based Access Control (RBAC)
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Senior Operating Platform Engineer
New York City or Greenwich or Garden City or London or Dublin
$190k-$250k/yr OnsiteFull Time
Soros Fund Management
Soros Fund Management: Provides global asset management and family office services.
7+ YOE7+ years professional software engineering with 4+ years full-stack experience; expertise with Angular, C#/.NET, Python, Microsoft SQL Server, Snowflake, AWS, Kubernetes, CI/CD; AI/LLM workflows and financial services experience; strong communication.
Angular, C#, .NET, Python, Microsoft SQL Server, Snowflake, AWS, Kubernetes, CI/CD, LLM
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Agentic AI Developer
Bloomfield or Raleigh or Lafayette
$81k-$194k/yr HybridFull Time
CGI
CGINYSE: GIB: Provides information technology and business consulting services.
5+ YOE5+ years software engineering experience; deep hands-on expertise in Python, LLMs, prompt engineering, LangChain/LangGraph/LangSmith, RAG, embeddings, vector retrieval, agentic architectures; bachelor's degree in CS or related.
Python, LangChain, LangGraph, LangSmith, OpenAI, Azure OpenAI, SQL, Databricks, Anaconda
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2mo
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Generative AI Lead Engineer
Dallas or Stamford or Chicago
$120k-$140k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides global information technology and business process outsourcing services.
Generative AI, LLMs, prompt engineering; hands-on with .NET, React, Python; AI/ML architecture design (RAG); model training and optimization; Azure deployment
.NET, React, Python, LangChain, LlamaIndex, Claude, Azure
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1d
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Senior Principal, Forward Deployed Engineer
Atlanta or Austin or New York City or Chattanooga or Bloomfield or St. Louis or Denver or Philadelphia or Morris Plains
$174k-$290k/yr HybridFull Time
The Cigna Group
The Cigna GroupNYSE: CI: Provides health insurance and pharmacy benefit management services.
12+ YOE12+ years in software/AI engineering with deep expertise in LLMs, RAG, agentic systems, Python, cloud deployment, and responsible AI; strong stakeholder communication and leadership.
LLMs, RAG architectures, agentic systems, Python, SQL, Java, TypeScript, Go, AWS, Azure, GCP, Azure OpenAI, AWS Bedrock, Google Vertex AI, Anthropic
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Senior AI Engineer
United States or New York City or Palm Beach or Los Angeles or Miami or Greenwich or Westchester County or The Hamptons or San Francisco or Manhattan
$190k-$250k/yr RemoteFull Time
Atria Health Institute
Atria Health Institute: Membership-based concierge practice providing preventive, precision-based medical care.
4+ YOE4+ years building and operating LLM-powered production ML systems, strong Python, backend framework experience (FastAPI/Flask), LLM orchestration and retrieval design, Snowflake/dbt/Dagster/Airflow familiarity, evaluation systems, HIPAA/PHI knowledge, and strong written communication.
Python, FastAPI, Flask, Snowflake, dbt, Dagster, Airflow, vLLM, Triton, TGI, SGLang, LOINC, SNOMED CT, ICD-10, RxNorm, FHIR, HL7
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1d
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Mainframe Developer
Hartford, Connecticut, United States
HybridFull Time
Cognizant
CognizantNASDAQ: CTSH: Provides IT consulting and technology services to global enterprises.
15+ YOE15+ years software architecture experience with 5+ years leading mainframe modernization; deep mainframe and Java/AWS/GenAI expertise; strong leadership, reverse-engineering, and stakeholder management skills.
COBOL, JCL, CICS, VSAM, DB2, copybooks, Java, Spring Boot, Spring Cloud, REST, GraphQL, Angular, AWS, Claude, LLM, Docker, Kubernetes, ECS, EKS, Terraform, CloudFormation
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2mo
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AI Engineer
Plano or Purchase or Chicago
$94k-$156k/yr OnsiteFull Time
PepsiCo
PepsiCoNASDAQ: PEP: Global food and beverage manufacturer and distributor.
6+ YOEBachelor in CS/AI/ML or equivalent; 6-8 years software lifecycle; ML/LLM/agent systems; Python/Java; production-grade AI delivery; strong evaluation and automation.
Python, Java, FastAPI, asyncio, Pydantic, LangChain, LangGraph, CrewAI, MLflow, Arise, Docker, Kubernetes, Ray, Kafka, gRPC, Redis, Prometheus, OpenTelemetry, Grafana
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1mo
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Staff Software Engineer - Hybrid
Charlotte or Hartford or Columbus
$116k-$174k/yr HybridFull Time
The Hartford
The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.
6+ YOE6+ years software engineering experience, Bachelor's in CS or related (or equivalent), authorized to work in US without sponsorship, hands-on Generative/Agentic AI and LLM experience, Python and/or Java, AWS services, Angular, Terraform, CI/CD (Jenkins/GitHub Actions), strong design and leadership skills.
Large language models (LLMs), Retrieval-augmented generation (RAG), LangChain, LangGraph, CrewAI, AutoGen, Python, Java, AWS, Lambda, DynamoDB, S3, SQS, SNS, API Gateway, ALB, Step Functions, IAM, Angular, Terraform, Jenkins, GitHub Actions, Guidewire ClaimCenter, FastAPI, Flask, Spring Boot, Docker, ECS, EKS, CloudWatch, Datadog, Splunk, pytest, JUnit, Karate
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3w
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Software Engineer
Hartford, Connecticut, United States
$73k-$130k/yr HybridFull Time
UnitedHealth Group
UnitedHealth GroupNYSE: UNH: Provides health insurance and technology-enabled health care services.
2+ YOEBachelor's in a technical field, 2+ years building and deploying AI/ML or generative AI solutions in production, Python proficiency, experience with agentic workflows and RAG solutions, familiarity with LLM frameworks such as LangChain or LangGraph.
Python, LangChain, LangGraph
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AI/ML Lead Engineer
Stamford or San Ramon or San Mateo
$180k-$212k/yr HybridFull Time
Franklin Templeton
Franklin TempletonNYSE: BEN: Global investment firm providing asset and wealth management services.
5+ YOE5+ years software engineering experience including 2+ years deploying LLM/GenAI or agent-based systems; expert Python; experience with LangChain/OpenAI tool calling, vector DBs (Pinecone, FAISS), RAG, observability, and distributed services.
LangChain, OpenAI, Python, Pinecone, FAISS, Docker, Kubernetes, AWS, Azure, GCP
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2w
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Principal Engineer, Optimization
East Hartford, Connecticut, United States
$108k-$205k/yr HybridFull Time
RTX
RTXNYSE: RTX: RTX provides advanced aerospace and defense systems and services.
5+ YOEPhD in Operations Research/Computer Science/Applied Math, 5+ years industrial experience, expertise in discrete optimization, mixed-integer programming, deep learning for vision, and LLM/VLM integration; proficiency with Python, MATLAB, C++, and Git.
Python, MATLAB, C++, Git, Large language models (LLMs)
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Senior Software Development Engineer - Microservices
Hartford, Connecticut, United States
$102k-$204k/yr HybridFull Time
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
5+ YOE2+ Mgmt5+ years software engineering, 2+ years technical lead experience; strong Python and API framework skills; experience with microservices, GCP, Kubernetes/GKE, Docker, CI/CD, Kafka, BigQuery/BigTable/SQL; hands-on GenAI/LLM/RAG/Agentic AI and prompt engineering.
Python, FastAPI, Flask, Google Cloud Platform (GCP), Kubernetes (GKE), Docker, CI/CD, GitHub, Kafka, BigQuery, BigTable, SQL, Gemini, Vertex AI, OpenAI, Claude
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2mo
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AI Engineer
Plano or Purchase or Chicago
$94k-$156k/yr HybridFull Time
PepsiCo
PepsiCoNASDAQ: PEP: Global manufacturer and distributor of snacks and beverages.
6+ YOEBachelor’s in CS/AI/ML or equivalent experience; Master’s preferred. 6-8 years in software life cycle; strong ML/LLM/agent experience; Python/Java; distributed systems; ML tooling; productionization.
Python, Java, FastAPI, asyncio, Pydantic, LangChain, LangGraph, CrewAI, MLflow, Arise, Docker, Kubernetes, Ray, GPU utilization, Kafka, gRPC, Redis, Prometheus, OpenTelemetry, Grafana, Microservice architectures, Memory architectures, Vector DBs
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Senior Software Engineer - Enterprise AI Products
Hartford or St. Paul
$139k-$230k/yr HybridFull Time
Travelers
TravelersNYSE: TRV: Provide property and casualty insurance for individuals and businesses.
6+ YOEBachelor's in CS or STEM required, 6+ years software engineering, production ML/AI and LLM experience, Python proficiency, cloud (AWS/Azure), Kubernetes, REST APIs, CI/CD, Terraform, MongoDB, Temporal, strong leadership and stakeholder skills.
Python, JavaScript, TypeScript, Java, AWS, Azure, Kubernetes, RESTful APIs, Jenkins, GitHub Actions, Terraform, MongoDB, Temporal, MCP server
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