63 llm engineer jobs at 34 companies in Killingly Center, CT

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Advanced Concepts Engineer
Arlington or Mount Laurel or San Diego or Fall River
$90k-$184k/yr HybridFull Time
Innovative Defense Technologies
Innovative Defense Technologies: A defense technology delivering mission-critical software and automated solutions to the U.S. government.
3+ YOEBachelor's in STEM or equivalent experience, 3-5+ years relevant experience, ability to obtain/maintain Secret clearance, experience with distributed systems, cloud deployment, Agentic AI/LLM, systems engineering, and ~10% travel.
Agentic AI, LLM, SysML, UML, C++, Python, MATLAB, DOORS, Agile
1w
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Principal Engineer- Network Engineering
Basking Ridge or Bloomington or Collegeville or Irving or Worcester or Pittsburgh or Aurora or Kent or Downers Grove or Bloomington
$107k-$205k/yr HybridFull Time
Verizon
VerizonNYSE: VZ: Provides wireless, broadband, and telecommunications services to customers.
6+ YOE6+ years in technical facilities planning or related disciplines; experience with PSC design, Python automation, LLM integrations, SQL/databases, Looker/Tableau, and cloud platforms; bachelor's degree or equivalent experience.
AutoCAD, Python, AWS, Azure, Kubernetes, Git, SVN, Looker, Tableau, PostgreSQL, pgvector, Oracle, SQL Server, Hadoop, REST, GraphQL, Anthropic Claude, GPT-4, Gemini, Microsoft Teams, dcTrack, Canvas, Clarity, vSAP, ERP-SAP Portal, COEP, 1ERP, NSAP, 1PSC-UNO, NPP, DRAAS, CCP
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Sr Data Engineer- Data Platform & AI Enablement
Johnston or United States
OnsiteFull Time
Citizens Financial Group
Citizens Financial GroupNYSE: CFG: Provides retail, commercial, and private banking services to customers.
6+ YOE6+ years data engineering experience; hands-on with streaming (Apache Spark, Beam, Flink) and Kafka; Java/Scala/Python; strong SQL; experience with Redshift, PostgreSQL, Snowflake, MongoDB; CI/CD (Bitbucket/Git); AWS/Azure; AI/GenAI/LLM pipelines.
Apache Spark, Beam, Flink, Apache Kafka, Java, Scala, Python, SQL, Redshift, PostgreSQL, Snowflake, MongoDB, Bitbucket, Git, Talend, DataStage, Java Spring Boot, React, TypeScript, Angular, AWS, Azure
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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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Principal AI Engineer - Evinova
Waltham, Massachusetts, United States
$145k-$190k/yr HybridFull Time
AstraZeneca
AstraZenecaLondon Stock Exchange: AZN: Global biopharmaceutical developing and manufacturing prescription medicines.
4+ YOEMaster's degree, 4+ years applied ML experience with deep learning/NLP/generative AI, expertise with LLMs, Python and ML frameworks, experience with AWS services, strong communication and technical leadership ability.
Python, TensorFlow, PyTorch, Google ADK, Crewai, LangChain, LlamaIndex, SageMaker, Bedrock, MSK, EKS, ECS, OpenSearch, C/C++, Rust, CUDA
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AI Platform Engineer
Boston or Springfield
$134k-$176k/yr HybridFull Time
MassMutual
MassMutual: Sells life insurance, retirement plans, and investment services.
2+ YOE2+ years platform/infrastructure/SRE experience; cloud-native experience (AWS, GCP, or Azure); delivered platform features to production; experience with IaC and GitOps (Terraform or Pulumi, ArgoCD); familiarity with Kubernetes and LLM serving frameworks.
AWS, GCP, Azure, Terraform, Pulumi, ArgoCD, Kubernetes, vLLM, Triton, Ray Serve, Degreed
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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
6d
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Mainframe Developer
Hartford, Connecticut, United States
$140k-$166k/yr HybridFull Time
Cognizant
CognizantNasdaq: CTSH: Provides IT consulting and digital business process services.
15+ YOE5+ Mgmt15+ years in software architecture with 5+ years leading mainframe modernization; deep legacy/mainframe and cloud architecture experience; GenAI and leadership skills; Java, API, Angular, AWS expertise.
COBOL, JCL, CICS, VSAM, DB2, Java, Spring Boot, Spring Cloud, REST, GraphQL, Angular, AWS, Docker, Kubernetes, ECS, EKS, Terraform, CloudFormation, Claude, LLM, CI/CD
5d
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Software Engineer II - Enterprise AI Products
Hartford or Saint Paul
$120k-$199k/yr OnsiteFull Time
Travelers
TravelersNew York Stock Exchange: TRV: Provider of commercial and personal property casualty insurance.
4+ YOEBachelor's in CS or related STEM and 4+ years software engineering; proficiency in Python, cloud (AWS/Azure), Kubernetes, CI/CD, REST APIs, LLM/AI integrations; strong communication and problem solving.
Python, JavaScript, TypeScript, Java, AWS, Azure, Kubernetes, RESTful APIs, Jenkins, GitHub Actions, Terraform, MongoDB, Temporal, MCP, LLM, Git, RAG
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Senior Applied AI Engineer
Holyoke, Massachusetts, United States
$141k-$171k/yr HybridFull Time
ISO New England
ISO New England: Operates the New England power grid and wholesale markets.
3+ YOEMaster's in EE/CS (PhD preferred); 3+ years power systems experience; 3+ years deploying AI/ML in production; cloud (AWS, Azure, GCP) experience; Python and software engineering skills; MLOps and agent/LLM familiarity.
Amazon Web Services (AWS), Microsoft Azure, Google Cloud Platform (GCP), Python, PSS®E, PSCAD, PowerWorld, DSATools, MLOps, CI/CD, RAG, LLM
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Staff Site Reliability Engineer
Newton, Massachusetts, United States
$160k-$205k/yr OnsiteFull Time
Manifold
Manifold: AI platform for life sciences data and research collaboration.
7+ YOE7+ years in infrastructure/DevOps/SRE with deep cloud (AWS/GCP/Azure), Terraform, CI/CD (Github Action), container tooling, identity systems, data platform services, and experience operating secure multi-account environments.
AWS, GCP, Azure, Terraform, Github Action, Okta, Auth0, Docker, ECS, Packer, Tailscale, WireGuard, Snowflake, Airflow, dbt, PostgreSQL, LLM, CI/CD
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Staff Software Development Engineer
Wellesley or Florida or Connecticut or Texas or Rhode Island or Massachusetts
$118k-$284k/yr HybridFull Time
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
5+ YOE2+ Mgmt5+ years full‑stack experience with strong UI (React/Angular) and backend skills, production coding in Python/Java/TypeScript/JavaScript, microservices, CI/CD, containerization, 2+ years LLM and GCP experience, and squad leadership.
React, Angular, Python, Java, TypeScript, JavaScript, GCP, BigTable, Spanner, GKE, Cloud Functions, CI/CD, LLM, LangChain, LlamaIndex, Vertex AI, OpenAI APIs, HuggingFace, GIT, Bitbucket, Artifactory, Jenkins
1mo
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Lead AI Security Engineer
Johnston, Rhode Island, United States
$121k-$173k/yr HybridFull Time
FM Global
FM Global: Providing commercial property insurance and loss prevention engineering.
7+ YOE7+ years in IT or cybersecurity (including 5+ years in security engineering); hands-on security engineering for cloud, APIs, identity, data protection and monitoring; practical AI/LLM security knowledge; experience defining security requirements and frameworks.
Microsoft Copilot, Claude, Azure AI Foundry, Azure, NIST Risk Management Framework, MITRE ATLAS, OWASP Top 10, OWASP guidance for large language model applications
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Full Stack Software Engineer, Atlas Applications
Waltham, Massachusetts, United States
$117k-$160k/yr OnsiteFull Time
Boston Dynamics
Boston Dynamics: Building advanced mobile robots for industrial and warehouse automation.
3+ YOE3+ years software engineering with full stack, API integration, frontend/backend, and LLM integrations.
React, Python, TypeScript, Postgres, Redis, Pinecone, Claude Code
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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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Staff Software Engineer - Hybrid
Charlotte or Columbus or Hartford
$116k-$174k/yr HybridFull Time
The Hartford
The HartfordNYSE: HIG: Provides property and casualty insurance, group benefits, and wealth management.
6+ YOE6+ years software engineering experience, Bachelor's degree or equivalent, US work authorization, hands-on Generative/Agentic AI and LLM experience, proficiency in Python and/or Java, AWS and Terraform experience, Angular and CI/CD familiarity.
LangChain, LangGraph, CrewAI, AutoGen, Python, Java, Amazon Web Services (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, vector databases, RAG
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Forward Deployed Engineer
Framingham or United States
$143k-$215k/yr FieldFull Time
Re:Build Manufacturing
Re:Build Manufacturing: Provides advanced engineering and US-based contract manufacturing services.
3+ YOE3+ years software engineering or technical implementation experience, Python and API proficiency, experience with LLMs/generative AI, cloud and enterprise integrations, strong communication, and ability to travel up to 75% domestically; U.S. work-authorization required.
Python, APIs, LLMs, Snowflake, Atlassian, SSO
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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
1w
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Senior Applied AI Engineer
Marlborough or San Diego
$100k-$130k/yr HybridFull Time
Hologic
HologicNASDAQ: HOLX: Develops medical technology for women's healthcare and diagnostics.
5+ YOE5+ years engineering experience with 2+ years building AI/ML or automation solutions; strong programming (Python, JavaScript/TypeScript, C#); Azure and modern LLM experience; stakeholder communication and production deployment track record.
Azure OpenAI, Azure, Claude, Microsoft Copilot, Python, JavaScript/TypeScript, C#, Power Automate, Logic Apps, LangGraph, Semantic Kernel, Model Context Protocol (MCP), OpenAI, Gemini, Microsoft Power Platform
2mo
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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