255 senior software engineer jobs at 90 companies in Middletown, CT
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Senior Software Engineer
South Windsor or Charlotte
HybridFull Time
7+ YOESenior software engineer with 7+ years, lead/architect, full stack in .NET 10, React, TypeScript, Azure, PostgreSQL/CosmosDB; AI/GenAI, offshore teams.
React, TypeScript, Redux, Zustand, Tailwind CSS, C#, .NET 10, Entity Framework Core, Azure, Azure DevOps, GitHub Actions, PostgreSQL, CosmosDB, LangChain, Semantic Kernel, Docker, Kubernetes
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Senior Software Engineer
South Windsor or Charlotte
HybridFull Time
7+ YOE7+ years software development; senior/lead engineer; full stack with .NET, React/TypeScript; AI/GenAI; Azure; PostgreSQL/CosmosDB; cloud-native; offshore collaboration.
React, TypeScript, Redux, Zustand, Tailwind CSS, C#, .NET 10, .NET Core, Entity Framework Core, Azure Functions, App Services, Service Bus, Azure DevOps, GitHub Actions, PostgreSQL, CosmosDB, LangChain, Semantic Kernel, Docker, Kubernetes
2mo
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Senior Software Engineer
South Windsor or Charlotte
HybridFull Time
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
1mo
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Senior Software Engineer
Bristol or Burbank or Glendale
$142k-$190k/yr OnsiteFull Time
5+ YOE5+ years web/software engineering; mastery of HA Proxy, NGINX, Apache; extensive NodeJS and/or Java/Kotlin experience; AWS EC2, Fargate, Cloudfront; frontend web development; BS in Computer Science or equivalent.
HA Proxy, NGINX, Apache, NodeJS, Java, Kotlin, AWS EC2, Fargate, Cloudfront, JavaScript, TypeScript, React Native
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Senior Software Engineer - Product
Yonkers or Washington or Colchester or Arizona or California or Connecticut or Illinois or Maryland or Massachusetts or Michigan or New Hampshire or New Jersey or New York or Texas or Vermont or Virginia or District of Columbia
$115k-$160k/yr RemoteFull Time
5+ YOE5+ years software engineering experience; proficiency with React, React Native, Python (FastAPI); experience building multi-platform apps, CI/CD, automated testing, observability; strong communication; bachelor’s degree preferred.
React, React Native, Python, FastAPI, AWS, Azure, Google Cloud Platform, CI/CD
1mo
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Senior Software Engineer - Personal Insurance
Hartford or Atlanta or Cockeysville or Saint Paul
$139k-$230k/yr HybridFull Time
6+ YOE6+ years software engineering experience, bachelor's in CS or related STEM, strong engineering fundamentals, experience with enterprise systems, architectural decision-making, and Agile/DevOps practices.
Apex, Lightning Web Components, Salesforce APIs, AWS, Azure, Salesforce, CI/CD, DevOps
1mo
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Senior Software Engineer (AWS, Node)
St. Paul or Hartford
$139k-$230k/yr HybridFull Time
6+ YOEBachelor's in CS or related STEM (or equivalent experience), 6+ years software engineering experience, leadership experience, cloud and API proficiency, testing and CI/CD familiarity.
AWS, Serverless, EKS, Azure, REST, GraphQL, Terraform, AWS CDK, React.js, Node.js, JavaScript, TypeScript, Python, Kafka, DB2, MySQL, PostgreSQL, MongoDB, DynamoDB, NUnit, XUnit, Moq, Jest, Cypress, Git, GitHub, CloudBees Jenkins, Jenkins, Azure DevOps, OAuth 2.0, OpenID Connect (OIDC), Dynatrace, ELK, OpenTelemetry, Jira, Rally, Claude, GitHub Co-Pilot
2w
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Senior Software Test Engineer
Holyoke, Massachusetts, United States
$120k-$160k/yr HybridFull Time
5+ YOEBachelor's in CS/Engineering or equivalent,5+ years software testing with automated web/API testing,Java plus Python/JavaScript,Playwright/Selenium/Cypress,CI/CD (Jenkins),Git,Jira,SQL,and mentoring experience.
Playwright, Selenium, Cypress, Cucumber, Java, Python, JavaScript, SQL, Jenkins, Docker, Kubernetes, ECS, Terraform, AWS, Git, Jira, JUnit, TestNG, Postman
1d
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Senior Digital Software Engineer
Hartford, Connecticut, United States
$118k-$147k/yr RemoteFull Time
5+ YOERequires 5–8 years of software development experience, proficiency in multiple technologies, system design, API development, DevOps, CI/CD, observability, technical leadership, communication, and mentoring.
React, Node.js, Python, SQL, NoSQL, Microsoft Azure, Amazon Web Services (AWS)
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Senior Software Engineer
Glendale or Bristol
$149k-$199k/yr HybridFull Time
5+ YOE5+ years industry experience; proficiency in Java/Kotlin/Python/JavaScript; experience with microservices, REST APIs, AWS (S3, Lambda, EC2), SQL/MongoDB/OpenSearch, Apache Kafka, testing and code review.
Java, Kotlin, Python, JavaScript, AWS, S3, Lambda, EC2, SQL, MongoDB, OpenSearch, Apache Kafka
3w
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Senior Software Development Engineer - Microservices
Hartford, Connecticut, United States
$102k-$204k/yr HybridFull Time
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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Principal Software Engineer
Warsaw or Fridley or Mounds View or Brooklyn Park or Fort Worth or North Haven or Jacksonville or Boston or Lafayette
$153k-$229k/yr OnsiteFull Time
5+ YOEBachelor's + 7+ years software engineering or advanced degree + 5+ years; experience designing, developing, testing and deploying scalable, reliable software for manufacturing; leadership, mentoring, and cross-functional collaboration.
Ignition, deviseWISE, Azure, AWS, Docker, Kubernetes, Jenkins, Terraform, React, Angular, Node.js, ASP.NET, HTML5, CSS3, WebAPI, Microservices Architecture, Test-Driven Development, Agile & Scrum, CI/CD Pipelines, RESTful API Design, Java, C++, NET, Scala, Lua, Python, SQL
2mo
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Senior Software Developer (Hybrid or Remote)
Canton or Raleigh or Farmington or Boston
$101k-$143k/yr HybridFull Time
6+ YOE6+ years software development experience; expertise in .NET Core/C#, ASP.NET MVC, Entity Framework, Angular or React, Microsoft Azure; strong SQL Server and CI/CD experience; Bachelor’s or Master’s in CS/Engineering.
.NET Core, C#, ASP.NET MVC, Entity Framework, Angular, React, Microsoft Azure, Microsoft Azure Functions, Microsoft App Services, Microsoft Azure Storage, Microsoft Azure DevOps, SQL Server, CI/CD
1mo
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IT Senior Software Engineer (Hybrid)
Berlin or Westwood
$127k-$142k/yr HybridFull Time
5+ YOE5+ years experience; Bachelor's degree or equivalent; design and implement systems, drive release management, mentor engineers, able to respond to emergencies and travel between MA/CT/NH; Maximo experience a plus.
Maximo
2w
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Senior Software Engineer – Platform & Agentic AI Engineering
Hartford or Charlotte or Columbus or Chicago
$128k-$191k/yr HybridFull Time
6+ YOE6+ years software engineering with 2+ years GenAI/LLM multi-agent experience; hands-on with Agentic protocols (ADK,MCP), AlloyDB/Postgres, Vertex AI, Python/Typescript, Terraform, and production LangChain/LangGraph systems.
Google ADK, Anthropic MCP, LangGraph, LangChain, Python, Typescript, Terraform, GCP, AlloyDB, PostgreSQL, Postgres RDS, Vertex AI, Cloud Run, Cloud Storage, Secret Manager, LangSmith, GitHub Spec-Kit, OpenSpec, BMAD-METHOD, Claude Code, GitHub Copilot, AWS Kiro, CI/CD
6d
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Senior Software Engineer – Platform & Agentic AI Engineering
Charlotte or Chicago or Columbus or Hartford
$128k-$191k/yr HybridFull Time
6+ YOERequires 6–8 years of software engineering experience, including 2+ years in GenAI or LLM systems, Python or TypeScript, agentic protocols, LangChain, LangGraph, AlloyDB, GCP, Terraform, and CI/CD; bachelor's or master's preferred.
Google ADK, Anthropic MCP, LangGraph, LangChain, Python, TypeScript, Terraform, GCP, RAG, GraphRAG, AlloyDB, PostgreSQL, Postgres RDS, Vertex AI, Cloud Run, Cloud Storage, GitHub Spec-Kit, OpenSpec, BMAD-METHOD, LangSmith, LCEL, OAuth, SSO, IAM, Secret Manager, GitHub Copilot, Claude Code, AWS Kiro, pgvector, CI/CD
1mo
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Principal Software Engineer - Software Architect
Charlotte or Hartford
$130k-$190k/yr OnsiteFull Time
10+ YOE5+ Mgmt10+ years software engineering, 5+ years architecture; deep Microsoft Azure and AI/ML experience; proficiency with C#, Python, SQL, Terraform/Bicep/ARM, CI/CD, and enterprise data platforms.
Azure, Microsoft Fabric, C#, Python, SQL, Terraform, Bicep, ARM templates, CI/CD
3mo
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Lead Software Engineer (Hybrid)
Hartford, Connecticut, United States
$130k-$176k/yr HybridFull Time
7+ YOE7+ years software engineering experience with .NET/C#, Azure, cloud-native microservices, DevOps/IaC, AI integration, CI/CD, containerization, and leadership in engineering practices.
.NET, C#, ASP.NET Core, Azure, Azure AI Services, Cognitive Services, ML, OpenAI, Bot Services, Terraform, Bicep, ARM, Docker, Kubernetes, REST, GraphQL, Python, TensorFlow, PyTorch, Pega, Camunda, Appian, Angular, React, SQL, Kafka, RabbitMQ
5d
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Sr. Software Engineer Web
Shelton, Connecticut, United States
$119k-$149k/yr OnsiteFull Time
6+ YOE6–9 years of professional software engineering experience; JavaScript, Node.js, ReactJS, React Native, REST APIs, databases, version control, testing, and software architecture knowledge. Bachelor's degree or equivalent experience.
JavaScript, Node.js, ReactJS, React Native, REST APIs, CI/CD
1mo
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Principal Software Engineer
Warsaw or Fridley or Mounds View or Brooklyn Park or Fort Worth or North Haven or Jacksonville or Boston or Lafayette
$153k-$229k/yr HybridFull Time
5+ YOEBachelor’s degree + 7+ years software engineering or advanced degree + 5+ years; experience designing and developing scalable systems for manufacturing operations; mentoring, requirements capture, database architecture, CI/CD, and cross-functional collaboration; ability to travel 25%.
Ignition, deviseWISE, Microsoft Azure, AWS, Docker, Kubernetes, Jenkins, Terraform, React, Angular, Node.js, ASP.NET, HTML5, CSS3, WebAPI, Microservices Architecture, CI/CD Pipelines, RESTful API Design, Java, C++, .NET, Scala, Lua, Python, SQL
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