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42 sr principal software engineer jobs at 19 companies in Connecticut

2mo
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Principal Engineer
Alabama or Arizona or Arkansas or California or Colorado or Connecticut or Florida or Georgia or Hawaii or Idaho or Illinois or Indiana or Iowa or Kansas or Kentucky or Maryland or Massachusetts or Michigan or Minnesota or Missouri or Nevada or New Hampshire or New Jersey or New Mexico or New York or North Carolina or Ohio or Oklahoma or Oregon or Pennsylvania or Rhode Island or South Carolina or Tennessee or Texas or Vermont or Virginia or Washington or Wisconsin
$210k-$262k/yr RemoteFull Time
Fuze Health
Fuze Health: Integrated digital health, home diagnostics, and virtual pharmacy platform.
10+ YOEBachelor's in CS or related; 10+ years software engineering experience with 3+ years at staff/principal level; deep expertise in AWS, PostgreSQL, Ruby on Rails, Python, TypeScript/JavaScript; experience building scalable, high-throughput systems; strong communication; U.S. work authorization required.
AWS, PostgreSQL, Ruby on Rails, Python, TypeScript, JavaScript, Slack, GSuite, Jira, HL7, FHIR, NCPDP, EHR
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2w
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Sr. Principal Engineer – Agile Software Development – CDS / Engine System Software P5 (Onsite)
East Hartford, Connecticut, United States
$132k-$252k/yr OnsiteFull Time
RTX
RTXNYSE: RTX: Provides advanced aerospace and defense systems and services.
10+ YOEBachelor's degree in STEM and 10 years of engineering experience, or an advanced degree and 7 years of experience. Requires U.S. citizenship and software development experience; Agile and safety-critical experience preferred.
Agile, DO178B
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1w
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Senior Principal Software Engineer
United States or Phoenix or Dallas or Charlotte or California or Connecticut or New York or Colorado or Illinois or Minnesota or Washington or Nevada or Maryland or New Jersey or Hawaii or District of Columbia or North Dakota or Mississippi or Rhode Island or Vermont or Wyoming
$150k-$226k/yr RemoteFull Time
Shutterfly
Shutterfly: Manufacturer and retailer of personalized photo products and gifts.
12+ YOEBachelor's in engineering or computer science and 12+ years of software engineering experience, distributed systems expertise, large-scale architecture, cloud operations, coding, and technical strategy leadership.
LLMs, vector databases, orchestration frameworks, A/B testing
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1w
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Senior Principal Software Engineer
Phoenix or Dallas or Charlotte or United States or California or Connecticut or New York or Colorado or Illinois or Minnesota or Washington or Nevada or Maryland or New Jersey or Hawaii or District of Columbia or North Dakota or Mississippi or Rhode Island or Vermont or Wyoming
$150k-$226k/yr RemoteFull Time
Shutterfly
Shutterfly: Manufacturer and retailer of personalized photo products and professional photography services.
12+ YOEBachelor’s degree in engineering or computer science and 12+ years of software engineering experience, including distributed systems, large-scale cloud systems, architecture, coding, and technical strategy leadership.
LLMs, vector databases, orchestration frameworks, A/B testing
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1mo
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Principal Software Engineer - Software Architect
Charlotte or Hartford
$130k-$190k/yr OnsiteFull Time
Talcott Financial Group
Talcott Financial Group: International life insurance group providing risk and retirement solutions.
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
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2mo
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Principal Software Engineer
Charlotte or Chicago or Columbus or Hartford
$168k-$253k/yr HybridFull Time
The Hartford
The HartfordNYSE: HIG: Provides property and casualty insurance and financial products.
12+ YOERequires 12+ years in enterprise application development, a computer science or engineering bachelor's degree, and expertise in Java, Spring Boot, Angular/TypeScript, SQL, APIs, cloud platforms, and distributed systems.
Java, Spring Boot, Angular, TypeScript, SQL, AWS, Application Insights, Splunk, APIs, microservices, CI/CD, DevOps, DevSecOps, Identity and Access Management, AI frameworks
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2mo
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Principal Software Engineer
Hartford or Charlotte or Columbus or Chicago
$168k-$253k/yr HybridFull Time
The Hartford
The HartfordNYSE: HIG: Provides business and personal insurance, group benefits, and investments.
12+ YOE12+ years enterprise application development experience, bachelor’s degree in CS/Engineering required, hands-on with Java, Spring Boot, Angular/TypeScript, SQL, cloud (AWS), APIs/microservices, observability tools; strong communication and AI-first experience.
Java, Spring Boot, Angular, TypeScript, SQL, AWS, Application Insights, Splunk, APIs, microservices, event-driven architectures, Identity and Access Management, AI frameworks, CI/CD, DevSecOps
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2mo
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Sr. Principal Engineer Software (Unit 42)
Connecticut, United States
$126k-$205k/yr RemoteFull Time
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade cybersecurity software, hardware, and services.
Requires modern AI knowledge, AI agent experience with frontier models, Python and SQL, REST APIs, databases, containerization, and communication skills. Docker, Kubernetes, and cloud exposure preferred.
Artificial Intelligence (AI), Gemini, Claude, Python, SQL, Elasticsearch, Cassandra, BigQuery, Docker, Kubernetes, REST APIs, RabbitMQ, Pub/Sub, React, AWS, GCP, Git, Gitlab CI, Airflow
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2mo
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Principal Software Development Engineer
Hartford, Connecticut, United States
$144k-$288k/yr HybridFull Time
CVS Health
CVS HealthNYSE: CVS: Provides retail pharmacy, health insurance, and pharmacy benefit management services.
10+ YOE10+ years software engineering experience with .NET/COBOL/Java/Node.js/JavaScript/Angular, DevSecOps and CI/CD expertise, GCP/Azure cloud experience, and experience modernizing enterprise systems.
.NET, COBOL, Java, Node.js, JavaScript, Angular, Generative AI technologies, GCP, Azure, GitHub, Jenkins, GitHub Actions, ArgoCD, Salesforce, Mulesoft, z/OS
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3mo
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Principal Engineer Software - Storage (Chronosphere)
Burbank or Denver or Chicago or Austin or Jacksonville or Hartford or Bridgeport or Seattle or Boston or New York City
$147k-$238k/yr RemoteAll Commitments Available
Palo Alto Networks
Palo Alto NetworksNASDAQ: PANW: Provides enterprise-grade network, cloud, and endpoint security software.
Design and build scalable backend services for high-volume telemetry data; strong backend skills; cloud infra experience; API design; mentorship.
Go, Java, Python, Rust, AWS, GCP, Azure, REST, gRPC, GraphQL
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2w
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Principal Engineer
California or Maryland or Texas or United States or Alabama or Arizona or Arkansas or Colorado or Connecticut or Florida or Georgia or Hawaii or Idaho or Illinois or Indiana or Iowa or Kansas or Kentucky or Massachusetts or Michigan or Minnesota or Missouri or Nevada or New Hampshire or New Jersey or New Mexico or New York or North Carolina or Ohio or Oklahoma or Oregon or Pennsylvania or Rhode Island or South Carolina or Tennessee or Vermont or Virginia or Washington or Wisconsin
$210k-$262k/yr RemoteFull Time
Fuze Health
Fuze Health: Technology-powered provider of digital pharmacy and home health services.
10+ YOEBachelor's degree and 10+ years of software engineering experience, including 3+ years at Staff or Principal level. Requires distributed systems expertise and AWS, PostgreSQL, Ruby on Rails, Python, TypeScript, and JavaScript.
AWS, PostgreSQL, Ruby on Rails, Python, TypeScript, JavaScript, Slack, Google Workspace, Jira, HIPAA, SOC 2, HL7, FHIR, NCPDP, EHR
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1d
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Principal Engineer-Annuity Platforms and Transformation
Bethlehem or Stamford or New York City or Holmdel
$127k-$208k/yr HybridFull Time
Guardian Life
Guardian Life: Provides life, disability, dental, and vision insurance products.
10+ YOEBachelor’s degree and 10+ years of software engineering experience. Requires enterprise platform leadership, insurance or annuity systems experience, API/event-driven architecture, cloud-native AWS development, and modern engineering tools.
Java, Spring Boot, .NET, Node.js, React, TypeScript, Next.js, Amazon Web Services (AWS), Amazon SNS, Amazon SQS, Apache Kafka, Amazon S3, OpenAPI, Swagger, Git, Jenkins, GitHub Actions, OAuth 2.0, JSON Web Token (JWT), Splunk, AppDynamics, JSON, XML, ALIP, ACORD, IRI Digital First, ACORD NGDS, DTCC Insurance & Retirement Services
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5d
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Principal Software Engineer – GIS & Spectrum Interface
Connecticut or New York or Maine
$130k-$225k/yr RemoteFull Time
SGC Power
SGC Power: Engineering and development services for power infrastructure projects.
6+ YOESix years of professional software development experience, strong C#/.NET and SQL skills, GIS technology experience, and a preferred bachelor's degree in a related field.
C#, .NET, ASP.NET, ASP.NET Core, SQL, Microsoft SQL Server, Oracle, Java, JavaScript, HTML5, CSS, ArcGIS Desktop, ArcGIS Pro, ArcGIS Server, ArcGIS Enterprise, Visual Studio, Git, Azure DevOps, Siemens Spectrum, Energy Management Systems (EMS), SCADA, ArcGIS Utility Network
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3w
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Principal Embedded Software Engineer
New Haven, Connecticut, United States
$180k-$220k/yr OnsiteFull Time
Bexorg
Bexorg: Developing whole-brain perfusion platforms for neurodegenerative drug discovery.
Extensive embedded systems experience, deep C/C++ and Python skills, RTOS and real-time control expertise, firmware-to-hardware lifecycle ownership, PCB/CAD/fabrication experience, and comfort in wet-lab hardware environments.
C, C++, FreeRTOS, Zephyr, Python, Altium, KiCad, SolidWorks, Onshape, I²C, SPI, UART, RS-485/Modbus RTU, CAN/CANopen, EtherCAT, USB, Ethernet, oscilloscope, logic analyzer, SWD/JTAG, Yocto, Buildroot, PREEMPT_RT, systemd, ROS 2, LabVIEW, AWS
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3w
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Principal Engineer (Data) - Channels Data Platforms and Analytics
Charlotte or Arizona or California or Colorado or Connecticut or Delaware or Florida or Georgia or Illinois or Indiana or Massachusetts or Maryland or Minnesota or North Carolina or New Jersey or New York or Pennsylvania or Tennessee or Texas or Utah or Virginia
HybridFull Time, Contract
FDM Group
FDM GroupLondon Stock Exchange: FDM: FDM provides IT consultancy and technology staff augmentation services.
12+ YOERequires 12+ years in data/software engineering, 8+ years designing enterprise data platforms, cloud modernization expertise, SQL and Python proficiency, and experience with distributed, legacy, and regulated systems.
Microsoft Azure, ADLS Gen2, Azure Event Hubs, Azure Key Vault, Databricks, Spark, Delta, Snowflake, Informatica, Kafka, Mainframe, Z Series, Oracle, PostgreSQL, Python, SQL, Java, Scala, Git, Azure DevOps, Jenkins, Docker, Kubernetes, OpenShift, Collibra, AppDynamics, Splunk, Grafana, Starburst, dbt, LookML, Great Expectations, Deequ, Purview
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2w
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AI Principal Engineer
Connecticut or Minneapolis or New York City or Atlanta or Missouri
$150k-$198k/yr OnsiteFull Time
Voya Financial
Voya FinancialNYSE: VOYA: Provides retirement, investment, and insurance products and services.
Requires a bachelor's degree and significant production AI/ML experience, including deployment and operationalization, plus Python, TypeScript, or Rust proficiency and AI/ML framework, LLM, data pipeline, and MLOps knowledge.
Python, TypeScript, Rust, LLM, MLOps
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3w
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Principal Software Engineer (Security & Policy Platform) (Remote)
San Jose or North Dakota or Montana or Maine or Ohio or Nebraska or Louisiana or Texas or Nevada or Hawaii or Georgia or Mississippi or Connecticut or Colorado or Wyoming or Wisconsin or West Virginia or Maryland or California or Vermont or New York or New Jersey or Arkansas or South Dakota or Pennsylvania or Michigan or Indiana or Idaho or Arizona or New Mexico or New Hampshire or Kentucky or Alabama or South Carolina or Illinois or Missouri or Massachusetts or Iowa or Tennessee or North Carolina or Minnesota or Kansas or Alaska or Rhode Island or Delaware or Washington or Virginia or Utah or Oregon or Florida or Oklahoma
$251k-$363k/yr RemoteFull Time
Cisco
CiscoNASDAQ: CSCO: Develops and sells networking hardware and cybersecurity software.
12+ YOEBachelor's in CS/EE or related and 12+ years designing large-scale distributed systems; experience with cloud/hybrid, security and privacy for platform systems; production coding in Go/Rust/C++; strong communication.
Go, Rust, C++
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5d
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Développeur(se) logiciel principal(e), écosystème Android | Senior Software Engineer, Android Ecosystem
Montreal or Massachusetts or Connecticut or Maryland or Florida or New York
$103k-$220k/yr HybridFull Time
Unity
UnityNYSE: U: Provides software for creating real-time 3D interactive content.
Advanced C++, C#, and Java or Kotlin proficiency; Android systems programming; platform or runtime systems experience; large multithreaded codebases; and diagnostic, debugging, and performance profiling skills.
C++, C#, Java, Kotlin, Vulkan, Unity Editor, AI
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2mo
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Principal AI Platform Engineer
Florida or Texas or Illinois or New York or New Jersey or Alabama or Arizona or Arkansas or Colorado or Connecticut or Delaware or Georgia or Indiana or Kansas or Massachusetts or Missouri or North Carolina or Tennessee or Utah or Wisconsin
$155k-$175k/yr RemoteFull Time
TradeStation
TradeStation: Provider of online brokerage services and trading technology.
7+ YOEBachelor's or equivalent, 7+ years software engineering experience building platform/infrastructure; hands-on with Python/TypeScript, REST/GraphQL, cloud (AWS), Docker/Kubernetes, IAM, LLM/agent integrations, CI/CD and observability.
Python, TypeScript, Go, C#, Node, REST API, GraphQL, Model Context Protocol (MCP), AWS, EKS, Docker, Kubernetes, OAuth2, OIDC, Keycloak, Entra ID, Auth0, Bash, PowerShell, GitLab CI, Helm
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6h
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Application Architecture, Sr. Principal
Oakland or Washington or Ohio or District of Columbia or California or Long Beach or Arizona or Colorado or Connecticut or Florida or Georgia or Maryland or Minnesota or Nevada or Oregon or El Dorado Hills or San Diego or Woodland Hills or Alabama or Illinois or Virginia or Wisconsin or Texas or New York
$182k-$308k/yr HybridFull Time
Ascendiun
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
12+ YOEBachelor's degree or equivalent experience and 12+ years in software engineering, application architecture, or platform engineering. Requires enterprise architecture expertise, microservices, cloud systems, APIs, Kubernetes, and technical leadership.
TypeScript, Node.js, NestJS, React, Next.js, Python, PostgreSQL, Azure Blob Storage, Snowflake, Azure Kubernetes Service, Azure API Management, Azure Service Bus, Dapr, Terraform, ArgoCD, GitHub Actions, Docker, Auth0, OAuth2, OpenID Connect, Nx, REST, OpenAPI, Kubernetes, CI/CD, Microsoft Azure, AWS, GCP
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