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31 principal software engineer jobs at 17 companies in Connecticut

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 OnsiteFull Time
Medtronic
MedtronicNYSE: MDT: Developing and manufacturing medical technologies and therapies globally.
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
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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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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
Medtronic
MedtronicNew York Stock Exchange: MDT: Develops and manufactures medical devices and digital health solutions.
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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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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1mo
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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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1mo
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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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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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1d
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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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3d
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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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1w
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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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1mo
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Principal Tetragon Software Engineer
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
$231k-$332k/yr RemoteFull Time
Cisco
CiscoNASDAQ: CSCO: Develops and sells networking hardware and cybersecurity software.
10+ YOE10+ years systems programming experience; strong Go and eBPF knowledge; Linux, distributed systems, and kernel-level experience; architecture and performance optimization skills.
Go, eBPF, C, C++, Java, Python, Rust, Kubernetes, Cilium, Tetragon, Splunk, Linux
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2mo
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Principal AI Solutions 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
$160k-$175k/yr RemoteFull Time
TradeStation
TradeStation: Provider of online brokerage services and trading technology.
4+ YOE4+ years in software/ML/data engineering with hands-on AI/LLM experience; bachelor's in CS/engineering/data science or equivalent; expertise with Databricks, Python, SQL, ML infra, cloud platforms, prompt engineering, RAG, observability, and BI tools.
Databricks, Databricks SQL Warehouses, Unity Catalog, MLflow, Python, SQL, Power BI, Sigma, Git, Jira, CI/CD, Kafka, Spark Streaming, Model Context Protocol (MCP), Delta Lake, Lakehouse, AWS, Azure, Google Cloud
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1mo
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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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Principal Applied AI Engineer, Finance
Menlo Park or Boston or Indianapolis or Durham or Washington or Missouri or Rhode Island or Maine or New York or Florida or North Carolina or Massachusetts or Illinois or Tennessee or Pennsylvania or Mississippi or New Jersey or Maryland or Michigan or Vermont or Minnesota or West Virginia or Louisiana or California or Ohio or Connecticut or South Carolina or Georgia or Delaware or Wisconsin or Virginia or Kentucky or Indiana
$194k-$341k/yr RemoteFull Time
Genesys
Genesys: Provides AI-powered cloud platform for customer and employee experiences.
8+ YOE8+ years building production AI/ML systems with Python, LLMs, MLOps and cloud (preferably AWS); expertise in time-series forecasting, predictive modeling, and agentic/Generative AI; strong software engineering and CI/CD experience.
Python, LLMs, Docker, Kubernetes, AWS, CI/CD, APIs, MLOps, RAG, vector databases
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1w
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Principal Engineer (Data) - Channels Data Platforms and Analytics
Charlotte or United States 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 New Jersey or New York or Pennsylvania or Tennessee or Texas or Utah or Virginia
HybridFull Time
FDM Group
FDM GroupLondon Stock Exchange: FDM: Provides IT consulting, technical training, and staff augmentation services.
12+ YOE12+ years data/software engineering, 8+ years designing enterprise data platforms, cloud modernization (Azure/Databricks/Snowflake/Kafka), SQL and Python proficiency, legacy modernization and architecture leadership in regulated environments.
Azure, ADLS Gen2, Event Hubs, Key Vault, Databricks, Delta, Snowflake, Informatica, Kafka, Mainframe, Oracle, Postgres, Python, SQL, Java, Scala, Git, Azure DevOps, Jenkins, Docker, Kubernetes, OpenShift, Collibra, AppDynamics, Splunk, Grafana, Starburst, Terraform, Bicep, dbt, LookML, Great Expectations, Deequ, Purview
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6d
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Principal Machine Learning Engineer, YM2026PMLE
Connecticut or Nebraska or Indiana or Arizona or Michigan or Missouri or Massachusetts or Illinois or Maine or California or Florida or Minnesota or Colorado or Iowa or Kansas or Mississippi or Georgia or Alabama or Kentucky or Idaho or Maryland or Norwalk
$177k-$217k/yr RemoteFull Time
FactSet
FactSetNYSE: FDS: Provides integrated financial data and analytical software solutions.
6+ YOEMaster’s degree in a technical field, 6 years of related experience, and 3 years using Python, Node.js, MongoDB, RabbitMQ, Redis or Memcached, Git, Elasticsearch, scikit-learn, NumPy, spaCy, NLP, and machine learning methods.
Node.js, MongoDB, RabbitMQ, Redis, Memcached, Git, Python, Elasticsearch, scikit-learn, NumPy, spaCy, SVM, XGBoost, RNN, LSTM
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3w
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Senior/Staff/Principal Backend Engineer, Platform & Data Ingestion
San Francisco or New York City or Arizona or California or Colorado or Connecticut or Florida or Georgia or Illinois or Louisiana or Massachusetts or Minnesota or North Carolina or New Jersey or Nevada or New York or Ohio or Pennsylvania or South Carolina or Tennessee or Texas or Washington or District of Columbia
$150k-$236k/yr HybridFull Time
Verana Health
Verana Health: Curates real-world clinical data to accelerate medical research and insights.
4+ YOE4+ years building scalable APIs, microservices, and high-volume ETL; experience with Scala/Elixir or typed languages, OpenSearch/Elasticsearch, OCR/document parsing, SQL and data modeling; strong communication skills.
Scala, Elixir, Java, C#, C++, OpenSearch, Elasticsearch, OCR, Postgres, MySQL, Databricks, Snowflake, BigQuery, AWS, GCP, Amazon SQS, Kafka, Google PubSub, TypeScript, Angular, React
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2w
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Principal AI Architect
Hartford or Stamford
$141k-$222k/yr OnsiteFull Time
AXA
AXAEuronext Paris: CS: Global provider of insurance, investment, and financial protection services.
Extensive software engineering and systems architecture experience; hands-on experience designing large-scale AI/ML systems; expertise in distributed systems, ML frameworks, and cloud platforms; leadership and mentorship experience.
TensorFlow, PyTorch, JAX, Python, Java, C++, Go, AWS, GCP, Azure, Docker, Kubernetes, Kubeflow, MLflow, SageMaker, Vertex AI, TensorFlow Serving, Triton
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10h
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Data Scientist, Principal - AI Product Engineering
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
$161k-$242k/yr HybridFull Time
Ascendiun
Ascendiun: Nonprofit parent overseeing health insurance and clinical service organizations.
10+ YOEBachelor's degree or equivalent practical experience and 10 years in data science, machine learning, AI/ML, software engineering, or advanced analytics. Requires Python, APIs, ML infrastructure, PyTorch, TensorFlow, LangChain, and LangGraph.
Python, PyTorch, TensorFlow, LangChain, LangGraph, Azure, Google Cloud, AWS, SQL, Spark, CI/CD, MLOps, LLMOps
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