Killingly Center • 50 milesRemote · Hybrid · Onsite · Field · All Environments
Killingly Center • 50 milesRemote · Hybrid · Onsite · Field · All Environments
Killingly Center • 50 milesRemote · Hybrid · Onsite · Field · All Environments
Killingly Center • 50 milesRemote · Hybrid · Onsite · Field · All Environments
56 principal software engineer jobs at 24 companies in Killingly Center, CT
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Principal Software Engineer
Bethesda or Waltham
$164k-$257k/yr HybridFull Time
8+ YOE8+ years software engineering; production-grade APIs; GraphQL; Node.js; TypeScript; Go; OAuth2/JWT; security; scalable SaaS APIs.
GraphQL, Node.js, TypeScript, Go, Jenkins, ArgoCD, Datadog, OAuth 2.0, JWT
2mo
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Principal Software Engineer
Waltham or North Bethesda
$200k-$225k/yr HybridFull Time
8+ YOE8–12+ years of software development; expert in Python, React/TypeScript, AWS; strong system architecture and enterprise integration experience; Bachelor's degree in CS/Engineering or related field.
Python, React, TypeScript, AWS
2mo
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Principal Software Engineer
Wellesley, Massachusetts, United States
$144k-$288k/yr HybridFull Time
8+ YOE8+ years software experience; 4+ years as technical leader; strong Python/Java; cloud (GCP); microservices; ML; real-time systems; UI (React/Angular).
Python, Java, GCP, React, Angular, Machine Learning, OCR, LLMs
3mo
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Principal Software Engineer - Core Infrastructure (Python/C++)
Newton or Mounds View
$153k-$229k/yr OnsiteFull Time
7+ YOEBachelor's or higher with 7+ years (or 5+ years with a Master’s; 3+ years with a PhD) in relevant software/engineering roles.
Python, C++, Linux, Real-time/embedded systems, IPC, Data pipelines, Software architecture
1w
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Software Principal Engineer
Hopkinton, Massachusetts, United States
$168k-$231k/yr OnsiteFull Time
10+ YOE10+ years managing enterprise-scale DevOps tools and CI/CD pipelines with GitHub Actions, self-hosted runners, GitHub Enterprise Server administration, security and secrets management, container orchestration, and automation; bachelor's/master's preferred.
GitHub, GitHub Actions, GitHub Enterprise Server, OKTA, S3, Docker, Kubernetes, JavaScript, Linux, Windows, macOS
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
2w
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Principal Software Engineer, Onsite
Marlborough, Massachusetts, United States
$108k-$205k/yr OnsiteFull Time
8+ YOE8+ years software engineering experience in lifecycle, architecture, embedded/RTOS, C++, Linux/VxWorks, security clearance and US citizenship required.
C++, Linux, VxWorks, UML, SysML, DevOps, Jenkins, Python, CORBA, Versal
1mo
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Principal Software Engineer
Johnston or Phoenix
OnsiteFull Time
7+ YOEBachelor's degree, 7+ years software development experience, leadership/mentoring experience, expertise with Node.js and Java/Spring, cloud and containerization experience, CI/CD tooling, security protocols, and AI-assisted development tools.
Node.js, Java, Python, Go, Angular, React, Spring, Spring Boot, AWS, Microsoft Azure, Google Cloud Platform (GCP), Docker, Kubernetes, OpenShift, Jenkins, Harness, Git, Bitbucket, Nexus, MySQL, PostgreSQL, Oracle, MongoDB, OAuth, SAML, GitHub Copilot, Large Language Models (LLMs), Retrieval-Augmented Generation (RAG), Kafka, Amazon Kinesis, Amazon SQS, Apache Storm
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Principal Software Engineer
Mansfield, Massachusetts, United States
$152k-$190k/yr RemoteFull Time
10+ YOE10+ years in software design and development preferred; expert C#, .NET, ASP.NET, Angular, and TypeScript; experience with AI/LLM integration, Python or .NET, full-stack applications, SDLC, and technical leadership.
Microsoft .NET, C#, ASP.NET, Angular, TypeScript, HTML, CSS, Python, OpenAI, Azure OpenAI, SQL, Microsoft SQL Server, AWS, LLMs, AI
2mo
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Principal Software Engineer – Audio Systems & Embedded Platforms
Framingham, Massachusetts, United States
$174k-$239k/yr OnsiteFull Time
10+ YOE10+ years embedded software and DSP, leadership of architecture, strong C/C++, audio/ANC/ANR, real-time embedded systems.
C/C++, MATLAB, Simulink, DSP, embedded systems, Linux
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Principal Software Engineer
Hartford or Charlotte or Columbus or Chicago
$168k-$253k/yr HybridFull Time
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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Principal Software Engineer/Developer
Smithfield, Rhode Island, United States
$132k-$166k/yr OnsiteFull Time
3+ YOEBachelor's or Master's in CS/Engineering/IT/IS plus 5 years (Bachelors) or 3 years (Masters) experience; expertise in automation for UI, API, DB testing using Selenium, Cucumber, RestAssured, Karate, Java; CI/CD and DevOps tools experience.
Selenium WebDriver, Selenium Grid, TestNG, Java, JavaScript, JUnit, Cucumber BDD, RestAssured, Karate, Playwright, MongoDB, PostgreSQL, Redis, Kafka, Git, Jenkins, Jira, Qtest, DataDog, Maven, JMeter, Appium, Eclipse, IntelliJ IDEA
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
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
1mo
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Principal Software Engineer
Waltham or Israel
RemoteFull Time
7+ YOE7+ years Python systems/CLI development, enterprise storage experience, strong Linux packaging and distribution skills, SSH/WinRM integration, container and CI/CD pipeline experience, and strong written communication.
Python, AADM, SnapSync, Ansible, Ansible Galaxy, InfiniBox, InfiniMetrics, InfiniSDK, SSH, Paramiko, WinRM, Podman, Docker, RPM, DEB, GitLab CI/CD, SQLAlchemy, pyvmomi, systemd
1mo
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Principal Embedded Software Engineer
Newark or Marlborough
$139k-$232k/yr HybridFull Time
12+ YOEExtensive embedded systems experience (RTOS, low-level firmware, device drivers), expert C/C++ and assembly skills, hardware/software integration, leadership and mentoring experience, familiarity with communication protocols (SPI, I2C, UART, CAN) and regulated medical device environments.
FreeRTOS, QNX, Zephyr, C, C++, Assembly, SPI, I2C, UART, CAN, Git, Perforce, Microsoft Azure DevOps, SVN, DICOM, HL7
3mo
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Principal Software Engineer - Core Infrastructure (Python/C++)
Newton or Mounds View
$153k-$229k/yr OnsiteFull Time
7+ YOEBachelor's or advanced degree with years of experience in software engineering; strong in Python/C++ and real-time, distributed systems; regulated environment experience preferred.
Python, C++, Linux
1mo
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Principal Embedded Software Engineer
North Kingstown, Rhode Island, United States
OnsiteFull Time
10+ YOE3+ MgmtBS/MS in computer engineering or related field; 10+ years embedded firmware experience, 3+ years leading architecture; expert C/C++; ARM Cortex-M and RTOS experience; UART/SPI/I2C/CAN/RS-485 protocols; hardware bring-up and debugging tools; Git.
C, C++, ARM Cortex-M, RTOS, UART, SPI, I2C, CAN, RS-485, JTAG, SWD, Oscilloscope, Logic Analyzer, Git
1w
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Principal Infrastructure & Systems Software Engineer
Newton, Massachusetts, United States
OnsiteFull Time
9+ YOE9+ years in systems/infrastructure software engineering; expertise in OS selection, real-time orchestration, IPC, hardware support; proficiency with Python, C++, Linux, GIT; experience with high-reliability and regulatory environments.
Python, C++, Linux, GIT, Yocto, Gentoo
2mo
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Principal Software Engineer (3D Visualization) - Electrophysiology
Waltham, Massachusetts, United States
$107k-$203k/yr HybridFull Time
5+ YOEBS/MS in Computer Science or related, 5+ years software development, strong C++ and OpenGL experience, EM/3D visualization, familiarity with full SDLC, strong problem-solving and communication skills.
C++, OpenGL, Qt, QML, Linux, Git, Jira, JAMA, Agile, Scrum
2mo
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Principal Software Engineer (3D Visualization) - Electrophysiology
Waltham, Massachusetts, United States
$107k-$203k/yr HybridFull Time
5+ YOEBS or MS in Computer Science or related field, 5+ years software development experience, strong C++ and OpenGL skills, OOP knowledge, UI/UX design experience, full lifecycle development, and strong communication.
C++, OpenGL, Qt, QML, Linux, Git, Jira, JAMA, Opal HDx Mapping System
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