89 principal software engineer jobs at 27 companies in Eliot, ME
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Principal Software Engineer
Westlake or Merrimack
HybridFull Time
4+ YOEBachelor’s degree preferred; 4+ years software engineering; strong Python/Java, AWS, CI/CD, Spring Boot, SQL; experience with automation, AI-assisted code, and mentoring.
Python, Java, Spring Boot, AWS, EKS, Docker, REST, Maven, JSON, Tomcat, Swagger, Message Queues, Concourse, Git, Jenkins, Artifactory, Veracode, uDeploy, Selenium, Cucumber, FitNesse, Oracle, SQL
1mo
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Principal Software Engineer
Westlake or Merrimack
OnsiteFull Time
8+ YOEBachelor's degree and 8+ years of software engineering experience. Requires Python or Java, cloud and containerization experience, CI/CD, automation frameworks, SQL, and strong analytical communication skills.
Python, Java, Spring Boot, AWS, EKS, Docker, Spring, REST, Web Services, Maven, JSON, Apache Tomcat, Swagger, Message Queues, Selenium, Cucumber, FitNesse, SQL, Oracle, Concourse, GIT, Jenkins, Artifactory, Veracode, uDeploy
1d
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Principal Software Engineer
Plano or Boston or Portsmouth or Indianapolis or Columbus or United States or Los Angeles or Philadelphia or San Francisco
$137k-$257k/yr HybridFull Time
8+ YOERequires 8+ years of software engineering experience, enterprise architecture and technical leadership, distributed systems expertise, cloud-native development, and proficiency with JavaScript/TypeScript, React, Node.js, and related tools.
JavaScript, TypeScript, React, Node.js, Next.js, Java, HTML/CSS, Micro Frontends, AWS, CDK, GitHub Actions, OAuth 2.0, OpenID Connect, OWASP Top 10, Playwright, JMeter, Datadog, Splunk, Bridgeway, MFE, CI/CD, DevOps, SecOps, Generative AI
1d
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Principal Software Engineer
Columbus or Plano or Indianapolis or Boston or Portsmouth
HybridFull Time
8+ YOERequires 8+ years of software engineering experience, enterprise architecture and technical leadership, distributed systems, cloud-native development, security, testing, DevOps, and a technical or business degree or equivalent experience.
JavaScript, TypeScript, React, Node.js, Next.js, Java, Micro Frontends, HTML/CSS, AWS, CDK, GitHub Actions, OAuth 2.0, OpenID Connect, Playwright, JMeter, Datadog, Splunk, Microsoft Bridgeway
1mo
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Principal Software Engineer
Burlington, Massachusetts, United States
$178k-$230k/yr HybridFull Time
10+ YOE2+ MgmtBachelor's in CS/CE or equivalent, 10 years professional software engineering experience with strong Java, object-oriented design, database and automation skills; 2 years technical leadership; experience with cloud projects and CI/CD tools.
Java, C#, React, SQL, SQL Server, PowerShell, Jenkins, GIT, JavaScript, SOAP, REST, XML, JSON, Azure
2d
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Principal Software Engineer (Sign On Bonus Available)
Merrimack, New Hampshire, United States
$118k-$201k/yr OnsiteFull Time
10+ YOEBachelor’s degree or equivalent experience, 10+ years of experience, active Secret clearance, C/C++ embedded development, software testing, Agile/DevSecOps, CI/CD, and technical team leadership.
C++, Linux, Python, Jira, Confluence, Bitbucket, Git, CI/CD
1mo
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Principal Software Engineer
Wilmington, Massachusetts, United States
$144k-$216k/yr OnsiteFull Time
8+ YOE3+ MgmtBachelor's degree or equivalent,8+ years quality engineering experience,3+ years technical leadership,proficiency in test automation,CI/CD,API testing,Agile.
Java, Python, C#, JavaScript, Selenium, Cypress, Playwright, Appium, RestAssured, MS Copilot, Jenkins, GitHub Actions, Azure DevOps, JMeter, Gatling, k6, Docker, Kubernetes, AWS, Azure
1mo
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Sr Principal Software Engineer
Nashua or Austin
$133k-$226k/yr OnsiteFull Time
8+ YOESecret clearance (recent or obtainable), strong C++, embedded/software development, OOP, testing/verification, familiarity with containers and DevSecOps, typically 8+ years experience.
C++, containers, DevSecOps
2mo
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Principal Embedded Software Engineer
Burlington, Massachusetts, United States
$180k-$200k/yr OnsiteFull Time
8+ YOE8+ years embedded software, C++ on Linux/Raspberry Pi, real-time, safety-critical, hardware-software integration; robotics experience preferred.
C++, Raspberry Pi, Linux, Real-time, Embedded
2w
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Principal Software Engineer
Woburn, Massachusetts, United States
$108k-$205k/yr OnsiteFull Time
8+ YOEU.S. citizenship and active transferable Secret clearance, Bachelor’s in STEM and ~8 years experience, proficiency in C/C++/Ada, agile/DevSecOps, CI/CD, debugging and mentoring skills.
C, C++, Ada, Bitbucket, Artifactory, JIRA, Confluence, Jenkins, Eclipse, Ansible, Red Hat Enterprise Linux, CI/CD, DevSecOps
2mo
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Principal Software Engineer (Python)
Hinjewadi or Pune or Burlington or Europe or Asia or North America
HybridFull Time
8+ YOEBachelor's in Engineering/CS, 8+ years experience (5+ with Python), strong OO design, experience building AI agents, CI/CD, cloud, containers, databases, excellent communication and problem-solving skills.
Python, Java, git, Bamboo, Jenkins, JSON, XML, HTTP, RESTful, PostgreSQL, MySQL, Kubernetes, K8s, Docker, Envoy, Terraform, Azure, AWS, CICD
2mo
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Principal Radar Software Engineer
Burlington, Massachusetts, United States
$175k-$210k/yr HybridFull Time
10+ YOEDegree in EE/CE/Physics/CS, 10+ years building radar/RF/signal-processing systems, strong C++ (Python a plus), ability to translate algorithms into production software, US work authorization required; clearance may be needed.
C++, Python, FPGAs
2mo
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Principal Engineer (Control Systems)
North Andover or United States
$115k-$135k/yr HybridFull Time
5+ YOEDesign, develop, test and maintain real-time embedded control software for medical devices; 5+ years in complex software-driven electro-mechanical systems; proficiency in MATLAB/Simulink, C/C++, Python; bachelor’s degree in engineering.
MATLAB, Simulink, StateFlow, C, C++, Python, Linux, Simulink Coder, Simscape
1mo
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Principal Software Engineer/Architect
Lowell, Massachusetts, United States
$164k-$236k/yr HybridFull Time
10+ YOE10+ years software development experience, proven architect experience, Java and cloud expertise, observability and CI/CD experience, experience with databases, analytics, messaging, and LLM/AI technologies; BS/MS in CS or equivalent.
Java, Datadog, Grafana, GCP, AWS, Azure, Kubernetes, SQL Server, PostGres, MySQL, MongoDB, Cassandra, BigQuery, Snowflake, Tableau, Looker, Kafka, RabbitMQ, Apache Beam, Spark, Boomi, LLM
3w
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Principal Software Engineer (Sign-on bonus available)
Nashua, New Hampshire, United States
OnsiteFull Time
6+ YOEBachelor's in CS/CE,6+ years' software engineering experience,proficient in C++,experience with testing/verification,ability to obtain/hold Secret clearance.
C++, GIT, Jira, Bitbucket, Visual Studio, Confluence, ClearCase, Linux
2w
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Sr Principal C++ Software Engineer
Burlington or United States
$140k-$260k/yr OnsiteFull Time
10+ YOEStrong C++ software development, C/C++ and STL programming, data structures, algorithms, complexity and performance tradeoffs, plus a BS with 10, MS with 7, or PhD with 5 years of experience.
C++, C, STL, C++23, Linux, TCP/IP
3w
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Principal Embedded Software Engineer – APKWS
Hudson, New Hampshire, United States
HybridFull Time
6+ YOEBachelor's in CS/CE or related and 6+ years experience, strong C/C++ skills, RTOS and embedded development, hardware-software co-design, low-power SBC experience, ability to obtain Secret clearance.
C, C++, RTOS
2mo
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Principal Embedded Software Engineer
Ashburn or Boston or Nashua or Tewksbury
$125k-$175k/yr OnsiteFull Time
10+ YOEU.S. citizenship and active DoD clearance required. Bachelor's in EE or CE with 10+ years' experience. Hands-on C/C++, Linux/VxWorks, device drivers, bootloaders, scripting, Python, LabVIEW, and embedded development tools. Strong troubleshooting and documentation skills.
C, C++, Linux, Red Hat, LynxOS, Wind River, VxWorks, bash, csh, Python, LabVIEW, IPMI, Visual Studio, Eclipse, Vivado, Vitis, PetaLinux, GCC, CMake, Yocto, U-Boot, BIOS, SlimBootLoader, Microsoft Office
2mo
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Principal / Senior Software Engineer (C++, Linux)
Salem, New Hampshire, United States
OnsiteFull Time, Contract
Strong C++ and Linux experience, Python scripting familiarity, microservices (REST APIs, MQTT), production distributed systems support, debugging, releases, and technical documentation skills.
C++, Python, Linux, REST APIs, MQTT
2mo
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Principal Software Engineer, Semantic Data Services
Portland or San Francisco or Chicago or Boston
$201k-$250k/yr OnsiteFull Time
12+ YOE12+ years building and scaling large data platforms; expertise in distributed systems, data acquisition, semantic modeling, data lifecycle, and cross-domain architecture; strong leadership and communication.
Spark, Iceberg, Kafka, Delta, DBT, Ray, Airflow, Dagster, Flink
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