446 principal engineer jobs at 164 companies in Barrington, RI
1d
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Principal Engineer
Portsmouth or Boston or Indianapolis or Plano or Columbus
HybridFull Time
8+ YOEBachelor’s or master’s degree or equivalent experience; 8+ years delivering solutions in large distributed ecosystems; experience with AWS, microservices, and agile practices; proficiency in Java, Spring Boot, REST, Kafka, Kubernetes, DevOps, and CI/CD.
Tealium Tag Management, Tealium CDP, Adobe Analytics, Snowflake, Ensighten, Google Analytics, Google Tag Management, Content Square, HEAP, JavaScript, AWS, SQS, SNS, S3, CDK, Lambda, RESTful APIs, PCF, Kafka, Google Tag Manager (GTM), CJA, Customer Data Platform (CDP), Galileo.js, Galileo API, Java, Spring Boot, REST, Kubernetes, Bamboo, GitHub Actions, Jenkins, Scrum, Kanban, XP
2d
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Principal Engineer
London or Dagenham or Boston or East Providence or Denver or Cape Town
HybridFull Time
5+ YOEDeep technical leadership across complex ecommerce architecture, service and event contracts, data flows, reliability, migrations, peak-scale systems, cross-functional alignment, and AI-assisted development.
AI-assisted development, IMFG, Tulip, Backstage
1mo
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Principal Environmental Engineer
San Diego or Concord or Knoxville or Denver or Norfolk or Canton
$175k-$225k/yr RemoteFull Time
15+ YOEMaster's in Environmental Engineering, PE license, 15+ years environmental engineering experience (DoD/CERCLA), leadership experience on federal remediation projects, ability to travel, strong verbal and written communication.
3w
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Principal Automation Engineer
Lexington, Massachusetts, United States
$159k-$243k/yr HybridFull Time
12+ YOEBachelor's in Electronics Engineering plus 12 years' related experience. Deep experience with PLC/DCS/MES, large-scale control systems (100K+ I/O), lifecycle planning, upgrades, virtualization, integration, HMI development, and ICS cybersecurity.
PLC, DCS, Manufacturing Execution systems, HMI, ICS
1mo
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Senior Principal Systems Engineer
Dedham, Massachusetts, United States
$192k-$203k/yr OnsiteFull Time
10+ YOEBachelor's in systems engineering or related STEM plus 10+ years (or Master's plus 8+) experience, DoD Secret clearance, US citizenship, systems analysis, MBSE, DOORs, Linux experience preferred.
DOORs, Linux, Model-based Systems Engineering (MBSE)
3w
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Principal Engineer
Waltham, Massachusetts, United States
$173k-$193k/yr HybridFull Time
PhD (>8 yrs) or MS (>15 yrs) in Science/Engineering; expert in small-molecule process development, scale-up, tech transfer, DOE, data analysis, CDMO management; strong leadership and communication.
Process Analytical Technology (PAT)
3mo
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Principal Thermal Mechanical Engineer
Littleton, Massachusetts, United States
$154k-$211k/yr OnsiteFull Time
10+ YOEBachelor's degree in engineering; 10+ years experience; strong systems engineering and project leadership.
4d
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Principal Engineer, Actuation Systems Embedded Software
Tucson or Huntsville or Portsmouth
$108k-$205k/yr OnsiteFull Time
8+ YOESTEM university degree and 8+ years of relevant experience, or advanced degree and 5+ years. Requires embedded C/C++, MATLAB/Simulink, systems engineering, and documented software development experience.
C, C++, MATLAB, Simulink, FPGA, VHDL, UART, SPI, I2C, GIT, Subversion, MISRA-C
1w
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Principal Engineer, CMC Development Pilot Operations
Norwood, Massachusetts, United States
$143k-$257k/yr OnsiteFull Time
5+ YOEDegree in a relevant scientific or engineering discipline and 5–12 years of biopharmaceutical development experience depending on degree; requires pilot operations, LNP/formulation, technology transfer, team leadership, and mentorship experience.
LNP
1mo
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Principal Systems Engineer /Sr Principal Systems Engineer
Groton or Quonset Point
$109k-$163k/yr FieldFull Time
5+ YOEBachelor's degree in a STEM field required, U.S. citizenship and active U.S. Government Secret clearance required, 5+ years (Principal) or 8+ years (Sr Principal) relevant experience, willingness to travel up to 25% and work rotating/periodic shifts.
2mo
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Principal Engineer, Power Systems Engineering
Wilmington or San Jose or Durham
$157k-$227k/yr OnsiteFull Time
10+ YOE10+ years in power electronics/power systems; BSEE required, MSEE preferred; strong circuit fundamentals; travel up to ~10%; excellent communication.
Python, LabView, Oscilloscopes, Electronic Loads, Spectrum Analyzers
1mo
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Principal Systems Engineer /Sr Principal Systems Engineer
Groton or Quonset Point
$109k-$204k/yr OnsiteFull Time
5+ YOEU.S. citizen with active Secret clearance; Bachelor’s in STEM; minimum 5 years (Principal) or 8 years (Sr Principal) relevant systems/shipyard/strategic weapons experience; willing to travel ~25% and work rotating schedules; strong communication and test/installation experience.
1mo
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Principal Engineer, Hardware & Silicon Validation
Westborough or Santa Clara
$169k-$251k/yr OnsiteFull Time
5+ YOEExperience validating high-speed interfaces and SoC bring-up; proficiency in C/C++, embedded firmware, lab debug tools; bachelor’s degree in CS/EE (10+ years) or advanced degree (5+ years).
PCIe Gen5/Gen6, 100G/200G Ethernet, C/C++, Python, shell, oscilloscopes, protocol analyzers, traffic generators, SDK
1mo
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Principal Engineer, Transmission System Planning (Hybrid Schedule)
Westwood or Hartford or Berlin
$151k-$168k/yr HybridFull Time
10+ YOEMaster's in engineering required, 10+ years transmission planning and simulation experience, advanced power system modeling skills, PE preferred, proficiency with PSSE/PSCAD and programming (Python/VBA).
PSSE, PSCAD, Microsoft Office 365, Word, Microsoft Excel, Visio, SharePoint, OneDrive, Python, VBA, ASPEN Oneliner, EMTP (ATP), TARA, PI Processbook, Electronic Medical Records (EMR)
2mo
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Senior Principal Systems Engineer
Framingham, Massachusetts, United States
$185k-$255k/yr OnsiteFull Time
12+ YOE12+ years in complex product development; 7+ years in systems engineering/architecture; deep DSP, acoustics, electronics, sensors, AI/ML, embedded systems; strong communication and leadership.
DSP, Embedded Systems, AI/ML, Cloud Engineering, Data Analysis, Mobile Applications
3mo
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Principal Computer Vision Engineer
Boston or London
HybridFull Time
8+ YOE8+ years in software engineering with CV/real-time systems/ML deployment or robotics perception; strong Python and C/C++; production ML/CV experience on embedded/edge systems; leadership experience.
Python, C/C++, Docker, Linux, Embedded systems, Edge AI accelerators, Model optimization
2mo
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Principal Cloud Kubernetes Engineer
Boston, Massachusetts, United States
$140k-$206k/yr OnsiteFull Time
12+ YOE12+ years infrastructure/cloud/platform engineering experience, 7+ years Kubernetes in production, expertise in multi-cloud (AWS/Azure/GCP), GitOps, Terraform, Go/Python, platform architecture, security and observability.
Kubernetes, EKS, AKS, GKE, Rancher, Spectro Cloud Palette, Cilium, Calico, eBPF, Infrastructure as Code, GitOps, Argo CD, Flux, Fleet, Terraform, Helm, Kubernetes Operators, Prometheus, Grafana, OpenTelemetry, Loki, Kyverno, OPA/Gatekeeper, Portworx, CSI drivers, OpenEBS, Crossplane, Backstage, Istio, Linkerd, Consul, Go, Python, OIDC, SAML, LDAP, SBOM
3d
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AI Platform Principal Engineer
Milford, Massachusetts, United States
$152k-$253k/yr OnsiteFull Time
8+ YOERequires 8+ years in software, platform, cloud, or machine learning engineering; technical leadership of enterprise or cloud-native platforms; production AI experience; and expertise in cloud, distributed systems, security, and deployment practices.
AWS, Azure, GCP, Infrastructure-as-Code, CI/CD, LLM, Vector Database, RAG
1mo
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Americas Environmental Regulations and Standards Senior Principal Engineer
Austin or Franklin
$138k-$190k/yr OnsiteFull Time
12+ YOE12+ years engineering experience, leadership, negotiation, facilitation, analytical and problem-solving skills; experience with energy and standards regulations preferred.
3w
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Senior Principal Engineer, Agentic AI Platform, BYO Capability
Boston, Massachusetts, United States
$188k-$282k/yr HybridFull Time
Experienced software/ML engineer to design and productionize agentic AI platform capabilities; requires technical leadership, platform architecture, distributed systems, and enterprise AI operationalization experience.
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