72 principal engineer jobs at 27 companies in Manchester, CT
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Transportation Principal Engineer (Engineering)
Newington, Connecticut, United States
$130k-$182k/yr HybridFull Time
9+ YOE1+ MgmtRequires nine years of complex transportation engineering experience, including one year supervising transportation engineering design projects, PE licensure, and a valid driver's license may be required.
FEMA Flood Insurance Studies (FIS), National Flood Insurance Program (NFIP)
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Principal Engineer, Airworthiness Office (Onsite)
East Hartford, Connecticut, United States
$108k-$205k/yr OnsiteFull Time
8+ YOEBachelor's in Engineering (STEM) required, 8+ years airworthiness/certification experience (or advanced degree with 5+ years), active DoD Secret clearance, ability to obtain/maintain U.S. security clearance, strong communication and stakeholder coordination skills.
2mo
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Principal Mechanical Engineer - Instruments
Orange or Sunnyvale
$220k-$330k/yr OnsiteFull Time
15+ YOEBachelor’s or Master’s in Engineering; 15+ years medical device exp; advanced mechanical instrument development; regulatory compliance; design leadership and mentorship.
Mechanical Engineering, Robotics, Medical Devices, Regulatory Compliance
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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.
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)
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Principal Engineer/Scientist - MA Licensed Site Professional
Wakefield or Boston or Braintree or Clifton Park or Manchester or Middletown or Portland or Springfield
$131k-$223k/yr HybridFull Time
15+ YOEMassachusetts Licensed Site Professional; 15+ years environmental consulting; BS in Engineering/Geology/Hydrogeology; Massachusetts market experience; active LSP certification.
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Principal CI Engineer
Warren, Massachusetts, United States
$119k-$149k/yr OnsiteFull Time
8+ YOEBachelor's degree, 8+ years in operations/industrial engineering/lean/CI or materials/planning, expertise in Lean and Six Sigma, strong leadership and communication, must be US citizen.
5S, SIPOC, PFMEA, MSA, SMED, TPM, Kanban, Line Balancing, VRK, PFEP, RACI, SWIP, SIOP, IFS, ERP, Manufacturing Execution Systems
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Water Infrastructure Principal Engineer
Foxborough or Providence or Rocky Hill
$158k-$204k/yr HybridFull Time
15+ YOEBachelor's in Civil/Environmental Engineering required, Masters preferred; PE registration (CT or obtain within 6 months); 15+ years engineering experience; business development, client relations, and MS Office proficiency; valid driver’s license.
Microsoft Office
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Principal Engineer, Mechanical - Nuclear
Charlotte or Stonington
OnsiteFull Time
15+ YOEABET BS in Mechanical Engineering, PE license (preferred), 15+ years relevant nuclear engineering experience, ability to pass security screening, proficiency with Microsoft Office, strong communication and leadership skills.
PEPSE, Computational Fluid Dynamics (CFD), ASME Section III Code, ASME Section VIII Code, Microsoft Word, Microsoft Excel, Microsoft PowerPoint
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Mechanical Engineer Senior / Specialist / Principal
Groton, Connecticut, United States
OnsiteFull Time
5+ YOEBS/MS in Mechanical or Marine Engineering, 5+ years postgraduate engineering experience, willingness to work nights/weekends, travel possible, strong communication and organizational skills, SUBSAFE/Military spec experience preferred. Secret clearance required.
2w
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Principal Reliability Engineer - EDS
Hartford or Charlotte or Columbus or Chicago or United States
$153k-$229k/yr HybridFull Time
10+ YOE10+ years in data/cloud/platform/SRE with leadership; experience with Snowflake, EMR/Hadoop, AWS/GCP, Terraform/CloudFormation, Python, observability and SLO/SLI frameworks; US work authorization required.
AWS, GCP, Snowflake, EMR, Hadoop, ETL/ELT, Kubernetes, Terraform, CloudFormation, Python, CI/CD, Prometheus, Grafana, Datadog, Splunk, Dynatrace, OpenTelemetry, AWS Bedrock, SageMaker, Vertex AI
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
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Principal Embedded Software Engineer
New Haven, Connecticut, United States
$180k-$220k/yr OnsiteFull Time
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
2mo
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Principal Engineer/Scientist - MA Licensed Site Professional
Wakefield or Boston or Braintree or Clifton Park or Manchester or Middletown or Portland or Springfield
$131k-$223k/yr HybridFull Time
15+ YOEBachelor's in engineering/geology/hydrogeology, active Massachusetts Licensed Site Professional (LSP), 15+ years environmental consulting experience in Massachusetts; PE/PG/CT LSP preferred; ability to lead teams, prepare investigation and remedial plans, and serve as LSP-of-record.
2w
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Principal AI Engineer
Charlotte or Chicago or Columbus or Hartford
$168k-$253k/yr HybridFull Time
10+ YOEBachelor's degree in a technical field; 10+ years with cloud and software/platform infrastructure; Python and TypeScript; distributed systems, AI platforms, MLOps, RAG, vector search, and enterprise engineering.
Amazon Web Services (AWS), Google Cloud, Microsoft Azure, Python, TypeScript, CI/CD, Agile, LangGraph, crewai, NoSQL, ETL, RAG, ANN, KNN
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AI Principal Engineer
Boston or Hartford or Missouri
$192k-$240k/yr OnsiteFull Time
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
3w
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Principal Intelligent Transportation Systems Engineer / Senior Project Manager
New York City or Woodbury or Hartford or Rocky Hill
$155k-$210k/yr HybridFull Time
15+ YOEPE in NY, Bachelor’s in engineering, 15+ years ITS/traffic experience, leadership and client-development experience, familiarity with NTCIP/NEMA/IEEE/NEC, MicroStation and CADD, and ability to manage large multidisciplinary projects.
MicroStation, CADD, Microsoft Office
2mo
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Principal Software Development Engineer
Hartford, Connecticut, United States
$144k-$288k/yr HybridFull Time
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
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
3mo
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Principal Scientist – Antibody Discovery/Protein Design
Branford, Connecticut, United States
OnsiteFull Time
5+ YOEPhD in biochemistry, computational biology, or structural biology with 5+ years antibody/biotherapeutic engineering experience; AI/ML protein design; antibody display tech; multispecific protein design; strong cross-functional collaboration.
AI/ML, Yeast display, Phage display, Antibody engineering, Biophysical characterization, Multispecific protein design
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