53 principal engineer jobs at 12 companies in Walpole, NH
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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
2w
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FAST Labs - Senior Principal Engineer - EO/IR Systems ($10K Sign On Bonus)
Merrimack, New Hampshire, United States
$133k-$226k/yr OnsiteFull Time
6+ YOEActive Secret clearance, bachelor's degree in a relevant technical field, 6+ years of optics or imaging experience, EO/IR systems expertise, systems engineering leadership, and MATLAB or Python proficiency.
MATLAB, Python, Model-Based Systems Engineering (MBSE)
2mo
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Field Engineer or Principal Field Engineer
Nashua or Manchester or Buffalo
$76k-$141k/yr FieldFull Time
2+ YOEU.S. citizen with active U.S. Government Secret clearance; bachelor's (or associate + experience) in engineering/technical discipline preferred; 2+ years (Field) or 5+ years (Principal) relevant experience; hands-on RF/electronics troubleshooting using oscilloscopes, spectrum analyzers, power meters and Linux; able to travel ~10% and lift 30 lbs; w...
Linux, Oscilloscope, Spectrum Analyzer, Power Meter, Digital Multi-Meter, Special Test Equipment (STE)
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Principal Project Engineer
Jaffrey, New Hampshire, United States
$113k-$169k/yr OnsiteFull Time
8+ YOEBachelor's or master's in process engineering, 8 years in medical, biotechnology, or biopharmaceutical manufacturing preferred, project management, GMP, quality regulations, and English fluency.
GMP
1w
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Principal Electrical Engineer
Fairfax or Concord
$114k-$211k/yr OnsiteFull Time
9+ YOEBachelor’s degree in electrical, computer, or related engineering; 9+ years’ related experience, or 7+ with a master’s; mixed-signal hardware, FPGA, PCB, integration, testing, and interface standards experience.
Verilog, VHDL, FPGA, microprocessor, High Density Interconnect (HDI), PCI, PCIe, cPCI, VME, VPX, VITA 46, VITA 65, logic analyzers, oscilloscopes, emulators
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Principal Project Engineer
Jaffrey, New Hampshire, United States
$113k-$169k/yr OnsiteFull Time
8+ YOERequires a BS or MS in Process Engineering, 8 years of relevant manufacturing experience preferred, project management expertise, GMP and quality regulation knowledge, strong communication, analytical, and documentation skills.
2mo
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Principal Systems Engineer
Merrimack, New Hampshire, United States
OnsiteFull Time
7+ YOERequires systems engineering experience including requirements management (DOORS), system-level design, modeling & simulation, verification/validation, test planning, cost estimating, and mentoring; Master\u0002s+7yrs or Bachelor\u0002s+9yrs and eligible for security clearance.
DOORS, Microsoft Office, Microsoft Excel, Microsoft Projects, MATLAB, Visio, CAMEO Enterprise Architecture
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Principal / Senior Principal Coastal Engineer or Scientist
Bedford, New Hampshire, United States
RemoteFull Time
10+ YOE10+ years coastal engineering experience; leadership; business development; client management; licensure preferred.
hydraulic modeling, data analysis, report writing
2w
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Principal RF Systems Engineer
Devens, Massachusetts, United States
$150k-$225k/yr OnsiteFull Time
15+ YOEBachelor's degree in electrical engineering, physics, or related field; 15+ years of hands-on high-power RF experience; expertise in RF design, instrumentation, controls, simulation, and systems integration.
Altium, CST, HFSS
3mo
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Principal Project Engineer (Jaffrey, New Hampshire, US, 03452)
Jaffrey, New Hampshire, United States
$113k-$169k/yr OnsiteFull Time
8+ YOEBS or MS in Process or Mechanical Engineering; 8+ years in medical/biotech manufacturing; strong PM and GMP knowledge.
GMP, Project Management, Quality Regulations
1w
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Senior Principal Antenna Engineer (Hybrid)
Merrimack, New Hampshire, United States
$133k-$226k/yr HybridFull Time
8+ YOEBachelor’s degree in engineering and 8 years of hands-on experience. Requires antenna, RF, link budget, and propagation modeling expertise; proficiency in Microsoft Office, MATLAB, and HFSS. U.S. citizenship required.
Microsoft Office, MATLAB, HFSS, FEKO
2w
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Principal Site Reliability Engineer (Hybrid)
Merrimack or San Diego
$118k-$201k/yr HybridFull Time
4+ YOERequires 4–6+ years of site reliability engineering, Juniper networking, cloud technologies, automation, storage, virtualization, and security clearance eligibility; Security+ required or obtainable within 90 days.
Juniper, Ansible, Helm Charts, NFS, JDFS, Ceph, S3, VMware, Open Stack, Azure Stack, Kubernetes, Terraform
1mo
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Principal Development Engineer – Flexible Printed Electronics
South Deerfield, Massachusetts, United States
$111k-$206k/yr OnsiteFull Time
2+ YOEEngineering degree with relevant professional experience (BS+6yrs/MS+4yrs/PhD+2yrs), experience with printed electronics, DOE, CAD/Adobe, Excel/Word/PowerPoint, JMP/Minitab, and leadership skills.
AutoCAD, Adobe Illustrator, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, JMP, Minitab
3w
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Principal Software Engineer/Developer
Merrimack, New Hampshire, United States
OnsiteFull Time
3+ YOEBachelor's degree plus 5 years or master's degree plus 3 years of software engineering experience; expertise in Java, Spring Boot, Angular, cloud applications, APIs, databases, CI/CD, and DevOps tools.
Java, Spring Boot, Angular, Node.js, JIRA, SQL, NoSQL, Snowflake, CloudFormation, Jenkins, Shell Scripting, Datadog, Splunk, Git, uDeploy, Sonar
1w
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Senior Principal FPGA Design Engineer
Manchester or Totowa
OnsiteFull Time
8+ YOERequires 8+ years relevant experience with a bachelor's degree, FPGA or ASIC design, VHDL or Verilog HDL, timing analysis, high-speed interfaces, simulation, scripting, and Secret clearance eligibility.
FPGA, ASIC, VHDL, Verilog HDL, Xilinx Vivado, Intel Quartus, Altera Quartus, Modelsim, Questa, GIT, CVS, Clearcase, Subversion, Perl, Tcl, Python, SERDES, PCIe, DDR2, DDR3, DDR4, LVDS, ADC, DAC
2mo
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Principal Security Engineer -DLP AI Security Automation
Johnston or Boston or Iselin or Pittsburgh or Manchester
$145k-$180k/yr HybridFull Time
8+ YOEBachelor's in CS/Cybersecurity or equivalent, 8+ years info security (4+ years DLP/CASB/cloud protection), hands-on DLP platform expertise, SIEM/SOAR integrations, AI/automation workflows, knowledge of GLBA/PCI/SOX/GDPR, scripting experience.
DLP, CASB, DSPM, SSE, SIEM, SOAR, Python, PowerShell, KQL, AWS, Azure, GCP
1mo
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Principal Functional Lead, Quality Programs
Merrimack, New Hampshire, United States
$115k-$140k/yr HybridFull Time
7+ YOEBachelor in engineering/science, 7+ years in medical device/pharmaceutical/regulated industry, strong QMS knowledge (CAPA, audits), FDA/ISO13485 familiarity, ERP and Microsoft Office proficiency.
Microsoft Word, Microsoft PowerPoint, Microsoft Excel, SAP
2mo
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Senior Managing Consultant or Principal, LSP in Massachusetts
Boston or Westford or Amherst or Portland or Hartford
$136k-$221k/yr HybridFull Time
10+ YOEMassachusetts Licensed Site Professional (LSP) mandatory; 10+ years in site investigations/remediation; degree in environmental science, geology, or engineering; strong project management and communication skills.
Environmental software, Data analysis tools, Modeling software
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