43 principle developer jobs at 27 companies in Epping, NH
2mo
Save
Mark Applied
Hide
Principle Thermal Mechanical Engineer
Littleton, Massachusetts, United States
$154k-$211k/yr OnsiteFull Time
7+ YOEMaster's (thesis) in Mechanical Engineering, 7+ years designing fluid systems, 3+ years at senior/principal level, expertise in fluid dynamics/heat transfer, SolidWorks/CAD experience, product development experience.
SolidWorks, CAD
2mo
Save
Mark Applied
Hide
Principle Thermal Mechanical Engineer
Littleton, Massachusetts, United States
$154k-$211k/yr OnsiteFull Time
7+ YOEMaster's (thesis) in Mechanical Engineering, 7+ years designing fluid systems, 3+ years at senior/principal level, expertise in fluid dynamics and heat transfer, SolidWorks CAD experience, product development and technical leadership experience.
SolidWorks CAD
1mo
Save
Mark Applied
Hide
Principle RF/Microwave Engineer
Nashua, New Hampshire, United States
$118k-$201k/yr OnsiteFull Time
4+ YOEBachelor's in engineering/science with 6+ years (or Master’s with 4+ years), US person able to obtain Secret clearance, experience designing microwave modules, EM modeling proficiency, Keysight ADS preferred, strong communication skills.
Keysight ADS
2mo
Save
Mark Applied
Hide
Principle Software Engineer, AI Observability & Evals Platform
Boston or San Francisco or New York City
$230k-$270k/yr OnsiteFull Time
10+ YOE10+ years backend or full-stack engineering; strong Python/Go; TypeScript/React; architectural decisions; reliable, scalable systems; mentoring.
Python, Go, TypeScript, React
3w
Save
Mark Applied
Hide
Principle Systems Engineer - Anti-Tamper
Nashua, New Hampshire, United States
OnsiteFull Time
4+ YOEBachelor's degree plus 4+ years experience; systems engineering, hardware/software integration, writing requirements, architecture definition, validation/verification; ability to obtain Secret clearance; leading teams preferred.
Xilinx, Microsemi, Cameo, MagicDraw
2mo
Save
Mark Applied
Hide
Senior Quality Development Engineer
Boston, Massachusetts, United States
$92k-$136k/yr OnsiteFull Time
5+ YOE5+ years IT experience; IT degree; HL7 and FHIR experience; REST API automation; SQL and at least one programming language; web development knowledge; SDLC and software testing principles.
HL7, FHIR, REST API, SQL, Programming Languages, Web development technologies
1mo
Save
Mark Applied
Hide
Software Engineer
Westford, Massachusetts, United States
$82k-$156k/yr OnsiteFull Time
0+ YOEBachelor's degree in CS/CE or equivalent, 0-2 years experience, strong programming fundamentals, proficiency with Python, C, C++, Linux, Git, Docker/Kubernetes, and knowledge of OS, networking, AI and container principles.
Python, C, C++, Linux, Git, Docker, Kubernetes
1mo
Save
Mark Applied
Hide
Senior Engineer, Invest Tech
Boston, Massachusetts, United States
$135k-$145k/yr HybridFull Time
3+ YOEBachelor's degree; 3+ years software or data engineering experience; 3+ years Python and SQL; experience with cloud-native (AWS), distributed/event-driven systems, CI/CD, and data engineering principles; financial services experience preferred.
GitHub Copilot, Claude, ChatGPT, AWS Bedrock, Python, PostgreSQL, SQL Server, Snowflake, Kafka, AWS Lambda, Amazon S3, Amazon ECS, Amazon EKS, AWS Step Functions, Amazon Aurora, CI/CD, DevOps
6d
Save
Mark Applied
Hide
Software Engineer II- Device Cloud
Boston, Massachusetts, United States
$94k-$125k/yr HybridFull Time
Experience building cloud-based backend systems, familiarity with at least one major programming language, SOLID principles, cloud experience (AWS/Azure/GCP), and Agile/Scrum familiarity.
C#, JavaScript, TypeScript, Java, C++, Go, Python, AWS, Azure, GCP
1w
Save
Mark Applied
Hide
Staff Software Engineer, Quality Integration
Boston, Massachusetts, United States
$166k-$220k/yr OnsiteFull Time
15+ YOE15+ years building automated verification suites, CI/CD and DevOps expertise, HITL/SITL automation, Python scripting, Terraform, containerization, automated testing, SRE principles, and system-level reliability.
Lattice OS, Jenkins, GitLab CI, GitHub Actions, Python, Terraform, NixOS, Docker, Kubernetes, AWS, Azure, GCP
2w
Save
Mark Applied
Hide
Software Engineer
Lexington, Massachusetts, United States
$135k-$145k/yr OnsiteFull Time
8+ YOEActive Secret clearance required; 6–8+ years software experience depending on degree; proficiency in Java/Python/C++/C#/JavaScript, RESTful APIs, CI/CD and software-development principles.
Java, Python, C++, C#, JavaScript, RESTful APIs, Git, Maven, Gradle, Jenkins, GitLab CI, Linux, Windows, Spring, JEE, SQL, Docker, Kubernetes, OpenShift, JUnit, Mockito, Selenium, Cucumber
1mo
Save
Mark Applied
Hide
Metallurgical Process Engineer
Billerica or Boston
OnsiteFull Time
5+ YOEDegree in materials/metallurgy/engineering or related, 5+ years developing solidification/thermal processes, strong first-principles solidification knowledge, SPC/DOE experience, root-cause analysis, hands-on foundry/process experience, US citizen or permanent resident required.
ProCAST, MAGMASOFT, Flow-3D
1mo
Save
Mark Applied
Hide
Sr. Manufacturing Engineer
Hudson, New Hampshire, United States
OnsiteFull Time
onsemi: Designs and manufactures semiconductor solutions for power and sensing.
5+ YOEB.S.M.E. with 5+ years related experience; 3D CAD/SolidWorks and PDM preferred; knowledge of mechanical design, vacuum principles, MRP systems, and spreadsheets for analysis.
3D CAD, SolidWorks, PDM, MRP, 3D printing
4w
Save
Mark Applied
Hide
Hardware Design Engineer
Nashua, New Hampshire, United States
OnsiteFull Time
BS in Electrical Engineering or Physics, hands-on frequency/time-domain characterization, signal integrity measurement and debugging experience, understanding of electromagnetic principles.
ANSYS HFSS, Designer, CST Microwave Studio, HSPICE, MATLAB, ADS, TDR, VNA
4w
Save
Mark Applied
Hide
Hardware Design Engineer
Nashua, New Hampshire, United States
OnsiteFull Time
2+ YOEBS in Electrical Engineering or Physics required; hands-on frequency/time-domain characterization, signal integrity measurement experience (TDR,VNA), and understanding of electromagnetic principles.
ANSYS HFSS, Designer, CST Microwave Studio, HSPICE, MATLAB, ADS, TDR, VNA, pattern generators, error detectors
1mo
Save
Mark Applied
Hide
Electrical Engineer – Value Engineering
Gloucester, Massachusetts, United States
$87k-$119k/yr OnsiteFull Time
7+ YOEBachelor's in Electrical Engineering, 7+ years electrical engineering experience, expertise in circuit design/PCB/power systems, proven value engineering and supplier collaboration, and application of DfX principles.
1mo
Save
Mark Applied
Hide
Senior Systems Engineer
Hanscom Air Force Base, Massachusetts, United States
$160k-$182k/yr OnsiteFull Time
10+ YOETop Secret clearance required, 10+ years related experience (5+ in DoD), expertise with requirements management (DOORS/Jira), DoD architecture (UAF/DoDAF), MBSE (Cameo/MagicDraw/SysML), verification & validation, and DoD acquisition principles.
DOORS, Jira, UAF, DoDAF, Cameo, MagicDraw, SysML, Microsoft Excel, Microsoft Word, Microsoft PowerPoint, CI/CD, DevSecOps, DevOps, MBSE
2mo
Save
Mark Applied
Hide
Senior Structural Engineer (Buildings)
Boston, Massachusetts, United States
$103k-$135k/yr OnsiteFull Time
5+ YOEBachelor’s in Structural or Civil Engineering; 5–7 years post-education experience; Engineer in Training; proficient in structural principles, RAM Concept/ETABS; design/construction management; strong communication and leadership.
RAM Concept, ETABS
1mo
Save
Mark Applied
Hide
Manufacturing Engineer II, Conformal Coat
Andover or United States
$69k-$131k/yr OnsiteFull Time
2+ YOEBachelor's in STEM with minimum ~2 years relevant manufacturing experience; U.S. citizenship and ability to obtain/maintain DoD security clearance required; knowledge of conformal coating processes, IPC/ANSI standards, and Lean principles preferred.
ANSI J-STD-001, IPC-CC-830, SPC, Lean Manufacturing
2w
Save
Mark Applied
Hide
Engineer II, Process safety
Boston, Massachusetts, United States
$72k-$113k/yr OnsiteFull Time
2+ YOEAssociates degree in a relevant science plus 2+ years industry experience; process safety and pilot-plant experience preferred; familiarity with DSC/ARC/TSU/EasyMax/RC-1, process-safety software, ELN, and FAIR data principles.
DSC, ARC, TSU, EasyMax, RC-1, Electronic Lab Notebook (ELN), AKTS, Aspen Plus, gPROMS
Explore Jobs