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37 principle developer jobs at 26 companies in Middletown, NJ

1mo
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Principle Software Engineer (Hybrid)
Wayne or Totowa or New Jersey
$129k-$219k/yr HybridFull Time
BAE Systems
BAE SystemsLondon Stock Exchange: BA: Designs and manufactures advanced defense and aerospace systems.
4+ YOEActive Secret clearance, Bachelor's in CS/CE (or related) with 4+ years experience, embedded/application C++ development, OO design, software testing/verification, and strong problem-solving skills.
C++, Ada, C#, Python, Java, Rust, Green Hills, VxWorks, Microsoft Windows, Linux, Continuous Integration Tools, Artificial Intelligence Tools, DO-178C, Git, GitLab, Jira, Confluence
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2mo
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Principle Software Engineer, AI Observability & Evals Platform
Boston or San Francisco or New York City
$230k-$270k/yr OnsiteFull Time
LangChain
LangChain: Tools for building and deploying production-ready AI agents.
10+ YOE10+ years backend or full-stack engineering; strong Python/Go; TypeScript/React; architectural decisions; reliable, scalable systems; mentoring.
Python, Go, TypeScript, React
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Principal Application Developer, PD Systems
New Brunswick, New Jersey, United States
$159k-$193k/yr OnsiteFull Time
Bristol Myers Squibb
Bristol Myers SquibbNew York Stock Exchange: BMY: Develops and distributes innovative medicines for serious diseases.
Supervise application development, perform test code reviews, design monitoring tools, apply secure coding principles, and recommend lifecycle and agile engineering improvements.
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Lead Developer, Product Development Applications
New Brunswick, New Jersey, United States
$140k-$169k/yr OnsiteFull Time
Bristol Myers Squibb
Bristol Myers SquibbNYSE: BMY: Develops and manufactures innovative prescription biopharmaceutical medicines.
Supervise application development, conduct code reviews, design monitoring tools, apply secure coding principles, collaborate across engineering teams, and improve agile development lifecycle.
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1w
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Java, Angular, React Full stack Lead Software Engineer
Jersey City, New Jersey, United States
$152k-$215k/yr OnsiteFull Time
JPMorgan Chase
JPMorgan ChaseNYSE: JPM: Global financial services firm providing banking and investment solutions.
5+ YOE5+ years software engineering experience delivering system design, application development, testing and operational stability; proficiency in Java, Spring ecosystem, Angular/React, CI/CD, cloud principles, and AI-assisted tooling.
Java, Spring, Spring Boot, Spring Security, Angular, Angular JS, React, Oracle, Cockroachdb, Cassandra, Jenkins, Bitbucket, Terraform, JUnit, Cucumber, VS Code, Copilot, Claude Code, Go, Python, Kerberos, OAuth 2
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3mo
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Software Development Engineer in Test (SDET)
Trenton, New Jersey, United States
$109k-$127k/yr OnsiteFull Time
NJM Insurance Group
NJM Insurance Group: Provides property, casualty, and workers' compensation insurance services.
7+ YOE7+ years software delivery; 5+ years QA; Bachelor's degree; strong QA principles; test automation tools; API testing; multiple languages; Git.
Selenium, Playwright, Cypress, TestNG, JUnit, NUnit, Postman, RestAssured, Git, NeoLoad, JMeter, Docker, Kubernetes
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2w
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Electrical / Electromechanical Product Engineer
Paramus, New Jersey, United States
$100k-$125k/yr OnsiteFull Time
VERSA Products Co., Inc.
VERSA Products Co., Inc.: Manufacturer of pneumatic and hydraulic directional control valves.
3+ YOEB.S. in Electrical Engineering, 3+ years manufacturing experience, hands-on electro-mechanical design, EM principles, strong verbal/written communication.
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1w
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ENGINEER, JR., PRODUCT
Springfield, New Jersey, United States
$75k-$85k/yr OnsiteFull Time
Valcor Engineering
Valcor Engineering: Designs and manufactures fluid and motion control components for critical industries.
Bachelor's in engineering required; internship or manufacturing experience preferred. Basic manufacturing principles, Excel/Word/PowerPoint proficiency, willingness to learn, and exposure to Lean/Six Sigma, CAD, or ERP preferred.
Microsoft Excel, Microsoft Word, Microsoft PowerPoint, CAD, ERP
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6d
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Senior Site Reliability Engineer, Production Engineer - ThousandEyes
San Francisco or Seattle or Austin or New York City
$165k-$241k/yr HybridFull Time
Cisco
CiscoNASDAQ: CSCO: Develops and sells networking hardware and cybersecurity software.
5+ YOE5+ years experience; proficiency in Python or Go; expertise with Kubernetes, cloud (AWS), Unix/Linux; strong SRE principles, incident response, and security-minded engineering.
Python, Go, Kubernetes, Service Mesh, Prometheus, OpenTelemetry, ArgoCD, CNCF, AWS, Unix, Linux
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Staff Optical Engineer
Budd Lake, New Jersey, United States
$115k-$173k/yr OnsiteFull Time
Onto Innovation
Onto InnovationNYSE: ONTO: Provides metrology and inspection solutions for semiconductor manufacturers.
Master's in optical/physics/EE or related, hands-on optical lab experience, knowledge of optical principles and metrology techniques, familiarity with optical design/simulation tools, and data analysis skills (MATLAB/Python/Excel).
Zemax, Code V, COMSOL, MATLAB, Python, Microsoft Excel
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5d
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Staff Engineer - Highway/Traffic
Wall Township, New Jersey, United States
$70k-$77k/yr OnsiteFull Time
French & Parrello Associates
French & Parrello Associates: Provides multidisciplinary engineering design and environmental consulting services.
0+ YOEBachelor's in civil engineering, EIT or ability to obtain within one year, 0–2 years experience, knowledge of roadway/traffic principles, familiarity with NJDOT/AASHTO/MUTCD, strong communication skills.
AutoCAD Civil 3D, MicroStation, Synchro, HCS
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3w
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Intermediate Substation Structural Engineer
Freeport or Hallowell or New York or Syracuse or Ann Arbor or New Albany
$74k-$127k/yr OnsiteFull Time
WSP
WSPToronto Stock Exchange: WSP: Provides engineering, design, and environmental consultancy services globally.
1+ YOEBachelor's in structural or civil engineering,1+ years relevant experience,knowledge of structural engineering principles,codes,and discipline-specific design software;strong communication and analytical skills.
MicroStation, AutoCAD, Civil 3D, ArcGIS, InRoads, Geopak, GeoSlope, ANSYS, STADD, HEC-RAS, HEC-HMS
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2w
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Returning New Grad Engineer I - Winter/Summer 2027 - Northeast Division (For Current/Former HNTB Interns Only)
New York or South Portland or Princeton or Bedford or Boston or Newark or Cherry Hill or Parsippany or South Norwalk or Rocky Hill or Chelmsford
$66k-$125k/yr OnsiteFull Time
HNTB
HNTB: Infrastructure design and engineering for transportation and public works
Bachelor's degree in Engineering required; knowledge of engineering principles; familiarity with Microsoft Office, MicroStation and/or AutoCAD; EIT preferred; master's preferred.
Microsoft Office, MicroStation, AutoCAD
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2w
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Returning New Grad Engineer I - Winter/Summer 2027 - Northeast Division (For Current/Former HNTB Interns Only)
New York or South Portland or Princeton or Bedford or Boston or Newark or Cherry Hill or Parsippany or South Norwalk or Rocky Hill or Chelmsford
$66k-$125k/yr OnsiteFull Time
HNTB
HNTB: Designs and manages large-scale transportation and infrastructure projects.
Bachelor's degree in Engineering required; understanding of engineering principles; familiarity with Microsoft Office, MicroStation and/or AutoCAD; EIT preferred; Master's preferred.
Microsoft Office Suite, MicroStation, AutoCAD
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1mo
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Field Engineer Sr. - United Kingdom (EXPAT)
Barrow-in-Furness or Cape Canaveral or Groton or Kings Bay or Silverdale or Uniondale or Connecticut or Florida or Georgia or New York or Washington or United Kingdom
$89k-$178k/yr OnsiteFull Time
Lockheed Martin
Lockheed MartinNYSE: LMT: Designs and manufactures global security and aerospace systems.
Active DoD Secret clearance (or higher) prior to start with ability to obtain Top Secret, willing to expatriate to the UK for 3+ years, experience with navigation/inertial principles, ability to climb ladders and work in confined spaces, Trident/FBM/SSBN experience preferred.
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1mo
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Principal Engineer, Digital Workplace Technology Engineering
New York or New Jersey or Los Angeles or United States
$180k-$210k/yr RemoteFull Time
NBCUniversal
NBCUniversalNASDAQ: CMCSA: Produces and distributes entertainment content and theme park experiences.
12+ YOE12+ years in enterprise/platform engineering; deep expertise in Microsoft 365, endpoint management (Intune, JAMF, SCCM), Azure, enterprise AI (Copilot, Power Platform), architecture, SRE principles, and large-scale platform transformations.
Microsoft 365, Microsoft Teams, Microsoft SharePoint, Microsoft OneDrive, Microsoft Exchange Online, Microsoft Entra ID, Microsoft Purview, Microsoft Defender, Microsoft Intune, JAMF, Microsoft SCCM, Microsoft Copilot, Copilot Studio, Microsoft Power Platform, Microsoft Power Apps, Microsoft Power Automate, Microsoft Azure, MLOps, DevOps
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1mo
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Senior AI Security Engineer (UT, US, 84043)
Lehi or Princeton or Houston
HybridFull Time
NRG Energy
NRG EnergyNYSE: NRG: Generates and sells electricity while providing smart home solutions.
2+ YOEHands-on experience with AI systems, APIs, data pipelines, dashboards, scripting (Python/JavaScript/PowerShell), cloud platforms (Azure/AWS/GCP), and foundational cybersecurity principles; bachelor's degree or equivalent and 2+ years technical experience.
APIs, REST, Power BI, Tableau, Python, JavaScript, PowerShell, Azure, AWS, GCP, NIST CSF, OWASP
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2mo
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Associate or Senior Associate, Fixed Assets / Cost Segregation Engineer (AMCS)
Boston or New York City or Philadelphia or Pittsburgh
OnsiteFull Time
KPMG
KPMG: Global professional services network providing audit, tax, and advisory.
1+ YOEBachelor's in engineering/architecture/construction management,1+ year experience (2+ preferred for Senior),knowledge of construction/building systems,familiarity with federal depreciation principles,advanced Excel and data tools.
Microsoft Excel, Power Query, Alteryx, Power BI, Tableau, SQL, Python, R
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Strategy and Business Development Team Member
San Francisco or New York City or Denver or Austin or Calgary or Toronto or United States
$119k-$138k/yr RemoteFull Time
Intersect
IntersectNASDAQ: GOOGL: Develops-located data centers and renewable energy infrastructure.
Bachelor's in a quantitative field preferred; experience developing first-principles engineering/techno-economic models; proficiency in Python or similar; strong analytical and communication skills.
Python, Julia, MATLAB, R
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2w
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Senior Principal Software Architect - Healthcare
United States or New York City
$205k-$220k/yr HybridFull Time
Progyny
ProgynyNASDAQ: PGNY: Provides fertility and family building benefit solutions for employers.
Hands-on architect with deep cross-domain knowledge, technical leadership, roadmap development, and ability to drive adoption of architecture principles and standards.
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