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Principal Java Engineer Jobs in Princeton, NJ (NOW HIRING)

Scout ET

.Net Framework Developer

New York, NY

$57.50 - $74/hr

Understanding of agile and lean principals * Strong understanding of SDLC (software development ... Java knowledge a plus Thanks, Mohan Behara mohan(at)scoutet(dot)com 609-888-6753 Qualifications Any ...

PhysicsX

Principal CFD Engineer

New York, NY · On-site

Who We're Looking For As a Principal Simulation Engineer (Delivery), you are a technical leader and ... Experience in parametric CAD modelling (NX or CATIA) and coding in Python/Java, (or the ability to ...

Mastercard, Inc.

Principal Software Engineer

New York, NY · On-site

$147K - $198K/yr

Title and Summary Principal Software Engineer Overview The Builders Hub Team, part of the ... NodeJS, Java, C# and other programming languages Mastercard is a merit-based, inclusive, equal ...

MasterCard

Principal Software Engineer

New York, NY · On-site

$147K - $198K/yr

Title and Summary Principal Software Engineer Overview The Builders Hub Team, part of the ... NodeJS, Java, C# and other programming languages Mastercard is a merit-based, inclusive, equal ...

Wells Fargo

Principal Software Engineer

Iselin, NJ · On-site

$137K - $183K/yr

Wells Fargo is seeking a Principal Software Engineer join the Infrastructure Automation and ... Java, C#, JavaScript) * 7+ years of experience in developing software which utilizes either ...

Schonfeld

Principal Software Engineer

New York, NY · On-site

$147K - $198K/yr

What you'll do Principal Engineers at Schonfeld take on a wide range of responsibilities and ... At minimum, seven years of OO development experience (Java highly preferred) * Expertise with ...

Schonfeld

Principal Software Engineer

New York, NY · On-site

$147K - $198K/yr

What you'll do Principal Engineers at Schonfeld take on a wide range of responsibilities and ... At minimum, seven years of OO development experience (Java highly preferred) * Expertise with ...

Intuit

Principal Software Engineer

New York, NY · On-site

$147K - $198K/yr

Come join Intuit's community of 'Builder catalysts' as a Principal Software Engineer and help us ... Java, Typescript, Spring, Express (NodeJS) * Prior working experience in a cloud computing ...

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Showing results 21-40

All JobsPrincipal Java Engineer JobsPrincipal Java Engineer Jobs in Princeton, NJ

Principal Java Engineer information

See Princeton, NJ salary details

$87K

$156.9K

$211.2K

How much do principal java engineer jobs pay per year?

As of Aug 7, 2026, the average yearly pay for principal java engineer in Princeton, NJ is $156,905.00, according to ZipRecruiter salary data. Most workers in this role earn between $134,700.00 and $173,000.00 per year, depending on experience, location, and employer.

How does a principal Java engineer typically contribute to architectural decisions and cross-team collaboration?

A Principal Java Engineer is often a key decision-maker when it comes to designing and evolving the software architecture. They regularly collaborate with product managers, other engineering teams, and stakeholders to ensure technical solutions align with business goals. In addition to providing technical leadership, Principal Java Engineers mentor junior developers, participate in code reviews, and help resolve complex technical challenges across teams. Their role is highly collaborative and strategic, making them instrumental in guiding project direction and maintaining code quality.

What are the key skills and qualifications needed to thrive as a principal Java engineer?

To thrive as a Principal Java Engineer, you need deep expertise in Java programming, software architecture, and system design, usually backed by a computer science degree and extensive industry experience. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, cloud platforms (AWS, Azure), and relevant certifications (e.g., Oracle Certified Professional Java SE) is often required. Strong leadership, communication, and mentoring abilities are crucial soft skills to guide teams and drive technical excellence. These skills and qualities are vital for delivering robust, scalable solutions and ensuring the success of complex software projects.

What is the difference between Principal Java Engineer vs Senior Java Developer?

AspectPrincipal Java EngineerSenior Java Developer
Required CredentialsBachelor's/Master's in Computer Science, Java certificationsBachelor's in Computer Science, Java certifications
Work EnvironmentLead technical projects, architecture design, cross-team collaborationDevelops features, writes code, fixes bugs
Employer & Industry UsageTech companies, large enterprises, consulting firmsStartups, mid-sized companies, tech teams
Common Search & ComparisonLeadership, architecture, high-level technical expertiseHands-on coding, feature development, troubleshooting

The Principal Java Engineer typically holds a higher-level, strategic role focusing on architecture and leadership, while a Senior Java Developer concentrates on coding and implementing features. Both roles require strong Java skills and relevant certifications, but their responsibilities and scope differ significantly.

What does a principal Java engineer do?

A Principal Java Engineer is a senior-level software engineer responsible for designing, developing, and overseeing complex Java-based applications and systems. They lead technical teams, make high-level architectural decisions, and ensure best practices in coding and software design are followed. Principal Java Engineers mentor junior developers, collaborate with stakeholders to define technical requirements, and play a key role in troubleshooting and optimizing application performance. Their expertise in Java and related technologies is critical for delivering scalable and reliable software solutions.
Principal Java Engineer jobs near you
Infographic showing various Principal Java Engineer job openings in Princeton, NJ as of August 2026, with employment types broken down into 92% Full Time, 2% Part Time, and 6% Contract. Highlights an 87% Physical, 4% Hybrid, and 9% Remote job distribution, with an average salary of $156,905 per year, or $75.4 per hour.

Principal Software Engineer, Tooling (Product)

Gemini

New York, NY • On-site

$147K - $198K/yr

Full-time

Medical, Retirement

Posted 15 days ago

Job description

About the Company
Gemini is a global crypto and Web3 platform founded by Cameron and Tyler Winklevoss in 2014, offering a wide range of simple, reliable, and secure crypto products and services to individuals and institutions in over 70 countries. Our mission is to unlock the next era of financial, creative, and personal freedom by providing trusted access to the decentralized future. We envision a world where crypto reshapes the global financial system, internet, and money to create greater choice, independence, and opportunity for all - bridging traditional finance with the emerging cryptoeconomy in a way that is more open, fair, and secure. As a publicly traded company, Gemini is poised to accelerate this vision with greater scale, reach, and impact.
The Department: Tooling
The Role: Principal Software Engineer (Product)
As a Principal Product Engineer, you'll set technical direction for the customer-facing platform that defines how millions of users experience Gemini - onboarding, compliance, customer support, and the systems that hold the customer journey together. This is a role for an engineer who operates at the level of the technology itself: someone accountable for company-level initiatives, who drives the hardest technical challenges across organizational boundaries, and who creates the architectural vision that other teams build against.
You'll work across backend, web, and mobile, but your leverage comes less from what you build directly than from the direction you set, the leaders you grow, and the frontier you push. We treat AI-assisted development and automation as first-class - an agentic SDLC pipeline where agents plan, implement, and review work through our harness under human gates. As a Principal, you're expected to shape where that frontier goes, define the patterns and operational guidelines other engineers adopt, and advance how the whole organization builds. If you're energized by owning ambiguous, company-critical technical bets and multiplying the engineers around you, we'd love to talk.
This role is required to be in person twice a week at our New York City, NY office.
Responsibilities:
  • Own the technical vision and architecture for the customer-facing platform, designing for scale and reliability with a multi-year horizon and anticipating needs before they arrive.
  • Review critical designs across organizations and drive the designs for projects involving the hardest technical challenges at the company; act as a key driver of demos and technical direction beyond your own team.
  • Be accountable for one or more core company initiatives spanning onboarding, compliance (KYC/identity), and customer support - carrying them from ambiguity through production and long-term operation.
  • Identify strategic direction in technology and product, proposing and adopting architecture and platform approaches that advance it; tie technical bets clearly to company objectives.
  • Plan and deliver large, complex, cross-org programs with interdependencies across teams and systems, spanning months to years; identify the problems worth solving and advocate for their prioritization.
  • Define patterns, operational guidelines, and engineering practices for your vertical(s), and extend process improvements across teams and command pilot units.
  • Provide critical technical guidance proactively - raising the security, reliability, and quality bar across the organization, and debugging or contributing to the most complex parts of a system when needed.
  • Act as a technical multiplier: mentor and develop engineers and future leaders, share knowledge, delegate to grow others, and lead initiatives across domains, including outside your core area of expertise.
  • Drive the organization toward a strategic vision for strong systems, sustainable practice, and healthy engineering culture; play a critical role in recruiting and bar-raising.

Minimum Qualifications:
  • 12+ years of software engineering experience building and operating complex production systems at scale.
  • Recognized expertise in one or two core technical domains, with a track record of being accountable for company-level systems or initiatives end to end.
  • A history of driving architecture and design for the hardest technical challenges across multiple teams or organizations.
  • Demonstrated ability to set technical vision with company-level impact and to bring an increasingly strategic mindset to engineering decisions.
  • Fluency across multiple layers of the stack (backend services plus web and/or mobile) and willingness to go deep wherever a problem requires.
  • Proficiency in a typed language (e.g., TypeScript, Scala, Java, Go) and comfort with JavaScript/TypeScript on web and mobile surfaces.
  • Experience building consumer-facing applications with strong product and UX sensibility.
  • Fluency in using AI coding tools and automation, and a point of view on how to advance an agentic development practice.
  • A record of acting as a technical multiplier - developing engineers and leaders, influencing prioritization across teams, and leading cross-domain initiatives.
  • Excellent communication skills, including the ability to communicate complex technical issues to diverse audiences and build alignment across organizations.

Preferred Qualifications:
  • Experience in the crypto or fintech industry, or as a user of crypto products.
  • Deep experience with onboarding, identity/KYC, compliance, or customer support tooling.
  • Experience architecting and operating AI agents or agentic workflows in production at scale.
  • Familiarity with React/React Native and cloud/microservices architecture.
  • A record of driving product and technical strategy with data and experimentation.
  • Experience representing engineering externally (talks, writing) or in cross-company technical collaboration.

It Pays to Work Here
The compensation & benefits package for this role includes:
  • Competitive starting pay
  • A discretionary annual bonus
  • Long-term incentive in the form of a new hire equity grant
  • Comprehensive health plans
  • 401K with company matching
  • Paid Parental Leave
  • Flexible time off

Salary Range: The base salary range for this role is between $192,500 - $275,000 in the State of New York. This range is not inclusive of our discretionary bonus or equity package. When determining a candidate's compensation, we consider a number of factors including skillset, experience, job scope, and current market data.
In the United States, we offer a hybrid work approach at our hub offices, balancing the benefits of in-person collaboration with the flexibility of remote work. Expectations may vary by location and role, so candidates are encouraged to connect with their recruiter to learn more about the specific policy for the role. Employees who do not live near one of our hubs are part of our remote workforce. All employees, however, are required to onboard in-person at one of our office locations.
At Gemini, we strive to build diverse teams that reflect the people we want to empower through our products, and we are committed to equal employment opportunity regardless of race, color, ancestry, religion, sex, national origin, sexual orientation, age, citizenship, marital status, disability, gender identity, or Veteran status. Equal Opportunity is the Law, and Gemini is proud to be an equal opportunity workplace. If you have a specific need that requires accommodation, please let a member of the People Team know.
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