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Senior Java Backend Developer Jobs in Oaklyn, NJ

RIT Solutions, Inc.

API/Backend Engineer

Malvern, PA · On-site

... DevOps model. • Contribute to the ongoing modernization of legacy components across various ... Required : • Expert proficiency in Java and Spring Boot for API development. • Extensive, hands ...

RIT Solutions, Inc.

API Backend Engineer

Malvern, PA · On-site

... DevOps model. • Contribute to the ongoing modernization of legacy components across various ... Required : • Expert proficiency in Java and Spring Boot for API development. • Extensive, hands ...

Collabera

Java Developer

Philadelphia, PA · On-site

$51.50 - $66.50/hr

Backend technology experience should include Java Enterprise Edition, Enterprise Java Beans 3.0, JPA, and JMS as well as Database experience with Oracle and MySQL. Qualifications * Strong debugging ...

Motion Recruitment

Senior Core Java Engineer

Philadelphia, PA · Hybrid

$126K - $166K/yr

... of Senior level Engineers who are available for a hybrid setup in University City, Philadelphia. This would be full-time employment. You'll be working with a combination of Core Java, C++, AI tools ...

Quantix, Inc.

Java Engineer

Philadelphia, PA · On-site

$49.50 - $67.75/hr

They are seeking a Java Engineer to join a team responsible for developing applications utilized internationally, focusing on full lifecycle development and backend development. Responsibilities ...

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Senior Java Backend Developer information

See Oaklyn, NJ salary details

$64.8K

$141.6K

$192.9K

How much do senior java backend developer jobs pay per year?

As of Sep 8, 2026, the average yearly pay for senior java backend developer in Oaklyn, NJ is $141,620.00, according to ZipRecruiter salary data. Most workers in this role earn between $122,000.00 and $158,500.00 per year, depending on experience, location, and employer.

What is a senior Java backend developer?

A Senior Java Backend Developer is responsible for designing, implementing, and maintaining the server-side logic of applications using Java. They work with databases, APIs, and cloud services to ensure high performance and scalability. Additionally, they collaborate with front-end developers, DevOps teams, and business stakeholders to deliver robust and secure solutions. Seniors are expected to mentor junior developers and contribute to architectural decisions and best practices.

What are the typical daily responsibilities of a senior Java backend developer?

Senior Java Backend Developers usually spend their days designing and implementing backend components, reviewing code, and optimizing system performance. You may take part in architecture discussions, mentor junior developers, and troubleshoot complex technical issues. Collaboration with front-end developers, QA testers, and project managers is frequent to ensure seamless integration and successful product delivery. Additionally, you might be responsible for maintaining system documentation and keeping up-to-date with new technologies relevant to backend development. Overall, the role combines hands-on coding with leadership and cross-functional teamwork.

What are the key skills and qualifications needed to thrive in the senior Java backend developer position, and why are they important?

To thrive as a Senior Java Backend Developer, you need deep knowledge of Java, object-oriented design, RESTful APIs, and database systems, typically backed by a degree in computer science or related field and several years of relevant experience. Expertise in frameworks like Spring, ORM tools such as Hibernate, version control systems like Git, and, often, certifications such as Oracle Certified Professional Java Programmer are valued. Strong problem-solving, leadership, and clear communication skills help in mentoring junior developers and collaborating across teams. These competencies ensure robust, scalable backend solutions and effective team coordination in complex software projects.

What job categories do people searching Senior Java Backend Developer jobs in Oaklyn, NJ look for?

The top searched job categories for Senior Java Backend Developer jobs in Oaklyn, NJ are:

What cities near Oaklyn, NJ are hiring for Senior Java Backend Developer jobs?

Cities near Oaklyn, NJ with the most Senior Java Backend Developer job openings:

Senior Java Backend Developer jobs near you

Senior Software Engineer, Backend

Philadelphia, PA • On-site

Perpay - Career's Page
See more jobs at Perpay - Career's Pageexternal

$160K/yr

Full-time

Medical, Retirement, PTO

Re-posted 19 days ago

Job description

About Us:
Perpay is a certified B Corp and Philadelphia's most impactful growth-stage startup. We are driven by a mission to significantly improve the financial stability of everyday Americans. For the past decade, we have established strong product-market fit and a profitable, efficient operating model across a suite of products, positioning Perpay as the premier financial partner for consumers with subprime credit.
With over 500,000 customers who have utilized more than $1 billion in spending power, we are at a pivotal moment. We are scaling our operations, building new offerings, and deepening our impact. We are looking for teammates eager to join us on this journey.
Our venture partners include First Round Capital and L Catterton.
Products we've built to make an impact:
  • Perpay Marketplace: Combines interest-free payments and modern e-commerce to reduce cost of ownership and promote healthy repayment behavior.
  • Perpay+: Leverages Marketplace repayment history to help members monitor and build credit with all 3 credit bureaus.
  • Perpay Credit Card: Expands access to the flexibility and benefits of a World Mastercard by removing common barriers like high security deposits and low approval odds.

Our team thrives on in-person collaboration, operating from our unique center-city Philadelphia office. This comfortable "home away from home" space offers river views and fosters rapid product development, strong relationships, and career growth. The energy from achieving big wins is palpable here. While we primarily work in the office, we offer sensible flexibility for personal needs, such as sick children or urgent errands, and coordinate official remote weeks around major holidays. If you are passionate about a meaningful mission, collaboration, equity, and generous perks, Perpay is the best place to be in Philadelphia right now.
About the Role:
We are looking for senior backend engineers passionate about backend technology, excellent user experience and system reliability. The ideal candidate has helped lead the technical design and implementation of backend features on at least one sizable production application within the past year. A senior backend engineer at Perpay will spend their time writing code, reviewing PRs, mentoring engineers, and helping scope & design new features. We are looking for people who can bring backend technical expertise to push our technology forward - whether it's hosting a lunch-and-learn on a new backend technology or directing a large refactor. We value engineers who demonstrate excitement around solving tough problems and delivering solutions in a fast-paced environment.
Much of our team is fullstack, so we look for team members excited to learn new technologies and work across all stacks, even if it's not something you've done before! Our tech stack: Javascript, React, React Native, Redux, Python, Django, Flask, Kubernetes, AWS, Docker and more.
Our greatest strength is our people and we'd love for you to be one of them!
Responsibilities:
  • Design and evolve RESTful APIs used by our frontend and internal systems
  • Own data modeling decisions across our relational databases with an eye toward performance and maintainability
  • Improve reliability, observability, and operational excellence of our backend systems (metrics, logging, tracing, alerting)
  • Participate in architectural decisions around service boundaries, asynchronous workflows, and distributed system tradeoffs
  • Diagnose and resolve production issues across multiple services
  • Contribute to infrastructure-as-code and CI/CD improvements to increase developer velocity and system stability
  • Partner with product and stakeholders to translate complex business rules into maintainable backend systems
What You'll Bring
  • 5+ years of experience building web applications at scale in at least one modern language / framework (e.g. Python/Django, Rails, etc.)
  • 2+ years of experience leading technical teams and large, complex projects
  • Deep understanding of relational databases (e.g., Postgres), query optimization, indexing strategies, and schema evolution
  • Experience operating production systems in a large cloud provider (e.g. AWS)Familiarity with containerized environments (Docker) and orchestration systems (Kubernetes)
  • Experience with background job systems and message queues (e.g. Celery)
  • Working knowledge of caching strategies (e.g. Redis)
  • Experience with monitoring/observability tooling (e.g. Datadog, CloudWatch)
  • Strong understanding of system reliability, failure modes, and operational tradeoffs
  • Ability to communicate complex system behavior clearly to non-technical stakeholders
  • A solutions-oriented mindset, willing to step outside your primary domain to unblock teammates and ensure successful delivery

NYC-level total cash-comp (base $160k into the $200's, plus equity and a discretionary cash bonus)
We know not everybody checks all the boxes, so if you're interested, please apply because you could be just what we're looking for!
What We'll Bring to Full-time Team Members:
  • Meaningful compensation and equity
  • Premium medical benefits (fully paid base plan, and very reasonable premium for the buy-up option)
  • 5% employer 401k match
  • Unlimited PTO policy
  • Remote weeks around major holidays + extra holiday on weekends like MDW and LDW
  • High quality catered lunch by local chefs, 4 days / week
  • Gym subsidy
  • Paid cell phone + plan
  • Student loan repayment match program
  • Family savings match program
  • Relocation assistance
  • Generous team member discounts

This is not a remote opportunity; it is 100% onsite (#LI-Onsite) (#LI-TH1) (#LI-AK1)
Perpay is proud to be an equal opportunity employer. We value diversity in all its forms and are committed to creating an inclusive environment. We do not discriminate on the basis of race, religion, color, national origin, gender identity, sexual orientation, sex (including pregnancy), marital status, political affiliation, age, veteran status, disability status or other non-merit factor. Please contact us at careers@perpay.com to request accommodation.

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