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Freelance Java Back End Developer Jobs in Philadelphia, PA

AllSTEM Connections

Java Developer Contractor

Malvern, PA · On-site

$93.60K - $104K/yr

Job Title: Senior Full-Stack Java Developer - Contract Role Overview We are seeking a highly ... Moving seamlessly between backend system architecture and modern front-end design, you will ...

New

Comcast

Sr. Backend Engineer - Xumo

Philadelphia, PA · Remote

As a Senior Backend Engineer on the Xumo Software Engineering Team, you will play a key role in ... Java Application Development for Video Streaming Backend Systems * Develop backend systems for ...

Forhyre

Consultant NodeJs with AWS (cloud)

Philadelphia, PA

$51.75 - $66.75/hr

The ideal candidate will have a minimum of 8 years of professional experience as an UI Developer and experience in Java Backend +Node JS +AWS or Fullstack + Node JS + AWS kind of profiles. As a ...

CEI

Lead Full Stack Java Developer

Philadelphia, PA · Hybrid

$70/hr

Role : Lead Full Stack Java Developer Location : Philadelphia, PA Rate : $70/hour W2 Schedule ... This role requires a strong full stack engineer who can work across frontend, backend, and cloud ...

vTech Solution

Java Developer

Trenton, NJ · On-site

$51.25 - $66.25/hr

Java Developer (Full Stack) Location: Trenton, NJ (Hybrid/Onsite as required) Duration: 08 months ... Develop backend services and APIs using Spring Framework * Write and optimize SQL queries, stored ...

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Freelance Java Back End Developer information

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$10

$55

$73

How much do freelance java back end developer jobs pay per hour?

As of May 29, 2026, the average hourly pay for freelance java back end developer in Philadelphia, PA is $55.13, according to ZipRecruiter salary data. Most workers in this role earn between $48.99 and $63.56 per hour, depending on experience, location, and employer.

What are the key skills and qualifications needed to thrive as a Freelance Java Back End Developer, and why are they important?

To thrive as a Freelance Java Back End Developer, you need strong proficiency in Java, object-oriented programming, RESTful API design, and experience with frameworks like Spring or Hibernate, typically supported by a relevant degree or proven project portfolio. Familiarity with version control systems (such as Git), build tools (like Maven or Gradle), cloud platforms, and continuous integration/continuous deployment (CI/CD) pipelines is highly valued. Outstanding problem-solving abilities, self-motivation, and effective client communication set top freelancers apart. These skills ensure you can deliver robust, maintainable solutions independently and build lasting client relationships.

What are some common challenges faced by Freelance Java Back End Developers when working with multiple clients simultaneously?

Freelance Java Back End Developers often juggle several projects at once, which can present challenges in time management, prioritizing tasks, and aligning with different client expectations. Each client may use distinct tech stacks, communication tools, and development processes, requiring adaptability and strong organizational skills. Clear communication, setting realistic deadlines, and using project management tools can help freelancers maintain quality and meet deliverables across diverse projects.

What does a Freelance Java Back End Developer do?

A Freelance Java Back End Developer is a software professional who specializes in building and maintaining the server-side logic of web applications using the Java programming language. They work independently on a contract basis for various clients, handling tasks such as developing APIs, managing databases, and ensuring the performance and security of the application’s back end. Their responsibilities often include collaborating with front-end developers, integrating third-party services, and troubleshooting server-side issues. Freelancers in this role can work remotely or onsite, offering flexibility to both clients and developers.

What is the difference between Freelance Java Back End Developer vs Freelance Java Software Engineer?

AspectFreelance Java Back End DeveloperFreelance Java Software Engineer
CredentialsJava certifications, experience in backend frameworksJava certifications, broader software development skills
Work EnvironmentRemote, project-based, client-specificRemote or on-site, project or product-focused
Industry UsagePrimarily in backend development projectsInvolved in full software development lifecycle
Search & Comparison IntentFocus on backend Java skillsBroader software development expertise

While both roles involve Java skills, a Freelance Java Back End Developer specializes in server-side development, focusing on backend systems. A Freelance Java Software Engineer may have a broader scope, including full-stack or application development, often requiring additional skills beyond backend work.

What are the most commonly searched types of Java Back End Developer jobs in Philadelphia, PA? The most popular types of Java Back End Developer jobs in Philadelphia, PA are:
What are popular job titles related to Freelance Java Back End Developer jobs in Philadelphia, PA? For Freelance Java Back End Developer jobs in Philadelphia, PA, the most frequently searched job titles are:
What job categories do people searching Freelance Java Back End Developer jobs in Philadelphia, PA look for? The top searched job categories for Freelance Java Back End Developer jobs in Philadelphia, PA are:
Freelance Java Back End Developer jobs near you
Infographic showing various Freelance Java Back End Developer job openings in Philadelphia, PA as of May 2026, with employment types broken down into 57% Full Time, and 43% Contract. Highlights an 79% In-person, and 21% Remote job distribution, with an average salary of $114,664 per year, or $55.1 per hour.
Java Developer Contractor

Java Developer Contractor

AllSTEM Connections

Malvern, PA • On-site

$93.60K - $104K/yr

Temporary

Medical, Dental, Vision, Retirement

Posted 2 days ago

Job description

Job Title: Senior Full-Stack Java Developer - Contract
Role Overview
We are seeking a highly accomplished and technically secure Senior Full-Stack Java Developer to join an enterprise project team on a contract basis. In this senior individual contributor seat, you will take operational ownership of designing, engineering, and maintaining scalable, high-performance web applications.
Moving seamlessly between backend system architecture and modern front-end design, you will collaborate with cross-functional stakeholders to translate complex business logic into efficient technical specifications. The ideal contractor possesses a deep technical toolkit across cloud environments, writes pristine, modular code, and brings a proven history of technical leadership to maintain absolute application performance and reliability.
Key Responsibilities
Backend Engineering & Cloud Architecture
• Scalable Application Design: Architect, build, and sustain advanced, high-availability backend microservices and application layers utilizing Advanced Java frameworks.
• Cloud Infrastructure: Leverage Amazon Web Services (AWS) to deploy, configure, and optimize cloud-native application components, ensuring code is tailored for distributed cloud environments.
• Modular Code Delivery: Write clean, highly efficient, well-documented, and reusable code components following strict object-oriented design patterns and enterprise best practices.
Front-End Integration & Full-Stack Synergy
• Responsive UI Development: Design and engineer complex, single-page client interfaces using Advanced Angular, ensuring robust cross-platform responsiveness and seamless backend API integration.
• Full-Stack Bridging: Own technical outcomes end-to-end, connecting scalable database structures and RESTful APIs directly to client-facing web components.
Technical Leadership & Quality Governance
• Requirement Translation: Analyze complex user requirements and translate them into functional, maintainable, and highly secure technical solutions.
• Code Quality Assurance: Champion high code quality by conducting comprehensive unit testing, system debugging, and active participation in peer code review loops.
• System Optimization: Stay continuously updated on evolving Java and cloud methodologies, proactively recommending and implementing system performance improvements.
• Project Mentorship: Provide technical direction, architectural guidance, and process oversight to project team members, drawing on prior technical leadership experience to keep development velocities aligned with milestones.
Qualifications & Requirements
Minimum Qualifications
• Experience Baseline: Minimum of 6 to 9 years of professional experience in enterprise-grade Java development.
• Leadership Depth: Minimum of 1 to 2 years of experience serving explicitly in a technical lead or project lead capacity.
• Advanced Hard Filters (6-9 Years of Verifiable Depth Required for Each):
oAdvanced Java Mastery: Expert-level capability designing, debugging, and scaling core Java application frameworks.
oAdvanced Angular Fluency: Proven hands-on track record building complex front-end modules, managing application state, and driving user-experience optimizations.
oAdvanced AWS Core: Solid working knowledge of cloud-native computing, storage, deployment automation, and routing within the Amazon Web Services ecosystem.
• Competencies: Exceptional written and verbal communication habits, strong analytical problem-solving skills, and a proven history of operating successfully within fast-paced, collaborative project teams.
Preferred Qualifications
• Prior professional development experience or domain knowledge within the Investment, Wealth Management, Retirement Services, or broader FinTech industries is highly preferred.
Equal Opportunity Employer / Disabled / Protected Veterans
The Know Your Rights poster is available here:
https://www.eeoc.gov/sites/default/files/2023-06/22-088_EEOC_KnowYourRights6.12.pdf
The pay transparency policy is available here:
https://www.dol.gov/sites/dolgov/files/ofccp/pdf/pay-transp_%20English_formattedESQA508c.pdf
For temporary assignments lasting 13 weeks or longer, AllSTEM Connections is pleased to offer major medical, dental, vision, 401k and any statutory sick pay where required.
We are committed to working with and providing reasonable accommodations to individuals with disabilities. If you need a reasonable accommodation for any part of the employment process, please contact your staffing representative who will reach out to our HR team.
AllSTEM Connections participates in the E-Verify program in certain locations as required by law. Learn more about the E-Verify program.
https://e-verify.uscis.gov/web/media/resourcesContents/E-Verify_Participation_Poster_ES.pdf
We also consider for employment qualified applicants regardless of criminal histories, consistent with legal requirements, including, if applicable, the City of Los Angeles' Fair Chance Initiative for Hiring Ordinance. Pursuant to applicable state and municipal Fair Chance Laws and Ordinances, we will consider for employment-qualified applicants with arrest and conviction records, including, if applicable, the San Francisco Fair Chance Ordinance. For Los Angeles, CA applicants: Qualified applications with arrest or conviction records will be considered for employment in accordance with the Los Angeles County Fair Chance Ordinance for Employers and the California Fair Chance Act.
Additional Skills
(none specified)
AllSTEM Representative Contact Info
Account Executive:
Nichols
Branch Phone:
(909) 244-1777
Location:
Ontario, CA

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