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Freelance Java Backend Developer Jobs in Wilmington, DE

Mondo

Sr. Backend Engineer

Media, PA · Remote

$90 - $105/hr

Senior Backend Software Engineer (Java/Go), Hybrid - Onsite 4 Days/Week. Start date is ASAP for this Contract position. Job Title: Senior Backend Software Engineer (Java/Go) Location-Type: Hybrid ...

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 ...

Prophecy Technologies

Java Developer

Wilmington, DE · On-site

$49.50 - $64/hr

Job Summary JPMorgan Chase is seeking an experienced Java Full Stack Developer with strong ... Create Python scripts and applications for automation, data processing, and backend services.

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 ...

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 ...

IntraEdge

Senior Java Engineer

Middletown, DE · On-site

$54 - $68.75/hr

Design, develop, and maintain scalable Java-based backend applications and microservices. * Build ... Collaborate with product owners, architects, QA, and DevOps teams to deliver high-quality software ...

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 ...

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See Wilmington, DE salary details

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$71

How much do freelance java backend developer jobs pay per hour?

As of Aug 12, 2026, the average hourly pay for freelance java backend developer in Wilmington, DE is $53.01, according to ZipRecruiter salary data. Most workers in this role earn between $47.12 and $61.11 per hour, depending on experience, location, and employer.
What are the most commonly searched types of Java Backend Developer jobs in Wilmington, DE? The most popular types of Java Backend Developer jobs in Wilmington, DE are:
What cities near Wilmington, DE are hiring for Freelance Java Backend Developer jobs? Cities near Wilmington, DE with the most Freelance Java Backend Developer job openings:
Freelance Java Backend Developer jobs near you

Sr. Backend Engineer

Mondo

Media, PA • Remote

$90 - $105/hr

Contractor

Medical, Dental, Vision, Retirement

Re-posted 18 days ago

Job description

Apply now: Senior Backend Software Engineer (Java/Go), Hybrid - Onsite 4 Days/Week. Start date is ASAP for this Contract position. Job Title: Senior Backend Software Engineer (Java/Go) Location-Type: Hybrid - Onsite 4 Days/Week, Remote Fridays - Philadelphia, PA Start Date: ASAP Duration: Until end of 2026 Compensation Range: $90-105/hr W2 Benefits: Eligible for Health, Dental, Vision, and 401K Visa Sponsorship: Not eligible for visa sponsorship Job Description: The client is seeking a Senior Backend Software Engineer to design, develop, and maintain scalable backend microservices and event-driven systems that power critical product functionality across the organization. Job Summary Design, develop, and maintain backend microservices using Java/Spring Boot and Go Build and support high-performance RESTful APIs and distributed services Develop and maintain event-driven architectures utilizing Kafka and similar messaging platforms Work within containerized, cloud-native environments using Docker and Kubernetes Collaborate across engineering teams while maintaining ownership of assigned workstreams Leverage AI-powered development tools such as GitHub Copilot and Claude to accelerate delivery Troubleshoot complex production issues and drive resolution through root cause analysis Minimum Requirements: 7 years of backend software engineering experience Strong hands-on experience with Java, Spring Boot, and Go (Golang) Proven experience designing and building RESTful APIs and distributed systems Experience with Kafka or comparable event-driven messaging platforms (JMS, RabbitMQ) Strong experience with Docker and Kubernetes in cloud-native environments Experience with one or more of the following databases: PostgreSQL, MongoDB, or Couchbase Demonstrated ability to independently ramp on complex systems and deliver results with minimal oversight Preferred Qualifications: Experience with performance and load testing tools such as K6 Experience implementing BDD frameworks, including Cucumber Familiarity with Istio, AWS EKS, or AWS MSK Background in startup or smaller-company environments where engineers owned multiple responsibilities Exposure to service mesh architectures and operating large-scale cloud-native applications