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Freelance Java Backend Developer Jobs in Maryland

Apolis

Java Backend Developer

Fort Washington, MD · Hybrid

$50.25 - $65.25/hr

Title- Java Developer (backend) Location - Oxon Hill, MD (National Harbor)- Hybrid (3 days on site and 2 Days Remote) Contract - Contract to Perm Hire IV Process- 1 Step Video interview (Panel style)

Quevera LLC

Back End Developer (HYBRID)

Annapolis, MD · Hybrid

Develop RESTful APIs and backend components using Python, Java, and C++. * Design and implement ... Collaborate with software engineers, system engineers, and stakeholders throughout the software ...

Alpha Consulting Corp.

Lead Java FSD

Owings Mills, MD · On-site

The role requires extensive experience in Java programming and involves designing, developing, and supporting Java backend solutions while mentoring a team of developers. Responsibilities : • 10+ ...

Scalence L.L.C.

Lead Java FSD

Owings Mills, MD · On-site

The role involves designing, developing, and supporting Java backend solutions while leading a team of developers and ensuring application quality through various testing and debugging techniques.

Exequt

Back-End Java Developer

Baltimore, MD · Hybrid

$119K - $155K/yr

Role Summary ExeQut is hiring a Backend Java Developer to join our Maryland-based team in a hybrid capacity. You will design and develop robust backend systems serving U.S. enterprise clients ...

Waypoint Human Capital

$56.75 - $78/hr

This role focuses on backend development, with an emphasis on Java-based applications ... Experience with CI/CD pipelines and DevOps practices. * Experience working with NoSQL and ...

Maximus

Senior Back End Developer

Fort George G Meade, MD · On-site

$133K - $173K/yr

General information Job Posting Title Senior Back End Developer Date Friday, May 1, 2026 City Fort ... Python - Luna - Java - Docker - OpenJDK - Ansible - Packer - Maven - Kubernetes - Red Hat ...

Mindgrub

Senior Java API Engineer (contract)

Baltimore, MD · Remote

$80 - $90/hr

Position Overview We are seeking a Senior Java API Engineer to support and enhance a REST-based API ... This role focuses on maintaining and improving backend services built using Java and the Micronaut ...

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Java Backend Developer

Java Backend Developer

Apolis

Fort Washington, MD • Hybrid

$50.25 - $65.25/hr

Other

This job post has expired today. Applications are no longer accepted.

Job description

Title- Java Developer (backend)
Location- Oxon Hill, MD (National Harbor)- Hybrid (3 days on site and 2 Days Remote)
Contract- Contract to Perm Hire
IV Process- 1 Step Video interview (Panel style)
*Clearance: Must be eligible to obtain and maintain a Client Public Trust
Must Haves from Manager:
  • Backend-focused developer role supporting legacy Java applications.
  • The environment is expected to be centered around legacy Java technologies (Struts-based applications), with a focus on maintaining and supporting existing systems rather than building new applications from scratch.
  • Responsible for troubleshooting and resolving backend application issues i.e. business logic, APIs, integrations, and system processing layers.
  • Collaborating with broader engineering teams to support application stability and performance
  • Needs some database knowledge and ability to build and troubleshoot SQL queries, triggers, stored procedures.
  • Bachelors & 10 years or if have No Degree they need 16 years of experience.

Role Overview
Java Developer to support and develop solutions for a key government program with FEMA. The developer will be responsible for configuration management and updating design and architecture documentation. This role involves designing, developing, maintaining, and supporting enterprise applications using Java, Struts, and Webapp technologies.
Key Responsibilities
  • Develop, enhance, and maintain applications using Java.
  • Analyze business requirements and translate them into technical solutions.
  • Design and optimize SQL queries, stored procedures, and database structures.
  • Troubleshoot application issues, bugs, and performance bottlenecks.
  • Integrate applications with APIs, web services, and third-party systems.
  • Perform unit testing, system testing, and support for user acceptance testing (UAT).
  • Collaborate with cross-functional teams to ensure timely project delivery.
  • Maintain documentation, coding standards, and deployment procedures.
  • Support production environments and provide ongoing maintenance.
Education & Experience:
  • Bachelor’s degree and 10+ years of experience developing applications (additional years experience may be substituted in lieu of a degree)
Technical Skills:
  • Knowledge of SQL and relational databases such as Microsoft SQL Server and Oracle Database.
  • Experience with object-oriented programming concepts.
  • Familiarity with source control tools such as Git.
  • Knowledge of REST/SOAP APIs and application integration.
  • Strong debugging, analytical, and problem-solving skills.
Communication Skills: Good verbal and written communication skills are required.
Preferred Qualifications
  • Experience migrating legacy Java/Struts/webapp applications to modern platforms.
  • Familiarity with Agile/Scrum methodologies.
  • Experience in government domains.
  • Exposure to Powerbuilder is a plus.
  • Knowledge of CI/CD pipelines.
  • Cloud deployment exposure.

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