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Senior Java Developer Jobs in Frederick, MD (NOW HIRING)

Eliassen Group

DevOps Software Engineer

Rockville, MD · On-site

$53.75 - $73.75/hr

Java concepts that a candidate should be familiar with and have experience with: APIs (testing an ... Experience: min 4+ years, does not have to be most senior. * Bachelor's degree in a technical field ...

Eliassen Group

DevOps Software Engineer

Rockville, MD

$53.75 - $73.75/hr

Java concepts that a candidate should be familiar with and have experience with: APIs (testing an ... Experience: min 4+ years, does not have to be most senior. * Bachelor's degree in a technical field ...

Eliassen Group

DevOps Software Engineer

Rockville, MD

$53.75 - $73.75/hr

Java concepts that a candidate should be familiar with and have experience with: APIs (testing an ... Experience: min 4+ years, does not have to be most senior. * Bachelor's degree in a technical field ...

VIS IT Solutions Inc

Android developer

Dulles, VA · Remote

$57 - $75/hr

... senior management when deciding how best to deliver software solutions to satisfy business ... Kotlin DSL, Java, Bash/Shell Scripting, HTML. - Android architecture and Android Studio/IDE ...

Leidos

Sr. Software Developer

Gaithersburg, MD · On-site

$59 - $77.75/hr

As a Senior Software Developer, you'll do more than write exceptional code, you'll help build ... Java * C# * Python * C++ * Experience developing web-based applications and enterprise software ...

Leidos LLC

Sr. Software Developer

Gaithersburg, MD · On-site

$150 - $200/hr

As a Senior Software Developer, you'll do more than write exceptional code, you'll help build ... Java C# Python C++. * Experience developing web-based applications and enterprise software ...

Koitecc Solutions

Sr. Software Developer

Gaithersburg, MD · On-site

$150 - $200/hr

As a Senior Software Developer, you'll do more than write exceptional code, you'll help build ... Java * C# * Python * C++ * Experience developing web‑based applications and enterprise software ...

Leidos

Senior Software Developer

Gaithersburg, MD · On-site

$107K - $195K/yr

Leidos is seeking Senior Software Developers to join the Air Traffic Business Area within the ... Expert knowledge of Java with substantial hands-on programming experience * Extensive experience ...

Leidos

Senior Software Developer

Gaithersburg, MD

$107K - $195K/yr

Leidos is seeking Senior Software Developers to join the Air Traffic Business Area within the ... Expert knowledge of Java with substantial hands-on programming experience * Extensive experience ...

Collabera

Surveillance Developer

Rockville, MD · On-site

... SR. Level Surveillance Developer Hive experience will eventually be a must so should have ... Java/Shell/Python/Perl If only experience on Windows not good must have utilized Unix/Linux or ...

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Senior Java Developer information

See Frederick, MD salary details

$10

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How much do senior java developer jobs pay per hour?

As of Sep 8, 2026, the average hourly pay for senior java developer in Frederick, MD is $62.47, according to ZipRecruiter salary data. Most workers in this role earn between $54.71 and $69.81 per hour, depending on experience, location, and employer.

What is a senior Java developer?

Senior Java Developers are experienced software engineers who specialize in using the Java programming language to design, develop, and maintain complex applications. They typically lead development teams, oversee project architecture, and ensure code quality through best practices. In addition to strong coding skills, they often mentor junior developers and collaborate with stakeholders to deliver robust software solutions. Their expertise is crucial in building scalable, high-performance applications across various industries.

What are the key skills and qualifications needed to thrive as a senior Java developer?

To thrive as a Senior Java Developer, you need advanced proficiency in Java programming, experience with software design patterns, and a strong grasp of backend development, often supported by a degree in computer science or related field. Familiarity with frameworks like Spring, build tools such as Maven or Gradle, and version control systems like Git, as well as knowledge of cloud platforms, is typically required. Excellent problem-solving, leadership, and communication skills help you guide teams and collaborate effectively. These competencies are crucial for delivering robust, scalable software solutions and driving technical success within development teams.

What are some common challenges senior Java developers face when working on large-scale enterprise projects?

Senior Java Developers often encounter challenges such as maintaining code quality across large codebases, managing dependencies between modules, and ensuring optimal application performance. Collaborating with cross-functional teams—including QA, DevOps, and product management—requires clear communication and effective problem-solving. Additionally, staying updated with the latest Java frameworks and best practices is essential for delivering scalable and maintainable solutions in complex enterprise environments.

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

AspectSenior Java DeveloperJava Software Engineer
Required CredentialsBachelor's in CS or related, Java certifications often preferredBachelor's in CS or related, Java certifications beneficial
Work EnvironmentTeam lead roles, project management, mentoringDevelopment-focused, coding, testing, and implementation
Employer & Industry UsageTech companies, finance, e-commerceSoftware firms, startups, enterprise IT
Common Search & ComparisonOften compared for experience level and responsibilitiesSimilar roles with slight variations in scope

The main difference between a Senior Java Developer and a Java Software Engineer lies in their responsibilities and experience. Senior Java Developers typically take on leadership, mentoring, and project management roles, while Java Software Engineers focus more on coding, development, and technical implementation. Both roles require strong Java skills and relevant credentials, but the Senior Java Developer usually has more experience and a broader scope of responsibilities.

What are the most commonly searched types of Java Developer jobs in Frederick, MD?

The most popular types of Java Developer jobs in Frederick, MD are:

What are popular job titles related to Senior Java Developer jobs in Frederick, MD?

For Senior Java Developer jobs in Frederick, MD, the most frequently searched job titles are:

What cities near Frederick, MD are hiring for Senior Java Developer jobs?

Cities near Frederick, MD with the most Senior Java Developer job openings:

Senior Java Developer jobs near you
Infographic showing various Senior Java Developer job openings in Frederick, MD as of September 2026, with employment types broken down into 79% Full Time, 11% Part Time, and 10% Contract. Highlights an 78% Physical, 4% Hybrid, and 18% Remote job distribution, with an average salary of $129,933 per year, or $62.5 per hour.

Senior Oracle APEX Developer

Rockville, MD

Contact Government Services, LLC
Public Administration • 11 - 50 employees
Learn more about Contact Government Services, LLCexternal

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Re-posted 5 days ago

Job description

Senior Oracle APEX Developer
Employment Type: Full-Time, Entry-Mid Level
Department: Information Technology
 
CGS is hiring a Senior Oracle APEX Developer to support a range of IT services, including software application support, enterprise infrastructure support, service desk, ITSM, deskside support, workstation engineering and maintenance, telecommunications and mobility engineering services, managed print services, Active Directory services, and video conferencing. The ideal candidate will be personable and articulate and will focus on making sure that the customer's needs are met quickly and effectively.  The successful candidate will be a self-starter who can work with limited supervision.  Excellent communication skills are required to effectively interface with customers to understand requirements and mission needs, and then be able to translate them into actions.
 
CGS brings motivated, highly skilled, and creative people together to solve the government's most dynamic problems with cutting-edge technology. To carry out our mission, we are seeking candidates who are excited to contribute to government innovation, appreciate collaboration, and can anticipate the needs of others. Here at CGS, we offer an environment in which our employees feel supported, and we encourage professional growth through various learning opportunities. 
 
Skills and attributes for success
-     Work at the direction of the program manager to support the full lifecycle development of custom Oracle Applications, primarily using the Oracle APEX toolset.
-     Perform advanced use of Oracle APEX 4.0 and above.
-     Perform work with Oracle Integrated Development Environments such as Quest Toad and Oracle SQL Developer.
-     Design and manipulate web content dynamically using JQuery, Ajax, JavaScript, CSS, and HTML.
-     Create dynamic reports within the Oracle APEX environment. Provide support in the advanced use of Oracle Database products version 11 and above.
-     Provide support for Oracle database objects - tables, indexes, directories, sequences, triggers, etc.
-     Provide support with PL/SQL, Java, Windows PowerShell, and Unix shell scripting with familiarity with built-in PLSQL packages and procedures.
-     Provide support with storage, efficient retrieval, and manipulation of unstructured data (BLOBs, CLOBs, JSON, XMLType) in an Oracle environment.
-     Integrate and manage BI Publisher templates and web Services.
-     Successfully deliver enterprise-level workflow-centric applications.
-     Build logical functions and algorithms to automate business processes.
 
Qualifications
-     Bachelor's degree with 8+ years experience. A High School diploma with additional years of experience and/or relevant certifications may be considered in lieu of a degree.
-     U.S. Citizen.
-     Ability to obtain and maintain a public trust security clearance.
-     Experience with secure network programming in an Oracle environment; use of security certificates, HTTPS callouts, etc.
-     Experience with full lifecycle development of custom Oracle Applications, including the Oracle APEX toolset.
-     Experience with the use of Oracle Integrated Development Environments such as Quest Toad and Oracle SQL Developer.
-     Experience with JQuery, Ajax, JavaScript, CSS, and HTML.
-     Experience with PL/SQL, Java, Windows PowerShell, and Unix shell scripting with familiarity with built-in PLSQL packages and procedures.
-     Experience with storage, efficient retrieval, and manipulation of unstructured data (BLOBs, CLOBs, JSON, XMLType) in an Oracle environment.
-     Experience establishing goals and meeting project plan objectives.
-     Must be able to write and maintain system documentation on work products.
-     Excellent communication and teamwork skills.
-     Agile development experience.
-     Customer interface experience.
 
Ideally, you will also have: 
-     Experience with Oracle Database products version 11 and above.
-     Experience with Oracle Forms and Reports version 10G or higher.
-     Experience with Oracle APEX 4.0 and above.
-     Experience troubleshooting operational issues.
-     Government contracting experience, particularly with the DOJ.
-     Current DOJ Clearance.

Our Commitment : 
Contact Government Services (CGS) strives to simplify and enhance government bureaucracy through the optimization of human, technical, and financial resources. We combine cutting-edge technology with world-class personnel to deliver customized solutions that fit our client's specific needs. We are committed to solving the most challenging and dynamic problems.

For the past seven years, we've been growing our government contracting portfolio, and along the way, we've created valuable partnerships by demonstrating a commitment to honesty, professionalism, and quality work.

Here at CGS we value honesty through hard work and self-awareness, professionalism in all we do, and to deliver the best quality to our consumers mending those relations for years to come.

We care about our employees. Therefore, we offer a comprehensive benefits package.
-         Health, Dental, and Vision
-         Life Insurance
-         401k
-         Flexible Spending Account (Health, Dependent Care, and Commuter)
-         Paid Time Off and Observance of State/Federal Holidays

Contact Government Services, LLC is an Equal Opportunity Employer. Applicants will be considered without regard to their race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

Join our team and become part of government innovation!

Explore additional job opportunities with CGS on our Job Board:
https://cgsfederal.com/join-our-team/

For more information about CGS please visit: https://www.cgsfederal.com or contact:
Email: [email protected]

#CJ

$116,480 - $149,760 a year
We may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses and identifying potential inconsistencies or verification signals in application materials based on available information. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.
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