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Senior Java Developer C2C Jobs in Maryland (NOW HIRING)

Halvik

Sr. Java Developer

Greenbelt, MD · On-site

$58 - $74/hr

Halvik is seeking a Senior level Java Developer to build and maintain internal and external Java web-based applications. The successful candidate will become an integral part of our IT solutions team ...

Halvik

Sr. Java Developer

Greenbelt, MD · On-site

$130K - $150K/yr

Halvik is seeking a Senior level Java Developer to build and maintain internal and external Java web-based applications. The successful candidate will become an integral part of our IT solutions team ...

Halvik

Sr. Java Developer

Greenbelt, MD · On-site

$130K - $150K/yr

Halvik is seeking a Senior level Java Developer to build and maintain internal and external Java web-based applications. The successful candidate will become an integral part of our IT solutions team ...

BDR Solutions LLC

Sr. Java Developer (Hybrid)

Lanham, MD · On-site

$57 - $72.75/hr

BDR Solutions LLC is seeking a Senior Java Developer to serve as a Key Personnel position on an IRS MFRA Branch task order. This individual will serve as the primary technical authority for Java ...

Belay Technologies

Senior Java Developer

Hanover, MD

$190K - $238K/yr

Belay Technologies is seeking a strong Senior Software Engineer serving as a technical anchor for a ... The ideal candidate will have deep expertise in Java 17+, Spring Boot, solid principles, and modern ...

Belay Technologies

Senior Java Developer

Hanover, MD · On-site

$190K - $238K/yr

Belay Technologies is seeking a strong Senior Software Engineer serving as a technical anchor for a ... The ideal candidate will have deep expertise in Java 17+, Spring Boot, solid principles, and modern ...

Belay Technologies

Senior Java Developer

Hanover, MD · On-site

Belay Technologies is seeking a strong Senior Software Engineer serving as a technical anchor for a ... The ideal candidate will have deep expertise in Java 17+, Spring Boot, solid principles, and modern ...

Belay Technologies

Senior Java Developer

Hanover, MD · On-site

$56.50 - $72/hr

They are seeking a strong Senior Software Engineer to serve as a technical anchor for a new feature ... Required : • Expert in Java (17+ preferred) and the Spring Boot ecosystem. • Deep understanding ...

Dellfor Technologies

senior java developer

Maryland City, MD · On-site

$58.75 - $75/hr

Competence in using Java IDE tools of Eclipse, GGTS, Rational Application Developer (RAD), WebSphere Application Developer (WSAD) and Web Logic Workshop to develop dynamic web applications. Good ...

Compugain

Mid-Sr Java Developer

Rockville, MD

$52 - $67.25/hr

Java Developer Duration: Permanent Looking for Java Developer with 7+ Years of experience with Java and good hands on with AWS and Angular or Spring. Qualifications * Strong experience using Java and ...

Compugain

Mid-Sr Java Developer

Rockville, MD · On-site +1

$52 - $67.25/hr

Java Developer Duration: Permanent Looking for Java Developer with 7+ Years of experience with Java and good hands on with AWS and Angular or Spring. Qualifications * Strong experience using Java and ...

TecTammina

Sr Java Developer

Baltimore, MD

$57 - $72.50/hr

Experience with Java ESB frameworks, FUSE ESB preferred * Experience with build frameworks, Maven preferred * Experience with Apache Camel * Experience with OSGI, Apache Karaf preferred * Strong ...

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Senior Java Developer C2C information

What is the difference between Senior Java Developer C2C vs Java Software Engineer?

AspectSenior Java Developer C2CJava Software Engineer
CredentialsJava certifications, experience in Java SE/EEJava certifications, similar experience
Work EnvironmentContract-based, client-site or remote, project-focusedFull-time, in-house or remote, development team
Industry UsageFreelance/contract roles across industriesPermanent roles in tech companies or enterprises
Search IntentContract Java roles, freelance Java jobsFull-time Java developer positions

While both roles require Java expertise and similar certifications, Senior Java Developer C2C typically involves contract-based, project-specific work often on a freelance basis. Java Software Engineer usually refers to full-time, in-house roles within organizations. The choice depends on whether you're seeking flexible contract work or a permanent position.

What are the key skills and qualifications needed to thrive as a Senior Java Developer (C2C), and why are they important?

To thrive as a Senior Java Developer (C2C), you need expert-level proficiency in Java, object-oriented programming, system architecture, and a solid foundation in computer science, usually supported by a bachelor’s degree or higher. Familiarity with frameworks like Spring, Hibernate, RESTful APIs, version control systems such as Git, and build tools like Maven or Gradle, along with experience in Agile methodologies, is typically required. Strong problem-solving, leadership, and communication skills help you collaborate effectively with cross-functional teams and mentor junior developers. These skills and qualities are crucial for delivering robust, scalable software solutions and ensuring project success in dynamic environments.

What are some common challenges Senior Java Developers face when working on C2C (Corp-to-Corp) contracts?

Senior Java Developers working on C2C contracts often encounter challenges such as quickly adapting to new project environments, understanding diverse client requirements, and integrating with teams that may have established workflows or legacy systems. Additionally, they need to manage their own business operations, including invoicing and compliance, while maintaining high productivity and technical standards. Effective communication and self-management are essential, as C2C roles may offer less direct supervision compared to traditional employment.

What is a Senior Java Developer C2C?

A Senior Java Developer C2C is an experienced software engineer who specializes in Java programming and works on a 'Corp-to-Corp' (C2C) basis. This means the developer provides services through their own corporation or business entity, rather than as a direct employee or independent contractor. Senior Java Developers are responsible for designing, developing, and maintaining complex Java applications, leading projects, and mentoring junior developers. C2C arrangements are common in IT contracting, particularly in the United States, and typically require the developer to handle their own business taxes and legal compliance.
What are the most commonly searched types of Java Developer C2C jobs in Maryland? The most popular types of Java Developer C2C jobs in Maryland are:
What are popular job titles related to Senior Java Developer C2C jobs in Maryland? For Senior Java Developer C2C jobs in Maryland, the most frequently searched job titles are:
What job categories do people searching Senior Java Developer C2C jobs in Maryland look for? The top searched job categories for Senior Java Developer C2C jobs in Maryland are:
What cities in Maryland are hiring for Senior Java Developer C2C jobs? Cities in Maryland with the most Senior Java Developer C2C job openings:
Senior Java Developer C2C jobs near you
Infographic showing various Senior Java Developer C2C job openings in Maryland as of June 2026, with employment types broken down into 38% Full Time, and 62% Contract. Highlights an 100% In-person job distribution.
Sr. Java Developer

Sr. Java Developer

Halvik

Greenbelt, MD • On-site

$58 - $74/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

Posted 28 days ago

Job description

Halvik Corp delivers a wide range of services to 13 executive agencies and 15 independent agencies. Halvik is a highly successful WOB business with more than 50 prime contracts and 500+ professionals delivering Digital Services, Advanced Analytics, Artificial Intelligence/Machine Learning, Cyber Security and Cutting-Edge Technology across the US Government. Be a part of something special!

Halvik is seeking a Senior level Java Developer to build and maintain internal and external Java web-based applications. The successful candidate will become an integral part of our IT solutions team of developers, database and systems administrators in support the NASA SEWP Program Management Office, a multi-award government acquisition contract focused on commercial IT products and product based services.
 
RESPONSIBILITIES:
  • Develop and implement new web applications to support the NASA SEWP Program
  • Maintain and improve the existing Java web-based applications that support the NASA SEWP Program focusing on usability and performance
  • Perform peer code reviews and application testing to include unit, integration, regression and performance testing to maintain software quality and integrity
  • Participate in all phases of the Software Development Life Cycle (SDLC) including requirements gathering, coding, implementation and production launch
  • Collaborate with application developers, database and systems administrators, content management and internal stakeholders
  • Document the system, component and interface designs and requirements to ensure future maintainability
  • Adhere to project schedules and proactively resolve or escalate issues to management
  • Adapt and contribute to a fast-paced and agile application development environment
  • Participate in the maintenance and deployment of projects, providing support outside normal core business hours or nights and weekends
  • Provide Level II (technical) customer support via phone, e-mail and ServiceNow customer service ticketing software
 
EDUCATION/EXPERIENCE:
  • Required: BA/BS degree in Computer Science or related field
  • Required: 10+ years of experience developing Java web-based applications
  • Required: 5+ years of experience working with ORACLE databases writing SQL queries
  • Preferred: Java experience to include JSP, Spring Web Framework and RESTful Web Services
  • Preferred: Experience with CSS and HTML, JSON and XML
  • Preferred: Experience with JBoss, Hibernate or myBATIS, Maven, rich AJAX web applications, GIT and Software Development Process Model knowledge
  • Optional: Agile Development Experience
Other Requirements:
  • US Citizen or Naturalized Citizen, with ability to obtain Public Trust
  • Must work On-site a minimum of 4 days per week.
  • Must possess strong written and oral communications skills

Halvik offers a competitive full benefits package including:
Company-supported medical, dental, vision, life, STD, and LTD insurance
Benefits include 11 federal holidays and PTO
Eligible employees may receive performance-based incentives in recognition of individual and/or team achievements.
401(k) with company matching
Flexible Spending Accounts for commuter, medical, and dependent care expenses
Tuition Assistance
Charitable Contribution matching

Halvik Corp is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability or veteran status.

Halvik's pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.

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