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Senior Java Developer C2C Jobs in Maryland (NOW HIRING)

Base-2 Solutions, LLC

Senior Java Developer

Annapolis, MD · On-site

$56.75 - $72.25/hr

Yes Position Summary Base-2 Solutions is seeking a Senior Java Developer to modernize a critical government information system. The ideal candidate will have deep expertise in enterprise Java ...

CompuGain

Senior Java Developer

Bethesda, MD · On-site

$61 - $78/hr

CompuGain is a company that supports federal health enterprise systems, and they are seeking a Senior Java Developer for a long-term contract position. The role involves researching, designing ...

Fairygodboss

Java Developer

Bethesda, MD · On-site

$100 - $125/hr

Leidos has a new and exciting opportunity for a Sr. Java Developer with advanced Excel in our National Security Sector's (NSS) Cyber & Analytics Business Area (CABA) . Our talented team is at the ...

Markon

Senior Java Developer

Annapolis Junction, MD · On-site

$120K - $200K/yr

Description PLEX Solutions, A Part of Markon is looking for a motivated Senior Analytic Developer ... Demonstrated expertise developing production software in Java, with experience designing, testing ...

Markon

Senior Java Developer

Annapolis Junction, MD · On-site

$120K - $200K/yr

PLEX Solutions, A Part of Markon is looking for a motivated Senior Analytic Developer to support ... Demonstrated expertise developing production software in Java, with experience designing, testing ...

Markon

Senior Java Developer

Annapolis Junction, MD · On-site

$120K - $200K/yr

Description PLEX Solutions, A Part of Markon is looking for a motivated Senior Analytic Developer ... Demonstrated expertise developing production software in Java, with experience designing, testing ...

TecTammina

Sr Java Developer

Baltimore, MD · On-site

$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 ...

CompuGain

Mid-Sr Java Developer

Potomac, MD · On-site

$52.75 - $68.25/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

Senior Java Developer

Rockville, MD · On-site

$80 - $85/hr

Company Description Tech Tammina LLC 7 - 8 years experience with the following technologies: o JAVA, J2EE, Spring 3.0, Hibernate, EJB 3, AJAX, JSF, ICE faces, JSP, Struts 2 o SOA, Enterprise Service ...

Compugain

Mid-Sr Java Developer

Rockville, MD · On-site

$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 ...

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Senior Java Developer C2C information

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 key skills and qualifications needed to thrive as a senior Java developer C2C?

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 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 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 August 2026, with employment types broken down into 79% Full Time, 6% Part Time, and 15% Contract. Highlights an 83% Physical, 5% Hybrid, and 12% Remote job distribution.

Senior Java Developer

Base-2 Solutions, LLC

Annapolis, MD • On-site

$56.75 - $72.25/hr

Full-time

Medical, Dental, Vision, Life, Retirement, PTO

This job post has expired 1 day ago. Applications are no longer accepted.

Key responsibilities

  • Plan and execute technology stack upgrades for enterprise Java applications in secure government environments.

  • Develop and maintain Java/Python components on Windows-based VMware infrastructure.

  • Upgrade Apache Solr clusters with ZooKeeper coordination and migrate Solr index data during version upgrades.

Job description

  • Requisition ID: 3948
  • Standard Title:
  • Required Security Clearance: Top Secret/SCI with CI Polygraph
  • Location: Annapolis Junction, MD
  • Work Type: Hybrid (On-Site and Remote)
  • Shift: First
  • Referral Eligibility: Eligible
  • U.S. Citizenship Required? Yes

Position Summary
Base-2 Solutions is seeking a Senior Java Developer to modernize a critical government information system. The ideal candidate will have deep expertise in enterprise Java application development and a proven track record of upgrading complex software infrastructures in secure, regulated environments. The role involves planning and executing upgrades across the technology stack, including Apache Solr with ZooKeeper, Apache Tomcat, Apache Directory Studio, and Java/Python components running on Windows-based VMware infrastructure. Strong knowledge of Oracle 19c database integration, SAP Business Intelligence reporting frameworks, secure coding practices, and upgrading and migrating Solr index data is essential. Experience with PrimeFaces UI framework is a plus. The candidate will collaborate with cross-functional teams including security, infrastructure, and business stakeholders to ensure seamless upgrades with minimal operational disruption.
Essential Duties and Responsibilities
  • Plan and execute technology stack upgrades for enterprise Java applications in secure government environments.
  • Develop and maintain Java/Python components on Windows-based VMware infrastructure.
  • Modernize legacy application code to current standards and best practices.
  • Implement secure coding practices in compliance with government security requirements.
  • Upgrade Apache Solr clusters with ZooKeeper coordination.
  • Migrate and optimize Solr index data during version upgrades.
  • Manage Apache Tomcat application server configurations and deployments.
  • Integrate applications with Oracle 19c database systems.
  • Work with Apache Directory Studio for directory services integration.
  • Support SAP Business Intelligence reporting framework integrations.
  • Collaborate with security, infrastructure, and business stakeholder teams.
  • Ensure minimal operational disruption during system upgrades.
  • Document technical designs, upgrade procedures, and system configurations.
  • Participate in code reviews and knowledge-sharing sessions.
Required Qualifications
  • Expertise in enterprise Java application development on Windows-based VMware infrastructure.
  • Expertise with Python.
  • Expertise with Apache Solr with ZooKeeper (including upgrading and migrating Solr index data).
  • Experience with Apache Tomcat, Apache Directory Studio.
  • Experience with Oracle 19c/relational database integration.
  • Experience with SAP Business Intelligence reporting frameworks.
  • Experience with secure coding practices for government compliance.
Preferred Qualifications
  • Experience with PrimeFaces UI framework.
Required Education and Experience Equivalency
  • Bachelor's degree with 9 years of experience.
  • Master's degree with 7 years of experience.
  • No degree with 13+.
Required Certifications
  • None specified.
Required Security Clearance
  • Active Top Secret/SCI with CI Polygraph

Pay & Benefit Highlights
Compensation
  • Competitive fixed salary or hourly pay (based on experience, skills, location, and internal equity).
  • Employee referral bonuses up to $10,000 per hired referral.
  • Additional bonus opportunities for exceptional performance and contributions to business development and company growth (role-dependent).
Health
  • 100% company-paid medical premiums for employees and eligible dependents.
  • Choose from multiple plan options with CareFirst, Kaiser, and UnitedHealthcare, including PPO, POS, HMO, and HSA-compatible plans.
  • 100% company-paid dental premiums for employees and eligible dependents.
  • 100% company-paid vision premiums for employees and eligible dependents.
Income Protection
  • 100% company-paid premiums for short-term disability.
  • 100% company-paid premiums for long-term disability.
  • 100% company-paid premiums for accidental death & dismemberment (AD&D).
  • 100% company-paid premiums for life insurance up to $200,000.
Retirement
  • 401(k) with immediate vesting: 4% company match plus a 4% non-elective company contribution (8% total).
  • 401(k) pre-tax and Roth options.
Leave
  • Up to 20 days of flexible paid time off (PTO).
  • 11 paid floating holidays.
Work-Life Balance
  • Flexible work schedules, including flex time and compressed work periods (contract and project-dependent).

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