1

Senior Java Developer C2C Jobs in Kent, WA (NOW HIRING)

Sr. Java Engineer@ Seattle, WA

Seattle, WA · On-site

$142.20K - $187.20K/yr

Strong proficiency in Java development with Spring Boot. * Hands-on experience with ... Exposure to Generative AI engineering tools and frameworks (Azure OpenAI, Vertex AI, AWS Bedrock)

Sr. Java Engineer@ Seattle, WA

Seattle, WA

$142.30K - $187.30K/yr

Strong proficiency in Java development with Spring Boot. * Hands-on experience with ... Exposure to Generative AI engineering tools and frameworks (Azure OpenAI, Vertex AI, AWS Bedrock)

Java Senior Engineer Development

Seattle, WA

$142.30K - $187.30K/yr

Java Senior Engineer Development Location: Seattle, WA - Onsite Type: Full-time * 5-7 years overall development experience. * You have industry-leading technical abilities. You demonstrate a breadth ...

Sr. Software Engineer (Java)

Seattle, WA

$142.30K - $187.20K/yr

Type: Sr. Software Engineer (Java) Location: Seattle, WA Openings: 1 Type: Long-term Contract Summary Do you have a passion for developing highly scalable, highly available software that provides key ...

Sr. Software Engineer (Java)

Seattle, WA · On-site

$142.30K - $187.20K/yr

Type: Sr. Software Engineer (Java) Location: Seattle, WA Openings: 1 Type: Long-term Contract Summary Do you have a passion for developing highly scalable, highly available software that provides key ...

Our Senior Staff Engineer works with our Staff and Sr. Engineers to innovate and build new systems ... Knowledge of developer tooling across the software development life cycle (task management, source ...

Senior Staff Engineer - Java (HYBRID)

Seattle, WA

$142.30K - $187.20K/yr

Knowledge of developer tooling across the software development life cycle (task management, source ... Java (deep) - Java 17/21 idioms, JVM performance tuning, profiling streaming workloads, Spring Boot ...

Senior Staff Engineer - Java (HYBRID)

Seattle, WA

$142.30K - $187.20K/yr

Knowledge of developer tooling across the software development life cycle (task management, source ... Java (deep) - Java 17/21 idioms, JVM performance tuning, profiling streaming workloads, Spring Boot ...

Java Engineer

Seattle, WA · On-site

$59 - $80.75/hr

Our client is seeking a Sr Level Java engineer for engineering and delivery microservices and API's to support Customer Data. The team supports various mid-layer services across the organization and ...

Java Engineer

Seattle, WA · On-site

$59 - $80.75/hr

Our client is seeking a Sr Level Java engineer for engineering and delivery microservices and API's to support Customer Data. The team supports various mid-layer services across the organization and ...

next page

Showing results 1-20

Senior Java Developer C2C information

See Kent, WA salary details

$12

$70

$97

How much do senior java developer c2c jobs pay per hour?

As of May 30, 2026, the average hourly pay for senior java developer c2c in Kent, WA is $70.93, according to ZipRecruiter salary data. Most workers in this role earn between $62.16 and $79.23 per hour, depending on experience, location, and employer.

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 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 job categories do people searching Senior Java Developer C2C jobs in Kent, WA look for? The top searched job categories for Senior Java Developer C2C jobs in Kent, WA are:
Software Development Engineer (SDE but not a Java Developer)

Software Development Engineer (SDE but not a Java Developer)

IT America Inc

Seattle, WA • Remote

$53 - $72.75/hr

Contractor

Posted 9 days ago


Job description

Position: Software Development Engineer

Location: Remote

Duration: Long term contract

Type: Only W2 (No C2C/1099)

Notes from Client Manager:

The Amazon Selection & Catalog Systems (ASCS) team needs a Software Development Engineer (do not confuse this with a “Java Developer”) to spearhead the consolidation and retirement of legacy services. This initiative aims to reduce operational complexity and modernize our architecture. This team focuses on a critical aspect of Amazon's Catalogue. The catalogue team catalogs customers' orders and products for the process management system. Currently, a new system is being built in Java to replace the old system, which is in Perl and can't support the increasing traffic.

The task involves transitioning to the new system, a global project requiring engineers with experience in large distributed systems. Everyone will play a hands-on role in this project.

Candidates need experience in leading teams and contributing to software architecture. Knowledge of Perl will be helpful as it involves debugging legacy Perl code and migrating to Java for the platform and endpoints that are already created. The Amazon Software Development Engineer (SDE) will design, and TEKsystems SDE 3’s will customize the API designs to fit each workstream. Experience in Cloud Services and distributed systems is critical for success in this role.

This project isn't about creating new APIs; it's primarily about migrating clients to already established strategic endpoints. The challenge lies in migrating from service A to service B. Some services have as few as four, and some have as many as twelve active services that need to be migrated. This person will also need to maintain the code standard and ensure the quality of the software before it's pushed for production release.

Each of the three workstreams will have independent daily standups, and there will be internal Amazon support from engineers to remove roadblocks. The ability to understand a milestone and work backwards to deliver the end result is also essential because they will be guiding SDE 2’s as well as contributing to the development of the workstreams.

Must have:

  • Java
  • Python
  • Software development
  • Aws
  • Agile
  • Linux
  • Cloud
  • Microservices
  • Software engineering
  • Development
  • Springboot
  • Spring

Top Skills:

  • 8+ years of Building and designing software and API migration experience within Java. they really need to be flexible with tooling because Amazon has an internal tool they are using that is similar to Java that they are migrating to. (Guice is preferred but if they have Guice and Spring) and working knowledge of PERL.
  • 6+ years of Work on highly distributed systems from enterprise level companies
  • 4 + years of CI/CD environments from a cloud environment (EC2, S3 etc…)
  • Computer Science degree is required.

Secondary Skills:

  • Javascript
  • React
  • Angular
  • React.js
  • Job Description

Basic Qualifications

  • Bachelor's Degree in Computer Science or related field,
  • Computer Science fundamentals in OO design, data structures and algorithm design
  • 6+ year relevant work experience in building and managing complex systems in production.
  • 6+ or more years’ experience in software development, proficient in Java (Guice and Spring) and working experience in PERL.
  • Understanding of CI/CD, Git based version control, agile scrum methodologies.
  • Experience with testing, profiling, debugging, and optimizing large scale systems.
  • Ability to learn and adapt quickly to the engineering practices in the team.
  • Excellent team player. Ability to estimate, plan, track and deliver individual tasks on time.
  • Strong communication skills both verbal and written.

Preferred Qualifications

  • Strong communication skills both verbal and written.
  • Strong, object-oriented design and coding skills (Perl and Java preferably on a UNIX or Linux platform)
  • Experience in building test harness and test infrastructure.
  • Experience with distributed (multi-tiered) systems architecture, algorithms, and relational database,
  • Ability to refactor programs effectively and evaluate optimization opportunities from system performance and risks perspective.
  • Ability to effectively articulate technical challenges, risks, tradeoffs and solutions

Additional Skills & Qualifications

Leadership Principles

  • Deliver Results
  • Dive Deep
  • Ownership
  • Insist on the Highest Standards