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60 System One Java Developer Jobs Hiring in PA

System One

Sr.Java API Developer

Pittsburgh, PA · On-site

$170/hr

Java API Developer Location: Pittsburgh, Pennsylvania, United States Type: Direct Hire Compensation ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java API Developer

Pittsburgh, PA · On-site

$170/hr

Java API Developer Location: Pittsburgh, Pennsylvania, United States Type: Direct Hire Compensation ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java API Developer

Pittsburgh, PA · On-site

$170/hr

Java API Developer Location: Pittsburgh, Pennsylvania, United States Type: Direct Hire Compensation ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java API Developer

Pittsburgh, PA · On-site

$170/hr

Java API Developer Location: Pittsburgh, Pennsylvania, United States Type: Direct Hire Compensation ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java API Developer

Pittsburgh, PA · On-site

$170/hr

Java API Developer Location: Pittsburgh, Pennsylvania, United States Type: Direct Hire Compensation ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java API Developer

Pittsburgh, PA · On-site

$170/hr

Java API Developer Location: Pittsburgh, Pennsylvania, United States Type: Direct Hire Compensation ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java API Developer

Pittsburgh, PA · On-site

$170/hr

Java API Developer Location: Pittsburgh, Pennsylvania, United States Type: Direct Hire Compensation ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java API Developer

Pittsburgh, PA · On-site

$170/hr

Java API Developer Location: Pittsburgh, Pennsylvania, United States Type: Direct Hire Compensation ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java API Developer

Pittsburgh, PA · On-site

$170/hr

Java API Developer Location: Pittsburgh, Pennsylvania, United States Type: Direct Hire Compensation ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java API Developer

Pittsburgh, PA · On-site

$170/hr

Java API Developer Location: Pittsburgh, Pennsylvania, United States Type: Direct Hire Compensation ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java API Developer

Pittsburgh, PA · On-site

$170/hr

Java API Developer Location: Pittsburgh, Pennsylvania, United States Type: Direct Hire Compensation ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java Full Stack Developer

Pittsburgh, PA · On-site

$51 - $65.75/hr

Job Title: Sr. Java Full Stack Developer Location: Pittsburgh, Pennsylvania Type: Contract To Hire ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java Full Stack Developer

Pittsburgh, PA · On-site

$51 - $65.75/hr

Job Title: Sr. Java Full Stack Developer Location: Pittsburgh, Pennsylvania Type: Contract To Hire ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java Full Stack Developer

Pittsburgh, PA · On-site

$51 - $65.75/hr

Job Title: Sr. Java Full Stack Developer Location: Pittsburgh, Pennsylvania Type: Contract To Hire ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java Full Stack Developer

Pittsburgh, PA · On-site

$51 - $65.75/hr

Job Title: Sr. Java Full Stack Developer Location: Pittsburgh, Pennsylvania Type: Contract To Hire ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java Full Stack Developer

Pittsburgh, PA · On-site

$51 - $65.75/hr

Job Title: Sr. Java Full Stack Developer Location: Pittsburgh, Pennsylvania Type: Contract To Hire ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java Full Stack Developer

Pittsburgh, PA · On-site

$51 - $65.75/hr

Job Title: Sr. Java Full Stack Developer Location: Pittsburgh, Pennsylvania Type: Contract To Hire ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java Full Stack Developer

Pittsburgh, PA · On-site

$51 - $65.75/hr

Job Title: Sr. Java Full Stack Developer Location: Pittsburgh, Pennsylvania Type: Contract To Hire ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java Full Stack Developer

Pittsburgh, PA · On-site

$51 - $65.75/hr

Job Title: Sr. Java Full Stack Developer Location: Pittsburgh, Pennsylvania Type: Contract To Hire ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Sr.Java Full Stack Developer

Pittsburgh, PA · On-site

$51 - $65.75/hr

Job Title: Sr. Java Full Stack Developer Location: Pittsburgh, Pennsylvania Type: Contract To Hire ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

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System One Jobs Information

What is it like to work at System One?

System One is a professional services company that values collaboration, innovation, and a client-centric approach, fostering a dynamic and supportive work environment.

The company's team structure is designed to facilitate knowledge sharing and expertise exchange, with a flat organizational hierarchy that encourages open communication and cross-functional collaboration. System One's mission is to deliver high-quality solutions to its clients through a network of experienced professionals and cutting-edge technologies.

Working at System One may appeal to candidates who are looking for a challenging and rewarding career in a fast-paced, client-driven industry, with opportunities for professional growth and development in a collaborative and dynamic work environment.

What makes System One an attractive place to work?

System One is a leading provider of workforce solutions and staffing services, known for its expertise in delivering high-quality talent to various industries. The company's workplace is characterized by a culture of innovation, collaboration, and flexibility, offering employees opportunities to work on diverse projects and develop their skills in a dynamic environment. By joining System One, professionals can expect to contribute to the growth and success of a forward-thinking organization, with opportunities for career advancement and professional development in a rapidly evolving industry.

What are the most popular jobs at System One in Pennsylvania?

What are the most popular states for System One Java Developer Jobs?

Infographic showing various Java Developer job openings at System One in Pennsylvania as of August 2026, with employment types broken down into 35% Full Time, 1% Part Time, 1% Temporary, 62% Contract, and 1% Nights. Highlights an 100% Physical job distribution.

Sr.Java API Developer

System One

Pittsburgh, PA • On-site

$170/hr

Other

Medical, Dental, Vision, Life, Retirement

Re-posted 26 days ago

Job description

Job Title: Sr.Java API DeveloperLocation: Pittsburgh, Pennsylvania, United StatesType: Direct HireCompensation: $170.00Work Model: Onsite – onsiteHours: 40.0Security Clearance: Not specified

OverviewLeave placeholder text here for recruiter to input

Responsibilities

  • Design, build, and deploy Java RESTful services and microservices to support client applications.
  • Develop API standards, improve existing services, and collaborate with API developers across teams to build new features at large scale.
  • Create and review technical design documents, and translate detailed requirements into functional system designs.
  • Utilize DEVOPs tools such as Jenkins, uDeploy, and GIT to streamline deployment processes.
  • Work with open-source and library components to expedite development and enhance system capabilities.
  • Integrate applications with Oracle / SQL Server databases and work with containerization tools like OpenShift and Kubernetes.
  • Adhere to security best practices by coding to prevent hacking vulnerabilities.
  • Participate in Agile teams, providing technical expertise and effective communication across diverse groups.
Requirements
  • At least 6+ years of experience in Java API development, REST APIs, Spring Boot, XML, JSON, and Swagger.
  • Proven experience developing and consuming SOAP and REST web services in a production environment.
  • Experience working with OpenShift, Containerization, and Microservices architecture.
  • 3+ years of experience with GitHub, Jenkins, and CI/CD pipelines.
  • Knowledge of client-side technologies such as Node.js and Angular 8+.
  • Hands-on experience with Kubernetes, Apache Kafka, and MongoDB.
  • Strong understanding of integrating Java applications with Oracle or SQL Server databases.
  • Excellent collaboration, communication, and writing skills in an Agile environment.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

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About System One

Sourced by ZipRecruiter

System One helps employers get work done more efficiently and economically without compromising quality. Over our 35+ year history, we've helped connect thousands of talented people with innovative companies. The excitement of a perfect fit motivates us every single day.

Industry

Business consulting services and recruiting and staffing services

Company size

5,001 - 10,000 Employees

Headquarters location

Pittsburgh, PA, US

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