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60 System One Java Developer Jobs Hiring in PA

System One

Java API Tech Lead

Pittsburgh, PA · On-site

$70 - $10K/hr

Familiarity with CI/CD pipelines and DevOps practices. * Strong understanding of application ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Java API Tech Lead

Pittsburgh, PA · On-site

$70 - $10K/hr

Familiarity with CI/CD pipelines and DevOps practices. * Strong understanding of application ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Java API Tech Lead

Pittsburgh, PA · On-site

$70 - $10K/hr

Familiarity with CI/CD pipelines and DevOps practices. * Strong understanding of application ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Team Lead Engineer

New Hope, PA · On-site

Job Title: Team Lead Engineer Location: New Hope, PA Responsibilities * Own team delivery ... Java * node.js, GO System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders ...

System One

Java API Tech Lead

Pittsburgh, PA · On-site

$70 - $10K/hr

Familiarity with CI/CD pipelines and DevOps practices. * Strong understanding of application ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Java API Tech Lead

Pittsburgh, PA · On-site

$70 - $10K/hr

Familiarity with CI/CD pipelines and DevOps practices. * Strong understanding of application ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Java API Tech Lead

Pittsburgh, PA · On-site

$70 - $10K/hr

Familiarity with CI/CD pipelines and DevOps practices. * Strong understanding of application ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Java API Tech Lead

Pittsburgh, PA · On-site

$70 - $10K/hr

Familiarity with CI/CD pipelines and DevOps practices. * Strong understanding of application ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Java API Tech Lead

Pittsburgh, PA · On-site

$70 - $10K/hr

Familiarity with CI/CD pipelines and DevOps practices. * Strong understanding of application ... System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering ...

System One

Team Lead Engineer

New Hope, PA · On-site

Job Title: Team Lead Engineer Location: New Hope, PA Responsibilities * Own team delivery ... Java * node.js, GO System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders ...

System One

Team Lead Engineer

New Hope, PA · On-site

Job Title: Team Lead Engineer Location: New Hope, PA Responsibilities * Own team delivery ... Java * node.js, GO System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders ...

System One

Team Lead Engineer

New Hope, PA · On-site

Job Title: Team Lead Engineer Location: New Hope, PA Responsibilities * Own team delivery ... Java * node.js, GO System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders ...

System One

Team Lead Engineer

New Hope, PA · On-site

Job Title: Team Lead Engineer Location: New Hope, PA Responsibilities * Own team delivery ... Java * node.js, GO System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders ...

System One

Team Lead Engineer

New Hope, PA · On-site

Job Title: Team Lead Engineer Location: New Hope, PA Responsibilities * Own team delivery ... Java * node.js, GO System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders ...

System One

Team Lead Engineer

New Hope, PA · On-site

Job Title: Team Lead Engineer Location: New Hope, PA Responsibilities * Own team delivery ... Java * node.js, GO System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders ...

System One

Team Lead Engineer

New Hope, PA · On-site

Job Title: Team Lead Engineer Location: New Hope, PA Responsibilities * Own team delivery ... Java * node.js, GO System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders ...

System One

Team Lead Engineer

New Hope, PA · On-site

Job Title: Team Lead Engineer Location: New Hope, PA Responsibilities * Own team delivery ... Java * node.js, GO System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders ...

System One

Team Lead Engineer

New Hope, PA · On-site

Job Title: Team Lead Engineer Location: New Hope, PA Responsibilities * Own team delivery ... Java * node.js, GO System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders ...

System One

Team Lead Engineer

New Hope, PA · On-site

Job Title: Team Lead Engineer Location: New Hope, PA Responsibilities * Own team delivery ... Java * node.js, GO System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders ...

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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.

Java API Tech Lead

System One

Pittsburgh, PA • On-site

$70 - $10K/hr

Contractor

Medical, Dental, Vision, Life, Retirement

Re-posted 26 days ago

Job description

Job Title: Java API Tech Lead Location: Pittsburgh, Pennsylvania Type: Contract To Hire Compensation: $70.00 - $10,000.00 Work Model: Onsite – onsite Hours: 40.0 Security Clearance: Not specified

Overview Leave placeholder text here for recruiter to input

Responsibilities

  • Drive the design, development, and delivery of scalable, high-performance web applications using Java, microservices architecture, and modern frontend frameworks.
  • Provide technical leadership and hands-on development expertise in Java, Spring Boot, and frontend technologies like Angular or React.
  • Develop and design RESTful APIs and microservices for enterprise applications.
  • Collaborate with cross-functional team members and stakeholders to ensure high-quality solution delivery.
  • Mentor team members to build scalable, maintainable, and high-quality code.
  • Implement best practices in CI/CD, security, and performance optimization.
  • Lead architecture and roadmap discussions for backend and frontend systems.
  • Ensure thorough testing, automation, and defect resolution across the stack.
  • Oversee integration and ensure seamless end-to-end system functionality.
Requirements
  • 8–12 years of experience developing enterprise applications with Java / J2EE / Spring ecosystem.
  • Strong experience in full stack development, including backend (Java, Spring Boot) and frontend (Angular, React, or similar frameworks).
  • Proficiency in designing RESTful APIs and microservices architectures.
  • Experience with modern UI technologies such as Angular (2+), React, or Vue.js, along with HTML5, CSS3, and JavaScript/TypeScript.
  • Hands-on experience with containerization (Docker), Kubernetes, and cloud platforms (AWS/Azure/GCP).
  • Knowledge of event-driven architecture using Kafka or similar systems.
  • Experience with databases such as Oracle, SQL Server, or MongoDB.
  • Familiarity with CI/CD pipelines and DevOps practices.
  • Strong understanding of application security, OAuth/JWT, and secure coding practices.
  • Proven leadership, mentoring, and team collaboration skills in Agile environments.

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.#M-#LI-

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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

View All System One Jobs