Sr.Java API Developer
Pittsburgh , Pennsylvania
Experience: 0
Category: Information Technology
Contractor Work Model: Onsite
Brand: System One
Compensation Range: 170.00
Job ID: 376146
Date Posted: 06/29/2026
Shortcut: http://jobs.systemone.com/MY6cIY
Job Title: Sr.Java API Developer
Location: Pittsburgh, Pennsylvania, United States
Type: Direct Hire
Compensation: $170.00
Work Model: Onsite – onsite
Hours: 40.0
Security Clearance: Not specified
Overview
Leave 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.
- 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.
#M-
#LI-
-
Sr.Java Full Stack Developer
Pitsburgh , Pennsylvania
Job Title: Sr. Java Full Stack Developer Location: Pittsburgh, Pennsylvania Type: Contract To Hire Responsibilities: Design, develop, and maintain Java API services, including RESTful APIs and microservices, ensuring scalability, security, and high per...
Date Posted: 06/30/2026 Recommended
-
Mid Java API Developer
Pittsburgh , Pennsylvania
Mid Java API Developer Job Type: Permanent Full Time Location: Pittsburgh, Pennsylvania, United States Description: Mid Java API Developer Position Description This role must be performed in Pittsburgh, PA -or- Dallas, TX on the client site 5 days per ...
Date Posted: 06/29/2026 Recommended
-
Sr. Java Full Stack Developer
Dallas , Texas
Job Title: Sr. Java Full Stack Developer Location: Dallas, Texas Type: Fulltime Compensation: Not specified Contractor Work Model: Onsite – onsite Responsibilities Lead and mentor a team of developers to deliver high-quality solutions Drive architectur...
Date Posted: 05/06/2026 Recommended
-
Java API Tech Lead
Pittsburgh , Pennsylvania
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 in...
Date Posted: 06/29/2026 Recommended
-
Java Developer (Secret Clearance)
Arlington, Virginia
Java Developer with OpenFGA experience Arlington, VA - hybrid (2 days a week onsite) Secret clearance is required to start Responsibilities: • Design, develop, and deploy cloud-native and containerized applications using Java and modern cloud technolog...
Date Posted: 06/12/2026 Recommended
-
Sr. Java Full Stack Developer
Dallas , Texas
Senior Java Full Stack Developer Full-Time (Direct Hire) Dallas, TX Position Overview We are seeking a Senior Java Full Stack Developer to design, build, and deliver scalable enterprise applications. This role involves working on high-impact projects w...
Date Posted: 05/06/2026 Recommended
-
Sr Software Engineer
Strongsville, OH
Tittle: Sr. Software Engineer Location: Strongsville, OH or Pittsburgh, PA Work Mode : Hybrid (3days Office / 2days Remote) Duration: Contract to Hire Years Of Exp Required: 10+ Years Function of the Group: Payment Center team creates "one stop shop" f...
Date Posted: 05/19/2026 Recommended
-
Cloud Solution Architect - Prisma
Charlotte, North Carolina
Job Title: Cloud Solution Architect - Prisma Location: Charlotte, North Carolina, United States Type: Contract Responsibilities: Design and build scalable, secure multi-cloud architectures across AWS, Azure, and GCP. Work across cloud infrastructure, K...
Date Posted: 05/31/2026 Recommended
-
Lead Full-Stack Developer
McLean, VA
Lead Full-Stack Developer Remote This role supports a federal client and requires the ability to obtain a public trust clearance. No sponsorship is available. We are seeking a Lead Full-Stack Developer to support a major federal modernization initiativ...
Date Posted: 06/22/2026 Recommended
-
Full-Stack Developer
mclean, Virginia
Senior Full-Stack Developer (Python / Django / AWS) Location: Remote (EST Preferred) Type: Contract To Hire Contractor Work Model: Remote Responsibilities Work closely with clients, technical leads, and cross-functional teams to design and deliver scal...
Date Posted: 05/21/2026 Recommended
-
Senior Full Stack Developer
McLean, VA
Senior Full Stack Developer Remote We are seeking a Senior Full Stack Developer to support a federal cloud modernization and product development effort focused on scalable, secure, cloud-native applications hosted in AWS. This is a remote opportunity s...
Date Posted: 06/22/2026 Recommended
-
Payment Engineer
Tulsa, Oklahoma
Job Title: Application Developer Location: Tulsa, Oklahoma Work Model: Onsite Responsibilities Provide application support and maintenance for mobile payment platforms, ensuring system uptime and performance. Troubleshoot and resolve production inciden...
Date Posted: 06/11/2026 Recommended
-
Principal DevOps Engineer
Pittsburgh, PA
Principal DevOps Engineer Pittsburgh, PA (Onsite – 5 Days/Week), Strongsville/Cleveland, OH, Birmingham, AL, Pittsburgh, PA, Dallas/Farmers Branch, TX, Phoenix, AZ Contract Industry Banking / Financial Services Preferred Job Summary Seeking a highly ex...
Date Posted: 06/12/2026 Recommended
-
Sr. Software Architect
Pittsburgh , Pennsylvania
Job Title: Sr. Software Architect - Java Location: Pittsburgh, Pennsylvania, United States Responsibilities Lead the technical solution for the team's proofs-of-concept, prototypes and eventual end products or solutions. Team up with client stakeholder...
Date Posted: 06/29/2026 Recommended
-
ATM Consultant
Pittsburgh , Pennsylvania
Job Title: ATM Consultant Location: Pittsburgh, PA Type: Contract Contractor Work Model: Onsite – onsite Hours: 40.0 Security Clearance: Not specified Responsibilities Design complex solutions, write code, test code, automate testing and deployment. In...
Date Posted: 05/11/2026 Recommended
-
.NET Mainframe Developer
Vienna , VA
Job Title: .NET Developer Location: Remote Type: Contract Contractor Work Model: Remote Responsibilities Design, develop, and enhance complex software applications supporting mission-critical, time-sensitive initiatives focused on integrating distribut...
Date Posted: 05/06/2026 Recommended
-
Senior Data Dog Cloud Engineer (Observability)
Washington, DC
Senior Data Dog Cloud Engineer (Observability) Work location: Hybrid- 1* week in Washington, D.C. 20002 Type: Contract-to-hire Clearance: Must be able to obtain/maintain Public Trust Compensation: $63/HR What you’ll do (day-to-day) You’ll be the go-to ...
Date Posted: 06/17/2026 Recommended
-
Sr. Software Architect - Java
Dallas, Texas
Job Title: Sr. Software Architect - Java Location: Dallas, TX Responsibilities Lead the technical solution for the team's proofs-of-concept, prototypes and eventual end products or solutions. Team up with client stakeholders, third-party partners, fint...
Date Posted: 06/29/2026 Recommended
-
Adobe Workfront & Fusion Developer
Pittsburgh, Pennsylvania
Job Title: Adobe Workfront & Fusion Developer Location: Pittsburgh, Pennsylvania Type: Direct Hire Compensation: $0.00 Contractor Work Model: Onsite – onsite Hours: 40.0 Security Clearance: Not specified Overview Responsibilities Configure and maintain...
Date Posted: 06/04/2026 Recommended
-
UI Architect – .NET, React & Enterprise Banking Solutions
Kansas City , Kansas
Job Title: UI Architect – .NET, React & Enterprise Banking Solutions Location: Kansas City, Missouri Responsibilities Lead the architecture, design, development, and modernization of a large-scale SaaS platform built on .NET Core microservices with MS ...
Date Posted: 06/22/2026 Recommended
-
Sr, Quality Engineer - API/Kafka
Pittsburgh , Pennsylvania
Job Title: Sr, Quality Engineer - API/Kafka Location: Pittsburgh, PA/Cleveland, OH/Dallas, TX Responsibilities Design and develop high quality automated API tests for applications. Develop and manage software test plans, and traceability. Write high qu...
Date Posted: 06/25/2026 Recommended
-
Java Mainframe Developer
Vienna , VA
Job Title: Java Developer Location: Remote Type: Contract Responsibilities Design, develop, and enhance complex software applications supporting mission-critical, time-sensitive initiatives focused on integrating distributed applications with the organ...
Date Posted: 05/06/2026 Recommended
-
Senior IAM Engineer
Midvale , Utah
Job Title: Senior IAM Engineer (Java & Cloud Native) Location: Salt Lake City, Utah Work Mode : 5 Days Onsite Duration : Contract to Hire About the Opportunity System One is seeking a highly skilled Senior IAM Engineer to design, develop, and support m...
Date Posted: 06/04/2026 Recommended
-
Lead DevSecOps Engineer
Pittsburgh, Pennsylvania
Job Title: Lead DevSecOps Engineer Location: Pittsburgh, PA Responsibilities Lead the integration of security into CI/CD pipelines, architect secure cloud environments, and guide teams in adopting modern DevSecOps practices to ensure a secure-by-design...
Date Posted: 06/29/2026 Recommended
-
Lead DevSecOps Engineer
Strongsville, Ohio
Job Title: Lead DevSecOps Engineer Location: Strongsville, OH Type: Fulltime Responsibilities Lead the integration of security into CI/CD pipelines, architect secure cloud environments, and guide teams in adopting modern DevSecOps practices to ensure a...
Date Posted: 06/29/2026 Recommended
-
Lead DevSecOps Engineer
Dallas , Texas
Job Title: Lead DevSecOps Engineer Location: Dallas, Texas Responsibilities Lead the integration of security into CI/CD pipelines, architect secure cloud environments, and guide teams in adopting modern DevSecOps practices to ensure a secure-by-design ...
Date Posted: 06/29/2026 Recommended
-
Senior Java Full Stack Developer
Pittsburgh, Pennsylvania
Position Title: Senior Java Full Stack Developer Position Location - Pittsburgh, PA ; Duration – Direct Hire Employment Type – No C2C or third party vendors at this time Required qualifications to be successful in this role : 6+ years of strong hands-o...
Date Posted: 06/11/2026 Recommended
-
Quality Assurance Spec Sr
Pittsburgh, PA
Job Title: Quality Assurance Spec Sr Location: Pittsburgh, PA / Dallas, TX / Birmingham, AL Type: Contract Compensation: Contractor Work Model: Onsite – onsite Hours: 40.0 Security Clearance: Overview Leave placeholder text here for recruiter to input ...
Date Posted: 04/24/2026 Recommended
-
Java Developer - 100% REMOTE
Vienna, VA
Job Title: Java Developer Location: MUST BE LOCAL TO VIENNA, VA or WINCHESTER, VA or PENSACOLA, FL FOR FACE TO FACE INTERVIEW, THEN 100% REMOTE Type: Contract Compensation: Negotiable, W-2 or C2C Responsibilities Develop APIs using microservice archite...
Date Posted: 06/22/2026 Recommended
-
Java API Technical Lead
Dallas, Texas
Permanent Onsite Role Position Title: Java API Technical Lead Pittsburgh, PA, Cleveland, OH, or Dallas, TX Your future duties and responsibilities . Responsible to Lead and drive with the team with the client . Responsible for sound and high-quality te...
Date Posted: 06/29/2026 Recommended