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Responsibility 2: Develop, configure, test, and support RESTful APIs, service integrations, messaging flows, data transformation logic, orchestration components, and interface services connecting legacy Java applications with cloud-native or microservices platforms. Requirement 3: Strong proficiency in Java, Spring Boot, RESTful APIs, microservices, and integration patterns, especially between Java applications and modern cloud-native platforms.

<p style="color: var(--silver); font-size: 20px">Every day, System One focuses on services and solutions that require a high degree of specialization, in-demand technical skills, and large-scale operational expertise. We are essential partners to those on the front lines of our nation’s most critical infrastructure, technology, and life sciences initiatives. </p>
<p style="color: var(--silver); font-size: 20px">Founded more than 40 years ago as a staffing partner to the engineering industry, today System One is a diversified organization operating in over 50 locations and putting more than 9,000 people to work in the United States, Canada, and the United Kingdom.</p>

System One

Application Integration Engineer

Develop automation solutions utilizing PowerShell and Microsoft Graph APIs; eliminate manual operational tasks through workflow automation. • Serve as a senior technical resource responsible for endpoint engineering, automation, platform modernization, and operational efficiency initiatives.

Modern Workplace Engineer

The ideal candidate will have experience supporting federal technology programs, working within Agile teams, and executing testing activities across complex application environments. This position focuses on functional, regression, API, security, and automated testing, along with defect management and continuous improvement of the end-to-end testing process.

Test Automation Engineer

Bachelor’s degree in Computer Science, Engineering, or related discipline with 4–8 years of relevant experience; or Master’s degree with 2–6 years of relevant experience. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.

DevSecOps Engineer

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Own product delivery timelines across all phases—concept, design, build, and service—while continuously improving reliability and performance.

Mechanical Engineer

The engineer will also leverage modern AI-assisted development and Microsoft Copilot capabilities to accelerate software delivery, improve code quality, automate routine engineering tasks, and help modernize existing solutions while maintaining appropriate security and governance. The successful candidate will build, deploy, automate, monitor, and support Azure-based integration solutions using services such as Azure Event Hubs, Azure Functions, Logic Apps, API Management, Service Bus, Key Vault, Storage, and Application Insights.

Azure Integration & DevOps Engineer

Bachelor’s degree in computer science, information systems, engineering, or a related technical field, and eight (8) or more years of progressive Windows Administration and engineering experience OR Master’s degree in a related field and at least 6 years of relevant experience in above areas. Familiarity with orchestration tools like Ansible, Chef, or Puppet for configuration management and ability to implement Continuous Integration/Continuous Deployment (CI/CD) pipelines for cloud infrastructure provisioning and deployment automation.?.

Senior Windows Systems Engineer

Main duties will be to serve as a front-end web focused resource for an Agile team participating in team meetings, writing Angular code to produce features to be delivered, unit testing code to ensure maintainability, and coordinating with other engineers for deployment. The Front-end engineer will support innovative member and team member experiences that leverage the latest technologies in open source and cloud technologies.

Frontend Engineer - Angular 19+

This individual will serve as a technical Subject Matter Expert (SME) for electrical engineering while leading and managing capital projects across multiple manufacturing and industrial facilities throughout the United States. Interface with senior leadership, operations teams, engineering consultants, and contractors regarding critical technical matters.

Senior Electrical Project Engineer

Deep practical knowledge of legacy Gen 2/Gen 3 Palo Alto hardware, including PA-3000 and PA-5000 series platforms, legacy CLI, hardware troubleshooting, and line-card replacements. Advanced understanding of BGP, OSPF, IPSec VPNs, NAT, TLS/SSL, mutual TLS (mTLS), HTTP, SAML, OAuth, OCSP revocation, DoD PKI, Kerberos, LDAP, and Active Directory.

Palo Alto Firewall Engineer

The engineer will work closely with End User Computing (EUC), Engineering, Infrastructure, Security, and Business stakeholders to transform traditionally installed applications into virtualized FlexApp packages that improve application delivery, reduce operational complexity, and support both Virtual Desktop Infrastructure (VDI) and physical Windows environments. We are seeking an experienced Software Packaging Engineer contractor to support our client’s EUC Software Delivery Enhancements Project, a strategic initiative focused on modernizing software packaging and application delivery across the enterprise.

Software Packaging Engineer

YEAR

Work closely with infrastructure, endpoint engineering, application, security, and operations teams to ensure software is packaged and deployed consistently across large scale enterprise environments. Create, test, troubleshoot, and maintain software packages used across Windows 10 and Windows 11 desktop environments, focusing on reliability, security, automation, and operational efficiency.

Desktop Packaging Engineer

Hands-on experience with UiPath architecture: Orchestrator, attended/unattended robots, assets and credential stores, queues, and robot host builds. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.

Security Engineer

The ideal candidate will possess advanced software engineering expertise, strong development skills, and the ability to mentor team members while contributing hands-on to complex technical initiatives. We are seeking an experienced Senior Software Engineer to provide technical leadership and drive the design, development, and delivery of mission-critical software solutions.

Senior Software Engineer C#

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Join our team and help build innovative software solutions that drive business success while advancing your career in a dynamic and collaborative environment.

Mid Level Software Engineer C#

This role bridges full-stack software development with automated security gates, enforcing compliance with DoDI 8430 (Accelerated Mission Software Development), the DoD Software Modernization Strategy, and Continuous Authorization to Operate (cATO) criteria. cATO & Governance Automation - Implement automated policy-as-code to satisfy continuous compliance gates under DoDI 8430 and OSD CIO cATO requirements (Real-time Visibility, Active Cyber Defense, Pipeline Attestation).

Sr DevSecOps Engineer

Bachelor's degree in Systems Engineering, Computer Science, Software Engineering, Electrical Engineering or a related STEM discipline and 8-12 years of prior relevant experience or a Master’s with 6-10 years of prior relevant experience. Lead system performance assessments, troubleshoot complex issues across applications, infrastructure, interfaces, networks, and data flows, identify and mitigate technical risks, and drive solutions that ensure system reliability, mission effectiveness, and operational performance.

Sr. Systems Engineer

The ideal candidate has strong full stack development experience, technical leadership capabilities, and experience building applications on Palantir Foundry or a comparable enterprise data platform. You will build user-facing applications, backend services, APIs, and data integrations while working directly with Army users and product designers.

Senior Software Engineer

As a member of this team your role will be a Software Development Engineer in Test (SDET) working in a Scrum environment, you will test software applications and features using test suites and scripts, perform anomaly reporting, software analysis, develop automated software test packages using various technologies, perform functional and performance testing. Experience with Test processes, open-source test frameworks, test design strategies, writing test cases, and automating tests in Java with frameworks like JUnit/TestNG, Selenium, JMeter and Appium.

Mid - Senior Level Software Development Engineer in Test

Decomposes functional and technical requirements into project activities and tasks and provides conceptual design, prototype, and test cycles appropriate to a chosen technical solution. • Works closely with Architects, Product Owners, Scrum Masters, and Value Stream Managers to provide insight into delivering business value and meeting objectives.

Task Manager Jobs in Virginia

Application Integration Engineer System One

Modern Workplace Engineer System One

Test Automation Engineer System One

DevSecOps Engineer System One

Mechanical Engineer System One

Azure Integration & DevOps Engineer System One

Senior Windows Systems Engineer System One

Frontend Engineer - Angular 19+ System One

Senior Electrical Project Engineer System One

Palo Alto Firewall Engineer System One

Software Packaging Engineer System One

Desktop Packaging Engineer System One

Security Engineer System One

Senior Software Engineer C# System One

Mid Level Software Engineer C# System One

Sr DevSecOps Engineer System One

Sr. Systems Engineer System One

Senior Software Engineer System One

Mid - Senior Level Software Development Engineer in Test System One

Lead Software Engineer System One

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