Technical Systems Analyst System OneTechnical Systems AnalystArlington, VA$75–$80 / hourThe ideal candidate goes beyond requirements documentation and can effectively understand business challenges, develop technical solutions, collaborate with engineering teams, and support delivery through testing, validation, and deployment. This role serves as the key liaison between business stakeholders and technical delivery teams, translating business objectives into actionable technical requirements and ensuring successful delivery of data-driven solutions.
Concur Design Build Test Consultant System OneConcur Design Build Test ConsultantHerndon, VA$75–$80 / hourDesign and support a SaaS Travel & Expense ecosystem including Concur, reporting, API integrations with finance and HR systems, Duty of Care, mid office travel tools, and corporate card providers. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
NewJava Backend Engineer - Onsite Interview required System OneJava Backend Engineer - Onsite Interview requiredVienna, VA$70–$80 / hourSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. Design, build, integrate, and maintain secure backend services and APIs supporting mobile, web, enterprise, and partner systems.
Senior Enterprise Data Privacy Analyst System OneSenior Enterprise Data Privacy AnalystMerrifield, VAThe ideal candidate has hands-on experience standing up or enhancing privacy programs in the second line of defense at highly regulated financial environments and can operate strategically while also delivering practical implementation artifacts. The contractor will support the maturation of the organization’s privacy framework, governance processes, privacy risk management capabilities, regulatory compliance obligations, third?party privacy oversight, Privacy Impact Assessment (PIA)/Privacy Risk Assessment (PRA) programs, and privacy reviews of Artificial Intelligence initiatives.
NOC Technician- Tier 3 System OneNOC Technician- Tier 3Washington, DC$110,000–$120,000 / yearREQUIREMENTS Bachelor’s degree in Computer Science, Information Technology, Network Engineering, or related field from an accredited college or university, OR equivalent experience. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
NewApplication Cloud Engineer System OneApplication Cloud EngineerHerndon, VARemoteKubectl proficiency and general Kubernetes object management (deployments, services, configmaps, secrets, RBAC). System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
NewWindows Infrastructure Engineer/Architect System OneWindows Infrastructure Engineer/ArchitectWashington, DCRemote$63–$75 / hourBachelor’s degree in computer science, information systems, engineering, or a related technical field, and eight (8) or more years of progressive Windows Infrastructure Engineer/Architect experience OR Master’s degree in a related field and at least 6 years of relevant experience in above areas. They will be responsible for architecting robust identity solutions, managing our Enterprise Public Key Infrastructure (PKI), and providing high-level tier -3 architectural support to ensure optimal security, compliance, and system availability across our hybrid environment.
Lead AWS Cloud Platform Engineer - IaC / SRE – Preferred TriZetto Facets / Healthcare System OneLead AWS Cloud Platform Engineer - IaC / SRE – Preferred TriZetto Facets / HealthcareReston, VARemote$109.05 / hourThe ideal candidate has a strong background supporting production AWS environments, provisioning infrastructure through code, resolving complex operational issues, and partnering with application teams to deliver secure, scalable, and reliable cloud solutions. This is a hands-on role focused on AWS infrastructure provisioning, production support, troubleshooting, and migration of on-premise applications into AWS and Amazon EKS environments.
Senior AWS Full Stack Software Engineer System OneSenior AWS Full Stack Software EngineerReston, VA$108,500 / yearExperience working with Large Language Models (LLMs), LLM APIs, and agentic or agent-based workflows. • Experience applying AI to software engineering activities such as code generation, unit testing, test automation, and code reviews.
Legacy .NET Developer System OneLegacy .NET DeveloperVienna, VAFacilitate user acceptance testing to include developing and executing test cases, test criteria, scenarios, and communication with project teams; ensure acceptance of delivered solutions; validate and document results. • Partner with project teams to plan, coordinate and roll out software change/release to Controlled Testing and Production; obtain required approvals and transition project to production.
Lead .Net Developer (Secret clearance) System OneLead .Net Developer (Secret clearance)Reston, VAExperience as a developer in a software environment that supported more than 10,000 users and a Relational Database Management Systems (RDBMS) with more than 250 tables and 1 million total rows. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
Cloud Engineer - Secret Clearance Required System OneCloud Engineer - Secret Clearance RequiredWashington, DC$90–$110 / hourBuild Landing Zone including AWS Organizations, SCPs, account vending, KMS, monitoring stack, and Infrastructure as Code (IaC). System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
NewLead Software Engineer System OneLead Software EngineerReston, VA$88.64 / hourDecomposes 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.
Senior Application Developer (AWS/Python) onsite System OneSenior Application Developer (AWS/Python) onsiteWashington, DCSystem One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. • Implement comprehensive logging, monitoring, and audit trails (CloudWatch, CloudTrail).
NewSoftware Developer System OneSoftware DeveloperWashington, DC$140,000–$180,000 / yearThis role will work as part of the Sales Engineering team and engage directly with customers on-site, in a hybrid format, or remotely, as required by each customer, including the potential for occasional short-term travel to customer locations across the United States. Successful Software Developer's demonstrate competency in integrating advanced technologies into existing business processes, building new functionality, ensuring successful software deployments, and working closely with customers.
Senior Software Engineer C# System OneSenior Software Engineer C#Merrifield, VA$105,000–$120,000 / yearThe 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.
Desktop Packaging Engineer System OneDesktop Packaging EngineerReston, VA$99,000 / yearWork 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.
Azure Integration & DevOps Engineer System OneAzure Integration & DevOps EngineerArlington, VA$90 / hourThe 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.
NewSenior Windows Systems Engineer System OneSenior Windows Systems EngineerWashington, DC$63–$75 / hourBachelor’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.?.
AWS Cloud Security Architect System OneAWS Cloud Security ArchitectReston, VA$156,300 / yearProvide security architecture guidance for enterprise applications, AWS cloud environments, hybrid infrastructure, cybersecurity platforms, APIs, containers, data solutions, and AI enabled applications. Support secure AI/GenAI adoption, including LLM integrations, RAG implementations, prompt security, data protection, access controls, monitoring, logging, and human in the loop safeguards.