Sr. ServiceNow Developer - CSM System OneSr. ServiceNow Developer - CSMReston, VA$83.33 / hourThis role focuses on building and improving customer-facing solutions, Service Portals, integrations, and custom workflows within a complex ServiceNow environment serving large-scale user communities. We are seeking a Senior ServiceNow Developer with strong experience in Customer Service Management (CSM) to support the development and enhancement of enterprise ServiceNow applications.
NewSenior Network Engineer/IPv6 SME System OneSenior Network Engineer/IPv6 SMEAlexandria, VA$72.25–$87 / hourDesign, implement, and troubleshoot enterprise-scale IP networks, including enterprise routing, switching, and protocols such as BGP, OSPF/OSPFv3, EIGRP, IS-IS, IPv4/IPv6, DNS, DHCP/DHCPv6, ICMP/ICMPv6, TCP/IP, and SNMP. • Relevant certifications such as CCIE/CCNP, JNCIP/JNCIE, IPv6 credentials, Azure Netowrk Engineer, AWS Advanced Networking, CISSP, Security+, or equivalent are preferred.
Mid - Senior Level Software Development Engineer in Test System OneMid - Senior Level Software Development Engineer in TestMerrifield, VAAs 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.
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.
Network Engineer By Light Professional IT ServicesNetwork EngineerGermantown, MDThis role is responsible for system configurations, deployment strategy, developing and maintaining user documentation, developing and maintaining readiness checklist, monitoring system performance, and identifying and resolving technical issues to ensure high system uptime and security. Familiarity of telecommunications services, including secure and non-secure phone systems, VoIP, fax, data networks, video teleconferencing, and satellite (Iridium/Starlink) communications.
Software Packaging Engineer System OneSoftware Packaging EngineerMerrifield, VAThe 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.
Mobile Developer System OneMobile DeveloperMerrifield, VAMobile Developers are embedded within cross-functional Agile teams and play a critical role in delivering secure, reliable, and user-friendly digital experiences to millions of members. This role involves technical execution, platform advocacy, and collaboration across disciplines to ensure high-quality mobile solutions aligned with business goals and member needs.
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.
IT QA Engineer - SDET System OneIT QA Engineer - SDETMerrifield, VAYou will play a key role in building scalable automation frameworks, improving testing processes, and integrating AI-enabled capabilities to accelerate test creation, optimize regression testing, enhance defect analysis, and improve overall quality outcomes. The engineer will build automation frameworks, execute multiple types of testing, integrate testing into continuous delivery pipelines, and collaborate with engineering, product, and design teams to improve software quality.
IT Contracts Manager System OneIT Contracts ManagerMerrifield, VAThe individual will work closely with business units, procurement, legal counsel, and vendors to develop acquisition strategies, conduct cost analyses, negotiate terms and pricing, manage contract modifications, and provide guidance on contractual and risk-related matters. The position involves drafting, reviewing, negotiating, and administering contracts while ensuring favorable pricing, minimizing risk, and aligning vendor agreements with business objectives.
NewMid-Level Backend Software Engineer System OneMid-Level Backend Software EngineerGaithersburg, MD$60–$80 / hourRequirements Bachelor’s degree in Computer Science, Software Engineering, or a related field with 4–8 years of experience; or a Master’s degree with 2–6 years of experience. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
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.
Senior Software Engineer System OneSenior Software EngineerFort Belvoir, VAThe 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.
Application Integration Engineer System OneApplication Integration EngineerMcLean, VA$130,000 / hourResponsibility 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.
NewFullstack Developer System OneFullstack DeveloperNew Carrollton, MD$87,000 / hourPrevious experience supporting IRS or other federal technology programs System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. • Strong written and verbal communication skills, including the ability to work with client stakeholders across technical and organizational levels Preferred Qualifications.
Cyber Security Analyst By Light Professional IT ServicesCyber Security AnalystFort Meade, MD$130,000–$155,000 / yearProvide enterprise-wide cybersecurity, threat analysis, countermeasures and defensive strategies across a multi-tiered, porous domain inclusive of Cloud, federated regional gateways, cross domain peering points, internet access points, and endpoints. When extending an offer, By Light also considers other variables such as (but not limited to) work experience, education, training, skill set, internal peer equity, clearance level, and market conditions.
IT Tester System OneIT TesterMerrifield, VA$50–$64 / hourEnsure clear, concise, and effective communication including progress reports, test case or plan documentation, root-cause defect reporting, risks, blockers, etc., to facilitate accurate understanding of testing activities. • Provide detailed documentation of defects/bugs, follow established defect/bug lifecycle procedures and policies to ensure test case evidence of successful resolution without collateral impacts.
Senior Software Simulation Engineer By Light Professional IT ServicesSenior Software Simulation EngineerChantilly, VAVeraxx has a high level of expertise in flight simulation hardware and software development, as well as computer architecture, tactical environments, interoperability (HLA/DIS), avionics systems, graphics and real-time embedded systems. Candidate will have the opportunity to work on a variety of flight simulators and develop/integrate software in areas such as avionics, tactical environments, interfaces to audio, visual, motion, and I/O systems, and Instructor Operator Stations (IOS).
NewSenior Salesforce Developer System OneSenior Salesforce DeveloperWashington, DCRemote$185,000 / hourTypical Salesforce implementations include custom platform development (Apex, Visualforce, Lightning Components), integrations with back office systems (often through the use of middle-ware tools including REST APIs and web services) and complex data migrations. • Post-delivery: work with client teams in supporting the live application and perform hand-off and knowledge transfer activities, positioning our clients for long term success.
Mid Backend Java Developer System OneMid Backend Java DeveloperMerrifield, VAYou'll work alongside Engineering, Architecture, Security, and Products teams to identify technical opportunities, reduce technical debt, and ensure we're making sound technical decisions today that won't become tomorrow's problems. This isn't a traditional software engineering role; it's an opportunity to influence the technical direction of our Digital Banking platform by helping engineering teams build solutions that are scalable, secure, resilient, and built to last.