NewSenior AWS Full Stack Engineer System OneSenior AWS Full Stack EngineerReston, VA$108,000 / yearThe engineer will work across application layers, contribute to technical decisions, translate business requirements into working solutions, and help improve development efficiency through modern engineering and AI assisted practices. The ideal candidate brings strong full stack development experience, solid AWS knowledge, and practical experience using AI/Generative AI tools as part of the software development lifecycle.
NewSr Network Engineer System OneSr Network EngineerWashington, DCProvide senior-level network engineering support, including advanced data and VoIP design, upgrades, troubleshooting, and Level 3 operational support for campus and wide area networks. • Extensive experience with Cisco routers and switches, Cisco IOS routing protocols (EIGRP, RIP, BGP, IBGP, OSPF), TCP/IP, IEEE 802.x Ethernet, IPSec, and Wireless networking.
NewSr. Cybersecurity Analyst VisaSr. Cybersecurity AnalystAshburn, VA$131,600–$210,300 / yearVisa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. If you would like to join a company where security is truly valued, where you can work with like-minded peers who are passionate about the art & science of cyber defense, and where you can use state of the art tools for maximum impact, then we have a home for you.
NewCyber Security Analyst - Sr. Consultant level VisaCyber Security Analyst - Sr. Consultant levelAshburn, VA$152,200–$243,700 / yearVisa is a world leader in payments technology, facilitating transactions between consumers, merchants, financial institutions and government entities across more than 200 countries and territories, dedicated to uplifting everyone, everywhere by being the best way to pay and be paid. If you would like to join a company where security is truly valued, where you can work with like-minded peers who are passionate about the art & science of cyber defense, and where you can use state of the art tools for maximum impact, then we have a home for you.
NewSenior Electronic and Optical Materials Device Fabrication Engineer Johns Hopkins Applied Physics Laboratory (APL)Senior Electronic and Optical Materials Device Fabrication EngineerLaurel, MDBuild and maintain version-controlled GDS/layout databases with Python-based automation for parametric layout generation, fracturing, and design rule checking, and develop data-analysis pipelines linking design, fabrication, and metrology data for CD, overlay, and yield trends. The role is predominantly fabrication-focused, with a majority of working hours spent in a cleanroom or laboratory environment, including the cleanroom at JHU-APL in Laurel, MD and other multi-user facilities within a 20 min to 1 hr drive.
Senior FACETS Business Systems Analyst CYNET SYSTEMSSenior FACETS Business Systems AnalystWashington, DC$65–$70 / hourTemporaryContractorPart timeThe ideal candidate will possess strong functional and technical knowledge of FACETS Membership processes, backend data models, batch operations, advanced SQL analysis, and healthcare BPM workflows while partnering with business stakeholders, technology teams, operational leaders, and BPM teams to deliver high-impact solutions. The organization is seeking an experienced Business Systems Analyst (BSA) - Membership with deep expertise in the TriZetto FACETS Membership platform, including Enrollment and Billing operations within a Healthcare Payer and BPM (Business Process Management) environment.
NewSr Electrical Engineer (Secret Clearance) System OneSr Electrical Engineer (Secret Clearance)Chantilly, VA$110,000–$170,000 / year10+ years of experience in design and specification of: lighting systems, power systems, fire alarm systems, telecom/data systems, medium voltage power systems, UPS systems, emergency generator systems, grounding systems, and utility systems. System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America.
Senior GenAI & Data Engineer System OneSenior GenAI & Data EngineerReston, VA$85,000–$110,000 / yearStrong data engineering expertise, including developing data pipelines, data models, and processing large-scale data. Leverage AWS services such as Amazon Bedrock, AWS Lambda, AWS Glue, and AWS Step Functions for cloud-native development.
NewSenior 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.
NewSenior OpenShift/Kubernetes GitOps and CI/CD Engineer System OneSenior OpenShift/Kubernetes GitOps and CI/CD EngineerWashington, DCRemote$77–$90 / hourDesign and implement container image build workflows using Buildah or another appropriate OpenShift-compatible build technology, including image provenance and immutable image identification. Integrate ACS into the software supply chain and implement security policy gates, including blocking critical and high vulnerability images from promotion unless approved.
NewSenior 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.
NewSenior Full Stack Engineer System OneSenior Full Stack EngineerReston, VADevelop and execute end-to-end performance tests, analyze application behavior, and identify bottlenecks across integrated systems, microservices, databases, and AWS services. Ability to establish performance baselines, analyze test results and application metrics, implement or recommend remediation, and retest to demonstrate improvement.
NewSenior 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.
Sr. Software Developer System OneSr. Software DeveloperGaithersburg, MDThe Senior Software Engineer will work closely with product owners, architects, Scrum Masters, DevSecOps teams, and fellow developers to deliver secure, scalable, and maintainable software solutions. • Bachelor’s degree in Computer Science, Software Engineering, or a related field with 8 to 12 years of relevant experience, or a master’s degree with 6 to 10 years of relevant experience.
Senior Infrastructure Automation Engineer System OneSenior Infrastructure Automation EngineerWashington, DCRemote$78.25–$95 / hourThe SEC environment is expanding automation from an existing baseline and establishing a repeatable model that technical teams can use to automate infrastructure configuration, software and agent deployment, patching, operational procedures, and approved remediation without creating unnecessary dependencies on a single infrastructure team. System One IT has a remote, 12 month+ contract opening for a Senior Infrastructure Automation Engineer to support our client with their SEC ISS2 contract by architecting, engineering, and building an enterprise infrastructure and operations automation capability centered on Red Hat Ansible Automation Platform and Ansible.
Senior 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.
NewSenior AFSIM Analyst Johns Hopkins Applied Physics Laboratory (APL)Senior AFSIM AnalystLaurel, MDCollaborate with our software development teams on improving our customized tools, including designing efficient representations for large datasets, testing accurate interactions across interdependent algorithms, and automating production analysis pipelines. APL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development.
NewSenior Air-to-Air Modeling and Simulation Analyst Johns Hopkins Applied Physics Laboratory (APL)Senior Air-to-Air Modeling and Simulation AnalystLaurel, MDAPL provides eligible staff with a comprehensive benefits package including retirement plans, paid time off, medical, dental, vision, life insurance, short-term disability, long-term disability, flexible spending accounts, education assistance, and training and development. Develop, evaluate, and analyze tactics and concepts of employment for ground breaking technologies such as air platforms, sensors, countermeasures, and weapons including manned-unmanned vehicles.
NewSenior Scientist, Bioproduction and Bioprocessing MaxCyte, IncSenior Scientist, Bioproduction and BioprocessingRockville, MDThe Senior Scientist, Bioproduction & Bioprocessing is responsible for leading the development, optimization, and execution of mammalian cell-based protein production workflows to support organizational research, development, and manufacturing needs. This role provides subject-matter expertise in cell line development, transient expression, and upstream bioprocessing, and ensures high-quality delivery of materials through collaboration with cross-functional teams.
ELECTRIC POWER GENERATION (EPG) APPLICATIONS ENGINEERING MANAGER Carter Machinery Company, IncELECTRIC POWER GENERATION (EPG) APPLICATIONS ENGINEERING MANAGERManassas, VA$130,000–$170,000 / yearCollaborate closely with Project Management, Packaging, Service, and Commissioning teams to resolve technical issues and prevent downstream rework. Provide technical leadership and final approval for complex and mission‑critical EPG applications, reinforcing Application Engineers as trusted customer and sales partners.