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Senior IT Systems Engineer Jobs

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Senior Software Engineer II - NLP / Backend Systems
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Join our NLP/Algorithms team as a Senior Software Engineer II in California. You will design and scale backend systems for legal analytics using Python, SQL, and cloud platforms. This role focuses on data engineering, NLP pipelines, and infrastructure for high-quality legal data. We offer compreh...
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United States , California
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93400.00 - 155700.00 USD / Year
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myGwork - LGBTQ+ Business Community
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Senior Software Engineer - Systems
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Join our Product team in Hobart or Sydney as a Senior Software Engineer - Systems. Develop the core C++ systems powering Procreate Dreams, focusing on animation, audio, and real-time performance. We seek an expert in multi-threaded concurrency, CPU optimization, and library development. Visa supp...
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Australia , Hobart; Sydney
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Not provided
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Procreate
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Senior Systems Engineer
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Lead complex control systems and automation projects in Water, Transport, and Rail from North Sydney. This senior role requires strong Siemens TIA Portal PLC expertise and leadership to mentor a technical team. Deliver innovative engineering solutions within budget and schedule, supported by care...
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Australia , North Sydney
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SAGE Automation
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Senior Systems Engineer
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Lead complex automation and control systems projects in Sydney's water/utilities sector. This senior role requires advanced electrical engineering design, delivery expertise, and leadership to mentor a technical team. Utilize your skills with PLC/SCADA systems like Siemens TIA or Schneider. Enjoy...
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Australia , North Sydney
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SAGE Automation
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Senior / Lead Linux Systems Engineer
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Seeking a Senior/Lead Linux Systems Engineer in Santa Monica to architect and maintain high-availability, 24/7 platforms. You will manage LAMP & J2EE stacks on RHEL/Oracle Linux within VMware, using tools like Puppet or Chef. Ideal candidates have 7+ years of enterprise IT experience and expertis...
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United States , Santa Monica
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80000.00 - 90000.00 USD / Year
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SAR Tech
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Senior Wireless Communication Systems Engineer
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Join Silvus Technologies in Los Angeles as a Senior Wireless Communication Systems Engineer. You will lead the full development cycle of advanced wireless systems, from design to field testing. This role requires an MS/PhD, 4+ years of experience, and expertise in MIMO, OFDM, and MATLAB. U.S. Cit...
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United States , Los Angeles
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140000.00 - 200000.00 USD / Year
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Silvus Technologies (International)
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Senior Defensive Security Engineer – Embedded Systems
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Join Silvus in Los Angeles as a Senior Defensive Security Engineer for Embedded Systems. You will design robust Linux security architectures, conduct assessments, and ensure compliance for critical systems. This role requires a U.S. Person with an active SECRET clearance, 5+ years in cybersecurit...
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United States , Los Angeles
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140000.00 - 200000.00 USD / Year
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Silvus Technologies (International)
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Senior Wireless Systems Performance Engineer
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Join Skydio in San Mateo as a Senior Wireless Systems Performance Engineer. You will optimize wireless solutions, drive OTA testing, and enhance network KPIs in congested environments. The role requires expertise in WLAN/3GPP protocols, test automation, and cross-team collaboration. We offer equi...
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United States , San Mateo
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170000.00 - 240000.00 USD / Year
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Skydio
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Senior Systems Integration and Test Engineer
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Join STR to advance National Defense capabilities as a Senior Systems Integration and Test Engineer. This role in Woburn requires an active DoD Secret clearance, a technical degree, and 5+ years' experience with Java, C/C++, or Python. You'll design test environments, execute hands-on integration...
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United States , Woburn
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134000.00 - 184000.00 USD / Year
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STR
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Senior Systems Engineer
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Seeking a Senior Systems Engineer for a pivotal role in Fort Meade. This position requires a TS/SCI clearance with Full Scope Poly and 20+ years of experience in complex hardware/software systems. You will provide technical leadership, guide system integration, and develop critical engineering do...
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United States , Fort Meade
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195000.00 - 225000.00 USD / Year
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Tenth Mountain
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Senior System Engineer
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Join Alter Domus in Chicago as a Senior System Engineer, specializing in Microsoft 365. You will manage Exchange, Intune, SharePoint, and Defender to enhance security and productivity. This role requires 6+ years of IT experience, strong communication skills, and expertise in the Microsoft ecosys...
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United States , Chicago
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80000.00 - 115000.00 USD / Year
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Alter Domus
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Senior System Engineer
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Join Alter Domus in London as a Senior System Engineer (Microsoft 365 Specialist). You will manage our global M365 environment, focusing on security, Intune, Defender XDR, and automation. This role requires deep technical expertise, strong troubleshooting skills, and offers excellent benefits and...
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United Kingdom , London
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Alter Domus
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Senior SIGINT Systems Engineer
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Arcfield seeks a Senior SIGINT Systems Engineer in Chantilly to guide evolving programs through Agile, Cloud, AI/ML, and DevOps. This role requires an active TS/SCI with Poly and 8-12+ years of experience in systems engineering. You will develop architecture, translate requirements, and evaluate ...
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United States , Chantilly
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Arcfield
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MBSE Indications and Warning Senior Systems Engineer
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Seeking a Senior MBSE Systems Engineer with a TS/SCI clearance & OCSMP certification. Provide model-based engineering support for critical Indications & Warning (I&W) and Space Protection systems. Apply digital engineering across full lifecycle acquisition in Chantilly. Ideal candidate has space/...
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United States , Chantilly
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Arcfield
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Senior Embedded Systems Engineer
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Join our Berlin team as a Senior Embedded Systems Engineer. Develop hardware and firmware for medical wearables using Zephyr RTOS, Embedded Linux, and BLE. We seek an expert in C programming, PCB design, and hardware debugging with 7+ years of experience. Enjoy a dynamic startup culture, team eve...
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Germany , Berlin
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AssistMe
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Senior System Information Assurance and Security Engineer
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Join Barbaricum in Tampa as a Senior ICAM Security Engineer. You will lead the design and integration of next-generation Identity, Credential, and Access Management (ICAM) for USSOCOM's Zero Trust implementation. This role requires an active TS/SCI clearance and deep expertise in DoD cybersecurit...
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United States , Tampa
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Barbaricum
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Senior System Security and Information Assurance Engineer
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Seeking a Senior PAM Engineer in Tampa to deploy and operationalize a critical enterprise Privileged Access Management solution. This role requires a Top Secret/SCI clearance and expertise in Zero Standing Privilege, JIT access, and integration with SIEM/IGA platforms. You will lead technical imp...
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United States , Tampa
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Barbaricum
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Senior Systems Engineer
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Join Barbaricum in supporting the DoD's Chief Digital and AI Office (CDAO) as a Senior Systems Engineer. This role in Falls Church is pivotal for advancing AI/ML and data initiatives, requiring an active Secret Clearance and expertise in Systems Engineering, Python, and network design. You will p...
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United States , Falls Church
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Barbaricum
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Senior IT Systems Integration Engineer
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Join our team as a Senior IT Systems Integration Engineer in Thornhill. Design and implement robust APIs and middleware solutions using platforms like MuleSoft. Leverage your expertise in Python, Java, and cloud services (AWS/Azure) to ensure seamless enterprise system interoperability.
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Canada , Thornhill
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Randstad
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Senior Imaging Systems Engineer
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Lead the design and validation of cutting-edge security camera systems in Boston. This senior role requires deep expertise in CMOS sensors, optical design, and ISP tuning to deliver unparalleled image quality. Join a mission-driven team offering a comprehensive benefits package and the chance to ...
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United States , Boston
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105600.00 - 154900.00 USD / Year
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SimpliSafe
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Are you a seasoned technical expert seeking to architect, build, and maintain the critical infrastructure that powers modern enterprises? Explore senior IT systems engineer jobs, where your deep expertise becomes the backbone of organizational resilience and innovation. This senior-level role is the pinnacle of systems engineering, demanding a strategic mindset, profound technical knowledge, and leadership capabilities to design and oversee complex, integrated systems that meet rigorous business and technical demands. Senior IT Systems Engineers are the master architects and custodians of an organization's core technology environment. They move beyond routine maintenance to engage in high-level design, strategic planning, and solving the most challenging technical problems. A typical day involves designing robust system architectures, automating processes for scale and efficiency, and ensuring the highest levels of security, availability, and performance. They serve as the technical authority, guiding projects from conception through to implementation and commissioning, often acting as the crucial bridge between business objectives and technical execution. Common responsibilities in these senior roles are comprehensive and impactful. Professionals typically lead the design and implementation of critical systems, which can include server infrastructure, cloud platforms, network architectures, or specialized industrial control and automation systems. They develop and enforce standards, create detailed documentation, and establish governance models. A significant part of the role involves mentoring junior engineers, providing technical leadership to cross-functional teams, and collaborating with stakeholders to translate requirements into reliable technical solutions. They are also responsible for capacity planning, disaster recovery strategies, root-cause analysis for major incidents, and driving continuous improvement initiatives to optimize system performance and reduce operational overhead. The skill set required for senior IT systems engineer jobs is both broad and deep. Typically, employers seek candidates with a bachelor's degree in computer science, engineering, or a related field, coupled with 8-15 years of progressive hands-on experience. Expertise in core technologies is a given—this may include advanced proficiency in operating systems (Linux/Windows), virtualization (VMware, Hyper-V), cloud services (AWS, Azure, GCP), networking, scripting and automation (Python, PowerShell, Ansible, Terraform), and often specialized knowledge in areas like PLC/SCADA for industrial roles or specific security frameworks. Beyond technical prowess, exceptional problem-solving, analytical thinking, and communication skills are paramount. Senior engineers must articulate complex concepts to non-technical audiences, manage multiple priorities, lead by influence, and proactively research emerging technologies to guide future strategy. If you are ready to take ownership of enterprise-scale systems and provide the technical vision that drives business success, exploring senior IT systems engineer jobs is your next strategic career move.

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