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Senior IT Systems Engineer Jobs

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Senior Machine Learning System Engineer
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Join Atlassian's AI & ML Platform team as a Senior ML System Engineer. You will build core infrastructure for ML model lifecycle management, using Java/Kotlin, Python, and AWS. This remote US role offers a chance to impact millions of users while enjoying health benefits and paid volunteer time.
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United States , Seattle; San Francisco; New York; Austin
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165500.00 - 265800.00 USD / Year
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Atlassian
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Senior Principal Machine Learning Systems Engineer
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Lead the development of foundational AI infrastructure at Atlassian as a Senior Principal ML Engineer. You will design systems, train complex models, and integrate AI capabilities across products. Requires 10+ years of ML experience, expertise in Python/Java, and cloud data platforms. Based in Se...
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United States , Seattle; San Francisco; Austin
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243100.00 - 407200.00 USD / Year
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Atlassian
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Senior Security Software and System Engineer
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Join HPE's Cybersecurity Lab as a Senior Security Software and System Engineer in Aguadilla. You will design and implement security solutions, conduct penetration testing, and develop automation tools to enhance product and supply chain security. This role requires extensive experience in softwar...
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United States , Aguadilla
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Not provided
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Hewlett Packard Enterprise
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Senior Networking System Engineer
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Join Hewlett Packard Enterprise as a Senior Networking System Engineer in Dubai. This hybrid role requires 12+ years of experience, expert pre-sales support skills, and relevant certifications like ACMX/ACDX. You will design complex edge-to-cloud solutions, drive customer engagements, and mentor ...
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United Arab Emirates , Dubai
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Not provided
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Hewlett Packard Enterprise
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Senior Machine Learning Systems Engineer
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Join Atlassian in Bengaluru as a Senior Machine Learning Systems Engineer. Build core infrastructure to democratize ML/AI for products like Jira. Leverage your expertise in Java/Kotlin, AWS, and LLMs to develop scalable, high-performance systems. Enjoy health coverage, paid volunteer days, and we...
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India , Bengaluru
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Not provided
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Atlassian
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Senior Systems Engineer
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Join HPE Aruba Networking in Stockholm as a Senior Systems Engineer. Leverage your 3-6 years of presales expertise in complex networks, fluent Swedish/English, and deep Aruba technology knowledge. Drive portfolio strategy as a trusted technical advisor for public sector clients, with a focus on p...
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Sweden , Stockholm
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Not provided
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Hewlett Packard Enterprise
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Senior Security SW and System Engineer
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Join HPE's Cybersecurity Lab as a Senior Security SW and System Engineer in Aguadilla. Design and implement advanced security solutions, focusing on penetration testing, cryptographic validation, and automation. Leverage your 6-10 years of expertise in secure software architecture and a deep know...
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United States , Aguadilla
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Not provided
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Hewlett Packard Enterprise
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Senior Security Software And System Engineer
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Join HPE's Cybersecurity Lab as a Senior Security Software and System Engineer in Aguadilla. Design and implement advanced security solutions, focusing on penetration testing, cryptographic validation, and automation tools. Leverage your expertise in secure software architecture, network security...
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United States , Aguadilla
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Not provided
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Hewlett Packard Enterprise
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Senior System Support Engineer – High Performance Computing
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Seeking a Senior HPC System Support Engineer in Canberra. This role requires TSPV clearance and deep expertise in Linux, parallel file systems, and scripting (Python/C++). You will provide advanced on-site technical support, design solutions, and ensure optimal performance for complex High-Perfor...
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Australia , Canberra
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Not provided
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Hewlett Packard Enterprise
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Senior Presales, Systems Engineer
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Join HPE as a Senior Presales Systems Engineer in Gauteng. You will evangelize cutting-edge networking solutions, design technical proposals, and engage C-level executives. This role requires deep networking expertise, 5+ years of presales experience, and a willingness to travel. Enjoy a dynamic ...
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South Africa , Gauteng
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Not provided
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Hewlett Packard Enterprise
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Senior Security Software and System Engineer
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Join HPE's Cybersecurity Lab in Aguadilla, Puerto Rico, as a Senior Security Engineer. You will design and implement security solutions, conduct penetration testing, and develop automation tools. This role requires deep expertise in software architecture, cryptography, and security testing (e.g.,...
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Puerto Rico , Aguadilla
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Not provided
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Hewlett Packard Enterprise
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Senior Security Software and System Engineer
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Join HPE's Cybersecurity Lab in Aguadilla, Puerto Rico, as a Senior Security Engineer. You will design and implement security solutions, conduct penetration testing, and develop automation tools to enhance product and supply chain security. This role requires 6-10 years of experience in software ...
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Puerto Rico , Aguadilla
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Not provided
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Hewlett Packard Enterprise
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Senior Systems Engineer
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Join HPE Aruba Networking in Stockholm as a Senior Systems Engineer. Leverage your 3-6 years of presales expertise in complex enterprise networks, fluent in Swedish and English. Drive opportunities as a technical expert, build customer loyalty, and grow with Aruba certifications. Enjoy a comprehe...
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Sweden , Stockholm
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Not provided
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Hewlett Packard Enterprise
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Senior Pre-Sales System Engineer - Aruba
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Join HPE Aruba Networking as a Senior Pre-Sales System Engineer in Los Angeles. Leverage your 5+ years of networking expertise in routing, switching, and WiFi to design customer technology roadmaps. Provide technical leadership and support strategic sales with your knowledge of Aruba, Cisco, or J...
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United States , Los Angeles
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141000.00 - 332000.00 USD / Year
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Hewlett Packard Enterprise
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Senior System Development Engineer
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Join HPE Hybrid Cloud in Bangalore as a Senior System Development Engineer. You will develop system software in C/C++/Golang for the flagship Alletra object storage platform, powering AI use-cases. Tackle complex issues, collaborate cross-functionally, and mentor junior engineers in an inclusive ...
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India , Bangalore
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Not provided
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Hewlett Packard Enterprise
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Senior Systems Engineer - Network Automation
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Join IKEA's Connectivity Services team as a Senior Systems Engineer in Helsingborg or Älmhult. Drive network automation using Python and Ansible on a global scale. Design secure, automated solutions within a collaborative team, shaping IKEA's digital future.
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Sweden , Helsingborg; Älmhult
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Not provided
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IKEA
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Senior Information Systems Security Engineer
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Seeking a Senior ISSE with 20+ years' experience to lead security engineering for complex federal systems in Annapolis Junction. Must hold an active clearance, IASAE III compliance (CISSP/ISSEP), and expertise in the RMF. We offer top-tier medical/dental/vision, a 6% 401k match, and significant s...
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United States , Annapolis Junction
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Columbia Technology Partners
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Senior Systems Engineer
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Seeking a Senior Systems Engineer in Annapolis Junction to lead system design and development for complex programs. This role requires 14+ years of experience, a relevant degree, and an active Security Clearance with Polygraph. You will manage requirements, develop technical documentation, and se...
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United States , Annapolis Junction
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Not provided
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Columbia Technology Partners
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Senior Project Engineer – Aerospace Systems
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Lead the full lifecycle development of cutting-edge aerospace systems in Clearwater, FL. This senior role requires 7+ years of experience, expertise in DO-178/254 standards, and proficiency with requirements management tools. Drive technical proposals and new product development while enjoying co...
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United States , Clearwater, FL
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Not provided
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Robert Half
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Senior Linux System Administrator - Support Engineer
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Join our HPC support team in Canberra as a Senior Linux System Administrator. You will design, maintain, and optimize mission-critical Linux and HPC infrastructure, ensuring high availability and performance. Utilize your expertise in scripting, automation, and parallel file systems to provide ad...
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Australia , Canberra
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Not provided
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Hewlett Packard Enterprise
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Until further notice

About the Senior IT Systems Engineer role

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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