Systems Engineer
$125k - $163kEnsono
About the role and what you’ll be doing The AIX Expert System Engineer is a senior technical authority responsible for the architecture, engineering, optimization, and strategic evolution of IBM AIX and Power Systems environments. This role serves as the highest level of technical expertise, owning complex platform decisions, large‑scale migrations, performance engineering, automation, and resiliency design for business‑critical workloads. Responsibilities Platform Architecture & Engineering Act as technical owner and subject‑matter expert (SME) for IBM AIX and Power Systems platforms Design, architect, and standardize enterprise‑scale AIX and pSeries environments Define and maintain architecture standards, build patterns, and best practices Provide expert guidance for capacity planning, scalability, and platform modernization Review and approve complex designs related to compute, storage, virtualization, and networking IBM Power & Virtualization Expertise Deep expertise in PowerVM, VIOS, and advanced AIX virtualization Architect and manage HMC environments (v9 & v10) Architecture and management of Power8, Power9, and Power10 systems Manage DLPAR, LPM, NPIV, virtual networking, virtual storage, SR‑IOV, vNIC adapters Lead VIOS architecture, build, upgrade, and high‑availability design Perform pSeries hardware commissioning, refresh, and consolidation projects Lifecycle Management & Migrations Lead AIX OS lifecycle management, including upgrades, patching, and kernel tuning Architect and execute AIX OS migrations (6.1 → 7.1 → 7.2 → 7.3) Manage hardware refresh and data center migrations Lead storage and SAN migrations Own and optimize NIM (Network Installation Manager) design and usage Design zero‑downtime or minimal‑impact migration strategies Performance, Reliability & Resilience Perform advanced performance analysis, workload optimization, and tuning Design high availability, fault tolerance, and resiliency models Define and govern Disaster Recovery (DR) and Business Continuity (BC) strategies Analyze platform risks and implement proactive mitigations Define monitoring standards and performance KPIs Incident, RCA & Problem Management Act as final escalation authority for critical and recurring AIX incidents Lead Major Incident Management (MIM) and complex RCA investigations Perform trend analysis, identify systemic issues, and drive long‑term fixes Coordinate with IBM and hardware/storage vendors for deep technical resolutions Automation & Continuous Improvement Drive automation‑first strategy for AIX operations Develop and review Shell, Perl, and Python automation frameworks Integrate automation with Ansible or enterprise orchestration tools Reduce manual effort, improve consistency, and enhance platform reliability Governance, Documentation & Compliance Ensure adherence to ITIL, security, audit, and compliance requirements Define technical governance and change standards for the AIX platform Author and maintain architecture documents, SOPs, runbooks, and KB articles Support audits and ensure platform compliance with enterprise policies Leadership, Consulting & Mentoring Provide expert consultation to stakeholders, architects, and senior leadership Mentor and technically guide L3 engineers and system architects Support complex client engagements, audits, and transformation programs Communicate complex technical concepts to non‑technical audiences Required Skills & Experience 12–15+ years of hands‑on experience in IBM AIX and Power Systems Expert‑level knowledge of AIX OS administration and kernel internals PowerVM, VIOS, and HMC expertise pSeries architecture mastery Strong expertise in SAN storage, HA, DR, and enterprise networking Proven experience leading large‑scale migrations and transformations Advanced shell scripting and automation skills Excellent troubleshooting and analytical capabilities Preferred Qualifications IBM Certifications in AIX System Administration, Power Systems/pSeries Hardware, Performance Tuning, and Network Administration Experience in mission‑critical, regulated, or global enterprise environments Exposure to hybrid cloud or IBM Power on Cloud architectures Professional Attributes Strategic thinker with strong technical depth Calm and decisive during critical outages Excellent communication and documentation skills Strong ownership mindset with attention to detail Collaborative leader and trusted technical advisor Comfortable working in rotational on‑call models when required Benefits Unlimited Paid Days Off Three health plan options 401(k) with company match Eligibility for dental, vision, short and long‑term disability, life and AD&D coverage, and flexible spending accounts Family Forming Benefit including fertility coverage and adoption/surrogacy reimbursement Paid childbearing and paternal leave Education Reimbursement, Student Loan Assistance or 529 College Funding Sabbatical leave Wellness program Flexible work schedule Compensation Estimated pay for this role is $125,000 to $163,000 annually based on a full‑time schedule. Base salary and additional compensation such as an annual bonus plan and equity grant are subject to eligibility and business needs. Equal Opportunity Employer Ensono is an Equal Opportunity/Affirmative Action employer. We are committed to providing equal employment to our Associates and building a diverse and inclusive workforce. All qualified applicants will be considered without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability, or other legally protected basis, in accordance with applicable law. Pay Transparency Statement Pay transparency nondiscrimination statement/posting OFCCP’s pay transparency policy can be found on OFCCP’s website ( Accessibility If you need accommodation at any point during the application or interview process, please contact your recruiter or email View email address on click.appcast.io. JR013758 #J-18808-Ljbffr
$150k - $300k
Hudson River Trading (HRT) is looking for Systems Engineers to join our growing Research & Development team. This team builds and maintains exceptionally large and growing distributed compute clusters, multi petabyte-scale storage layers, operating systems, automation software...SuggestedFull timeWork at officeLocal areaImmediate startRemote workWorldwide$111.1k - $170.3k
Payment Systems EngineerLocation: Lincolnshire, IL (Hybrid) 3 Days On-siteEmployment Type: Full-TimeExperience: 5-10 YearsAbout the RoleWe... ..., mobile, kiosk, and call center channels.As a Payment Systems Engineer, you’ll play a key role in designing, building, and scaling...SuggestedFull timePart timeLocal area$95.93k - $110k
...computer clusters/servers and software. Day-to-day operations of the systems including systems administration, monitoring and storage... ...Experience:Bachelor’s degree in Computer Science, Electronics Engineering or closely related field plus 5 years of progressive...SuggestedFull timeContract workWork at officeLocal area$85k - $125k
...how we do it. DRW is a place of high expectations, integrity, innovation and a willingness to challenge consensus.As a Trade Systems Engineer, you’ll have the opportunity to learn and grow while supporting our trading technology. You’ll work closely with trading, infrastructure...SuggestedPermanent employmentTemporary workInternshipMonday to FridayFlexible hoursShift workWeekend workDay shift$99k - $121k
...Early Warning, we’ve powered and protected the U.S. financial system for over thirty years with cutting-edge solutions like Zelle, Paze... ...for employment Visa sponsorship.Overall Purpose This role engineers and supports privileged and non-human identity controls across...SuggestedHourly payFull timeImmediate startVisa sponsorshipWork visaFlexible hours$150k - $300k
Hudson River Trading (HRT) is looking for GPU Systems Engineers to help scale and evolve our exceptionally sophisticated HPC/AI research environment. Joining our Research and Development team, you will collaborate with experts responsible for the compute, storage, operating...Work at officeLocal areaImmediate start$105.4k - $124k
...career. Try new things, learn new skills and discover what you excel at—all from Day One.Job DescriptionU.S. Bank is seeking a z/OS Systems Programmer that has extensive experience in mainframe technologies with an emphasis on installation/upgrading, tuning, and...Full timeWork experience placementLocal area3 days per week$115k - $135k
...Innovation) Team. This position is a hands-on cloud and platform engineering role with a strong focus on AI-enabled platforms, GitHub-based... ...workloads, primarily within Microsoft Azure.The CCSI Systems Senior Engineer is a full-time role located in Southfield, MI,...Full timeWork at officeRemote workRelocation packageMonday to Friday$120k - $140k
...world leader in the field of professional mobile communications systems with an impressive heritage of technological innovations and a... ....The upgrade team comprises Project Management, System Engineering and Field Engineering personnel working together in a high performance...Full timeRemote workRelocation$130k - $145k
...time.Location: Hybrid: Chicago (3 days on-site)Position Overview:We are seeking a highly skilled and strategic Senior Endpoint Systems Engineer to join our IT team. In this role, you will serve as the primary architect and technical lead for the health, security,...Full time$112k - $140k
Job Description:The Sr. IT Systems Engineer designs, implements, and supports the company’s core infrastructure with a focus on Microsoft 365, Azure, identity, and endpoint management. This role ensures our systems are secure, scalable, reliable, and well-documented to...Full timeTemporary workCasual workWork at officeNight shiftAfternoon shift3 days per week$122k - $149k
...Early Warning, we’ve powered and protected the U.S. financial system for over thirty years with cutting-edge solutions like Zelle, Paze... ...employment Visa sponsorship.Overall PurposeThe Senior Systems Engineer - IAM sits within the Identity Platform Engineering team, part...Hourly payFull timeWork experience placementWork at officeImmediate startVisa sponsorshipWork visaFlexible hoursShift work- ...HPC Systems EngineerRadix Trading is seeking a seasoned HPC Systems Engineer with a passion for Linux, HPC systems and research infrastructure to join us. This role requires the ability to quickly troubleshoot and resolve technical issues, navigate networking and system...
$108.7k - $181.1k
...CME Chicago Mercantile Exchange Inc. is looking for a Sr Systems Engineer to support Reliability Engineering and Operations. This role requires strong knowledge of Windows server administration, with responsibilities including system configuration, troubleshooting, and...Shift work$125k - $145k
...Utilize estimating software such as Accubid to generate accurate and competitive bids. Work closely with project managers, engineers, architects, contractors, and suppliers to ensure that projects are accurately estimated and budgeted. Participate in pre-construction...Permanent employmentFor contractorsLocal area$60 - $70 per hour
...Systems Engineer / Platform Engineer/ Windows EngineerImmediate need for a Systems Engineer / Platform Engineer/ Windows Engineer. This is a 06 months contract opportunity with long-term potential and is located in Chicago IL/ Plano TX/Richmond VA/Mclean VA (Hybrid).Pay...Contract workLocal areaImmediate start- ...A consulting engineering firm in Chicago is seeking a Power Systems Engineer to lead utility planning and advisory projects. The ideal candidate will have a BS/MS in Electrical Engineering and 3+ years of experience in power systems engineering. Responsibilities include...
$150k - $300k
...Systems EngineerAquatic Capital Management is seeking a Systems Engineer to join our team.About the RoleWe are hiring a Systems Engineer to join our Infrastructure team. This is a senior individual contributor role with significant architectural ownership, and real accountability...Full timeCasual work- ...problem-solving skills, and the ability to mentor junior team members. You will be responsible for developing applications, ensuring system reliability, and collaborating with cross-functional teams. If you thrive in a dynamic environment and are passionate about...
$150k - $200k
...High Performance Computing Team is looking to add a Production Engineer in our Chicago office. The scale of our computing environments... ...challenges in providing good performance and reliability. Several systems including compute, scheduling, networks, and large-scale data...Full timeInternshipWork at officeAfternoon shift- ...Mantis Innovation is seeking a BMS Service Project Manager to lead day-to-day service operations for building automation systems in data centers and mission-critical facilities across the United States. You will supervise a team of BMS Service Technicians, coordinate dispatch...Night shift
- ...Systems EngineerOur client, located in River North, is hiring a Systems Engineer to assist with the administration and maintenance of our Linux hosting environments. In this role, you will work closely with our infrastructure, release, and development teams to maintain...
$111.1k - $170.3k
...A retail company seeks a Payment Systems Engineer in Lincolnshire, IL (Hybrid) to build an enterprise payments platform. Responsibilities include designing and maintaining payment services using C# and .NET/.NET Core, integrating with payment processors, and troubleshooting...- ...businesses that keep them one step closer to their customers and one step ahead of the competition. Job Description Job Summary Senior Systems Engineer is responsible for resolving escalated service incidents and complex requests, coaching other engineers, leading...Work at office
- ...free to check us out at Job Description Duration: 12 Months Location: Chicago, IL Responsible for the planning and engineering of an organization's systems infrastructure. Includes the implementation and design of hardware and software. Monitors the performance of...Flexible hours
$86.63k - $132.83k
...Systems Engineer IIInnovation. Sustainability. Productivity. This is how we are Breaking New Ground in our mission to sustainably advance the noble work of farmers and builders everywhere. With a growing global population and increased demands on resources, our products...Work at officeFlexible hours- ...Invenergy is seeking a Sr. Staff Engineer to perform engineering activities for project development and assist with technical design of utility-scale battery storage projects. This on-site role is based in downtown Chicago, IL. Responsibilities include interfacing with...
$95k - $130k
...Location: Colorado Springs, CO Remote Status: Remote Job Id: 13690-CPAW # of Openings: 1 Auria Innovations is seeking a talented Systems Engineer to design and test web, mobile, and desktop applications for aerospace mission planning and scheduling. The Systems Engineer...Ongoing contractContract workRemote workFlexible hours$100k - $115k
...and Chicago.Responsible for the configuration, implementation, and administration of the organization's server hardware, operating systems, applications and integrations. Analyzes and resolves complex problems associated with server hardware and server application software...Work at office- ...Employment Type: Contract with potential to convert to Full-Time - W2 Only Role Overview Reporting to the Director of IT, this Senior Systems Engineer will play a lead role in architecting, deploying, and managing enterprise-grade Kubernetes environments across AWS and GCP....Full timeContract work
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