Unix / Open Systems Engineer

Join our innovative team as a Systems Engineer III in Chicago, where you will play a critical role in designing, implementing, and maintaining complex systems. Your expertise will contribute to enhancing our operational efficiency and ensuring the reliability of our systems.This position requires a proactive mindset and a passion for technology. You will collaborate with cross-functional teams to analyze requirements, troubleshoot issues, and optimize system performance.

Role Overview Akunacapital is hiring a Systems Engineer in Chicago, IL. This role focuses on designing, implementing, and maintaining the systems that support the firm's technology and business operations. What You Will Do Design and build complex systems that support trading and business processes Maintain and improve existing infrastructure Work with cross-functional teams to address technical challenges Contribute to technology initiatives that move the business forward What We Look For Strong understanding of systems architecture Ability to solve technical problems in a collaborative setting Experience working with teams across different functions

Join our dynamic and innovative execution development team as a Trading Systems Engineer, where your expertise will play a pivotal role in our trading operations.In this multifaceted position, you will manage critical systems that are essential to live trading, focusing on hardware, network connectivity, application performance, and exchange interactions.This role is not solely about support or project-based engineering; it encompasses both. Your responsibilities will include:Operational support for live trading systems, ensuring their stability and swiftly resolving production issues. This fast-paced environment demands strong troubleshooting skills, clear communication, and the ability to maintain composure under pressure. If you thrive on real-time problem-solving and appreciate the immediate impact of your contributions, this role is for you.Project-based engineering to enhance the reliability, performance, and automation of existing systems. Our objective is clear: fewer incidents, quicker recovery, proactive monitoring, and continual system improvement. We believe that understanding system behavior in real-world scenarios is crucial for effective enhancement.Our execution systems are fundamental to our success and require dedicated ownership to ensure seamless trading operations throughout the day. Your contributions will be vital in both optimizing current trading practices and developing a more robust platform for future success.As part of a team of seasoned engineers, you will be committed to operational excellence and continuous improvement, taking on significant responsibilities for complex, real-time interactions between trading and technology.

Join our innovative team as a Control System Engineer at Mindlance, where you will play a crucial role in developing and optimizing advanced control systems. Collaborate with cross-functional teams to design, implement, and maintain control strategies that enhance operational efficiency and safety.Your expertise will contribute to exciting projects in various industries, ensuring that our systems meet the highest standards of performance. If you are passionate about technology and eager to make a difference, we want to hear from you!

Join our dynamic trading team as a Systems & Automation Engineer in a fully remote capacity. We are looking for a skilled and driven individual who will play a crucial role in ensuring the seamless operation and maintenance of our trading systems. Key Responsibilities: - Ensure the stability and continuity of trading systems in a production environment.- Develop and manage Python-based automation solutions for operational tooling, monitoring, dashboards, and deployment workflows.- Administer Windows systems, focusing on configuration management, patching, performance optimization, and incident resolution.- Oversee identity, endpoint, and access management within the Microsoft ecosystem, including Microsoft 365, Entra ID, Intune, and related services.- Troubleshoot and resolve issues across various systems, applications, and core networking components in a multi-platform setup.- Assist in operational security initiatives like system hardening, vulnerability remediation, and continuous monitoring.- Participate in on-call support as part of a team rotation.

Join Harrison Street Asset Management (HSAM), a premier global alternative investment management firm specializing in real estate, infrastructure, and credit strategies across North America and Europe. With headquarters in Chicago, Toronto, and London, and offices spanning North America, Europe, Asia, and the Middle East, HSAM manages over $108 billion in assets for institutional investors and registered investment advisors worldwide.At HSAM, we foster a culture of innovation and are pioneers in alternative real estate and mid-market infrastructure. Our dedicated global team of more than 520 professionals strives to deliver long-term value through profound sector knowledge and progressive strategies.As a Senior Associate in the Systems and Platforms Engineering team, you will report directly to the Systems and Platforms Manager within the Business Technology Group (BTG). Your key responsibilities will include the day-to-day administration, reliability, and continuous enhancement of our on-premises and cloud-based systems, services, and platforms. Collaborating with the Help Desk, Cyber Security, application owners, and third-party vendors, you will ensure operational stability, robust security, and scalable solutions. Additionally, you will play a pivotal role in the adoption and operationalization of AI-enabled tools and services, ensuring they are implemented securely and align with business objectives.

Join Wabtec Corporation as a Principal Engineer - Software Systems, where you'll lead the development of innovative software solutions that power our cutting-edge technology initiatives. As a pivotal member of our engineering team, you will be responsible for architecting, designing, and implementing complex software systems in a collaborative environment.Your expertise will guide the technical direction of projects, ensure adherence to best practices, and mentor junior engineers. If you are passionate about technology and eager to make a significant impact in the transportation industry, we want to hear from you!

Hudson River Trading seeks a Trading Systems Engineer to join the Trading Systems Infrastructure team. This group builds and maintains the technology behind global trading operations. Their work supports high performance and reliability for the ultra-low latency operating systems, automation tools, and development platforms that keep trading strategies running worldwide, around the clock. Role overview The Trading Systems Engineer will help support and improve real-time production trading environments. The work centers on solving challenges that require high availability, high throughput, and ultra-low latency. This role contributes to the development and automation of essential infrastructure components, working alongside a team committed to keeping trading systems operating smoothly at all times. What you will do Support and improve real-time production trading environments Address challenges involving high availability, high throughput, and ultra-low latency Contribute to developing and automating critical infrastructure Collaborate with a team focused on system reliability and uptime Requirements Experience with coding and automation Strong interest in enhancing technology stacks Ability to solve complex technical problems in demanding environments Comfort working where uptime and performance are essential Locations Austin, TX, United States Boulder, Colorado, United States Chicago, Illinois, United States London, United Kingdom New York, NY, United States Seattle, Washington, United States

Join us as a Systems Engineer at ActiveCampaign, where you'll not only maintain our corporate infrastructure but also serve as the architect and innovator in enhancing IT efficiency and automation. Dive into the world of AI as you lead initiatives that harness cutting-edge technologies to optimize operations and foster self-service solutions throughout the organization.This position transcends traditional system administration; it focuses on transforming the work environment for our team by converting strategic objectives into effective, automated solutions. You will be responsible for deploying and managing infrastructure as code (IaC) using Terraform, implementing enterprise mobility management with Intune and Kandji, and overseeing identity and access management through Okta. Collaborate closely with Security and business units to ensure our technological infrastructure remains secure, scalable, and fully optimized for a rapidly growing AI-driven company.

Join the dynamic trading team at nextstepsystems as a Systems & Automation Engineer, where your expertise will ensure the smooth operation of our trading systems. This position is strictly onsite and does not support remote work. As a Systems & Automation Engineer, you will: Manage and maintain trading systems, ensuring their continuity and stability in a live trading environment.Develop and implement Python-based automation solutions for operational tools, monitoring dashboards, and deployment workflows.Administer Windows systems, focusing on configuration management, patching, performance tuning, and incident response.Oversee identity, endpoint, and access management across the Microsoft ecosystem, including Microsoft 365, Entra ID, and Intune.Troubleshoot and resolve issues across various systems, applications, and networking components within a multi-platform environment.Support operational security initiatives by enhancing system hardening, addressing vulnerabilities, and implementing continuous monitoring strategies.Participate in on-call coverage as part of a team rotation.

Join AECOM as a Senior Electrical Engineer specializing in Power Systems and contribute to innovative projects that shape the future of infrastructure. In this role, you will leverage your expertise to design, analyze, and implement electrical systems for a variety of projects, ensuring safety and compliance with industry standards.

Hudson River Trading is hiring a Junior Trading Systems Engineer to join its Trading Systems Infrastructure team. This group is responsible for designing, building, and maintaining the high-performance infrastructure that supports the firm's global trading operations. The focus is on ensuring reliability and efficiency for ultra low-latency operating systems, automation tools, and platforms that keep trading strategies running around the clock. Key responsibilities Contribute to projects within a real-time trading environment Address challenges that demand high availability, high throughput, and ultra low-latency solutions Support the maintenance and improvement of core infrastructure for global trading systems Assist in developing and automating tools that back trading operations What we look for Strong interest in coding and automation Willingness to learn new skills and technologies to work with a complex technical stack Ability to solve technical problems in a demanding setting Locations Chicago, Illinois, United States London, United Kingdom New York, NY, United States

About Us Established in 2016, Rhombus Systems is dedicated to enhancing global safety through our innovative platform, which integrates intelligent cameras, sensors, and AI-driven analytics. Our solutions empower organizations to elevate their safety measures and operational efficiency at scale. Our commitment to quality has secured a strong product-market fit, and our customers consistently express their satisfaction with the transformative impact of our offerings.Created by industry experts and supported by visionary investors, Rhombus aims to revolutionize physical security with cutting-edge, enterprise-level technology that is available for organizations of all sizes.Your Role As a Commercial Account Executive at Rhombus, you will play an essential role in our mission to enhance safety through effective physical security solutions. We are seeking a driven individual who thrives in a sales environment, taking ownership of the sales cycle from initial qualification to closing deals. The ideal candidate is self-motivated, persistent, and confident, ready to engage in prospecting while managing their sales funnel. You will work closely with our Marketing, Engineering, and Product teams, leveraging your expertise in Rhombus cameras and software to drive sales success.

Join Pinterest as a Staff Collaboration Systems Engineer for Google Workspace! In this role, you will play a critical part in enhancing our collaboration capabilities, ensuring seamless integration and functionality of Google Workspace tools across our organization. You will work closely with cross-functional teams to design, implement, and manage systems that foster collaboration and communication, driving the success of our projects and initiatives.

Join OppFi, a pioneering tech-enabled digital finance platform, in our mission to provide accessible financial products and services to everyday Americans. Our commitment to transparency and excellence helps those overlooked by traditional options to enhance their financial well-being.At OppFi, we cultivate an innovative, inclusive, and caring workplace that celebrates diverse talents, skills, and perspectives. Our employees tackle challenges with a vision for what’s possible, fostering a collaborative environment where continuous improvement is our daily goal. We seek individuals eager to transform the financial landscape by enhancing credit accessibility, promoting financial health, and delivering outstanding customer experiences.Fun fact: OppFi is a top-rated financial platform, boasting a 4.5/5.0-star rating on Trustpilot. Recognized as a 2025 Crain’s Fast 50™ company and featured on Built In's 2025 Best Places to Work in Chicago, we are proud of our achievements!***Please note that this role is not fully remote. This is a hybrid position in Chicago and will require occasional in-office presence***About the role:The Desktop Systems Engineer I will play a crucial role in delivering technical support and expertise in deploying, managing, and maintaining workstation operating systems and software. This position demands strong problem-solving capabilities and the ability to thrive both independently and within a team in a dynamic environment. You will also contribute to system upgrades, troubleshoot issues, and ensure the seamless integration of new technologies at OppFi.Key Responsibilities:Design, build, and oversee workstation configuration management platforms.Package, test, and deploy applications and configurations across the organization.Implement Windows and Mac OS deployments along with third-party patches across the computing landscape.Remediate vulnerabilities on workstations.Develop policies, procedures, and best practices for our Service Desk.Collaborate on cross-team projects with Security and Platform Engineering.Manage office systems and operational workflows.Assist in designing and maintaining our hybrid work environment.Maintain imaging solutions for Windows and Mac OS deployments.

Join CGS Federal as a CommVault Systems Engineer specializing in Data Protection and Backup.We are looking for a proactive and seasoned professional to design, implement, and support robust backup and recovery solutions tailored for large-scale federal environments.In this full-time role, you will leverage your expertise in the CommVault enterprise backup system to enhance data protection strategies, ensuring the security and accessibility of critical data.

Join Pure Storage, where we are at the forefront of revolutionizing the data storage industry. Our innovative approach empowers you to lead with creativity, evolve alongside us, and collaborate with the brightest minds in technology.Be part of transformative work that defines the tech landscape. If you're ready to embrace limitless potential and make a significant impact, we invite you to join us.THE ROLE:If you are enthusiastic about fostering innovation in the data storage domain and adept at designing technical solutions that surpass client expectations, this exciting opportunity awaits you! Pure Storage is seeking a dynamic and driven Senior Pre-Sales Systems Engineer to engage with the vibrant SLED market.In this position, you will be instrumental in understanding our clients' unique challenges and customizing Pure Storage solutions to address their needs effectively. Collaborating closely with the sales team, you will serve as a technical authority during the sales process, demonstrating the value of our products and services.

About Industrial Electric ManufacturingWith over 75 years of experience, Industrial Electric Manufacturing (IEM) stands as the premier independent manufacturer of custom power distribution systems across North America. Based in Fremont, California, IEM has evolved alongside Silicon Valley, boasting more than 1.7 million square feet of manufacturing space. We pride ourselves on achieving over $1 billion in annual sales and successfully completing more than 10,000 projects in diverse sectors including technology, data centers, healthcare, and utilities. Our commitment to exceptional quality, reliable service, and the capacity to meet intricate technical requirements at scale sets us apart in the industry. JOB SUMMARY:The Senior Field Service Engineer specializing in Rotary Uninterruptible Power Supply (RUPS) Systems will take the lead in the development of rotary UPS power system distributions, mechanical and generator integrations, system startups, and preventive maintenance strategies. Candidates must possess advanced technical skills, mechanical knowledge, leadership capabilities, and hands-on experience with electrical control systems and rotating equipment, such as generators and flywheels. A strong ability to troubleshoot and a dedication to providing high-performance power solutions in environments like data centers, hospitals, and industrial facilities is crucial.This position transcends traditional UPS engineering roles; prior experience with static UPS systems may not be beneficial. We seek candidates with substantial experience in mechanical systems, generators, and rotary equipment, who are adept at commissioning complex power systems in field settings. As the frontline expert, you will be responsible for launching large-scale RUPS systems, resolving technical challenges, and offering training to others. This role includes providing on-site technical support to our customers across North America for start-ups, retrofits, and maintenance, while collaborating closely with various IEM teams to integrate both current and innovative technologies, commission intricate generator and RUPS systems, and optimize existing power infrastructures to ensure smooth operations as specified by the customer's RUPS design and sequence of operations (SOO). You will serve as the primary contact for all field service personnel related to RUPS startup, generator assistance, preventive maintenance, 24-hour emergency responses, and remote technical support.

About Akuna Capital:Akuna Capital is a forward-thinking trading firm dedicated to collaboration, innovative technology, data-driven solutions, and automation. As a prominent options market-maker, we pride ourselves on providing competitive quotes for both buying and selling. Our success lies in designing and implementing our own low-latency technologies, trading strategies, and mathematical models.Founded by our partners in Sydney, Akuna opened its first office in Chicago in 2011, the heart of the derivatives industry and the global options capital. We have since expanded, proudly operating offices in Sydney, Shanghai, London, and Singapore.Your Role as a Senior Systems Engineer:We are in search of a talented and driven Senior Systems Engineer to join our Engineering team, tasked with building a state-of-the-art trading infrastructure. You will face intricate, large-scale technical challenges and be instrumental in the architecture and design of low-latency platforms, automated deployments, and tooling, while optimizing and maintaining our high-performance global trading environment. The ideal candidate will be self-motivated, proactive, and capable of taking ownership of projects with minimal supervision.