Our employees are truly our greatest asset. We have spent years building a team of talented, dedicated technologists, data-driven traders, and expert leaders with an emphasis on our core values: Collaboration, Ethics, Risk Management, and Diverse Experience and Opinions. Simplex is an in-office organization, helping to foster a collaborative and communicative culture.
We are seeking a highly skilled Systems Administrator to join our growing team in the fast-paced world of trading. This role is crucial in maintaining, optimizing, and troubleshooting our high-performance infrastructure. The ideal candidate will have strong expertise on the server-side, solid Linux fundamentals, and a passing knowledge of networking concepts to support our low-latency trading environment.
Key Responsibilities
- Manage and optimize Linux-based trading infrastructure, including performance tuning, system-level debugging, and kernel interactions.
- Deploy, maintain, and monitor high-performance computing systems in on-prem and co-located environments.
- Support network configurations, troubleshoot connectivity issues, and assist in managing multicast networks.
- Write and maintain Ansible, python and shell scripts for automation and system configuration or monitoring.
- Implement system monitoring, log analysis, and performance benchmarking tools.
- Maintain system security, user access control, and ensure compliance with trading regulations and best practices.
- Diagnose and resolve system issues quickly in a high-pressure environment.
Required Skills & Experience
- 5+ years of experience in Linux Systems Administration (RHEL, Ubuntu, or similar).
- Strong knowledge of Linux system fundamentals – interacting with the kernel, kernel modules, system processes and configurations.
- Experience with Linux-related technologies – Bash, SSH, rsync, cron, software-development tools (e.g. make, gcc)
- Comfortable working directly with server hardware (Power, storage devices, PCI-e, network connectivity, familiarity with a datacenter environment)
- Intermediate understanding of networking concepts (TCP/IP, multicast, source-based/policy-based routing,).
- Familiarity with shell scripting (Bash, Python, or similar).
- Hands-on experience with multicast networking in a trading or similar environment, especially Solarflare.
- Experience with automation and monitoring tools (Nagios, ansible, PXE).
- Strong troubleshooting skills in a high-performance, low-latency environment.
- Ability and willingness to learn new technologies and techniques quickly.
Annual base salary ranges from $125,000 to $200,000, and is influenced by a number of factors, including qualifications and experience. This role is also eligible for an annual discretionary bonus, of which can be a significant portion of total compensation. This full time role is also eligible for other forms of compensation and benefits including health/dental/vision insurance, and 401(k) contributions.
Network Engineer pay range
$125,000—$200,000 USD
Why us?
Founded in Chicago in 2004, Simplex is a leading, technology-driven, proprietary trading firm. We work with the most advanced technology and software in the market, and we’ve continued to remain at the forefront of the industry by always focusing on innovation, automation, and data-driven analysis. We also leverage our experience and expertise to make strategic investments and capitalize on opportunities in the venture capital markets with promising, early-stage financial and technology start-ups.
PLUS, the goods!
- Benefits: Excellent a la carte Medical/Dental/Vision (free employee coverage!), 401(k) match, generous parental leave!
- The Office: The kitchen is stocked with snacks, and beverages; you also have daily stipends for breakfast and lunch!
- Tuition Reimbursement: As an investment in our employees’ careers and the company’s future, we offer educational assistance to provide employees with professional development opportunities that increase their skills and enhance their contributions to the organization!
- Employee Discounts: To gyms, national brands, and more!
- Building: We are located in the Federal Reserve building. As a tenant you have access to a building gym and a full cafeteria. We are easily accessible to all public transportation.
- Charity Match: We match up to $2,000 a year in donations to the charities of your choice!
- Fun Events: In-person happy hours, celebrations throughout the year, game nights, video game fun, and so much more!
Simplex is an Equal Opportunity Employer
Top Skills
What the Team is Saying
What We Do
Since our founding in 2004, Simplex has continued to remain at the forefront of the industry by focusing on innovation, automation, and data-driven analysis.
Simplex is a leading technology-driven trading firm that builds proprietary software to create and capitalize on financial opportunities. We combine talented and dedicated technologists with data-driven employees to solve constantly evolving puzzles in the marketplace.
Specializing in US Equity Options and Future Options, Simplex provides the liquidity essential to a competitive, fairly-functioning marketplace. We continue to reinvent ourselves and evolve to best capitalize on financial market opportunity.
Why Work With Us
We are one team working towards a common, collective goal, and the collaborative environment we create allows our team’s talents to shine. We value highly-motivated, passionate individuals with diverse opinions and experiences.
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Simplex Trading Offices
OnSite Workspace
As a part of our commitment to fostering collaboration, innovation, and team culture, all employees in this role are expected to work onsite.
