Infrastructure Engineer

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 pillars: People Process Trading Edge and Technology. Simplex is an in-office organization helping to foster a collaborative and communicative culture.

Career Description

Simplex is looking for smart curious and driven individuals to join our technology team. Technology at Simplex is the core of the business. We are a leading technology-driven proprietary market-making firm. You will be someone excited by challenges and proactive in problem-solving.

What will you be doing

• Develop and maintain monitoring and deployment systems (Systems and Network)
• Triage and respond to issues
• Prepare and execute changes to the Linux environment
• Maintain and deploy servers and workstations
• Projects will be completed both independently and as a part of a team when necessary
• This is an in-office position with occasional onsite work at several colocation facilities in Chicago Aurora and New Jersey
• Infrequent evening/weekend work to allow for change execution outside of trading hours
• Other opportunities as assigned

Skills and Experience:

• 3 years of experience as a System Administrator Linux Administrator or similar
• Thorough understanding of Linux (kernel modules filesystems) with special emphasis on the network stack especially multicast and OpenOnload
• Experience working with Linux and standard tools (bash grep sed awk) and scripting languages (Python Perl bash)
• Understanding of Linux concepts (kernel modules memory allocation filesystems)
• Familiarity with common server technologies (IPMI SNMP) or software (Nagios Ansible dnf/rpm git)
• Experience troubleshooting complex performance issues
• Ability to lift and move heavy equipment (40-50 lb regularly)

Why us

Founded in Chicago in 2004 Simplex is a leading technology-driven proprietary market-making firm. We work with the most advanced technology and software in the market and weve 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) matchgenerous 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 companys 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 $2000 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. Simplex and its recruitment partners may use artificial intelligence (AI) tools to support certain aspects of the recruiting and hiring process. Final hiring decisions are made by humans. For all job postings Simplex may use AI to review and analyze applications resumes interviews and applicant responses. Simplex complies with applicable federal and state laws governing AI use. Applicants may still request reasonable accommodations. For more information related to AI or to request an accommodation please contact.