IT Operations Engineer

Quantiq specializes in high‑frequency derivatives trading in the largest markets worldwide. Our approach is rigorous and pragmatic, driven by technological expertise and analytics informed by real‑world experience. We value employees who love to learn and have the tenacity, curiosity and willpower to contribute to our continuing success.

We are a small but passionate team dedicated to enhancing and refining our tried and true methods as we commit to our ongoing growth and performance.

Quantiq runs considerable "in‑house" infrastructure: 50‑100 computers ranging from high‑performance servers and varied datacenter hardware (switches, FPGAs, fiber‑optic cabling) to desktop computers with dedicated GPUs, an array of monitors and peripherals across offices.

We control the majority of the stack and create, maintain, update, and monitor a variety of systems to keep the company’s trading running smoothly. Our hardware infrastructure operates entirely on Fedora Linux and incorporates significant first‑ and third‑party software requiring occasional maintenance. This complete infrastructure has high uptime requirements to support our critical trading operations.

As an IT Operations Engineer, you will be responsible for managing and maintaining the core IT infrastructure, ensuring that systems run smoothly and are consistently optimized. This role requires a mix of technical skills and the ability to troubleshoot a range of hardware, network, and software issues. You will work closely with both the Technical and Operations teams to provide support, implement solutions, and contribute to the overall success of our IT operations.

• Monitor, maintain, and optimize IT infrastructure, including servers, networks, storage, and databases.
• Oversee the full system lifecycle: provisioning, installation, configuration, asset management, monitoring, maintenance, and decommissioning of various systems.
• Work with vendors to procure and deploy new hardware.
• Respond to issues and requests from the Operations and Technical teams.

• 5+ years of experience in IT operations, systems engineering, or a related role.
• Strong knowledge of networking protocols and tools (TCP/IP, DNS, DHCP, VPN).
• Familiarity with scripting and automation tools (e.g., Bash, Power Shell, Python).
• Exceptional capability debugging and solving complex issues related to both hardware, low‑level software, and networking.
• Knowledge of network architecture.
• Excellent organizational skills and attention to detail in a fast‑paced environment.
• Strong written and verbal communication skills.
• Ability to respond to occasional off‑hour emergencies.

• You excel at diagnosing and resolving complex technical issues across hardware, software, and network layers.
• You enjoy learning and working with new technologies and platforms.
• You have experience with command‑line tools for troubleshooting and system management (e.g., Bash, Power Shell).
• You feel at home scripting and automating tasks.
• You understand and can configure networking protocols (TCP/IP, DNS, DHCP).
• You’re skilled in creating backup solutions and disaster‑recovery plans, regularly testing recovery processes to ensure reliability.

Write a program in C++ that takes in a file as input and reverses every line and puts it in a different file. Try to do this with as little memory footprint as possible and as fast as possible. Attach the file in the “Cover Letter” section.