As a Windows Server Team Lead, you will work within Infrastructure to design, build, and operate scalable systems that support the business. Your focus will be on Windows server platforms, identity services, automation, and reliability engineering across on‑prem Windows environments and hybrid cloud integrations.

What You’ll Do

• Lead and develop a team of Windows Server engineers, setting priorities and focusing effort on high‑impact reliability and platform initiatives.
• Design and implement high‑performance Windows Server solutions with a strong emphasis on availability, operational excellence, and latency‑sensitive trading workloads.
• Drive automation and infrastructure‑as‑code practices to improve deployment consistency, reduce manual work, and scale operations.
• Lead Active Directory modernization and hybrid identity initiatives, ensuring secure, reliable access across the firm.
• Partner closely with Security, Infrastructure, and Development teams to plan and deliver changes safely and predictably.
• Improve incident response through clear leadership during events, root cause analysis, and durable preventative follow‑ups.
• Contribute to resource management, forecasting requirements, and enhancing performance to support peak market activity.
• Produce and maintain documentation (runbooks, diagrams, post‑incident reviews) to support knowledge sharing and continuous improvement.
• Participate in an on‑call rotation and provide leadership during critical incidents as needed.

What We’re Looking For

• Good interpersonal skills with the ability to lead, mentor, and collaborate across technical teams.
• A pragmatic approach that balances fast delivery with long‑term maintainability and operational excellence.
• Ability to triage and resolve issues end‑to‑end, including clear ownership of root cause and prevention.
• 8+ years of hands‑on Windows Server administration experience in critical, high‑availability environments.
• Deep expertise in Windows Server, Active Directory, Group Policy, DNS, DHCP, and Failover Clustering, including performance tuning and resolving complex challenges.
• Proven leadership experience running infrastructure teams (or acting as a senior technical lead), with a record of developing engineers and driving standards.
• Strong PowerShell scripting/automation skills; experience with infrastructure‑as‑code tools and/or configuration management (or demonstrated willingness to adopt and lead these efforts).
• Willingness to participate in an on‑call rotation and lead through high‑severity incidents.
• Meticulous attention to procedure, change management, and meeting service expectations.

Nice to Haves

• Experience with enterprise platforms such as SCCM/MECM, endpoint/server monitoring, backup systems, and/or load balancers.
• Familiarity with ITIL concepts, operational workflows, project management, and DevOps/CI/CD practices.
• Experience supporting financial services infrastructure, trading systems, or market data platforms.
• Exposure to modern deployment approaches (e.g., containerization, orchestration).

Work Location and Collaboration

This role is based in Chicago, working closely with Infrastructure, Security, Networking, and Development teams for high‑bandwidth collaboration. We value face‑to‑face teamwork and pragmatic flexibility.

The Role

We are seeking a talented and experienced software engineer to join our specialized TAPE team within the Post Trade Technology group. Our team owns and operates the firm's critical trade and positions system, delivering real-time risk awareness and seamless integration across every trading desk in the organization.  As a key contributor to TAPE - our next-generation based platform engineered for enhanced scalability, volume capacity, and support for sophisticated trading strategies - you will drive the modernization of our core infrastructure. This role presents an exciting opportunity to tackle complex technical challenges in distributed architecture, high-throughput processing, and low latency systems while collaborating closely with both your immediate TAPE team members and the broader Post Trade Technology organization. You'll be instrumental in shaping the future of our trade processing capabilities, working at the intersection of cutting-edge technology and critical financial operations that power our firm's trading activities

What you'll do

• Architect, develop and maintain resilient Java services to power TAPE's critical post-trade processing workflows, including trade capture, position aggregation
• Engineer highly scalable distributed systems capable of processing millions of daily trades across multiple asset classes, optimizing for low latency in position updates while maintaining data consistency.
• Work closely with other engineers and stakeholders within the Post Trade Technology team to ensure seamless integration and alignment with broader post-trade processing initiatives and systems.
• Collaborate with cross-functional teams—including traders, quant developers, and other technical groups—to design, build, and enhance client APIs in Java, C++, and Python.
• Contribute to building and refining user interfaces using Angular, ensuring seamless integration with underlying APIs.
• Leverage distributed caching solutions (e.g., Hazelcast, Oracle Coherence, or Redis) and container orchestration with Kubernetes to optimize system performance and reliability.
• Drive technical innovation by evaluating and integrating emerging technologies, architectural patterns, and industry best practices to enhance system resilience, processing throughput, and operational efficiency.
• Proactively monitor system health, diagnose performance bottlenecks, resolve production incidents, and maintain detailed technical documentation to support 24/7 operations and regulatory compliance requirements

What we are looking for

• Bachelor’s degree in Computer Science, Engineering, or a related field (or equivalent practical experience).
• Proven experience in developing Java-based applications and services, preferably in a high-volume, low-latency environment.
• Proficiency in building and integrating APIs using Java, C++, and Python.
• Solid understanding of distributed systems and caching solutions (e.g., Hazelcast, Oracle Coherence, Redis).
• Exposure to trading systems and capital markets with an understanding of how real-time risk management and trade processing systems operate.
• Excellent problem-solving skills and a proactive approach to tackling complex technical challenges within a collaborative team environment.

Nice to have

• Experience with post-trade processing systems including trade capture, position management, settlement workflows, and real-time risk calculations in capital markets environments.
• Understanding of trade lifecycle events, reconciliation processes, and the integration points between front-office trading systems and back-office settlement operations.
• Experience working on critical trading systems or financial applications.
• Additional certifications or training in cloud architecture, containerization, or financial markets technology.
• Experience deploying and managing applications using Kubernetes.

The Role

We are seeking a proactive and detail-oriented Compliance Software Engineer to join our dynamic team. You will be responsible for developing, implementing, and maintaining innovative solutions that support our market participation and ensure effective management of trading operational risk. Your work will be integral in real-time monitoring of sales and pricing requests, compliance with trading venue regulations, and the generation of regulatory reports across multiple jurisdictions

What you'll do

• Design, build, and continuously improve real-time, high-throughput systems that monitor orders and quotes across venues, process large data sets, and carry out market-making obligations.
• Automate end-to-end compliance: detect prohibited trading behaviors, generate/submit regulatory reports (SEC, FSA, FINRA, etc.), and adapt controls to evolving rules and guidelines.
• Quickly fix production issues to ensure uninterrupted market operations.
• Document architectures, processes, and changes to support audits and regulatory reviews.

What we are looking for

• Java developer with at least 5 years experience with real-time, low-latency trading or financial-services systems.
• Experience building scalable, high-performance data pipelines and market-monitoring tools.
• Strong grasp of market-making, trading operations, risk management, and the applicable regulatory landscape.
• Shown analytical and problem-solving capabilities; comfortable balancing multiple priorities in a highly regulated, fast-paced environment.

Nice to have

• Experience with compliance/surveillance platforms or financial-regulation frameworks.
• Knowledge of operational-risk management tools.
• Familiarity with cloud-native architectures and big-data technologies.

We are seeking a highly motivated, technically adept Senior Trade Support Engineer. In this high-impact role, you’ll collaborate directly with traders and developers to troubleshoot critical live trading issues, manage complex incidents, and ensure the stability and resilience of production trading systems. You will be relied upon for swift problem diagnosis under pressure, rapid resolutions to minimize system downtime, and clear, concise communication across both technical and non-technical teams. This is an individual contributor role for a seasoned engineer who relishes autonomy, thrives in urgent situations, and is eager to make meaningful contributions to a cutting-edge trading operation. 

WHAT YOU’LL DO

• Troubleshoot and resolve live trading system issues, minimizing downtime during outages and communicating status updates to stakeholders. 
• Monitor real-time production environments, respond to anomalies, and escalate as needed. 
• Automate workflows and manual processes using Linux, Python, and Bash to improve operational efficiency. 
• Collaborate directly with traders and developers to relay critical system and software issues, and assist with patching and recovery. 
• Contribute to process improvements, documentation, and knowledge-sharing materials (runbooks, FAQs, retrospectives). 
• Own incident response, follow up on lessons learned, and drive continuous improvement of support operations. 

WHAT WE’RE LOOKING FOR

• Advanced knowledge of Linux; strong troubleshooting experience via CLI. 
• Experience working within the options space and familiar with one core market CME-Cboe.
• Proficient in Python and Bash scripting for automation. 
• Experience querying databases (SQL, Snowflake). 
• Prior experience supporting trading systems in a high-pressure, fast-paced environment. 
• Excellent problem-solving and communication skills; comfortable working with technical and non-technical teams. 
• Detail-oriented with a proactive, ownership-driven approach to incident management and process improvement. 

Our Options Market Making Execution team is looking for a Senior Engineer to build high-performance, elegant solutions to keep CTC's options trading infrastructure fast, efficient, and competitive. You'll partner with Engineers, Traders, and Quant Researchers to develop and fine-tune execution engines and trading strategies with the goal of reducing latency, maximizing performance and improving P&L. By simplifying system management and constantly improving our options trading engines, you'll ensure our trading infrastructure remains scalable, responsive, and cutting-edge.

WHAT YOU’LL DO

• Design and build high-performance, low-latency trading systems that power our Options Market Making business
• Work closely with traders, quants and technologists to drive ideas from inception to production in a timely and robust manner.
• Partner with other teams such as operations, option pricing, exchange connectivity to ensure your solutions seamlessly integrate into our firmwide trading infrastructure.
• Ensure operational safety and uphold the highest standards of software engineering by thoroughly testing code, following a coherent and maintainable design and architecture, and adhering to best practices—prioritizing carefully planned, well-structured solutions over ad hoc implementations.

WHAT WE’RE LOOKING FOR

• A minimum of 5 years of experience working in a production environment using modern C++
• Deep knowledge of low level systems programming, optimization, and hardware/software co-design
• Strong fundamentals in computer architecture and networking protocols
• Experience writing multithreaded and distributed systems with an affinity for delivering clean, performant code
• Ability to quickly triage issues and drive the resolution effort through completion
• Experience working at a high frequency trading firm is preferred

As a Senior Engineer on the Market Data team, you will play a pivotal role in ensuring reliable and fast delivery of the market data that is foundational to our trading systems. You will build high-performance libraries and services that process vast amounts of real-time data from financial venues across the world—data that all of our trading systems depend on to make critical decisions in the timeframe of microseconds to nanoseconds. Your work will be foundational to every trading strategy we run, and your contributions will be essential to maintaining CTC's competitive edge in this fast-paced trading environment.

WHAT YOU'LL DO

• Design and build high-performance, low-latency libraries and services that power our global trading platform
• Work closely with traders, quants and technologists to drive ideas from inception to production in a timely and robust manner.
• Partner closely with other teams such as execution, low-latency and hardware to design and deliver solutions for our next-generation market data platform
• Ensure operational safety and uphold the highest standards of software engineering by thoroughly testing code, following a coherent and maintainable design and architecture, and adhering to best practices—prioritizing carefully planned, well-structured solutions over ad hoc implementations.

WHAT WE'RE LOOKING FOR

• A minimum of 5 years of experience working in a production environment using modern C++
• Experience with low-latency feed handler development, market data protocols (e.g. MDP3, ITCH)
• Deep knowledge of low level systems programming, optimization, and hardware/software co-design
• Strong fundamentals in computer architecture and networking protocols
• Experience writing multithreaded and distributed systems with an affinity for delivering clean, performant code
• Ability to quickly triage issues and drive the resolution effort through completion
• Experience working at a high frequency trading firm is preferred

THE ROLE

We are seeking a Quantitative Developer to join as part of our Graybox Technology department. Unlike desk-specific QD roles, our mission is to design and build modeling platforms for the entirety of our Options Market Making (OMM) business. We aim to create scalable solutions that serve all trading desks and strategies. Our primary focus is modernizing our internal modeling libraries and building comprehensive modeling platforms that enable Quantitative Researchers (QRs) across the firm to innovate rapidly. As part of this team, you will help drive our vision of creating development frameworks and tools that provide the proper environment for QRs to focus on implementing business logic. We use advanced development techniques to implement these frameworks, but provide simple and straightforward interfaces for QRs to implement new models. We aim to increase the speed of research and innovation while maintaining the robustness and performance our trading systems demand. Our team of Firmwide QDs collaborate closely with QR teams across all trading desks, as well as other engineering teams in Graybox Technology to build world-class infrastructure that unlocks innovation potential across the entire firm.

WHAT YOU'LL DO

• Drive the modernization of modeling libraries and related infrastructure.
• Design and implement modeling platforms that accelerate QR innovation cycles.
• Build development frameworks with guardrails that allow QRs to focus on business logic rather than engineering complexity.
• Create tools and systems that streamline the research-to-production pipeline.
• Collaborate with QR teams across all desks to understand their modeling needs and pain points.
• Partner with other Graybox Technology teams on firmwide infrastructure initiatives.
• Develop analytical libraries using foundational technology provided by our engineering teams.
• Implement and optimize numerical techniques, algorithms, and computational frameworks.

WHAT WE ARE LOOKING FOR

Are you excited by the idea of applying your hardware development expertise to power ultra-low-latency trading systems? Do you want to explore new architectures that push the limits of performance and help take some of our most sophisticated trading strategies to the next level? If so, we encourage you to read on! 

At CTC, we’re looking for a Senior FPGA Engineer to join our FPGA development team to do just that and more. As a member, you'll work closely with other specialists, traders, and quants to design and build the next generation of end-to-end trading systems. While helping craft our development environment and processes, you’ll architect solutions, influence design choices across teams, and see your work translate into real-time impact. 

Responsibilities

• Partner with a skilled team to define and implement a pragmatic architectural vision with a focus on ultra-low-latency and reliability. 
• Collaborate with senior technology leaders to continuously improve our trading platform design. 
• Build a deep understanding of trading workflows, quantitative models, and system performance needs while working with a multidisciplinary team. 
• Develop an implementation roadmap in partnership with Quant and Trading to deliver incremental improvements in trading performance and long-term architectural innovation. 
• Lead design implementation efforts, contribute to team code reviews, and champion best practices around performance, logic, standard methodologies and maintainability issues to ensure code-level consistency and scalability. 

Qualifications

• Proven experience and expertise with FPGA development. 
• Advanced proficiency using HDLs, with an emphasis on SystemVerilog or VHDL. 
• Comfortable working in Python and/or C++ for developing tools, testbenches, and integrations. 
• Demonstrated understanding of computer architectures. 
• Enthusiasm for applying modern, agile design and testing practices. 

Nice to Have 

• Experience in financial markets or trading environments. 
• Knowledge of common networking protocols like TCP/UDP and multicast. 

RESPONSIBILITIES

• Design, develop, and maintain high-performance trading systems and algorithms, utilizing languages such as C++, Python, and Java
• Minimum of 4 years working experience in software development, preferably within a large distributed computing or systematic trading environment
• Bachelor's degree in Computer Science or quantitative field
• Comfortable working in a fast-paced, dynamic environment, adapting quickly to changing priorities and demonstrating flexibility in handling various tasks and projects

COMPENSATION

• Salary Range: $145,000 - $225,000, plus a discretionary bonus.
• The discretionary bonus will be dependent upon the individuals skills, experience, qualifications, and firm performance.