• Design, implement, and sustain enterprise network architectures across on-premises, hybrid, AWS, and Azure cloud environments • Lead network engineering efforts through the full system lifecycle, including planning, design, implementation, testing, deployment, accreditation, and sustainment • Serve as the senior technical authority (SME) for routing, switching, network security, secure communications, firewall architecture, and cloud networking design • Engineer and maintain AWS and Azure cloud networking components, including VPCs, VNets, subnets, route tables, transit gateways, virtual WAN, ExpressRoute, Direct Connect, VPN gateways, peering, private endpoints, security groups, NSGs, load balancers, DNS services, NAT gateways, and hybrid interconnections • Develop and enforce network standards, security baselines, firewall policies, segmentation strategies, access control requirements, and cloud network governance • Ensure compliance with DoW cybersecurity requirements, including RMF, NIST 800-53, STIGs, CMMC, and Army 8140 requirements for privileged administrative access • Analyze, document, and optimize end-to-end traffic flows across enterprise, tactical, and cloud environments to ensure secure routing, performance, resiliency, and mission effectiveness • Provide technical oversight for DevSecOps and Infrastructure as Code (IaC) implementations supporting network automation and cloud network provisioning • Lead advanced troubleshooting and root cause analysis for complex network, firewall, routing, latency, packet loss, and connectivity issues across multi-domain environments • Support Authority to Operate (ATO) activities, including documentation, testing, remediation, and security validation

• Design, implement, and support secure, scalable, and resilient cloud infrastructure solutions across public and private Azure environments. • Utilise Infrastructure as Code (IaC) tools to automate, standardise, and manage cloud services. • Research, evaluate, test, and deploy cloud technologies in line with business and engineering requirements. • Optimise cloud platforms for performance, scalability, reliability, and cost efficiency. • Implement and maintain cloud security controls and best practices to protect systems, applications, and data. • Collaborate closely with software engineering teams to enable adoption and ownership of cloud technologies and full-stack solutions. • Create and maintain technical documentation, including architecture designs, configurations, standards, and operational procedures.

Role Description The Linux engineering team are responsible for Tradeweb’s Linux runtime environment. As a member of this global team, you will play a vital part in the strategy and operations of the firm. You will be heavily involved in the hardening of the OS, development and running of deployment tooling, and optimization of the platform for a low latency environment. In addition, you will also be asked to plan and execute the provisioning of new installations and the upgrades/patches of current deployments. The preferred candidate is a self-starter and well-rounded professional with strong knowledge in: - Systems - System administration - Systems engineering - Storage - Security - Networking The candidate should be passionate about technology and eager to work with team members in a fast-paced environment developing solutions supporting business objectives. Tradeweb Technology jobs are fully remote. The Tradeweb Technology hub is in our Jersey City office, which can be used for team meetings and collaboration efforts. There may be days where travel to the Jersey City office is recommended for organizational off sites. Job Responsibilities - Designing and implementing system architecture and operational duties for the firm’s Linux platform across all business lines. - Take part in regular patching of the Linux environment. - Help drive efforts to further automate systems builds and patching. - Automate deployment and routine maintenance of the environment using pipelines. - Build and deploy infrastructure, security and application monitoring tooling. - Work closely with the InfoSec team to provide detailed and actionable system logs to the SOC. - Define and monitor system SLA, build alarming and escalation procedures. - Aid application teams to debug performance/availability issues and provide subject matter expertise to application support teams. - Participate in an on-call rotation to support your environment. - Perform detailed root cause analysis and write clear and detailed postmortem reports including suggested long-term mitigation and remediation projects. - Proactively monitor utilization and performance and recommend capacity management strategies. Qualifications - Bachelor’s degree in computer science, Information Technology, Engineering, or a related technical field (or equivalent combination of education and relevant work experience). - 10+ years of professional experience in Linux-based roles, with demonstrated expertise in supporting, administering, and maintaining Linux operating systems in enterprise environments. - Very strong knowledge of the Linux platform, including regular system administration, kernel optimization, OS hardening and the Linux networking stack. - Experience managing thousands of Linux hosts in on-prem environment. - Strong familiarization with RHEL is a plus. - Strong written and oral communication skills. - Good understanding with various storage technologies and SAN/NAS protocols. - Demonstrated experience debugging OS issues in a complex business environment. - Experience with one or more virtualization environment in a production setting. - Strong sense of system hygiene and attention to detail, focused on driving projects to completion. - Strong proclivity for automation, including demonstrated experience building automated deployment tooling for Linux using Ansible or similar tools. - Experience managing Kubernetes. - AWS cloud experience with EC2, EKS, VPC, IAM, S3, Glacier is a plus. - Demonstrated coding ability in system automation, preferred languages Python and bash. - Experience in a low-latency environment is a plus, e.g. Solarflare or OpenOnload. - Experience deploying and managing several infrastructure and application monitoring tools and using those tools to make data driven operational decisions. Benefits - Health Insurance: Highly competitive medical, dental, and vision programs. - Hybrid Environment: Our employees have the flexibility of working in the office and from home. - Health Care and Dependent Care Flexible Spending Accounts: You may elect to set aside pre-tax earnings to pay for eligible health care and dependent day care expenses for you and your eligible family members. - Maven Family Building Benefit: Maven offers support for fertility and preconception; pregnancy and post-partum; adoption; surrogacy and pediatrics for children up to age 10. Tradeweb provides a $10,000 lifetime reimbursement towards fertility, egg freezing, adoption and surrogacy expenses. - Building Wealth - 401(k) Savings Plan: Employees are immediately eligible for the 401(k) plan. Participants may contribute up to 75% of eligible compensation into a traditional 401(k) and/or Roth 401(k). Tradeweb will match 100% of the first 4% of compensation that you contribute. - Pre-Tax Commuter Benefits Program. - ARAG Legal Services. - Employee Assistance Program. - Tuition Reimbursement. - Financial Wellness Tools. - Travel Assistance Benefits. - Pet Insurance. - Corporate Gym Subsidies. - Wellness Perks. - Paid Time Off and Parental Leave.

• Identify and implement AWS cost optimization opportunities, including rightsizing, Reserved Instances, and Savings Plans • Establish and enforce cloud cost allocation and tagging strategies • Configure cost anomaly detection, alerting, and reporting capabilities • Analyze recommendations from AWS Trusted Advisor and AWS Cost Optimization Hub • Deliver monthly cost optimization reports and executive recommendations • Educate customer teams on FinOps best practices and cloud financial management • Support implementation of FinOps Foundation frameworks and standards • Collaborate with engineering and finance teams to improve cloud governance