Network Security Engineer Jobs

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. Position Summary CVS Health is seeking a highly skilled and visionary Sr. Manager to lead and manage our enterprise Cisco Application Centric Infrastructure (ACI) environment and the transition to Cisco Nexus Dashboard Fabric Controller (NDFC). This role sits within the Network Engineering team and is pivotal to driving the modernization and scalability of our next-generation data center fabric. This role will help set and drive the network technology strategy for ISTS, ensuring that ISTS delivers on our mission to transform technology and provide an agile, cost optimized and resilient set of network infrastructure services to meet the evolving needs of all the CVS Health lines of business. The ideal candidate will have experience supporting complex enterprise network environments and demonstrate deep expertise in Cisco ACI and NDFC technologies. As a strategic leader, you will be responsible for setting the direction, leading a team of engineers, and ensuring the operational integrity, performance, and evolution of our fabric-based data center architecture. This position will also mentor staff members in an effort to develop excellent enterprise networking skills. Key Responsibilities Lead the deployment, administration, and lifecycle management of the Cisco ACI environment Oversee the strategic transition to and ongoing management of the Cisco

Our Purpose Mastercard powers economies and empowers people in 200+ countries and territories worldwide. Together with our customers, we’re helping build a sustainable economy where everyone can prosper. We support a wide range of digital payments choices, making transactions secure, simple, smart and accessible. Our technology and innovation, partnerships and networks combine to deliver a unique set of products and services that help people, businesses and governments realize their greatest potential. Title and Summary Lead Network Architect (Cisco, F5, Palo Alto) Who is Mastercard? Mastercard is a global technology company in the payments industry. Our mission is to connect and power an inclusive, digital economy that benefits everyone, everywhere by making transactions safe, simple, smart, and accessible. Using secure data and networks, partnerships and passion, our innovations and solutions help individuals, financial institutions, governments, and businesses realize their greatest potential. Our decency quotient, or DQ, drives our culture and everything we do inside and outside of our company. With connections across more than 210 countries and territories, we are building a sustainable world that unlocks priceless possibilities for all. Overview The Systems and Platform Architecture team is looking for a Lead Network Architect to design and provide oversight through all stages of the development life cycle from bid, concept through architecture, design, build, test and delivery into production. Role Typically, the role will require the holder to: • Produce High Level Designs for Platform infrastructure solutions. • Maintain the technology roadmap for Platform / Unix Solutions in line with end of support dates. • Work closely with cross functional teams including Delivery, Engineering and Operatio

Job Title Service Network & Technical Operations Manager Job Description Job title: Service Network & Technical Operations Manager Your role: • Consumer Care & Service Network Management: Manage and strengthen the consumer care and authorized service network to ensure high-quality and timely service support. New Product Introduction (NPI) Training: Plan and conduct technical training for service centre teams on new product launches, product features, repair procedures, and troubleshooting. Spare Parts Management: Ensure availability and proper management of spare parts across service centres, including forecasting, inventory monitoring, and resolution of critical shortages. Safety Case Management: Identify, monitor, investigate, and coordinate closure of product/service-related safety cases in accordance with company safety standards and escalation procedures. Technical Product Knowledge: Develop and maintain strong technical knowledge of products, including functionality, installation, troubleshooting, repair, and common failure modes. Service Centre Claim Management: Manage service centre claims related to warranty repairs, spare parts, labour, and other service activities. Ensure claims are accurately validated, processed, and resolved within defined timelines. Service Quality Improvement: Monitor service performance and identify recurring technical issues, driving corrective and preventive actions with relevant teams. Cross-functional Coordination: Coordinate with Product Development, Quality, Supply Chain, Sales, and Customer Care teams to resolve technical and service-related issues. Performance Monitoring: Track key service network KPIs such as turnaround time, first-time fix rate, repeat complaints, claim closure

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. Position Summary: This is an individual contributor role. As part of the bold vision to deliver the “Next Generation” of managed care in Ohio Medicaid, Ohio RISE will help struggling children and their families by focusing on the individual with strong coordination and partnership among MCOs, vendors, and ODM to support specialization in addressing critical needs. The OhioRISE Program is designed to provide comprehensive and highly coordinated behavioral health services for children with serious/complex behavioral health needs involved in, or at risk for involvement in, multiple child-serving systems. This position assesses overall network composition and potential provider partners in order to identify and service partnerships that will advance and differentiate the OhioRISE Network. This executes, services and may negotiate contracts with local market providers in accordance with company and program standards to enhance provider networks and exceed accessibility, quality, and financial goals and cost initiatives. Key Responsibilities: Optimizes interactions with assigned providers and internal business partners to establish and maintain productive, professional relationships and partners in the development of business strategy and programs to support the operational plans. Collaborates cross-functionally to ensure resolution of escalated issues or

Everpure (NYSE: P) has evolved from storage pioneer to data platform, closing fiscal 2026 with $3.7 billion in revenue, its first billion-dollar quarter, and accelerating growth into FY27. Our strategic agenda spans the companies defining the next era of technology - hyperscalers, AI labs, the AI hardware supply chain, data platform providers, and the broader AI ecosystem. This type of work—work that changes the world—is what the tech industry was founded on. So, if you're ready to seize the endless opportunities and leave your mark, come join us. THE ROLE The FlashBlade team builds the industry’s most innovative, high-performance, and highly available portfolio of products that are designed for the most demanding mission critical applications. While we deliver a hardware storage array, over 90% of our engineering staff are software engineers. Our customers are the most important part of our business and they love FlashBlade for its simplicity of management, the constant flow of new and exciting upgrades, and ability to live on the cutting edge of technology while never taking downtime, ever. FlashBlade enables our customers to leverage the agility of the public cloud for both traditional IT and cloud-native applications. You’ll architect, implement, and optimize core services that span on-premises arrays and cloud deployments—delivering seamless storage experiences to enterprises around the globe. If you thrive on solving hard problems, influencing technical direction, and driving innovation end-to-end, this is the role for you. WHAT YOU'LL DO Manage the full software development life cycle, from initial architecture and invention through development, release, and ongoing maintenance. Drive the technical strategy by influencing system design, architecture, and best practices, specifically contributing to the evolution of the FlashBlade Networking product area. Invent and optimize algorithms to orchestrate multi-array and multi-cloud storage systems, foc

We’re building a world of health around every individual — shaping a more connected, convenient and compassionate health experience. At CVS Health®, you’ll be surrounded by passionate colleagues who care deeply, innovate with purpose, hold ourselves accountable and prioritize safety and quality in everything we do. Join us and be part of something bigger – helping to simplify health care one person, one family and one community at a time. Requisition Job Description Position Summary: The Pharmacy Network Regulatory Compliance Senior Advisor serves as the subject matter expert on applicable guidance and regulations and leads implementation and continuous improvement initiatives to ensure CVS/Caremark maintains compliance with current and emerging requirements affecting the Pharmacy Network division. This role partners with key functional leaders to translate regulatory requirements into operational processes and to initiate system enhancements needed to meet those requirements. The Senior Advisor proactively identifies, assesses, and escalates business risks and impacts to senior Pharmacy Network leadership, as appropriate. This position requires a strong understanding of local, state, and federal regulations and associated end-to-end processes. While the primary focus is on member and pharmacy network impacts, scope may expand to additional business areas as regulations and divisional responsibilities evolve. As part of regulatory issue resolution, the Senior Advisor serves as a key decision-maker for escalated client issues. Required Qualifications: Minimum of 7 years of professional experience, including experience in the health care industry. within a matrix reporting environment. Preferred Qualificatio

We are seeking a highly skilled and experienced Staff Network Site Reliability Engineer (SRE) to join our Enterprise Network Operations and SRE team. In this role, you will be pivotal in implementing our vision for a reliable and efficient network infrastructure. The ideal candidate is passionate about network operations and committed to enhancing the user experience. You'll have the opportunity to solve complex network challenges using hands-on debugging and by focusing on network automation, observability, documentation, and operational excellence. This is a critical position focused on ensuring user satisfaction and brilliance in network operations. What you'll be doing: Owning the operational aspect of the network infrastructure, ensuring its high availability and reliability, actively working on network incidents and service requests. Partnering with architecture and deployment teams to guarantee that new implementations are supportable and align with production standards. Advocating for and implementing automation to reduce toil and improve operational efficiency. Minimizing manual operational tasks to achieve and maintain Service Level Objectives (SLOs). Monitoring network performance, identifying areas for improvement, and collaborating with relevant teams to implement refinements. Proactively identifying and mitigating network risks to promote continuous improvement. Collaborating with domain experts across functions to resolve production issues swiftly and effectively, ensuring customer happiness. Conducting blameless postmortems and following through on Root Cause Analyses (RCAs). Discovering opportunities for operational improvements and teaming up with colleagues to devise solutions that enhance excellence and sustainability in network operations. Developing knowledge base articles for automa

Senior Network Deployment Engineer, PoP Management - DGX Cloud — 5 Locations. Apply via Workday.

Senior Network Reliability Engineer - DGX Cloud — 2 Locations. Apply via Workday.

Senior Network Engineer — Dublin, Ireland. Apply via Workday.

At Snowflake, we are powering the era of the agentic enterprise. To usher in this new era, we seek AI-native thinkers across every function who are energized by the opportunity to reinvent how they work. You don’t just use tools; you possess an innate curiosity, treating AI as a high-trust collaborator that is core to how you solve problems and accelerate your impact. We look for low-ego individuals who thrive in dynamic and fast-moving environments and move with an experimental mindset — who rapidly test emerging capabilities to discover simpler, more powerful ways to deliver results. At Snowflake, your role isn't just to execute a function, but to help redefine the future of how work gets done. Staff Network Engineer Location: MPK/Bellevue/Dublin Snowflake's Enterprise Technology Network Services team is looking for a Senior Network Engineer to lead the design, operation, and optimization of our Zero Trust and secure-access platform. This role is Zscaler-centric — you will own the health, performance, and roadmap of our ZIA/ZPA deployment — while working across a modern, multi-cloud network stack that supports a global workforce of 10,000+ users. You'll be the escalation point for the most complex connectivity issues and a driver of automation and observability across the environment. What You'll Do Own and operate the Zscaler platform (ZIA, ZPA, ZDX, ZCC) end-to-end, including policy frameworks, app-segmentation models, PAC/traffic-forwarding standards, App Connector topology, and NSS/log-streaming design. Troubleshoot secure-access incidents like tunnel flapping, broker/connector health, SSL inspection edge cases, DNS/DTLS failures, and lead root-cause analysis for systemic issues. Manage Palo Alto firewalls, Panorama and GlobalProtect VPN, while planning migration toward Zscaler solutions. Support Aruba (Central) Wireless, Ekahau and Cisco Catalyst switches globally. Design, install, and configure network devices and ISP circuits at new offices. Build automatio

Enterprise Network Account Executive - Comcast Business — Great Britain - London, Salisbury House. Apply via Workday.

Senior Network Engineer - DGX Cloud — 2 Locations. Apply via Workday.

About Us At Cloudflare, we are on a mission to help build a better Internet. Today the company runs one of the world’s largest networks that powers millions of websites and other Internet properties for customers ranging from individual bloggers to SMBs to Fortune 500 companies. Cloudflare protects and accelerates any Internet application online without adding hardware, installing software, or changing a line of code. Internet properties powered by Cloudflare all have web traffic routed through its intelligent global network, which gets smarter with every request. As a result, they see significant improvement in performance and a decrease in spam and other attacks. Cloudflare was named to Entrepreneur Magazine’s Top Company Cultures list and ranked among the World’s Most Innovative Companies by Fast Company. At Cloudflare, we’re not looking for people who wait for a polished roadmap; we’re looking for the builders who see the cracks in the Internet that everyone else has simply learned to live with. We value candidates who have the instinct to spot a "normalized" problem and the AI-native curiosity to create a solution using the latest tools. Our culture is built on iteration, leveraging AI to ship faster today to make it better tomorrow, while ensuring that every improvement, no matter how small, is shared across the team to lift everyone up. If you’re the type of person who values curiosity over bureaucracy, and that AI is a partner in solving tough problems to keep the Internet moving forward, you’ll fit right in. Available Locations Austin, US Atlanta Denver Seattle About the Role Cloudflare operates one of the world's largest and most interconnected networks, spanning 335+ cities across every region of the globe. We are looking for a Senior Network Engineer to join our Edge Network & Backbone team — someone who brings deep operational experience, an AI-first mindset, and the instinct to mentor and lift the engineers around them. In your first year, th

Every day, tens of millions of people come to Roblox to explore, create, play, learn, and connect with friends in 3D immersive digital experiences– all created by our global community of developers and creators. At Roblox, we’re building the tools and platform that empower our community to bring any experience that they can imagine to life. Our vision is to reimagine the way people come together, from anywhere in the world, and on any device. We’re on a mission to connect a billion people with optimism and civility, and looking for amazing talent to help us get there. A career at Roblox means you’ll be working to shape the future of human interaction, solving unique technical challenges at scale, and helping to create safer, more civil shared experiences for everyone. Every day, tens of millions of people from around the world come to Roblox to play, learn, work, and socialize in immersive digital experiences created by the community. Our vision is to build a platform that enables shared experiences among billions of users. This is what’s known as the metaverse: a persistent space where anyone can do just about anything they can imagine, from anywhere in the world and on any device. Join us and you’ll usher in a new category of human interaction while solving exceptional challenges that you won’t find anywhere else. As a Principal Network Engineer, you will work cross-functionally to plan the growth of Roblox’s global production network to support rapid user growth. In this role, you are responsible for Engineering and Architecture of Roblox Backbone and Edge Network. You will ensure that we are making the right investments with our global expansion to provide a great experience for all our users worldwide. We run services and a hosting platform with some unique complexities, so this role is an opportunity for the experienced network engineer to take on new challenges in addition to applying their existing expertise. You Will: Serve as a Principle Engine