955 network engineer jobs found

Role summary Do you have a passion for technology? Do you want to make a difference, delivering IT infrastructure used by some of the biggest companies in the world and a critical player in the market infrastructure? We are looking for a skilled NetOps – Network engineer to join the LCH SA Infrastructure & Cloud Team that provides technical resources to Post Trade Business Services (a division of LSEG). Your role is vital in designing, deploying, and maintaining resilient, scalable, and highly available systems. Collaboration with infrastructure teams, operations, and partners will be crucial in ensuring efficient performance and availability of our critical environments. Key responsibilities and accountabilities Implements, tunes, and conducts ongoing administration of infrastructure layer, including proposing application systems changes, better uses and improvements Improves the whole lifecycle of services from inception and design, through deployment, operation, and...

Position Summary The role includes ongoing support and reliability of the LSEG ecosystem (Platforms, Networks, Applications, Services, and Websites).  The focus of this role is to provide 3rd line support to the Operations and Project Delivery (Implementation) functions, ensuring operational stability and ongoing adaptability of the LSEG global network. Key responsibilities are creating and maintaining software automation that provides the reliability and availability of digital platforms and their software delivery pipelines. Role Responsibilities Supports the technology lifecycle through the design, build and maintenance of systems Administer LSEG network services, ensuring applications and services perform against baselines levels  Monitors network services, focusing on availability, while identifying improvement opportunities Handles service providers (telcos), third parties and partners as required Makes technical design and amendment decisions and independently handles...

Your role at Exness: The Network Engineer is a new position being created to manage the safeguarding of the trading infrastructure network in line with business goals and objectives. This is a highly collaborative position whose ultimate goal is to drive experiments and research with a team of professional analysts and programmers to deliver low and ultra-low (ULL) latency solutions for trading.  As a Network Engineer, you will be maintaining the Exness network across multiple productions and corporate environments You will: Work directly with the Trading and Infrastructure units to drive pricing and trading solutions development and improvement Develops and implements the architecture and infrastructure of connections to data sources and exchanges Serve as a hands-on technical expert working directly with delivery teams to provide guidance on network  and problem resolution Traffic flow analysis and modeling Participates in all aspects of technical research,...

At Exness, we are not just a leading trading broker—we’ve reimagined what it takes to be a leader. With 40M+ trades a day and 2,000+ people across 13 countries, we combine scale, care, and real tech to make trading better for 1M+ clients worldwide.  Recognised globally as a Best Place to Work, we’re a people-first company where long-term wins always matter more. As part of our team, you will shape the future of fintech with real technology, care, and purpose. Why this role matters As a Network Engineer in the IT Infrastructure division, you will design, operate, and continuously optimize high-availability, geo-distributed network environments across global data centers. Your work ensures secure, resilient, and predictable connectivity for mission-critical platforms and services. You will drive the evolution of core network architectures, enhance automation and reliability practices, and collaborate closely with cross-functional engineering teams to support current and...

Job Summary: Senior Network Engineer - The ideal candidate will have 10+ years of hands-on experience in designing, implementing, and managing complex network environments. This role demands deep expertise in Routing & Switching, Wireless Networking, SD-WAN, Cisco Catalyst platforms, FortiGate Firewalls, DMVPN. Key Responsibilities: - Design, deploy, and maintain Enterprise Office Network infrastructure across multiple sites. - Configure and troubleshoot Cisco Catalyst and Juniper EX platforms routing and switching platforms. - Design, Implement and Manage / optimize wireless networks, including Cisco WLCs and APs. - Implement and manage SD-WAN solutions. - Administer and secure FortiGate / Juniper SRX Firewalls including policy creation, VPN setup, and threat management. - Design and support DMVPN topologies and S2S VPN for secure site-to-site connectivity. - Perform network performance tuning, capacity planning, and proactive monitoring. - Collaborate with cross-functional...

Optiver is looking for a Senior Network Engineer with a passion for solving problems and reducing complexity. You will join a team responsible for owning the networks that our industry-leading proprietary trading systems rely on. From day one, your contributions to the design, optimization and maintenance of our globally distributed networks will allow our traders and engineers to continue operating at the highest level of performance, making a direct impact to our business. Speed, reliability and scalability is at the center of everything that we do. WHAT YOU'LL DO Working in Optiver’s Network Engineering team will see you contributing to challenges scaling across low-latency, network automation, data center and WAN technologies through to colocation design and enterprise security to support our competitive market-making business. We're not interested in siloes, our engineers touch everything. Specifically you will do the following: Provide technical expertise to...

Optiver is looking for a Senior Network Engineer with a passion for solving problems and reducing complexity. You will join a team responsible for owning the networks that our industry-leading proprietary trading systems rely on. From day one, your contributions to the design, optimization and maintenance of our globally distributed networks will allow our traders and engineers to continue operating at the highest level of performance, making a direct impact to our business. Speed, reliability and scalability is at the center of everything that we do. WHAT YOU'LL DO Working in Optiver’s Network Engineering team will see you contributing to challenges scaling across low-latency, network automation, data center and WAN technologies through to colocation design and enterprise security to support our competitive market-making business. We're not interested in siloes, our engineers touch everything. Specifically you will do the following: Provide technical expertise to...

Benefits We are looking for intellectually curious people, passionate about the bigger picture of how technology industry is evolving, ready to ask difficult questions and deal with complicated scenarios! If you are creative and a problem solver, this is the place to be as will be supporting you to fast-forward your career! We enhance each employee’s potential through personal development through a wide range of learning tools both formal and informal. LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth. Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership , Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions. Working with us means that you will be part...

Benefits We are looking for intellectually curious people, passionate about the bigger picture of how technology industry is evolving, ready to ask difficult questions and deal with complicated scenarios! If you are creative and a problem solver, this is the place to be as will be supporting you to fast-forward your career! We enhance each employee’s potential through personal development through a wide range of learning tools both formal and informal. LSEG is a leading global financial markets infrastructure and data provider. Our purpose is driving financial stability, empowering economies and enabling customers to create sustainable growth. Our purpose is the foundation on which our culture is built. Our values of Integrity, Partnership , Excellence and Change underpin our purpose and set the standard for everything we do, every day. They go to the heart of who we are and guide our decision making and everyday actions. Working with us means that you will be part...

Role Responsibilities & Key Accountabilities: - Leads projects priorities, deadlines, and outcomes. - Utilises deep knowledge of site reliability, software engineering, programming languages, tooling, frameworks, infrastructure and systems for each task. - Leads designs of software components, systems, and features to improve the availability, scalability, latency, and efficiency of LSEG’s services. - Leads sustainable incident response and production improvements for LSEG. - Provides mentorship and advice to other team members on leading availability and performance of critical services, building automation to prevent problem recurrence, and building automated responses for non-exceptional service conditions. - Mentors and trains other team members on design techniques and coding standards, and cultivate innovation and collaboration. - Writes and reviews highly optimised and accurate code for LSEG products and solutions and provides feedback and suggested improvements to team...

Calling all innovators – find your future at Fiserv. We’re Fiserv, a global leader in Fintech and payments, and we move money and information in a way that moves the world. We connect financial institutions, corporations, merchants, and consumers to one another millions of times a day – quickly, reliably, and securely. Any time you swipe your credit card, pay through a mobile app, or withdraw money from the bank, we’re involved. If you want to make an impact on a global scale, come make a difference at Fiserv. Job Title Senior Network Engineer About Your Role: You will join an experienced Extranet Infrastructure team responsible for design, development, deployment, and maintenance of a wide variety of networking technologies and solutions that provide global intercommunications throughout Fiserv and its customers. What you’ll do: Deliver a variety of network, security, cloud, virtualization, SDN, and automation technologies  Drive early concept assessments...

Job Summary: Senior Network Engineer - The ideal candidate will have 10+ years of hands-on experience in designing, implementing, and managing complex network environments. This role demands deep expertise in Routing & Switching, Wireless Networking, SD-WAN, Cisco Catalyst platforms, FortiGate Firewalls, DMVPN. Key Responsibilities: - Design, deploy, and maintain Enterprise Office Network infrastructure across multiple sites. - Configure and troubleshoot Cisco Catalyst and Juniper EX platforms routing and switching platforms. - Design, Implement and Manage / optimize wireless networks, including Cisco WLCs and APs. - Implement and manage SD-WAN solutions. - Administer and secure FortiGate / Juniper SRX Firewalls including policy creation, VPN setup, and threat management. - Design and support DMVPN topologies and S2S VPN for secure site-to-site connectivity. - Perform network performance tuning, capacity planning, and proactive monitoring. - Collaborate with cross-functional...

Position Summary The role includes ongoing support and reliability of the LSEG ecosystem (Platforms, Networks, Applications, Services, and Websites).  The focus of this role is to provide network engineering support to the Operations and Project Delivery (Implementation) functions, ensuring operational stability and ongoing adaptability of the LSEG global network. Key responsibilities are creating and maintaining software automation that provides the reliability and availability of digital platforms and their software delivery pipelines. Role Responsibilities Supports the technology lifecycle through the design, build and maintenance of systems Administer LSEG network services, ensuring applications and services perform against baselines levels  Monitors network services, focusing on availability, while identifying improvement opportunities Handles service providers (telcos), third parties and partners as required Makes technical design and amendment decisions and independently...

Position Summary The role includes ongoing support and reliability of the LSEG ecosystem (Platforms, Networks, Applications, Services, and Websites).  The focus of this role is to provide 2nd line support to the Operations and Project Delivery (Implementation) functions, ensuring operational stability and ongoing adaptability of the LSEG global network. Key responsibilities are creating and maintaining software automation that provides the reliability and availability of digital platforms and their software delivery pipelines. Role Responsibilities Supports the technology lifecycle through the design, build and maintenance of systems Administer LSEG network services, ensuring applications and services perform against baselines levels  Monitors network services, focusing on availability, while identifying improvement opportunities Handles service providers (telcos), third parties and partners as required Makes technical design and amendment decisions and independently handles...

Tower Research Capital is a leading quantitative trading firm founded in 1998. Tower has built its business on a high-performance platform and independent trading teams. We have a 25+ year track record of innovation and a reputation for discovering unique market opportunities. Tower is home to some of the world’s best systematic trading and engineering talent. We empower portfolio managers to build their teams and strategies independently while providing the economies of scale that come from a large, global organization. Engineers thrive at Tower while developing electronic trading infrastructure at a world class level. Our engineers solve challenging problems in the realms of low-latency programming, FPGA technology, hardware acceleration and machine learning. Our ongoing investment in top engineering talent and technology ensures our platform remains unmatched in terms of functionality, scalability and performance. At Tower, every employee plays a role in our success. Our...

Blackstone is the world’s largest alternative asset manager. We seek to create positive economic impact and long-term value for our investors, the companies we invest in, and the communities in which we work. We do this by using extraordinary people and flexible capital to help companies solve problems. Our $1.1 trillion in assets under management include investment vehicles focused on private equity, real estate, public debt and equity, infrastructure, life sciences, growth equity, opportunistic, non-investment grade credit, real assets and secondary funds, all on a global basis. Further information is available at www.blackstone.com . Follow @blackstone on  LinkedIn ,  X , and  Instagram . Business Unit Overview: Blackstone Technology & Innovations (BXTI) is the technology team at the core of each of Blackstone’s businesses and new growth initiatives. Serving both internal and external clients, we work to build the next generation of...

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.  We realize people do not fit into neat boxes. We are looking for curious and empathetic individuals who are committed to developing themselves and learning new...

About the Company Gemini is a global crypto and Web3 platform founded by Cameron and Tyler Winklevoss in 2014, offering a wide range of simple, reliable, and secure crypto products and services to individuals and institutions in over 70 countries. Our mission is to unlock the next era of financial, creative, and personal freedom by providing trusted access to the decentralized future. We envision a world where crypto reshapes the global financial system, internet, and money to create greater choice, independence, and opportunity for all — bridging traditional finance with the emerging cryptoeconomy in a way that is more open, fair, and secure. As a publicly traded company, Gemini is poised to accelerate this vision with greater scale, reach, and impact. The Department: Platform Our Platform organization’s purpose is to enable Gemini to scale effectively and empower our engineering teams to focus on building innovative financial products and experiences for individuals...

About the Company Gemini is a global crypto and Web3 platform founded by Cameron and Tyler Winklevoss in 2014, offering a wide range of simple, reliable, and secure crypto products and services to individuals and institutions in over 70 countries. Our mission is to unlock the next era of financial, creative, and personal freedom by providing trusted access to the decentralized future. We envision a world where crypto reshapes the global financial system, internet, and money to create greater choice, independence, and opportunity for all — bridging traditional finance with the emerging cryptoeconomy in a way that is more open, fair, and secure. As a publicly traded company, Gemini is poised to accelerate this vision with greater scale, reach, and impact. The Department: Platform Our Platform organization’s purpose is to enable Gemini to scale effectively and empower our engineering teams to focus on building innovative financial products and experiences for individuals...

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.  We realize people do not fit into neat boxes. We are looking for curious and empathetic individuals who are committed to developing themselves and learning new...

Flow Traders is looking for an Network Engineer to join our growing Technology team in Hong Kong. The ideal candidate is curious, innovative and passionate about technology This is a unique opportunity to join a leading proprietary trading firm with an entrepreneurial and innovative culture at the heart of its business.  We value quick-witted, creative minds and challenge them to make full use of their capacities. If you aim high, the sky is the limit! In this dynamic role within a fast-paced environment you are the ‘network thought-leader’, an engineer who is going to help us to build and optimize the IT infrastructure for our business requirements. What You Will Do Safeguard the continuity of our trading systems infrastructure and facilitate our traders in their day-to-day activities Monitor and optimise our systems which host a wide range of applications Be the driving force behind innovations, ranging from realizing new links between stock markets and our network to...

Cloud Network Engineer Location: Belfast Salary: Competitive Join our team of expert engineers in the Options Cloud Team! Working for Options Developing and engaging our people is a strategic priority for our business. We are looking for talented individuals to join our team and contribute to Options’ future growth and success. We want to hear from candidates that are motivated, self-driven and have a passion to learn and develop their skills in the world of financial technology. Who are we? Options is the largest global financial technology company headquartered in Belfast. We are at the forefront of banking and trading infrastructure, serving clients globally with offices in New York, Chicago, Toronto, London, Cambridge, Paris, Hong Kong, Tokyo, Singapore, and Auckland. At Options, our services are woven into the hottest trends in global tech, including high-performance Networking, Cloud, Security, and AI (Artificial Intelligence). Why Options?...

Junior Network Engineer Location:  Belfast Salary:  Competitive Join our team of expert engineers in the Options Networks Team ! Working for Options Developing and engaging our people is a strategic priority for our business. We are looking for talented individuals to join our team and contribute to Options’ future growth and success. We want to hear from candidates that are motivated, self-driven and have a passion to learn and develop their skills in the world of financial technology. Who are we? Options is a leading managed services and IT infrastructure products provider to the global capital markets community. Founded in 1993, the company began life as a hedge fund technology services provider. Today over 200 firms globally leverage the Options platform, including the leading global investment banks, hedge funds and exchanges. We currently employ over 450 employees worldwide and are continuing to grow...

Junior Network Engineer Location: Belfast Salary: Competitive Join our team of expert engineers in the Options Networks Team! Working for Options Developing and engaging our people is a strategic priority for our business. We are looking for talented individuals to join our team and contribute to Options’ future growth and success. We want to hear from candidates that are motivated, self-driven and have a passion to learn and develop their skills in the world of financial technology. Who are we? Options is a leading managed services and IT infrastructure products provider to the global capital markets community. Founded in 1993, the company began life as a hedge fund technology services provider. Today over 200 firms globally leverage the Options platform, including the leading global investment banks, hedge funds and exchanges. We currently employ over 450 employees worldwide and are continuing to grow across offices...