12 Charter Communications jobs in Stamford

Our client is a leading global investment bank in Stamford, CT. They are seeking a talented Principal Network Engineer to own their 2025 Infrastructure EOL Remediation Program. The program is required to mitigate network gear that has reached end of service life. The key objectives are to replace ~150 or more devices with global standards for service and support. This will begin as a 6-12 month contract with the potential for extensions and/or conversion. This will be a hybrid schedule (2-3 days per week onsite). In order to be successful, you should have specific SME skill sets in areas including complex routing, switching, firewall, DNS, automation, and cloud security. Key Responsibilities: Engineering new solutions to replace EOL services & devices. Developing complex planning cycles to implement solutions without service outages or application impacts to business. Implementing and production cutover events. Weekend availability is required. The ideal candidate would need a collaborative style, with the ability to rapidly discover our current networking environment, prioritize specific designs that need upgrade, and work closely with a tenured team to complete strategic priorities. Preferred Technology Experience: Cisco Networking, Fortinet Firewalls, Blue Coat, F5, GigaMon, InfoBlox, NetApp, Google Cloud Networking, Automation certifications in Python, Terraform, Ansible or similar. Seniority level Mid-Senior level Employment type Contract Job function Engineering and Information Technology Industries Financial Services, Investment Banking, and Banking #J-18808-Ljbffr

FlexTrade Systems is a financial technology Software Company headquartered in Great Neck, New York. We are celebrating 26 years as an industry pioneer and a global leader in broker-neutral trading platforms for equities, foreign exchange, options, futures, and fixed income. FlexTrade has 500+ employees across 10+ offices in North America, Europe, and Asia, and a worldwide client base both from Buy Side and Sell Side business. It is an exciting time to join FlexTrade. Each line of business and region is at a different growth phase. Across its functional teams, FlexTrade is taking bold steps to transform its business and approach to positioning itself for the next growth phase

The Team

We are actively seeking experienced candidates to join our global team that supports FlexTrade’s Software-as-a-Service (SaaS) network infrastructure. As a financial services technology vendor that delivers mission critical services to our clients, FlexTrade’s Network is vital to our business and foundational to customer success. You will be a vital leader and member of the FlexTrade’s Network team. This team plays an integral role in the business, keeping our revenue generating SaaS environment well architected and running smoothly. This ensures we can deliver a high level of service to our diverse set of clients, including large asset managers, hedge funds, banks and brokers which in turn maintains FlexTrade's reputation as a market leader in the space. 

About You

The Senor Network Engineer will be responsible for ensuring that the FlexTrade’s network infrastructure is well architected and runs smoothly.  Success in this role will require strong experience in designing, implementing, and maintaining networks, It requires robust and innovative approaches in, problem solving, technical leadership, excellent communication (written and verbal, formal and informal), flexibility, accountability and a self-motivated working style with attention to detail. Your experience and knowledge will be instrumental in helping FlexTrade to build, manage and maintain a highly resilient network. You will also be called upon to help be the technical representative for your team during major incident and troubleshooting of network-related issues.

7–9 years of hands-on network engineering experience.

5–7 years of network operation experience including troubleshooting and incident handling

5–7 years of experience in network design and implementation

5–7  years of Extensive experience with Cisco switches, routers and firewalls

Advanced networking knowledge of EIGRP/OSPF/BGP routing, L2 switching (Port-channel, vPC), and Firewalls

Detailed understanding of network security, including Firewalls, VPNs,

Bachelor’s degree in Computer Science, Engineering or related field, and / or equivalent work experience

Excellent troubleshooting skills

Key Responsibilities

Work on a controlled change management environment.

Provides network operations support in a 24/7 operating environment.

Manage the full end-to-end technology life cycle within the network space

Work as part of a global network team monitoring and troubleshooting low latency network environments across several continents

Maintain and validate quality network service by establishing and enforcing managed hosting standards, metrics and best practices

Support internal and external customer requests

Plan, design, and work with Vendors to build, install and configure new network capabilities to meet the needs of the business

Manage projects. Including the ability to effectively and accurately document requirements and develop clear execution plans

The ability to plan and script complex changes within the network infrastructure. This involves a lot of weekend and off-hour work.

Patching & upgrade management of networking devices

Participates in change control committee, providing input into all changes/additions to network to ensure minimal disruption to production system.

Identify and delegate ways to create efficiencies in supporting clients, internal communications, and process development and refinement.

Forecasts potential issues within technical solutions and provides proactive remediation options for consideration.

Resolves any scheduled maintenance or major outage issues escalated from direct reports.

Additional Requirements

Experience with automation tools such as Ansible would be an advantage

CNP/CCIE certified or equivalent

RHCE, CompTIA certified or equivalent experience is desirable

**FlexTrade Systems, Inc. does not accept unsolicited resumes from search firm recruiters. Fees will not be paid in the event a candidate submitted by a recruiter without an authorized agreement for a particular SOW (Statement of Work) in place is hired: such resumes are deemed the sole property of FlexTrade Systems, Inc.**

**FlexTrade Systems, Inc. is an equal opportunity employer and makes employment decisions without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, protected veteran status, disability status, or any other status protected by law.**

• Provide support for all corporate and enclave firewalls, application delivery controllers, RADIUS, RSA.
• Develop and implement firewall changes for supported networks
• Evaluate requested changes for possible Cyber-Security Threats
• Provide 3rd level support to troubleshoot networking issues.
• Interact with support-customers to resolve issues and provide solutions as required.
• Provide off-hour support as operational needs dictate. The candidate must be available for rotating weekly on-call shifts (24 hour on-call support) with other members in the group.
• Lead and / or manage projects of various priorities in a fast-paced environment.
• Provide Design Consultation for projects for firewall necessity and configuration.
• Develop and execute disaster recovery and test plans for all supported devices.
• Prepare support documentation for the for 1st and 2nd level support groups.
• Document and/or revise administration procedures for security, configuration, operation, and administration of devices.

• A Bachelor's Degree in Computer Science or related field with at least 3-5 years' work experience in an enterprise IT environment.
• Authentication services ( policies / Radius and RSA authentication connections)
• Firewall image upgrade planning and implementation
• IDS/IPS profiles
• Imaging and restoration of firewalls from root layer
• IPSEC VPNs with between local Cisco and FortiGate firewalls as well as external dissimilar vendor model firewalls/routers.
• Logical and virtual interfaces for networks sharing security levels.
• SNMP monitoring and alert profiles
• Strong organizational skills and attention to detail are required.
• The candidate must be knowledgeable of Information Security networking best practices and be able to evaluate design requests for Cyber Security threats.
• The candidate must have extensive experience with firewall administration, upgrades, backups, configuration, and diagnostics.
• The candidate must possess excellent project management, technical writing and oral communication skills.
• The candidate must possess excellent technical skills, particularly regarding Network Diagnostics, Firewall operations and deployments (Cisco and/or Fortinet mandatory).
• This individual must demonstrate the ability to exercise independent judgment, manage complex projects, represent the organization in dealings with customers and vendors, and render sound business decisions.
• VIPs and NAT for external interfaces
• Vulnerability review of hardware

• systems (RSA, Radius)
• Centralized Management tools (Cisco Systems Manager, FortiManager)
• Cloud systems integration (ex. Azure)
• NGFW Threat Management Tools (ex. web-filtering, application filtering)
• Scripting / Automation

• Design, implement, and manage complex network architecture to meet requirements from various business units
• Support network and security infrastructure and controls, including, but not limited to Routers, Switches, SD-WAN, Firewalls, VPN, TACACS, NetFlow based tools, etc.
• Develop and implement disaster recovery plans for the network; assist in conducting periodic internal and external audits to assess security/risk in our company's network
• Ensure network systems comply with relevant regulatory and compliance standards
• Participate in incident triage, analysis, response, and remediation for network outages, intrusions, attacks, and other incidents
• Assist in developing network-specific security policies, guidelines, standards, and procedures
• Implement automation scripts and tools to streamline repetitive network tasks
• Manage network services and configurations, recommending and implementing changes that will improve overall company network security
• Assist in evaluating and developing solutions for complex network and security technologies for enterprise and service provider environments
• Work with network hardware and software vendors to evaluate new products and technologies
• Lead and/or participate in network-related projects, ensuring timely and successful completion
• Collaborate with cross-functional teams to understand business needs and translate them into effective network solutions; collaborate with IT to design and implement hybrid cloud network solutions
• Perform other duties as requested by the supervisor

• 5+ years of technical hands-on networking and security experience
• Proficiency with network administration and architecture, and an in-depth understanding of communication protocols and routing protocols (BGP, OSPF)
• Familiarity with access control models and network security, knowledge of coding languages for scripting (Python)
• Experience with network diagnostic, monitoring, and analysis tools
• Experience with routers, switches, firewalls, VPN, netflow, and other network security tools

• Cloud networking experience
• Networking and security certifications (CCNA, CCNP, etc)
• Familiarity with Cybersecurity frameworks such as NIST CSF and ISO 27001

Network Security Engineer Work Location: This is a fully in-office/on-site position in Woodbury, NY for the first 90 days. After 90 days, the role will be hybrid onsite 3 days/2 days remote per week. Position Summary: This role is available with a leading Cable/Internet company on the East Coast. It will be a combination of networking and security, with an emphasis on network engineering. The ideal candidate will have more experience on the network engineering side. Position Responsibilities: Design, implement, and manage complex network architecture to meet requirements from various business units. Support network and security infrastructure and controls, including, but not limited to Routers, Switches, SD-WAN, Firewalls, VPN, TACACS, NetFlow based tools, etc. Develop and implement disaster recovery plans for the network; assist in conducting periodic internal and external audits to assess security/risk in our company's network. Ensure network systems comply with relevant regulatory and compliance standards. Participate in incident triage, analysis, response, and remediation for network outages, intrusions, attacks, and other incidents. Assist in developing network-specific security policies, guidelines, standards, and procedures. Implement automation scripts and tools to streamline repetitive network tasks. Manage network services and configurations, recommending and implementing changes that will improve overall company network security. Assist in evaluating and developing solutions for complex network and security technologies for enterprise and service provider environments. Work with network hardware and software vendors to evaluate new products and technologies. Lead and/or participate in network-related projects, ensuring timely and successful completion. Collaborate with cross-functional teams to understand business needs and translate them into effective network solutions; collaborate with IT to design and implement hybrid cloud network solutions. Perform other duties as requested by the supervisor. Requirements: 5+ years of technical hands-on networking and security experience. Proficiency with network administration and architecture, and an in-depth understanding of communication protocols and routing protocols (BGP, OSPF). Familiarity with access control models and network security, knowledge of coding languages for scripting (Python). Experience with network diagnostic, monitoring, and analysis tools. Experience with routers, switches, firewalls, VPN, netflow, and other network security tools. Preferred Experience/Skills: Cloud networking experience. Networking and security certifications (CCNA, CCNP, etc). Familiarity with Cybersecurity frameworks such as NIST CSF and ISO 27001. #J-18808-Ljbffr

Join a top-tier Cisco Gold Partner that delivers advanced network solutions to global enterprise clients. With a strong reputation across Routing & Switching, Security, Wireless, and Data Center, this organization is expanding its network operations team and looking for a highly skilled Senior DDI Network Engineer.

If you're an expert in EIP and Netbox with a passion for automation and enterprise networking, apply now to secure your spot with a top-tier Cisco partner. Interviews are happening fast don’t miss your chance.

Key Responsibilities:

• Work hands-on with EfficientIP (EIP) and Netbox, ensuring accurate, efficient network and IP management
• Contribute to automation and integration projects using Python, Ansible, and Jinja templates
• Collaborate with global teams to maintain and enhance network visibility and data accuracy

Skills & Requirements:

EfficientIP (EIP):

• Build and optimize IPAM configurations
• Perform Block/Subnet corrections and manage KV Attributes
• Design hierarchical structures (e.g., supernets, reservations, subnets)
• Synchronize EIP with tools such as IP Fabric, Netbox, and DHCP servers

Netbox:

• Install, configure, and manage Netbox (Linux/PostgreSQL required)
• Synchronize with EIP and IP Fabric
• Maintain custom reservation tools and customer data within Netbox
• Ensure data integrity and scalability across integrated systems

Salary:

• 95ph all inclusive

Hiring near our US Centers of Excellence.

Hybrid, flexible environment

Irving, TX, Fort Myers, FL, or Stamford, CT

Gartner offers a hybrid, flexible environment, with remote work that allows associates great flexibility to work from home, and opportunities to connect with colleagues for moments that matter on-site. Candidates that apply should be located within a reasonable proximity to one of Gartner's Centers of Excellence office locations.

About Gartner IT:

Join a world-class team of skilled engineers who build creative digital solutions to support our colleagues and clients. We make a broad organizational impact by delivering cutting-edge technology solutions that power Gartner. Gartner IT values its culture of nonstop innovation, an outcome-driven approach to success, and the notion that great ideas can come from anyone on the team.

About the role:

Gartner seeks a Principal Network Security Engineer to join our Enterprise Information Security Team. You will be responsible for implementing and maintaining a robust security posture across Gartner's diverse technology landscape. Your expertise in security best practices, network security, data protection, and endpoint security will be essential in protecting Gartner's assets and ensuring the confidentiality, integrity, and availability of our information.

A Principal Network Security Engineer is a senior-level position that involves overseeing security strategies and initiatives across an organization. This role requires extensive experience and expertise in cybersecurity, as well as the ability to lead teams and influence organizational security policies.

What you will do:

• Collaborate with Leadership on the long-term strategy for network security, partnering with key resources to execute against that strategy.

• Overseeing security architecture and design for complex systems.

• Engaging with stakeholders to align security initiatives with business goals.

• Collaborate and mentor with a small team of associates focused on network security and security automation.

• Design, implement, and optimize security solutions that align with industry best practices and Gartner's specific needs.

• Manage and advise on a variety of security tools and platforms both current state and future state (e.g., NGFW firewalls, cloud network security,).

• Conducting advanced threat modeling and risk assessments.

• Contribute to a number of measurable strategic goals and priorities demonstrated through a mature metrics framework.

• Stay abreast of the latest security technologies and trends to identify opportunities for enhancing Gartner's security controls.

• Collaborate with cross-functional teams to assess security risks, identify risk, prioritize, and develop remediation plans.

• Participate in security incident response activities, providing technical expertise and leadership.

• Develop and maintain comprehensive documentation of security processes, procedures, and configurations.

• Apply expert knowledge to solve complex business/technical issues.

• Take ownership of assignments and drive them to completion.

• Take part in shaping the future of our Information Security organization.

What you will need:

• Proficiency in Network security protocols and technologies. Proven experience in implementing and managing modern network security platforms like Zscaler, NGFW Firewalls, or similar (SaaS and Cloud).

• Experience with Cloud infrastructure (IaaS & PaaS) in Azure or AWS.

• Experience with Micro-Segmentation and Zero-Trust principals

• Advanced knowledge of security architecture and design principles.

• Strategic thinking and the ability to influence organizational change.

• Experience in deploying NGFW's using Infrastructure as Code (IAC) with automation tool (Terraform, Ansible, Chef, Puppet, etc.).

• Strong understanding of security principles, common attack vectors, and mitigation strategies.

• In-depth knowledge of network security, data protection, intrusion detection systems, and Encryption. Prior success in leading complex technology development, managing priorities, concept-to-implementation execution, and delivering market-leading technology solutions. Expertise in threat intelligence and Incident response. Excellent communication skills for effective interaction with technical and business stakeholders.

• A proactive and adaptable approach to problem-solving, with a focus on continuous improvement.

• Familiarity with technical security controls, guidelines, and frameworks outlined by standards such as SOC2, ISO 27001, NIST 800-53.

Nice to have:

• Industry certifications (e.g., CISSP, CCSP, CCNP Security, AWS or Azure Security)

• Experience with Web Application Firewalls (WAF) policies for new and existing web applications.

• Software engineering skills in languages like Python, C#, Java, .Net, Node

• Experience with bot architecture and design

• Preferred skills in Gsuite, Microsoft Office, JIRA, and Confluence.

Who you are:

• Degree in Computer Science, Information Security, or a related field.

• Excellent communication, collaboration, and interpersonal skills.

• Strong problem-solving, critical thinking, and analytical abilities.

• Ability to work independently and collaboratively within a team.

• Ability to build trusting, meaningful relationships with peers, stakeholders, partners and suppliers.

• Results-oriented mindset with a focus on delivering high-quality solutions.

• Detail-oriented with a passion for maintaining a high level of accuracy and documentation.

• Self-motivated and driven to stay updated with the latest security trends, technologies, and best practices.

• Ability to adapt to a fast-paced and ever-changing security landscape.

• Strong commitment to professionalism, ethics, and maintaining the confidentiality of sensitive information.

Don't meet every single requirement? We encourage you to apply anyway. You might just be the right candidate for this, or other roles.

What you will get:

• Competitive Compensation Package

• Ongoing mentorship and apprenticeship; Leadership courses, development programs, technical courses, certification opportunities and more!

• 20+ PTO days plus holidays and floating holidays in your first year

• Extensive Medical, Dental and Vision plans

• Hybrid environment with flexibility, remote work

• Parental leave

• Gartner Gives Charity Match

• Employee Assistance Program (EAP)

• Employee Stock Purchase Plan

• Health and wellness related allowance programs

• 401K with corporate match, immediate vesting

• Collaborative, team-oriented culture that embraces diversity

• Professional development and unlimited growth opportunities

#LI-Hybrid

#LI-TW1

Who are we?

At Gartner, Inc. (NYSE:IT), we guide the leaders who shape the world.

Our mission relies on expert analysis and bold ideas to deliver actionable, objective insight, helping enterprise leaders and their teams succeed with their mission-critical priorities.

Since our founding in 1979, we've grown to more than 21,000 associates globally who support ~14,000 client enterprises in ~90 countries and territories. We do important, interesting and substantive work that matters. That's why we hire associates with the intellectual curiosity, energy and drive to want to make a difference. The bar is unapologetically high. So is the impact you can have here.

What makes Gartner a great place to work?

Our sustained success creates limitless opportunities for you to grow professionally and flourish personally. We have a vast, virtually untapped market potential ahead of us, providing you with an exciting trajectory long into the future. How far you go is driven by your passion and performance.

We hire remarkable people who collaborate and win as a team. Together, our singular, unifying goal is to deliver results for our clients.

Our teams are inclusive and composed of individuals from different geographies, cultures, religions, ethnicities, races, genders, sexual orientations, abilities and generations.

We invest in great leaders who bring out the best in you and the company, enabling us to multiply our impact and results. This is why, year after year, we are recognized worldwide as a great place to work.

What do we offer?

Gartner offers world-class benefits, highly competitive compensation and disproportionate rewards for top performers.

In our hybrid work environment, we provide the flexibility and support for you to thrive - working virtually when it's productive to do so and getting together with colleagues in a vibrant community that is purposeful, engaging and inspiring.

Ready to grow your career with Gartner? Join us.

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• Experience providing network and security solutions at a high technical level.
• Comfortable with Routers, Switches, Firewalls and wide area communications.
• Experience with some or all of the following: Aruba/HPE, Palo Alto, Fortinet, Arista, and Cisco
• Excellent interpersonal, written and verbal communication skills.
• Working under pressure, multitasking between simultaneous projects and responding to deadlines.
• Flexible, tenacious, highly self-motivated, and committed to achieving goals.

• Smart, flexible, diligent, and professional - willing to work hard but have fun doing it.
• Able to comprehend and understand network equipment, and to identify issues that may be causing problems.
• Maintain a sense of urgency and goal orientation.
• Straightforward, honest, team player.
• You love learning and you love technology.