Principal Network Infrastructure & Security Architect

LTM; Irving (TX); Hybrid; USD 180,000 - 240,000; Full time

Benefits offered by this job

Medical plan

Disability coverage

Company match 401k

Insurance

Parental leave

Job summary

LTM is seeking a Principal Network Infrastructure & Security Architect in Irving, TX (Hybrid). You will lead architecture across SDN, multi-cloud, and zero-trust initiatives to enable secure, high-performance enterprise networks.

The role requires deep experience in large-scale modernization, strong leadership, and the ability to produce end-to-end design artifacts. Excellent communication and collaboration are essential for success.

Qualifications

• 15+ years in software and infrastructure architecture.
• 5+ years in principal/lead architect roles delivering large-scale solutions.
• Proven legacy modernization and cloud-native migration experience.
• Experience with Grafana, Orion, ServiceNow, and BMC.

Responsibilities

• Architect SDN, global load balancing, and hybrid connectivity across data centers and multi-clouds.
• Champion Zero-Trust Network Architecture with micro-segmentation and API gateway topologies.
• Design low-latency topologies and resilient traffic engineering for mission-critical flows.
• Demonstrate strong knowledge of F5 Big-IP, NGINX, PSG, Data Power, HAProxy, and APIGEE.

Skills

Enterprise architecture

Security architecture

SDN design

Zero-Trust

Leadership

Education

Master’s degree

Tools

Grafana

Orion

ServiceNow

BMC

Job description

LTM is a global technology consulting and digital solutions company that enables enterprises across industries to reimagine business models, accelerate innovation, and maximize growth by harnessing digital technologies. As a digital transformation partner to more than 700+ clients, LTM brings extensive domain and technology expertise to help drive superior competitive differentiation, customer experiences, and business outcomes in a converging world. Powered by nearly 90,000 talented and entrepreneurial professionals across more than 30 countries, LTM a Larsen & Toubro Group company combines the industry-acclaimed strengths of erstwhile Larsen and Toubro Infotech and Mindtree in solving the most complex business challenges and delivering transformation at scale. For more information, please visit www.ltm.com

Title: Principal Network Infrastructure & Security Architect

Location: Irving, Tx (Hybrid)

This role does not offer Visa Sponsorship. Applicants must have Independent Authorization to work in the United States.

Enterprise Networking, Hybrid Connectivity & Zero-Trust

• Architect software-defined networking (SDN), global load balancing, and hybrid connectivity fabrics across data centers and multi-cloud providers (DirectConnect, ExpressRoute, VPN meshes, Transit Gateways).
• Champion Zero-Trust Network Architecture (ZTNA), micro-segmentation, ingress/egress perimeter controls, and API Gateway topologies (Apigee, Kong, Envoy).
• Design low-latency network topologies, DNS routing strategies, and resilient distributed traffic engineering for mission-critical trading or core operational flows.
• Strong understanding of WIP, VIP, Load Balancer – F5 Big IP, NGINX, PSG, Data Power, HaProxy, APIGEE.

Experience & Background

• 15+ years of progressive experience in software engineering, systems design, infrastructure engineering, and enterprise architecture.
• 5+ years in a Principal Architect, Chief Architect, or equivalent technical leadership capacity delivering large-scale distributed enterprise solutions.
• Proven track record of spearheading large-scale legacy modernization initiatives, such as monolithic to microservices/cloud-native migration and data center to hybrid-cloud transformation.
• Experience using tools like Grafana, Orion, Service Now, BMC is required.
• Ability to work independently under pressure, multi-task, show good temperament to design criticism, and manage tight timelines.
• Strong communication skills, both speaking and writing.
• Ability to create detailed end-to-end design artifacts using Visio, Draw.io, PowerPoint.

Education & Professional Certifications

• Master’s degree in Computer Science, Computer Engineering, Information Technology, or equivalent practical experience.
• Preferred Certifications or equivalent demonstrated mastery:
• AWS Certified Solutions Architect – Professional / GCP Professional Cloud Architect / Azure Solutions Architect Expert
• TOGAF or Zachman Framework certification (advantageous)

Benefits/perks listed below may vary depending on the nature of your employment with LTM (LTIM):

Benefits and Perks:

• Medical Plan Covering Medical, Dental, Vision
• Term and Long-Term Disability Coverage
• Plan with Company match.
• Insurance
• Paternity and Maternity Leave

The range displayed on each job posting reflects the minimum and maximum salary target for the position across all US locations. Within the range, individual pay is determined by work location and job level and additional factors including job-related skills, experience, and relevant education or training. Depending on the position offered, other forms of compensation may be provided as part of overall compensation like an annual performance-based bonus, sales incentive pay and other forms of bonus or variable compensation.

Disclaimer:

The compensation and benefits information provided herein is accurate as of the date of this posting.

LTM is an equal opportunity employer that is committed to diversity in the workplace. Our employment decisions are made without regard to race, color, creed, religion, sex (including pregnancy, childbirth or related medical conditions), gender identity or expression, national origin, ancestry, age, family-care status, veteran status, marital status, civil union status, domestic partnership status, military service, handicap or disability or history of handicap or disability, genetic information, atypical hereditary cellular or blood trait, union affiliation, affectional or sexual orientation or preference, or any other characteristic protected by applicable federal, state, or local law, except where such considerations are bona fide occupational qualifications permitted by law.

Safe return to office:

In order to comply with LTM s company COVID-19 vaccine mandate, candidates must be able to provide proof of full vaccination against COVID-19 before or by the date of hire. Alternatively, one may submit a request for reasonable accommodation from LTM s COVID-19 vaccination mandate for approval, in accordance with applicable state and federal law, by the date of hire. Any request is subject to review through LTM s applicable processes.