📍 Job Overview

Job Title: Network Engineer L3
Company: NTT DATA
Location: Ho Chi Minh City, Vietnam & Hà Nội, Vietnam
Job Type: On-site, Full-time
Category: Network Infrastructure
Date Posted: 2025-07-28
Experience Level: Mid-Senior Level (5-10 years)

🚀 Role Summary

Key Responsibilities: Lead in providing managed services, proactively identify and resolve technical incidents, manage high-complexity tickets, mentor junior team members, ensure SLA compliance, and drive operational improvements.
Key Technologies: Pulse Secure SSL VPN, Virtual Juniper, Palo Alto, Fortinet Firewalls, Cisco Nexus switches, ASr and ISr routers, Cisco ACS, ISE, Meraki switches and access points, enterprise network architecture, routing protocols (BGP, OSPF, EIGRP), network address translation, and troubleshooting uplinks to ISPs for DIA, MPLS, and P2P circuits.

📝 Enhancement Note: This role requires a strong background in enterprise-level network infrastructure and advanced certifications in at least one or two of the mentioned technologies. The candidate should be comfortable working in a dynamic environment and have excellent communication skills to interact with diverse teams and clients.

💻 Primary Responsibilities

Managed Services: Proactively identify and resolve technical incidents, ensuring all service level agreement (SLA) conditions are met.
Ticket Management: Manage high-complexity tickets, conduct thorough analyses, and provide resolutions to complex issues.
Mentoring: Coach and mentor junior team members, creating knowledge articles for frequent tasks/issues and training them to execute those tasks.
Incident Resolution: Investigate third-line support calls to find root causes and solutions, ensuring minimal downtime and optimal performance.
Onsite Support: Provide onsite technical support and field engineering services to clients, working closely with third-party vendors for issue escalation.
Process Improvement: Drive operational improvements and optimize work processes, including opportunities for automation.
Project Management: Manage and implement projects within the technology domain, deliver disaster recovery functions and tests, and improve the quality of incidents and service requests through random monthly reviews.

📝 Enhancement Note: The candidate should have strong planning and project management abilities, taking changing circumstances into account. They should also be adaptable to changing circumstances and able to work diligently under pressure.

🎓 Skills & Qualifications

Education: A bachelor's degree in IT/Computing or equivalent work experience is required.

Experience: 5-10 years of experience in network engineering, with a strong focus on enterprise-level network infrastructure and advanced certifications in relevant technologies.

Required Skills:

Proficiency in Pulse Secure SSL VPN, Virtual Juniper, Palo Alto, Fortinet Firewalls, Cisco Nexus switches, ASr and ISr routers, Cisco ACS, ISE, Meraki switches and access points, enterprise network architecture, routing protocols (BGP, OSPF, EIGRP), network address translation, and troubleshooting uplinks to ISPs for DIA, MPLS, and P2P circuits.
Advanced certifications on at least one or two of the mentioned technologies.
Excellent planning and project management abilities.
Strong communication skills, with the ability to work across different cultures and social groups.
Effective active listening skills.
A client-focused approach, prioritizing their requirements and creating positive experiences.
Adaptability to changing circumstances and the ability to work diligently under pressure.

Preferred Skills:

Experience in managed services and third-line support.
Familiarity with automation tools and processes.
Knowledge of disaster recovery functions and tests.
Ability to manage and implement projects within the technology domain.

📝 Enhancement Note: While not explicitly stated, having experience with cloud-based network infrastructure and familiarity with Infrastructure as Code (IaC) tools would be beneficial for this role, as many organizations are moving towards hybrid and multi-cloud environments.

📊 Portfolio & Project Requirements

Portfolio Essentials: Not applicable for this role, as it focuses on technical skills and experience rather than a portfolio of projects.
Technical Documentation: Candidates should be prepared to discuss their experience with network infrastructure, managed services, and third-line support. They should also be able to provide examples of how they have driven operational improvements and optimized work processes.

💵 Compensation & Benefits

Salary Range: The salary range for this role is estimated to be between VND 1,200,000,000 - VND 1,800,000,000 per year (USD 50,000 - USD 75,000) based on market research and the required experience level. This estimate is inclusive of base salary and may include bonuses and other forms of compensation.

Benefits:

Competitive benefits package, including health insurance, retirement plans, and paid time off.
Opportunities for professional development and career growth within a global organization.
A dynamic work environment that encourages collaboration and innovation.

Working Hours: The standard workweek is 40 hours, with the possibility of working overtime as needed to meet project deadlines or resolve critical incidents.

📝 Enhancement Note: The salary range provided is an estimate based on market research and may vary depending on the candidate's experience, skills, and the company's internal compensation structure. The benefits package may also vary depending on the candidate's location and employment status.

🎯 Team & Company Context

🏢 Company Culture

Industry: Information Technology and Services

Company Size: Large (10,001+ employees)

Founded: 1967

Team Structure:

The Network Engineering team is part of the broader IT Infrastructure organization, working closely with other teams such as Cloud Services, Security, and IT Operations.
The team is structured with multiple levels, including junior, mid-level, and senior network engineers, as well as team leads and managers.
The team follows a matrix reporting structure, with members reporting to both the IT Infrastructure organization and the respective business units they support.

Development Methodology:

The team follows Agile methodologies, with regular sprint planning, code reviews, and testing processes in place.
They use various tools for project management, code review, and collaboration, such as Jira, Git, and Confluence.
The team emphasizes continuous learning and improvement, with regular training and development opportunities.

Company Website: NTT DATA Global

📝 Enhancement Note: NTT DATA is a global organization with a strong focus on innovation and digital transformation. The company values diversity, inclusion, and continuous learning, providing a supportive environment for career growth and development.

📈 Career & Growth Analysis

Network Engineer L3 Career Level: This role is at the mid-senior level within the network engineering career path. The candidate will be responsible for managing high-complexity tickets, mentoring junior team members, and driving operational improvements. They will also have the opportunity to manage and implement projects within the technology domain.

Reporting Structure: The candidate will report directly to the Network Engineering Manager or Team Lead, with dotted-line reporting to the respective business unit they support.

Technical Impact: The candidate will have a significant impact on the performance, availability, and security of the company's network infrastructure. They will work closely with other teams to ensure that the network meets the needs of the business and supports the company's digital transformation initiatives.

Growth Opportunities:

Technical Growth: The candidate will have the opportunity to gain experience with new technologies and tools, as well as to develop their skills in project management, mentoring, and leadership.
Career Progression: With experience and demonstrated success, the candidate may be able to progress to senior network engineering roles, team lead positions, or even management roles within the IT Infrastructure organization.
Cross-functional Opportunities: The candidate may also have the opportunity to work on cross-functional projects or to move into related roles within the broader IT organization, such as cloud engineering or cybersecurity.

📝 Enhancement Note: Career progression within NTT DATA is based on a combination of factors, including experience, performance, and potential. The company offers various training and development opportunities to support employees in achieving their career goals.

🌐 Work Environment

Office Type: The company has multiple offices in Vietnam, with a mix of open-plan and private offices. The work environment is collaborative and inclusive, with a focus on knowledge sharing and continuous learning.

Office Location(s): Ho Chi Minh City and Hà Nội, Vietnam

Workspace Context:

Collaboration: The workspace encourages collaboration and teamwork, with dedicated spaces for meetings, brainstorming sessions, and informal discussions.
Technology: The workspace is equipped with modern technology, including high-speed internet, multiple monitors, and specialized software tools for network engineering tasks.
Flexibility: The company offers flexible work arrangements, including remote work options and flexible hours, to support work-life balance.

Work Schedule: The standard workweek is 40 hours, with the possibility of working overtime as needed to meet project deadlines or resolve critical incidents. The company offers flexible work arrangements, including remote work options and flexible hours, to support work-life balance.

📝 Enhancement Note: The work environment at NTT DATA is designed to support the company's culture of collaboration, innovation, and continuous learning. The company offers a range of benefits and perks to support employee well-being and work-life balance.

📄 Application & Technical Interview Process

Interview Process:

Phone/Screening Interview: A brief phone or video call to discuss the candidate's background, experience, and fit for the role. This may include technical questions to assess the candidate's knowledge of network infrastructure and managed services.
On-site Interview: A face-to-face interview at one of the company's offices in Vietnam. This may include a tour of the office and an opportunity to meet with team members and other stakeholders.
Technical Assessment: A hands-on assessment of the candidate's technical skills, including network configuration, troubleshooting, and problem-solving exercises.
Final Interview: A final interview with the hiring manager or a panel of stakeholders to discuss the candidate's fit for the role, career aspirations, and any remaining questions.

Portfolio Review Tips: Not applicable for this role, as it focuses on technical skills and experience rather than a portfolio of projects.

Technical Challenge Preparation:

Technical Fundamentals: Brush up on your knowledge of network infrastructure, routing protocols, network address translation, and troubleshooting uplinks to ISPs for DIA, MPLS, and P2P circuits.
Hands-on Experience: Practice network configuration, troubleshooting, and problem-solving exercises to build your confidence and demonstrate your technical skills.
Company-specific Knowledge: Research NTT DATA's products, services, and industry focus to understand the company's unique needs and priorities.

ATS Keywords: [Provided in the "Technology Stack & Web Infrastructure" section]

📝 Enhancement Note: The interview process at NTT DATA is designed to assess the candidate's technical skills, cultural fit, and potential for growth within the organization. The company values diversity, inclusion, and continuous learning, and seeks candidates who are passionate about technology, collaborative, and committed to their professional development.

🛠 Technology Stack & Web Infrastructure

Network Infrastructure:

Pulse Secure SSL VPN
Virtual Juniper
Palo Alto
Fortinet Firewalls
Cisco Nexus switches
ASr and ISr routers
Cisco ACS
ISE
Meraki switches and access points
Enterprise network architecture
Routing protocols (BGP, OSPF, EIGRP)
Network address translation
Troubleshooting uplinks to ISPs for DIA, MPLS, and P2P circuits

Monitoring & Management Tools:

[To be determined based on company-specific information]

Collaboration & Productivity Tools:

Jira
Confluence
Git
Microsoft Office Suite
Google Workspace

Programming & Scripting Languages:

[To be determined based on company-specific information]

📝 Enhancement Note: The technology stack for this role is focused on enterprise-level network infrastructure. The candidate should have a strong background in network engineering and experience with the mentioned technologies. Familiarity with cloud-based network infrastructure and Infrastructure as Code (IaC) tools would be beneficial.

👥 Team Culture & Values

Network Engineering Team Values:

Expertise: The team values technical excellence and continuous learning, with a focus on staying up-to-date with the latest trends and best practices in network engineering.
Collaboration: The team emphasizes collaboration and knowledge sharing, with a focus on working together to achieve common goals and support each other's professional development.
Adaptability: The team values adaptability and flexibility, with a focus on responding to changing circumstances and finding innovative solutions to technical challenges.
Customer Focus: The team is committed to providing exceptional service to clients, with a focus on understanding their unique needs and priorities and delivering high-quality solutions that meet or exceed their expectations.

Collaboration Style:

Cross-functional Integration: The team works closely with other teams within the IT Infrastructure organization, as well as with business units and other stakeholders, to ensure that network infrastructure meets the needs of the business and supports the company's digital transformation initiatives.
Code Review Culture: The team follows a code review process to ensure the quality and consistency of network configurations and to facilitate knowledge sharing and continuous learning.
Mentoring & Knowledge Sharing: The team encourages mentoring and knowledge sharing, with regular training and development opportunities to support the professional growth of its members.

📝 Enhancement Note: The network engineering team at NTT DATA is committed to technical excellence, collaboration, and continuous learning. The team values adaptability and flexibility, with a focus on responding to changing circumstances and finding innovative solutions to technical challenges.

⚡ Challenges & Growth Opportunities

Technical Challenges:

High-complexity Tickets: The candidate will be responsible for managing high-complexity tickets, requiring strong technical skills and the ability to conduct thorough analyses and provide resolutions to complex issues.
Incident Resolution: The candidate will be expected to investigate third-line support calls to find root causes and solutions, ensuring minimal downtime and optimal performance.
Process Improvement: The candidate will be responsible for driving operational improvements and optimizing work processes, including opportunities for automation.

Learning & Development Opportunities:

Technical Training: The company offers regular training and development opportunities to support the professional growth of its employees, including technical workshops, webinars, and online courses.
Conferences & Events: The company encourages employees to attend industry conferences and events to stay up-to-date with the latest trends and best practices in network engineering.
Mentorship & Leadership Development: The company offers mentorship and leadership development programs to support the career growth of its employees, including one-on-one coaching, workshops, and online resources.

📝 Enhancement Note: The technical challenges for this role require a strong background in network engineering and experience with enterprise-level network infrastructure. The learning and development opportunities at NTT DATA are designed to support the professional growth of its employees and to help them achieve their career goals.

💡 Interview Preparation

Technical Questions:

Network Infrastructure: Be prepared to discuss your experience with network infrastructure, routing protocols, network address translation, and troubleshooting uplinks to ISPs for DIA, MPLS, and P2P circuits.
Managed Services: Be prepared to discuss your experience with managed services and third-line support, including proactively identifying and resolving technical incidents and ensuring compliance with service level agreements.
Problem-solving: Be prepared to discuss your problem-solving skills and your ability to conduct thorough analyses and provide resolutions to complex issues.

Company & Culture Questions:

Company-specific Knowledge: Research NTT DATA's products, services, and industry focus to understand the company's unique needs and priorities.
Team Dynamics: Be prepared to discuss your ability to work collaboratively and to support the professional development of junior team members.
Adaptability: Be prepared to discuss your ability to adapt to changing circumstances and to find innovative solutions to technical challenges.

Technical Challenge Preparation:

Hands-on Exercises: Practice network configuration, troubleshooting, and problem-solving exercises to build your confidence and demonstrate your technical skills.
Company-specific Knowledge: Research NTT DATA's products, services, and industry focus to understand the company's unique needs and priorities.
Portfolio Presentation: While not explicitly stated, having a portfolio of relevant projects or case studies can help demonstrate your technical skills and experience.

ATS Keywords: [Provided in the "Technology Stack & Web Infrastructure" section]

📝 Enhancement Note: The interview process at NTT DATA is designed to assess the candidate's technical skills, cultural fit, and potential for growth within the organization. The company values diversity, inclusion, and continuous learning, and seeks candidates who are passionate about technology, collaborative, and committed to their professional development.

📌 Application Steps

To apply for this Network Engineer L3 position at NTT DATA:

Submit Your Application: Click on the application link provided in the job listing and complete the online application form.
Prepare Your Portfolio: While not explicitly stated, having a portfolio of relevant projects or case studies can help demonstrate your technical skills and experience. Focus on projects that showcase your expertise in network infrastructure, managed services, and problem-solving.
Research the Company: Familiarize yourself with NTT DATA's products, services, and industry focus to understand the company's unique needs and priorities. This will help you tailor your application and interview responses to the company's specific context.
Prepare for Technical Interviews: Brush up on your knowledge of network infrastructure, routing protocols, network address translation, and troubleshooting uplinks to ISPs for DIA, MPLS, and P2P circuits. Practice network configuration, troubleshooting, and problem-solving exercises to build your confidence and demonstrate your technical skills.
Prepare for Company & Culture Interviews: Research NTT DATA's company culture, values, and team dynamics to understand the company's unique needs and priorities. Be prepared to discuss your ability to work collaboratively, support the professional development of junior team members, and adapt to changing circumstances.

⚠️ Important Notice: This enhanced job description includes AI-generated insights and network engineering industry-standard assumptions. All details should be verified directly with the hiring organization before making application decisions.

Network Engineer L3