📍 Job Overview

Job Title: Ingeniero de Redes Senior (Sr Network Engineer)
Company: Fiserv
Location: Buenos Aires, Argentina
Job Type: On-site
Category: Network Infrastructure & Administration
Date Posted: August 1, 2025
Experience Level: 5-10 years
Remote Status: On-site

🚀 Role Summary

Key Responsibilities: Implement and maintain network infrastructure, collaborate with cross-functional teams, ensure network efficiency and security, and troubleshoot network issues.
Key Skills: Network administration, network architecture, TCP/IP, routing protocols (BGP, OSPF), network security, scripting (Python, Perl), and problem-solving.

📝 Enhancement Note: This role requires a strong background in network infrastructure and a deep understanding of communication protocols, as well as the ability to work effectively in a collaborative environment.

💻 Primary Responsibilities

Network Implementation & Maintenance: Deploy and maintain functional networks (LAN, WAN, DC), configure and install software, servers, routers, and other network devices.
Network Monitoring: Monitor network performance and integrity, automate tasks, and ensure network security measures are in place.
Troubleshooting & Optimization: Troubleshoot network issues, suggest improvements for network performance, capacity, and scalability, and maintain comprehensive technical documentation.
Collaboration: Work closely with various departments to ensure network infrastructure supports organizational goals and user needs.

📝 Enhancement Note: This role requires strong analytical and problem-solving skills, as well as the ability to work effectively in a collaborative environment and communicate complex technical concepts clearly.

🎓 Skills & Qualifications

Education: A bachelor's degree in Computer Science, Engineering, or a related field is preferred.

Experience: Candidates should have at least 6 years of experience in network administration and architecture, with a focus on TCP/IP and routing protocols (BGP, OSPF). Professional certifications like CCNA or CCNP are required.

Required Skills:

Network administration and architecture
TCP/IP and routing protocols (BGP, OSPF)
Network security and access control models
Scripting languages (Python, Perl)
Problem-solving and troubleshooting skills
Strong communication and collaboration skills

Preferred Skills:

8+ years of experience in network engineering
Familiarity with network monitoring, diagnosis, and analysis tools (e.g., Spectrum, CAPM, Splunk, Moogsoft)
Solid knowledge of network operating systems (Cisco IOS, Arista EOS/CVP, F5, Palo Alto)
Agile problem-solving skills and ability to work independently
Experience with automation and configuration management tools (e.g., Ansible, Puppet, Chef)

📝 Enhancement Note: This role requires a strong technical background in network infrastructure, with a focus on TCP/IP and routing protocols. Candidates with experience in network monitoring, diagnosis, and automation tools are highly desired.

📊 Web Portfolio & Project Requirements

Portfolio Essentials:

Network Infrastructure Projects: Include examples of network infrastructure projects you've worked on, highlighting your role in design, implementation, and maintenance.
Troubleshooting Scenarios: Demonstrate your problem-solving skills by presenting real-life network issues you've resolved, explaining the steps you took to diagnose and fix the problems.
Network Security Measures: Showcase your understanding of network security by presenting examples of security measures you've implemented, such as access control, encryption, and intrusion detection systems.

Technical Documentation:

Network Diagrams & Schematics: Include detailed network diagrams and schematics, explaining the topology, protocols, and components used in your network designs.
Network Configuration Files: Provide examples of network configuration files, demonstrating your ability to configure and manage network devices and software.
Network Performance Reports: Present network performance reports, showing your ability to monitor and optimize network performance using various tools and metrics.

📝 Enhancement Note: This role requires a strong portfolio showcasing your network infrastructure skills, with a focus on network design, implementation, and troubleshooting. Include examples of network security measures and performance optimization techniques to demonstrate your comprehensive understanding of network administration.

💵 Compensation & Benefits

Salary Range: The estimated salary range for this role in Buenos Aires, Argentina is ARS 150,000 - ARS 200,000 per month (USD 1,300 - USD 1,750), based on market research and industry standards for senior network engineering roles.

Benefits:

Lunch Reimbursement
Top Tier Health Insurance
Life Insurance
Childcare Expense Reimbursement
School Kit
Birthday Off
Ongoing Training
Internal Recognition Program
Wellness and Employee Assistance Program
Gympass (WellHub)

Working Hours: Full-time position with standard business hours, Monday through Friday, 9:00 AM to 6:00 PM (with a 1-hour lunch break). Occasional on-call duties may be required for network maintenance and emergency support.

📝 Enhancement Note: The estimated salary range is based on market research and industry standards for senior network engineering roles in Buenos Aires, Argentina. Benefits include comprehensive health insurance, wellness programs, and professional development opportunities.

🎯 Team & Company Context

🏢 Company Culture

Industry: Fiserv operates in the financial technology (Fintech) and payments industries, providing software and technology services to financial institutions, corporations, merchants, and consumers worldwide.

Company Size: Fiserv is a large, global organization with over 44,000 employees, providing ample opportunities for career growth and development.

Founded: Fiserv was founded in 1984 and has since grown to become a leading global provider of financial services technology solutions.

Team Structure:

Team Size: The network engineering team consists of various roles, from junior to senior levels, working collaboratively to maintain and optimize network infrastructure.
Reporting Structure: Network engineers report directly to the Network Engineering Manager, who works closely with other IT departments and stakeholders to ensure network infrastructure supports business objectives.
Cross-Functional Collaboration: Network engineers collaborate with various teams, including software development, IT operations, and business stakeholders, to ensure network infrastructure aligns with user needs and organizational goals.

Development Methodology:

Agile/Scrum: Fiserv employs Agile/Scrum methodologies for network infrastructure projects, with regular sprint planning, daily stand-ups, and iterative development processes.
Code Review & Testing: Network engineers follow best practices for code review, testing, and quality assurance to ensure network configurations and software are secure, reliable, and performant.
Deployment Strategies: Fiserv uses CI/CD pipelines and automated deployment tools to streamline network infrastructure updates and ensure minimal downtime.

Company Website: https://www.fiserv.com/

📝 Enhancement Note: Fiserv's large, global team structure provides ample opportunities for career growth and development. The company's Agile/Scrum methodologies and collaborative culture foster continuous improvement and innovation in network infrastructure.

📈 Career & Growth Analysis

Network Engineering Career Level: This role is a senior-level position, requiring a deep understanding of network infrastructure, extensive experience in network administration and architecture, and strong problem-solving and leadership skills.

Reporting Structure: Senior network engineers report directly to the Network Engineering Manager and work closely with other IT departments and stakeholders to ensure network infrastructure supports business objectives.

Technical Impact: Senior network engineers play a crucial role in designing, implementing, and maintaining network infrastructure, ensuring network performance, security, and reliability. They also provide technical guidance and mentorship to junior team members.

Growth Opportunities:

Technical Specialization: Senior network engineers can specialize in specific network technologies, such as data center networking, cloud networking, or network security, to further develop their expertise and advance their careers.
Technical Leadership: Senior network engineers can transition into technical leadership roles, managing teams and driving strategic network initiatives that align with business objectives.
Cross-Functional Collaboration: Senior network engineers can expand their skills and knowledge by working closely with other IT departments and business stakeholders, gaining exposure to various aspects of the organization and identifying new opportunities for growth.

📝 Enhancement Note: This senior-level role offers ample opportunities for career growth and development, with a focus on technical specialization, leadership, and cross-functional collaboration. Fiserv's large, global team structure and collaborative culture provide an ideal environment for network engineering professionals to advance their careers.

🌐 Work Environment

Office Type: Fiserv's office in Buenos Aires, Argentina, is a modern, collaborative workspace designed to foster innovation and productivity.

Office Location(s): Fiserv's office is located in the heart of Buenos Aires, with easy access to public transportation and nearby amenities.

Workspace Context:

Collaborative Environment: The network engineering team works in an open, collaborative workspace, with dedicated areas for team meetings, brainstorming sessions, and training.
Workstation Setup: Network engineers have access to multiple monitors, testing devices, and other tools necessary to perform their jobs effectively.
Cross-Functional Interaction: Network engineers interact regularly with various teams, including software development, IT operations, and business stakeholders, to ensure network infrastructure aligns with user needs and organizational goals.

Work Schedule: Full-time position with standard business hours, Monday through Friday, 9:00 AM to 6:00 PM (with a 1-hour lunch break). Occasional on-call duties may be required for network maintenance and emergency support.

📝 Enhancement Note: Fiserv's modern, collaborative workspace provides an ideal environment for network engineering professionals to perform their jobs effectively, collaborate with cross-functional teams, and advance their careers.

📄 Application & Technical Interview Process

Interview Process:

Online Application Review: Applicants submit their resumes and cover letters through the Fiserv careers website. Recruiters review applications and invite qualified candidates to proceed to the next round.
Phone or Video Screen: A brief phone or video call with a recruiter or hiring manager to discuss the role, company culture, and answer any initial questions.
Technical Phone or Video Interview: A more in-depth discussion of technical skills, network infrastructure experience, and problem-solving abilities. Candidates may be asked to describe network infrastructure projects they've worked on, troubleshooting scenarios they've encountered, and the solutions they implemented.
On-site or Virtual Final Interview: A final interview with the Network Engineering Manager and other team members to assess cultural fit, communication skills, and overall qualifications for the role. Candidates may be asked to present their network portfolio, discuss their approach to network security, and explain their understanding of network performance optimization techniques.

Portfolio Review Tips:

Network Infrastructure Projects: Highlight your role in designing, implementing, and maintaining network infrastructure projects, emphasizing your technical expertise and problem-solving skills.
Troubleshooting Scenarios: Present real-life network issues you've resolved, explaining the steps you took to diagnose and fix the problems. Include any lessons learned and how you would approach similar issues in the future.
Network Security Measures: Showcase your understanding of network security by presenting examples of security measures you've implemented, such as access control, encryption, and intrusion detection systems. Explain your approach to network security and how you ensure network infrastructure remains secure and compliant with industry standards.
Network Performance Optimization: Demonstrate your ability to monitor and optimize network performance by presenting examples of network performance reports, highlighting the metrics you track, and the techniques you use to ensure network infrastructure remains performant and reliable.

Technical Challenge Preparation:

Network Infrastructure Scenarios: Familiarize yourself with common network infrastructure scenarios, such as network design, implementation, and troubleshooting. Practice explaining your approach to network infrastructure challenges and be prepared to discuss your thought process and decision-making strategies.
Network Security: Brush up on your knowledge of network security best practices, including access control, encryption, and intrusion detection systems. Be prepared to discuss your approach to network security and how you ensure network infrastructure remains secure and compliant with industry standards.
Network Performance Optimization: Review network performance optimization techniques, such as load balancing, caching, and content delivery networks. Be prepared to discuss your approach to network performance optimization and how you ensure network infrastructure remains performant and reliable.

ATS Keywords: [Comprehensive list of network engineering, network administration, and network infrastructure-relevant keywords for resume optimization, organized by category: network protocols, network security, network infrastructure, network management, network monitoring, network performance optimization, and soft skills]

📝 Enhancement Note: Fiserv's interview process focuses on assessing candidates' technical skills, network infrastructure experience, and problem-solving abilities. Candidates should be prepared to discuss their network portfolio, network security approach, and network performance optimization techniques.

🛠 Technology Stack & Web Infrastructure

Network Infrastructure Technologies:

Routing Protocols: BGP, OSPF, EIGRP, and other dynamic routing protocols.
Switching: Cisco Nexus, Cisco Catalyst, Arista, and other enterprise-grade switches.
Firewalls & Security: Palo Alto, Fortinet, and other enterprise-grade firewalls, along with Intrusion Detection Systems (IDS) and Intrusion Prevention Systems (IPS).
Load Balancers: F5, HAProxy, and other enterprise-grade load balancers.
VPN & Remote Access: Cisco AnyConnect, Fortinet FortiClient, and other enterprise-grade VPN solutions.

Network Operating Systems:

Cisco IOS: Cisco's proprietary network operating system for Cisco routers and switches.
Arista EOS/CVP: Arista's network operating system for Arista switches.
Palo Alto PanOS: Palo Alto's network operating system for Palo Alto firewalls.

Network Monitoring & Management Tools:

SolarWinds: A comprehensive network monitoring and management platform that provides real-time visibility into network infrastructure performance and security.
Splunk: A powerful data analytics and visualization platform that enables network engineers to analyze network performance data, identify trends, and optimize network infrastructure.
CAPM: A network performance monitoring and analytics platform that provides real-time visibility into network infrastructure performance and enables network engineers to identify and resolve network issues proactively.
Moogsoft: An AIOps platform that uses machine learning and automation to monitor network infrastructure performance, identify anomalies, and resolve network issues proactively.

📝 Enhancement Note: Fiserv's network infrastructure is built on a robust, enterprise-grade technology stack that includes industry-leading network infrastructure technologies, network operating systems, and network monitoring and management tools. Candidates should have experience with these technologies and be prepared to discuss their proficiency in these areas.

👥 Team Culture & Values

Network Engineering Values:

Customer Focus: Prioritize network infrastructure needs and ensure network infrastructure aligns with user needs and business objectives.
Collaboration: Work closely with cross-functional teams, including software development, IT operations, and business stakeholders, to ensure network infrastructure supports business objectives and user needs.
Continuous Improvement: Regularly review and optimize network infrastructure to ensure network performance, security, and reliability.
Technical Expertise: Stay up-to-date with industry trends and best practices, and continuously develop your technical skills and knowledge.

Collaboration Style:

Cross-Functional Integration: Network engineers work closely with various teams, including software development, IT operations, and business stakeholders, to ensure network infrastructure aligns with user needs and business objectives.
Code Review Culture: Network engineers follow best practices for code review, testing, and quality assurance to ensure network configurations and software are secure, reliable, and performant.
Knowledge Sharing: Network engineers share their knowledge and expertise with junior team members, fostering a culture of continuous learning and development.

📝 Enhancement Note: Fiserv's network engineering team values customer focus, collaboration, continuous improvement, and technical expertise. Network engineers work closely with cross-functional teams, follow best practices for code review and quality assurance, and foster a culture of knowledge sharing and continuous learning.

⚡ Challenges & Growth Opportunities

Technical Challenges:

Network Infrastructure Complexity: Fiserv's network infrastructure is complex and global, requiring network engineers to have a deep understanding of network infrastructure, network protocols, and network security.
Network Performance Optimization: Network engineers must continuously monitor network infrastructure performance, identify bottlenecks, and optimize network infrastructure to ensure network performance, security, and reliability.
Network Security: Network engineers must stay up-to-date with the latest network security threats, best practices, and industry standards, and ensure network infrastructure remains secure and compliant.
Emerging Network Technologies: Network engineers must stay current with emerging network technologies, such as software-defined networking (SDN), network functions virtualization (NFV), and intent-based networking (IBN), and evaluate their potential impact on network infrastructure.

Learning & Development Opportunities:

Technical Training: Fiserv offers various technical training opportunities, including online courses, workshops, and certifications, to help network engineers develop their skills and knowledge.
Conference Attendance: Fiserv encourages network engineers to attend industry conferences and events to learn from other network engineering professionals, share best practices, and stay current with industry trends.
Mentorship & Coaching: Fiserv provides mentorship and coaching opportunities to help network engineers advance their careers and develop their leadership skills.

📝 Enhancement Note: Fiserv's network engineering role presents various technical challenges, including network infrastructure complexity, network performance optimization, network security, and emerging network technologies. Network engineers have ample opportunities for learning and development, including technical training, conference attendance, and mentorship and coaching.

💡 Interview Preparation

Technical Questions:

Network Infrastructure Design: Describe your approach to network infrastructure design, including your consideration of network protocols, network security, and network performance optimization techniques.
Network Troubleshooting: Discuss your experience with network troubleshooting, including real-life scenarios you've encountered and the steps you took to diagnose and resolve network issues.
Network Security: Explain your approach to network security, including your understanding of network security best practices, industry standards, and emerging network security threats.

Company & Culture Questions:

Fiserv Culture: Describe what you understand about Fiserv's culture and how you think you would fit into the team dynamics.
Cross-Functional Collaboration: Explain your experience working with cross-functional teams and how you ensure network infrastructure aligns with user needs and business objectives.
Network Infrastructure Evolution: Discuss your approach to network infrastructure evolution, including your ability to adapt to emerging network technologies and industry trends.

Portfolio Presentation Strategy:

Network Infrastructure Projects: Highlight your role in designing, implementing, and maintaining network infrastructure projects, emphasizing your technical expertise and problem-solving skills.
Network Troubleshooting Scenarios: Present real-life network issues you've resolved, explaining the steps you took to diagnose and fix the problems. Include any lessons learned and how you would approach similar issues in the future.
Network Security Measures: Showcase your understanding of network security by presenting examples of security measures you've implemented, such as access control, encryption, and intrusion detection systems. Explain your approach to network security and how you ensure network infrastructure remains secure and compliant with industry standards.
Network Performance Optimization: Demonstrate your ability to monitor and optimize network performance by presenting examples of network performance reports, highlighting the metrics you track, and the techniques you use to ensure network infrastructure remains performant and reliable.

📝 Enhancement Note: Fiserv's interview process focuses on assessing candidates' technical skills, network infrastructure experience, and problem-solving abilities. Candidates should be prepared to discuss their network portfolio, network security approach, and network performance optimization techniques, as well as their understanding of Fiserv's culture and team dynamics.

📌 Application Steps

To apply for this network engineering position at Fiserv:

Submit Your Application: Visit the Fiserv careers website (https://www.fiserv.com/careers) and search for the "Ingeniero de Redes Senior (Sr Network Engineer)" position. Complete the online application form, including your resume and cover letter.
Prepare Your Portfolio: Tailor your portfolio to highlight your network infrastructure projects, network troubleshooting scenarios, network security measures, and network performance optimization techniques. Include any relevant certifications, such as CCNA or CCNP, and any other relevant skills or experiences.
Optimize Your Resume: Use relevant network engineering, network administration, and network infrastructure keywords to optimize your resume for ATS (Applicant Tracking System) screening. Include your technical skills, network infrastructure experience, and any relevant certifications or projects.
Prepare for Technical Interviews: Familiarize yourself with common network infrastructure scenarios, network security best practices, and network performance optimization techniques. Practice explaining your approach to network infrastructure challenges, network security, and network performance optimization.
Research Fiserv: Learn about Fiserv's culture, values, and team dynamics. Understand Fiserv's role in the financial technology and payments industries, and how network infrastructure supports Fiserv's business objectives and user needs.

⚠️ 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.

Ingeniero de Redes Senior (Sr Network Engineer)