Senior Network Engineer (all genders)

Mettler Toledo Llc; Warszawa; Hybrid; PLN 150,000 - 210,000; Full time

Benefits offered by this job

Contract of employment

Annual reward

Flexible working hours

Hybrid work model

Wellbeing activities

Medical care

Life insurance

Sports card

Language courses

Training opportunities

Meal discounts

Job summary

METTLER TOLEDO is seeking a senior Network Engineer to translate business requirements into HLD/LLD for enterprise networks across LAN, WAN, WLAN and security. You will troubleshoot complex network issues and collaborate with Cybersecurity teams to enforce security policies.

You will partner with MSP to maintain global networking, act as SME, and drive continuous improvement while leading automation using Python, Ansible, and Terraform.

Qualifications

• Bachelor's degree in a related field and strong English communication.
• Minimum 5 years in large-scale network and security planning.
• Hands-on Cisco/Nexus experience and enterprise security tooling.

Responsibilities

• Serve as primary business contact for networking requirements across facilities.
• Design, test and develop enterprise networking across LAN, WAN, WLAN and security.
• Enforce security policies, firewall rules, and secure remote access with Cybersecurity teams.
• Collaborate with MSP to maintain global LAN/WAN/WLAN/security across regions.
• Act as SME, drive improvements, manage HLD/LLD, advise MSP and internal teams.
• Define and optimize operational processes with MSP and internal groups; lead IaC automation.

Skills

Network design

Troubleshooting

Automation

Python

Team collaboration

Education

Bachelor's Degree in Computer Information Systems

Tools

Cisco equipment

Fortinet

DNS

IPAM

AAA

ISE

SD-WAN

WAF

Catalyst/Nexus

Job description

Our Opening and Your Responsibilities

The primary focus for this position is to capture business requirements towards enterprise-wide networking infrastructure across LAN, WAN, WLAN and Security and translate it into HLD/LLD. The network engineer is expected to troubleshoot and resolve complex problems related to network/security.

Key Responsibilities

• Serve as the primary point of contact for the business that addresses unique business requirements, including production facilities and R&D environments,
• Design, test and develop enterprise-wide networking infrastructure across LAN, WAN, WLAN, security, and supporting systems such as DNS, IPAM, and AAA,
• Enforce network security policies, firewall rulesets, and secure remote access protocols in collaboration with Cybersecurity teams to safeguard organizational assets,
• Collaborate with the Managed Service Provider (MSP) to maintain LAN, WAN, WLAN, security, and supporting systems such as DNS, IPAM, and AAA across all global regions,
• Act as a Subject Matter Expert (SME) within the designated technical scope, driving continuous improvement initiatives, managing configuration, updating High-Level and Low-Level Designs (HLD/LLD), and providing expert consultancy to MSP and internal teams,
• Define, streamline, and optimize operational processes in partnership with MSP, the ServiceNow team, and other internal IT groups to enhance efficiency and service quality,
• Lead automation efforts using tools such as Python, Ansible, and Terraform to implement Infrastructure-as-Code (IaC) practices and improve operational consistency.

What You Need to Succeed

• Minimum 5 years of experience in large-scale network and security planning, including Cisco routing/switching and enterprise-grade security solutions (preferably Fortinet),
• Excellent knowledge of English (written and spoken),
• Bachelor’s Degree in Computer Information Systems (or a related field),
• Strong knowledge of networking protocols such as TCP/IP, STP, DNS, OSPF, and BGP, along with hands-on experience with Cisco products including Catalyst and Nexus switches, routers, and ISE,
• Demonstrated ability to troubleshoot complex enterprise network problems including SD-WAN/IPSec performance, Certificate management, WIFI quality, etc,
• Solid understanding of HTTP/HTTPS protocols, web application security (OWASP Top 10), and DNS standard,
• Minimum either Cisco CCNP or equivalent knowledge.

Nice to have

• SD-WAN deployment and performance troubleshooting experience,
• WAF implementations experience – proven record track in in tuning WAF policies, creating custom rules, and mitigating false positives with popular products (i.e. Fortinet),
• Experience with hybrid DNS environments (on-premises and cloud integration).

Our Offer to You

• Contract of employment [umowa o pracę], we are looking for a long term cooperation,
• Annual reward,
• Flexible working hours,
• Hybrid work model,
• A diverse and inclusive workplace.
• Festive benefits paid in April and December,
• Medical care with basic dental package (Medicover), with possibility to extend to Damian Medical Center?,
• Possibility to extend medical care to family members,
• Life insurance with possible extended scope,
• Sports card (Medicover),
• Language courses,
• A vast training offer to support your development,
• Wellbeing activities, CSR, with space for your initiatives*,
• Discounts for meals and special offers at Platan Business Park.

Recruitment Process

• CV selection – we contact selected candidates
• Phone screening with a recruiter (approx. 15 min)
• Initial interview with the Manager and Recruiter (video conference, approx. 1 hour)
• F2F meeting at the office.

The information obligation arising from Article 18 [3ca] of the Labor Code is fulfilled before establishing the employment.

About Mettler Toledo

METTLER TOLEDO is a global leader in precision instruments and services. We are renowned for innovation and quality across laboratory, process analytics, industrial, product inspection, and retailing applications. Our sales and service network is one of the most extensive in the industry. Our products are sold in more than 140 countries, and we have a direct presence in approximately 40 countries. For more information, please visit www.mt.com.

Equal Opportunity Employment

We are an equal opportunity employer and value diversity at our company. We give consideration for employment without regard to race, color, religion, sex, age, national origin, disability, sexual orientation, gender identity, genetic information, or any other protected classification. You can find more details in our Equal Employment Opportunity Policy.