Mobile Core Senior Network Engineer

POST Luxembourg
Full_time•Luxembourg

📍 Job Overview

  • Job Title: Mobile Core Senior Network Engineer
  • Company: POST Luxembourg
  • Location: Luxembourg
  • Job Type: On-site
  • Category: Network Engineering
  • Date Posted: June 30, 2025
  • Experience Level: Mid-Senior level (2-5 years)

🚀 Role Summary

  • Key Responsibilities: Build, deploy, maintain, and support mobile connectivity services platforms. Participate in development projects and provide support for sales and product management teams.
  • Key Skills: Mobile Connectivity Services, Network Engineering, Project Management, Sales Support, Product Management, Level 2 Support, Level 3 Support, IPv4, IPv6, Routing, Security, Virtualization, Containerization, Orchestration, Python Scripting, RESTFUL APIs, Git.

💻 Primary Responsibilities

  • Platform Management: Build, deploy, maintain, and support the evolution of mobile connectivity services platforms.
  • Project Participation: Participate and/or manage development and evolution projects of the Mobile platforms.
  • Sales & Product Support: Support sales, pre-sales, and product management teams for products and solutions definition and conception.
  • Product Deployment & Maintenance: Deploy, maintain, and support the evolution of mobile and converged products and solutions.
  • Support Services: Assure Level 2 and 3 supports of mobile connectivity products, services, and solutions and the underlying platforms.
  • On-Call Duties: Participate in on-call duties to ensure 24/7 service support.

🎓 Skills & Qualifications

Education: Master's degree or equivalent experience.

Experience: At least 3 years of experience in network and packet core domains of the mobile services provider delivering 2G/3G/4G/5G services.

Required Skills:

  • Proven knowledge and experience in core and datacenter infrastructures: IPv4/IPv6, Radius, DNS, DHCP, routing, security, virtualization, containerization, orchestration.
  • Scripting experience in Python; ability to learn or existing familiarity with RESTFUL APIs; knowledge of Git.
  • Self-organized and open-minded; able to work either in autonomy or in team.
  • Fluent in English; German, French, or Luxembourgish would be considered an asset.

Preferred Skills:

  • Experience in infrastructure and/or product design.
  • Familiarity with mobile network technologies and services.

📊 Web Portfolio & Project Requirements (N/A for this role)

💵 Compensation & Benefits

Salary Range: €45,000 - €65,000 per year (based on Luxembourg market standards for a Mid-Senior Network Engineer)

Benefits:

  • Competitive benefits package, including health insurance, pension plans, and vacation time.
  • Opportunities for professional development and growth within the organization.
  • A dynamic and multicultural work environment.

Working Hours: Full-time, 40 hours per week, with flexible working hours and on-call duties to ensure 24/7 service support.

🎯 Team & Company Context

Company Culture:

  • POST Luxembourg is a leading national provider of postal and telecommunications services, also offering postal financial services.
  • The company values diversity and is committed to the principles of equal employment opportunity.

Team Structure:

  • The Mobile Core Senior Network Engineer will work within the Telecom Network department.
  • The team consists of network engineers, project managers, and support staff, working collaboratively to deliver mobile connectivity services.

Development Methodology:

  • The team follows Agile methodologies for project management and development.
  • They use collaborative tools and platforms for communication, task management, and code review.

Company Website: POST Luxembourg

📈 Career & Growth Analysis

Role Level: Mid-Senior level Network Engineer, responsible for building, deploying, maintaining, and supporting mobile connectivity services platforms. The role involves participating in development projects and providing support for sales and product management teams.

Reporting Structure: The Mobile Core Senior Network Engineer will report directly to the Head of the Telecom Network department.

Technical Impact: The role has a significant impact on mobile connectivity services, ensuring high availability, performance, and security. The engineer will contribute to the evolution of mobile platforms and the development of new products and solutions.

Growth Opportunities:

  • Opportunities for professional development and growth within the organization, including roles in infrastructure, product design, or technical leadership.
  • The company encourages continuous learning and provides opportunities for training and certification.

🌐 Work Environment

Office Type: On-site, with a modern and collaborative work environment.

Office Location: Luxembourg, with easy access to public transportation and amenities.

Workspace Context:

  • The workspace is equipped with modern tools and technologies to support mobile connectivity services.
  • The team encourages collaboration, knowledge sharing, and continuous learning.
  • The work environment is multicultural, with team members from various backgrounds and expertise.

Work Schedule: Full-time, 40 hours per week, with flexible working hours and on-call duties to ensure 24/7 service support.

📄 Application & Technical Interview Process

Interview Process:

  1. Phone/Video Screen: A brief conversation to assess communication skills, motivation, and initial fit for the role.
  2. Technical Assessment: A hands-on test or case study to evaluate technical skills and problem-solving abilities, focusing on mobile network technologies and services.
  3. Behavioral Interview: A discussion to assess cultural fit, team dynamics, and career aspirations.
  4. Final Interview: A meeting with the hiring manager or a panel to discuss the candidate's fit for the role and the company's needs.

Portfolio Review Tips: (N/A for this role)

Technical Challenge Preparation:

  • Brush up on mobile network technologies and services, including 2G/3G/4G/5G networks, core network elements, and related protocols.
  • Familiarize yourself with relevant tools and platforms, such as virtualization and containerization technologies, and scripting languages like Python.
  • Prepare for behavioral interview questions, focusing on problem-solving, teamwork, and adaptability.

ATS Keywords:

  • Mobile Connectivity Services
  • Network Engineering
  • Project Management
  • Sales Support
  • Product Management
  • Level 2 Support
  • Level 3 Support
  • IPv4
  • IPv6
  • Routing
  • Security
  • Virtualization
  • Containerization
  • Orchestration
  • Python Scripting
  • RESTFUL APIs
  • Git

📌 Application Steps

To apply for this Mobile Core Senior Network Engineer position:

  1. Submit your application through the POST Luxembourg careers portal.
  2. Prepare a cover letter emphasizing your skills, experience, and motivation for the role.
  3. Update your resume, highlighting relevant experience and qualifications.
  4. Research POST Luxembourg and the mobile connectivity services industry to demonstrate your understanding and enthusiasm for the role.
  5. Prepare for the interview process, focusing on technical skills, problem-solving, and cultural fit.

Application Requirements

Candidates should have a Master's degree or equivalent experience and at least 3 years in network and packet core domains. Proven knowledge in core and datacenter infrastructures is required, along with scripting experience in Python and familiarity with RESTFUL APIs.