Telephony Infrastructure Engineer

Join HCLTech "Certified Global Top Employer 2025"

HCLTech is a global tech company with 224,000+ HCLTechies across 60 countries, offering digital, engineering, and cloud solutions. Serving major industries like Financial Services, Manufacturing, Healthcare, Telecom, and more, its 12-month revenue ending September 2024 was $13 billion.

HCLTech France: +500 HCLTechies. Offices: Paris, Lyon and Toulouse.

HCLTech France: +500 HCLTechies. Offices: Paris, Lyon, Toulouse and Blagnac.

We are seeking an experienced Telephony Infrastructure Engineer - MS Teams to join our HCLTech team at a prestigious client site in the banking sector, based in Paris.

This is a permanent, hybrid role offering the opportunity to work on-site three days per week.

Overview

As a Telephony Infrastructure Engineer, you will join the team responsible for delivering all components of the IT environment. This includes managing workstations, overseeing directory services, handling messaging platforms, and enhancing the security of existing infrastructures.

The team operates in an international context and is currently undergoing significant transformation, requiring an expert with advanced skills in telephony, particularly in software-based telephony solutions using platforms such as Microsoft Teams and other leading providers.

Tasks and Responsibilities:

• Oversee and maintain telephony infrastructure services, ensuring high availability and performance across the IT environment.
• Manage and execute service changes, including conducting impact assessments and planning rollbacks as necessary.
• Provide Level 3 support for telephony-related issues to beneficiaries, troubleshooting and resolving complex incidents.
• Actively contribute to ongoing and new projects related to telephony and IT workplace solutions.
• Participate in meetings with various entities to align telephony strategies and share technical insights.
• Ensure comprehensive documentation, including procedures, Design Acceptance Tests (DATs), and all other relevant materials, is maintained and up to date.

Job Requirements:

Mandatory Skills

• Solid skills in
  MS Teams Telephony
  solutions
• Knowledge of various Softphone solutions (NTT / ODIGO / AWS Connect / Cisco / Genesys / etc.)
• Legacy telephony understanding (Cisco, PABx, etc.)

Appreciated Skills

• Azure (Azure AD \ AD Connect) and its cross-functional links with other MS solutions/products
• Powershell, to be able to maintain, transform and also create scripts
• Windows servers in general (AD \ DNS \ DHCP \ etc.)
• Infrastructure layers (SBC)

Job Requirements

Experience:

• 8+ years in a similar role within complex IT environments, with proven expertise in telephony and collaboration systems.

Mandatory Skills:

• Strong proficiency in
  Microsoft Teams Telephony
  solutions.
• Experience with
  various softphone solutions
  (e.g., NTT, ODIGO, AWS Connect, Cisco, Genesys).
• Solid understanding of
  legacy telephony systems
  (e.g., Cisco, PABx).
• Fluent in French and English
  , both written and spoken, to communicate effectively with colleagues and partners across international teams.

Desirable Skills:

• Familiarity with
  Azure (Azure AD / AD Connect)
  and its integration with other Microsoft solutions/products.
• PowerShell
  scripting skills for automation, maintenance, and transformation of telephony and IT systems.
• Experience with
  Windows Server environments
  (AD, DNS, DHCP, etc.).
• Knowledge of
  telephony infrastructure layers
  (e.g., SBCs).

Ready for a new challenge? Join a friendly, multinational company offering endless opportunities in a dynamic, multicultural environment.

Apply now and submit your CV in English

Why become an HCLTechie?

At HCLTech, we offer diverse opportunities to learn, innovate, and fast-track your career. You'll work with global clients and industry-leading experts, gaining access to mentorship and rewarding growth paths. Our people-friendly work culture fosters flexibility, leadership, and personal and professional growth, giving you the freedom to explore, experiment, and thrive.

We believe in doing things differently, offering hands-on training and coaching, and celebrating the passion and commitment of our teams. Discover the benefits of joining HCLTech:

• Comprehensive benefits package.
• Global career opportunities and mobility.
• Flexible work environment supporting work-life balance.
• Exciting projects and upskilling opportunities to shape your role.
• Total wellbeing focus: Beyond professional growth, you'll be able to collaborate with like-

minded colleagues to drive meaningful impact through initiatives like our CSR Council, Diversity Council, Women Connect, and many more.