I
Ingénieur(e) Avant-Vente Infrastructures & Téléphonie IP (H/F)
Contract type
Ongoing
Work mode
Hybrid · 4 days/week in office · Les Ulis, France
Experience
Senior · 5+ years
Job description
Pre-sales engineer who turns retail stores' and regional purchasing centres' IT needs into costed infrastructure solutions covering network, security, IP telephony and hosting.
At a glance
- Employment
- Full-time · Employee (employment agreement)
- Work mode
- Hybrid · 4 days/week in office · Les Ulis, France
- Languages
- French – fluent
What you'll do
- Qualify opportunities with sales colleagues: scope, number of sites, stakes, budget
- Audit the existing network (LAN/WAN, operator links, Wi-Fi, security), telephony, hardware estate and hosting
- Meet store directors, IT managers and regional purchasing centres
- Identify technical risks: cabling, operator links, PSTN end-of-life, hardware compatibility
- Design LAN/WAN architectures for stores and multi-site networks: interconnection, VPN, SD-WAN, link redundancy
- Define segmentation (VLAN) and the addressing plan
- Recommend firewalls (Fortinet or equivalent), filtering rules and secure remote access
- Size switches (PoE) and Wi-Fi coverage
- Build cybersecurity into every proposal
- Design telephony architecture: on-premise or hosted IPBX, SIP trunks, DDIs, number portability, IVR, DECT
- Ensure voice quality of service: QoS, traffic prioritisation
- Support the PSTN-to-IP migration (end of copper network)
- Define hosting of business applications in the datacenter
- Size and cost the solution: hardware, licences, links, services
- Propose alternative scenarios (purchase or managed service, standard or optimised)
- Write technical proposals, architecture dossiers and responses to tenders
- Present and defend solutions in bid defences alongside the salesperson
- Contribute to standardising the offers
- Hand over a complete dossier to project managers and technical teams
- Anticipate the cutover plan to limit impact on store activity
- Keep watch on copper end-of-life, cybersecurity, SD-WAN and cloud
What we're looking for
- Bac+3 to Bac+5 in IT, networks or telecoms, or equivalent experience
- 5 to 10 years of experience in pre-sales, solutions engineering or integration (IT services firm, integrator, telecom operator)
- Network and security: LAN/WAN, VLAN, routing, VPN, QoS, firewalls (Fortinet appreciated), switches, Wi-Fi
- IP telephony: IPBX (Asterisk, 3CX, Alcatel or equivalent), SIP, DDIs, portability, IVR
- Ability to size a solution and produce reliable costing
- Ability to explain simply to both a CIO and a store director
- Driving licence B, national travel
Nice to have
- SD-WAN, virtualisation, SaaS/cloud, vendor certifications
- Experience in large-scale retail or a multi-site network is a real plus
Your team
Avant-vente (pre-sales)
Pre-sales team reporting to the Head of Sales, working between salespeople and technical teams
Benefits
- Permanent contract (CDI), managerial status
- 50–60 K€ package depending on profile
- Smartphone (iPhone or Samsung, your choice) and laptop
- Health insurance covered 100%
- Meal card
- Gratification bonus and profit-sharing bonus
- One day of remote work per week after the probation period
Apply
About Informadis
The IT partner of the E.Leclerc retail network
Provides IP telephony, network and security, datacenter hosting, Space X accounting software, IT hardware, printing and managed services/helpdesk to E.Leclerc stores and regional centres.
Mission
Support member stores and their regional purchasing centres in their IT projects
Key facts
- Les Ulis, France
- IT services
- Projects range from a single store to several sites deployed simultaneously
- The pre-sales team is being strengthened to support growth
Partners & customers
E.Leclerc