End-to-End Test and Integration Engineer for IoT Mobile Core 4G/5G Data IMS SMS

🔒 Confidential Employer

Posted 7 May 2026

LOCATION

Not specified

TYPE

Full-time

LEVEL

Mid-Senior level

SKILLS

4G/5G mobile networks IMS (IP Multimedia Subsystem) Kubernetes DevOps CI/CD Observability tools (Prometheus, Grafana, ELK) Scripting and automation E2E integration testing

FULL DESCRIPTION

End-to-End Test and Integration Engineer for IoT Mobile Core 4G/5G Data IMS SMS

This role involves ensuring end-to-end integration and service validation of an IoT platform built on a dedicated mobile core (4G/5G, IMS, SMS) within a Kubernetes environment. Responsibilities include setting up test environments, performing E2E tests, investigating complex issues, automating tests with DevOps tools, configuring observability tools, and monitoring platform performance.

Company: [Employer hidden — sign up to reveal] ([Employer hidden — sign up to reveal])

Main Responsibilities

Set-up the required testing environment to be capable to test remotely an IoT platform located in French labs
Testing and validation of IoT services expected by marketing from an end-to-end perspective
Define and perform E2E integration tests and service validation tests, after upgrade of platform components (4G/5G mobile core, IMS voice core, SMSC) in coordination with relevant TMC teams
Investigation of complex issues related to mobile data/voice cores and SMS, through functional and protocol testing, analyzing of traces and performance indicators, and proposing solutions in collaboration with expert teams
Support for automating recurring tests using DevOps tools
Configuration, and optimization of observability tools (monitoring, logging, alerting) and participation in their integration with operational/supervision tooling
Monitoring the performance and stability of various IoT platform instances (qualification/pre-production/production)

Required Skills

In-depth knowledge of 4G/5G mobile networks and IMS
Experience in integrating telco mobile solutions (voice/data/SMS) component by component (horizontal integration)
Knowledge of Kubernetes and native cloud environments
Experience in integrating mobile telco solutions in virtualized or containerized environments (vertical integration)
Strong analytical and problem-solving skills for complex issues
Experience with observability tools (Prometheus, Grafana, ELK, etc.)
DevOps skills: CI/CD, deployment automation, configuration management
Scripting and development skills for automating tests
Knowledge of security and incident management

Profile

Engineering degree or equivalent in telecommunications, computer science, or related fields
Significant experience in integrating and testing mobile data and voice solutions for 4G/5G
Knowledge of Kubernetes, Docker, and DevOps practices
Ability to work in a team, communicate effectively, and document processes

What We Offer

Global Opportunities: Work in multi-national teams with opportunity to collaborate with colleagues and customers from all over the world
Flexible Work Environment: Flexible working hours and possibility to combine work from office and home (hybrid ways of working)
Professional Development: training programs and upskilling/re-skilling opportunities
Career Growth: Internal growth and mobility opportunities within [Employer hidden — sign up to reveal]
Caring and Daring Culture: Health and well-being programs and benefits, diversity & inclusion initiatives, CSR and employee connect events
Reward Programs: Employee Referral Program, Change Maker Awards

At [Employer hidden — sign up to reveal], only your skills matter. Regardless of your age, gender, background, origin, religion, sexual orientation, disability, neurodiversity, or appearance, we actively encourage diversity within our teams. [Employer hidden — sign up to reveal] is a disability-inclusive employer.