IoT Solution Architect – Network Infrastructure
Barcelona
EUR 60.000 - 100.000
About the Role
We are seeking a highly skilled Solution Architect with expertise in IoT network infrastructure to design, implement, and optimize network-level solutions for large-scale IoT deployments. This role focuses on network connectivity, authentication protocols (RADIUS & Diameter), and scalable IoT architectures, rather than device-level operations.
As a Technology Advisor and Implementation Expert, you will collaborate with cross-functional teams to define best practices, enhance security, and improve the efficiency of IoT network solutions. The ideal candidate will have deep expertise in network protocols, authentication mechanisms, OSS/BSS systems, and carrier-grade infrastructure to support enterprise and wholesale IoT solutions.
Key Responsibilities
Architect & Design IoT Network Solutions
* Develop and optimize IoT connectivity architectures, including multi-carrier solutions.
* Define network authentication and security models, leveraging RADIUS and Diameter protocols.
* Ensure high availability, redundancy, and scalability of IoT network infrastructure.
Technology Advisory & Implementation
* Serve as a subject matter expert (SME) on IoT network architectures, advising internal teams and clients.
* Provide technical leadership on integrating IoT devices with cellular and private network infrastructures.
* Assess emerging network technologies and recommend solutions aligned with business objectives.
Authentication & Security Implementation
* Design and implement RADIUS and Diameter-based authentication, authorization, and accounting (AAA) services for IoT connectivity.
* Collaborate with telecom operators to optimize roaming, SIM provisioning, and security models.
* Develop policy-based enforcement strategies for network access control and traffic management.
OSS/BSS System Integration
* Work closely with Operational Support Systems (OSS) and Business Support Systems (BSS) to enable seamless IoT connectivity management.
* Design network orchestration, billing, and service assurance solutions for IoT connectivity services.
* Implement real-time monitoring, automation, and fault management solutions using OSS frameworks.
* Ensure BSS alignment with IoT billing, policy enforcement, and service lifecycle management.
* Work closely with engineering, operations, and product teams to deploy and scale IoT network solutions.
* Interface with carriers, MVNOs, and cloud providers to integrate connectivity solutions seamlessly.
* Provide technical documentation, best practices, and training for internal teams and external stakeholders.
Required Qualifications & Skills
Experience:
* 8+ years in network architecture, telecom, or IoT networking roles.
* Proven experience working with RADIUS and Diameter protocols for authentication & authorization.
* Hands-on experience with OSS/BSS integration for network operations and IoT service management.
* Strong background in IP networking, LTE, 5G, and private networking solutions.
* Hands-on experience with cloud-based and hybrid IoT network solutions (e.g., AWS, Azure, on-prem deployments).
* Familiarity with VPNs, SD-WAN, APNs, firewalls, and edge networking in an IoT context.
Technical Skills:
* Deep knowledge of RADIUS, Diameter, AAA frameworks.
* Strong understanding of network security protocols (TLS, IPsec, PKI, SIM-based security).
* Experience with carrier integrations, APN configurations, and SIM management.
* Working knowledge of network monitoring tools and automation frameworks.
* Hands-on experience with protocols like MQTT, CoAP, or LwM2M is a plus.
Soft Skills:
* Strong problem-solving and analytical skills.
* Ability to translate technical solutions into business value.
* Excellent communication and stakeholder management skills.
* Self-starter with a consultative mindset and ability to lead technical discussions.
Preferred Certifications (Bonus)
* Cisco CCNP or CCIE (Enterprise or Security)
* AWS/Azure Cloud Networking Certifications
* IoT-Specific Certifications (GSMA IoT Security, LPWAN, 5G Core Networking)
Why Join Us?
* Work on cutting-edge IoT networking solutions.
* Impact global IoT connectivity at scale.
* Collaborate with leading telecom providers & enterprises.
* Opportunities for career growth in a fast-evolving industry.
If you are a network-focused IoT Solution Architect with a passion for designing high-performance, secure, and scalable IoT networks, we’d love to hear from you!
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