Java Developer

Key Skills & Knowledge Areas:
Bachelor's degree in IT/Computer Science/Computer Engineering or related discipline.
At least 1 year of experience as a Java Developer.
Strong experience in GSMA SGP.32 and related specifications:
Deep knowledge of SGP.31 (eSIM IoT Architecture & Requirements).
Familiarity with SGP.32 (IoT Profile Manager specifications).
Understanding of SGP.22 (Consumer eSIM) and SGP.21 (M2M eSIM) if needed.
Good experience in Security & Cryptography:
Secure Channel Protocol (SCP03, SCP11).
PKI (Public Key Infrastructure) and secure provisioning.
Authentication, certificate management.
Have knowledge about eSIM & iSIM Ecosystem:
eUICC, iSIM provisioning, and Remote SIM Provisioning (RSP).
Lifecycle management of eSIM profiles.
Subscription management and interoperability.
Have knowledge about System Architecture & Cloud Technologies:
Experience with Microservices, API-driven architectures.
Cloud-native solutions (AWS, Azure, GCP) for iSIM provisioning.
Scalability and high-availability design patterns.
Understand the Communication Protocols & Connectivity:
ES Interfaces (ES2+, ES9+, ES10b, ESipa) in GSMA architecture.
Networking protocols: CoAP, MQTT, LwM2M, HTTPS, REST APIs.
IoT Protocols & Devices: Cellular IoT (NB-IoT, LTE-M), LPWAN.
Good programming in Java so that can involve the development in SM-DP+, SM-API integration as well as eIM servers.
Good troubleshooting, problem solving, and analytical skills
Strong interpersonal and communications skills, both oral and written, especially in English. Able to express ideas clearly and concisely.