Software Developer

Xcaliber Infotech

3 - 6 years

5 - 11 Lacs

pune

Posted:13 hours ago| Platform:

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Skills Required

java smart card applets javacard esim

Work Mode

Work from Office

Job Type

Full Time

Job Description

Job Summary

Software Developer

Key Responsibilities

Design, develop, and maintain
Java Card applets
for eUICC (eSIM) platforms
Manage
eSIM profile lifecycle
including provisioning, download, installation, and OTA updates
Work on
SM-DP+ integrations
and troubleshoot eSIM provisioning issues
Develop applets for
network authentication, SIM Toolkit (STK), and value-added services
Ensure compliance with
GSMA RSP specifications (SGP.21, SGP.22)
Collaborate with MNO/MVNO partners for secure eSIM operations
Handle
APDU communication
, secure element cryptography, and key management (KID/KIC)
Create technical documentation, specifications, and test plans

Required Skills

Java Card, Java, Applet Development, SIM, eSIM Programming, SIM Toolkit (STK)
Hands-on experience with
eSIM / eUICC and Remote SIM Provisioning (RSP)
Experience working with
SM-DP+ platforms
Strong understanding of
SIM file systems (MF, DF, EF)
and
APDU commands
Knowledge of
PKI, cryptography, and telecom security concepts
Familiarity with telecom core concepts (HSS, MME, SMSC, PGW)

Qualifications

Bachelors degree in
Computer Science / Electronics / Telecommunications
or equivalent experience
3–6 years of relevant experience in
telecom, MVNO, MVNE, or SIM/eSIM domain

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