Senior Software Engineer (SmartCard Development)

TL;DR

Senior Software Engineer (SmartCard Development): Building and automating SIM lifecycle-management processes for UICC, eUICC, and eSIM with an accent on cloud-based telco applications and JavaCard applet maintenance. Focus on designing distributed network services on AWS and enhancing global IoT connectivity features.

Location: Must be based in Germany or Poland. Remote work is available, or hybrid in Berlin or Würzburg.

Company

hirify.global provides global IoT connectivity solutions specializing in SIM lifecycle management and telco applications.

What you will do

• Architect, build, test, and deploy cloud-based telco applications for global IoT connectivity.
• Automate SIM lifecycle-management processes for UICC, eUICC, and eSIM in the field.
• Maintain a set of USIM applets using JavaCard/SmartCard development expertise.
• Design and implement services using Python and TypeScript running on AWS.
• Participate in the future SIM strategy, working on new standards and product offerings.
• Troubleshoot and resolve network connectivity issues for IoT devices to ensure reliability.

Requirements

• Proficiency in building distributed network services using Python and TypeScript/JavaScript.
• Experience designing cloud-based applications with AWS, Terraform, and MySQL/Postgres.
• Familiarity with JavaCard applet development and the deployment cycle.
• Knowledge of telecommunications, specifically Subscriber Identity Module (SIM) technology.
• Expertise in unit testing and CI/CD practices.
• Must be located in Germany or Poland.

Culture & Benefits

• Remote-friendly environment with flexible office options in Berlin and Würzburg.
• Opportunity to work within a cross-functional team on cutting-edge IoT connectivity.
• Collaborative culture focused on knowledge sharing and professional growth.
• Agile work environment emphasizing impact and engineering outcomes.