Senior Software Engineer- JavaCard

Emnify

Berlin, Germany, Germany Remote (Berlin, Germany) Remote permanent

Posted: January 30, 2026

Job Description

Your Role:

We are looking for an experienced Software Engineer - supporting all of our SIM related initiatives starting with process automation of our SIM lifecycle-management processes for UICC, eUICC and eSIM in the field as well as maintenance of USIM applets.
You will also participate on our future SIM strategy working on new standards and product offerings.

The position can be based remotely or in one of the office locations in Berlin or Würzburg.

Your Impact:

•
Collaborate within a cross-functional team to architect, build, test, deploy and run cloud-based telco applications for global IoT connectivity.

•
Apply your development expertise in Python, Typescript and Java for our SIM lifecycle-management software running on AWS.

•
Utilize your experience in JavaCard applet development to maintain our set of USIM applets

•
Design, implement and test services, enhancing our offerings with value-added features for our customers.

•
Leverage metrics data to prioritize tasks with the highest impact on engineering outcomes.

•
Share your domain and technical knowledge with the team and rely on their existing expertise to grow.

Your Skills:

•
Technical Competency: Proficiency in building distributed network services applications using scripting languages (Python, TypeScript) and OoO languages (Java). Experience in designing cloud-based applications using AWS, Terraform, MySQL/Postgres. Familiar with JavaCard applet development and deployment cycle.

•
Domain Proficiency: Experience with or readiness to enhance your telecommunications knowledge.

•
Problem-solving: Expertise in unit testing of JavaCard applets as well as cloud-based microservices orchestrating their operation in the field.

•
Effective Communication: Ability to clearly share knowledge within and across teams, fostering a collaborative environment. Comfortable working with remote teams.

•
Adaptability: Ability to troubleshoot and resolve issues quickly. Experienced with working in an agile environment.

About emnify

emnify is a global IoT connectivity platform provider, enabling enterprises and OEMs to build, deploy, and operate connected products at scale across 180+ countries. Our cloud-native SuperNetwork powers mission-critical use cases in industries such as mobility, logistics, energy, and industrial IoT.
We are a Series-B scale-up with a strong growth trajectory and a clear focus on upmarket and enterprise customers. emnify’s technology and innovation have been recognized repeatedly by the industry, including:

• eSIM Provider of the Year at the MVNOs World Awards 2025

• Platinum Award for eSIM Management Platform Innovation by Juniper Research (2025)

• IoT Innovator Award by Compass Intelligence for aviation connectivity

• Deloitte Technology Fast 50 Germany, recognizing emnify as one of the country’s fastest-growing tech companies

As we move into the next phase of growth, AI plays a central role in our strategy—both in how we build our platform and in how our customers interact with it.

Why Apply Through MisuJob?

AI-Powered Job Matching: MisuJob uses advanced artificial intelligence to analyze your skills, experience, and career goals. Our matching algorithm compares your profile against thousands of job requirements to find positions where you have the highest chance of success. This saves you hours of manual job searching and ensures you only see relevant opportunities.

One-Click Applications: Once you create your profile, applying to jobs is effortless. Your resume and cover letter are automatically tailored to highlight the most relevant experience for each position. You can apply to multiple jobs in minutes, not hours.

Career Intelligence: Beyond job matching, MisuJob provides valuable career insights. See how your skills compare to market demands, identify skill gaps to address, and understand salary benchmarks for your experience level. Make data-driven decisions about your career path.

Frequently Asked Questions

How do I apply for this position?

Click the "Register to Apply" button above to create a free MisuJob account. Once registered, you can apply with one click and track your application status in your dashboard.

Is MisuJob free for job seekers?

Yes, MisuJob is completely free for job seekers. Create your profile, get matched with jobs, and apply without any cost. We help you find your dream job without any hidden fees.

How does AI matching work?

Our AI analyzes your resume, skills, and experience to understand your professional profile. It then compares this against job requirements using natural language processing to calculate a match percentage. Higher matches mean better fit for the role.

Can I apply to jobs in other countries?

Absolutely. MisuJob features jobs from companies worldwide, including remote positions. Filter by location or look for remote opportunities to find jobs that match your preferences.

Ready to Apply?

Join thousands of job seekers using MisuJob's AI to find and apply to their dream jobs automatically.