Mobile App Senior Developer (f/m/d)
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Summary
Senior Android developer at Kontron Transportation building native Kotlin/Jetpack Compose apps for ruggedized handheld devices used in mission-critical communications, including low-latency audio/video streaming over SIP, RTP, WebRTC and 3GPP MCX standards for public safety and rail networks.
Kontron Transportation is a leading international provider of end-to-end communication solutio... 1 Mobile App Senior Developer (f/m/d)
Your tasks
* Degree in Telecommunications, Computer Science, Electrical Engineering or a related technical discipline.
* Design, build, and maintain high-performance native Android applications using Kotlin and Jetpack Compose, tailored for ruggedized mobile hardware and specialized handheld devices.
* Architect and implement low-latency real-time audio/video streaming and communication protocols, including SIP, RTP, WebRTC, and 3GPP MCX standards (MCPTT, MCVideo, MCData).
* Optimize background and foreground services to guarantee continuous connectivity, instant call setup times.
* Implement rigorous data security practices, including end-to-end encryption (E2EE), and compliance hardening for public safety standards.
* Establish rigorous testing standards, including automated unit, integration, and stress tests tailored for network jitter, packet loss, and low-battery scenarios.
* Partner closely with our cross-functional engineering squads, seamlessly following our established development processes and agile workflows to keep our release cycles predictable and code quality high.
Your qualification
* Bachelor's or Master's degree in Computer Science, Computer Engineering, or a related technical discipline.
* 5+ years of professional Android development experience with a track record of deploying complex, high-reliability applications to production.
* Deep understanding of networking protocols (TCP/UDP, WebSockets, IP networking, QoS) and real-time media streaming.
* Proven experience managing device power consumption, memory management, and performance profiling under constrained hardware limits.
* Strong background in writing robust, testable code backed by comprehensive unit and UI testing frameworks with a sense of quality for clean code, testing, and code Reviews.
* Passion for collaborating in an agile, interdisciplinary team while using our standard collaboration tools like Jira and Confluence.
* Hands-on experience with 3GPP Mission Critical Services (MCX) or Land Mobile Radio (LMR) is nice to have
* Familiarity with enterprise Mobile Device Management (MDM) rollouts is a plus
* Prior experience in public safety, defense, aerospace, or industrial IoT software development is an advantage
Our offer
As a leading international company in the mission-critical networks industry, we offer exciting and varied roles in various fields of expertise. Working with the latest technologies, implementing innovative projects, and collaborating with a wide variety of customers are just a few of the factors that drive the Kontron team.
* Community and Success-these are the values that define how we work together. Join our motivated, international team:
* Open communication with a casual, first-name-only culture across all international locations
* Flexible work hours and the option to work from home
* An environment that welcomes new ideas and encourages initiative
* Personalized training and professional development opportunities based on performance reviews
* A modern office in the Vienna Technology Hub, surrounded by numerous restaurants and excellent infrastructure
* Regular company events and team-building activities
* Many attractive employee benefits (e.g., meal vouchers, workplace health promotion, company bike, additional vacation days for volunteer work and birthdays, transportation allowance)
We offer a competitive gross annual salary starting at EUR 55,000 per year. A higher salary commensurate with your actual qualifications and experience is possible.
Interested?
https://kontron-transportation.softgarden.io/job/67364910/Mobile-App-Senior-Developer-f-m-d-?jobDbPVId=284523395&l=de Das Mindestentgelt für die Stelle als Mobile App Senior Developer (f/m/d) beträgt 55.000,00 EUR brutto pro Jahr auf Basis Vollzeitbeschäftigung. Bereitschaft zur Überzahlung.
Your tasks
* Degree in Telecommunications, Computer Science, Electrical Engineering or a related technical discipline.
* Design, build, and maintain high-performance native Android applications using Kotlin and Jetpack Compose, tailored for ruggedized mobile hardware and specialized handheld devices.
* Architect and implement low-latency real-time audio/video streaming and communication protocols, including SIP, RTP, WebRTC, and 3GPP MCX standards (MCPTT, MCVideo, MCData).
* Optimize background and foreground services to guarantee continuous connectivity, instant call setup times.
* Implement rigorous data security practices, including end-to-end encryption (E2EE), and compliance hardening for public safety standards.
* Establish rigorous testing standards, including automated unit, integration, and stress tests tailored for network jitter, packet loss, and low-battery scenarios.
* Partner closely with our cross-functional engineering squads, seamlessly following our established development processes and agile workflows to keep our release cycles predictable and code quality high.
Your qualification
* Bachelor's or Master's degree in Computer Science, Computer Engineering, or a related technical discipline.
* 5+ years of professional Android development experience with a track record of deploying complex, high-reliability applications to production.
* Deep understanding of networking protocols (TCP/UDP, WebSockets, IP networking, QoS) and real-time media streaming.
* Proven experience managing device power consumption, memory management, and performance profiling under constrained hardware limits.
* Strong background in writing robust, testable code backed by comprehensive unit and UI testing frameworks with a sense of quality for clean code, testing, and code Reviews.
* Passion for collaborating in an agile, interdisciplinary team while using our standard collaboration tools like Jira and Confluence.
* Hands-on experience with 3GPP Mission Critical Services (MCX) or Land Mobile Radio (LMR) is nice to have
* Familiarity with enterprise Mobile Device Management (MDM) rollouts is a plus
* Prior experience in public safety, defense, aerospace, or industrial IoT software development is an advantage
Our offer
As a leading international company in the mission-critical networks industry, we offer exciting and varied roles in various fields of expertise. Working with the latest technologies, implementing innovative projects, and collaborating with a wide variety of customers are just a few of the factors that drive the Kontron team.
* Community and Success-these are the values that define how we work together. Join our motivated, international team:
* Open communication with a casual, first-name-only culture across all international locations
* Flexible work hours and the option to work from home
* An environment that welcomes new ideas and encourages initiative
* Personalized training and professional development opportunities based on performance reviews
* A modern office in the Vienna Technology Hub, surrounded by numerous restaurants and excellent infrastructure
* Regular company events and team-building activities
* Many attractive employee benefits (e.g., meal vouchers, workplace health promotion, company bike, additional vacation days for volunteer work and birthdays, transportation allowance)
We offer a competitive gross annual salary starting at EUR 55,000 per year. A higher salary commensurate with your actual qualifications and experience is possible.
Interested?
https://kontron-transportation.softgarden.io/job/67364910/Mobile-App-Senior-Developer-f-m-d-?jobDbPVId=284523395&l=de Das Mindestentgelt für die Stelle als Mobile App Senior Developer (f/m/d) beträgt 55.000,00 EUR brutto pro Jahr auf Basis Vollzeitbeschäftigung. Bereitschaft zur Überzahlung.