ANDROID TELEPHONY FRAMEWORK ENGINEER

Job description

We are seeking an Android Telephony Framework Engineer to our headquarter in Lund, Sweden! The role requires deep understanding of mobile SoC or embedded Android. The successful candidate will have a proven experience commercializing cellular modem products in the North American market. You will participate in new feature development and debugging for carrier requirements in 5G/4G/3G/2G/CDMA technologies. Utilize your experience in Android Telephony Layer and Radio Interface Layer (RIL) to design cutting edge wireless modem or smartphone devices.



Basic qualifications


Minimum Bachelor’s in computer science or equal.

Strong, demonstrable coding skills in C and C++ and Java.

3+ years of experience development experience in Android and Linux OS environments.

Multiple years’ experience in cellular software development, debugging, and optimization.

Understanding of North American Cellular carrier requirements.

Familiarity with LTE call flow and performance analysis, characterization and optimization

Software design and coding experience in Android Telephony Framework and Radio Interface Layer (RIL) SW.

Experience in wireless modem or smartphone devices certification in association with 3G/4G/5G

Experience with Volte/VoWifi, IMS, voice calls and supplementary service, data connection, SMS/MMS, UICC.

Good understanding of 3GPP 5G/4G/3G/2G and 3GPP2 CDMA systems.

Experience with cellphone products development based on Qualcomm Snapdragon 4G/5G modem implementation is preferred.

Strong documentation and writing skills.





Preferred additional skills, personal traits, experience


Team player

Proactiveness in collaborating and execution.

illingness to learn new methods / tools / processes

trong problem solving and critical thinking skills

Strong passion for creativity and solving cutting edge industry problems





We offer

We help our customer realizing their ideas into products. We turn ideas into technical solutions and develop them. We design the system with choosing existing components and designing new ones depending on needs and cost efficiency. Android based platforms have grown as choice to base products on, due to time efficiency in development.

The developers work in all project phases and with all kinds of products.


An international working environment

Opportunity to develop cutting edge technology for market leaders and some of the most demanding customers

Extensive hardware and software knowledge and all the equipment to build and test complete products and solutions

Working on a project basis, promoting competence development

Being part of a wonderful and experienced team where you will never work alone.

The Sigma Connectivity company culture.