R&D - Lead Software Developer (Location Algorithm)

The Team you will be part of

In CNS, you will be part of Services & Care (S&C)Custom Applications & Solutions team (CA&S). This group is at the heart of a revolution to bring faster and reliable networks to people worldwide through our ambition, innovation, and technical expertise.

Mandatory Skillset

• Telecom Domain expertise is MUST, including in-depth understanding of 2G/3G/4G/5G/VoIP/VoWi-fi core network Architecture, related call flows and protocols. Location services (LCS) and related call flows knowledge is a plus.
• Sound knowledge in GPS navigation messages data structure and assistance data.
• Familiar with different coordination systems and translations
• Familiar with the algorithmrequired to determine the SV position and user positionwith the measurement data collected.
• Familiar with statistics and numerical integration methods.
• Solid direct hands-on experience in C/C++, Java application development (any one is mandatory) with focus onMultithreading, Inter Process Communication (IPC), Client-server based communication model.
• Good understanding of 3GPP (E-UTRAN, NG-RAN, IMS etc.), OMA, ATIS, NENA, and related standards for LCS.
• Familiar with the positioning methods ex: CID/ECID, TDOA, AGNSS etc.
• Good in-depth Knowledge of Linux particularly RHEL/Rocky Linux concepts including understanding and fine tuning of kernel parameters.
• Good understanding of Cloud-native and traditional BareMetal and Virtualized solutions. Understanding of OpenStack, Red hat OpenShift is a plus.
• Good working experience with container runtime like Docker/Podman and helm for k8s package management.
• Solid system level troubleshooting and critical thinking skills.
• Working knowledge of GitHub/Gerrit (GIT), JIRA.
• Good Soft skills Interaction with Customer/market teams for Requirement Gathering and design discussions.

Good to have.

• Solid experience in SS7, Diameter, SIP, HTTP2 protocols including positioning protocols & procedures such as LPP, LPPa, NRPPa,RRLP, PCAP with message level understanding.
• Working knowledge with TCP/IP, TLS (preferably v1.2 and above).
• In-depth understanding of atleast one SQL (e.g., MySQL, PostgreSQL) and one NoSQL DBMS (e.g., Cassandra, Redis etc.,)
• Experience in LDAP, SOAP, XML, JSON.
• RestFul API design (using HTTP and/or HTTP2).
• Golang/Lua/JavaScript/Python/Shelldevelopment knowledge good to have.
• Experience in DevOps Writing CI/CD Pipelines and use of tools like Jenkins and Ansible for Build Automation & Deployment/Configuration.
• Agile and Iterative S/W Architecture/development experience is a plus.

As a Developer, you will be designing and implementing complex telco-grade software applications.

Key Roles & Responsibilities

• Design and implement positioning algorithm, including GPS, GLONASS, O-TDOA, UL-TDOA, UL-AOA, TA, Rx, RTT and fingerprint.
• Support drive tests with mobiles with GPS receiver and SUPL location server
• Gather the drive test data, analyze and visualize the performance of the algorithm and tune the algorithm for best accuracy & fix time
• Application Development Designing, coding, and implementing software applications.
• Ensuring scalability, security, and performance of applications.
• Working with cross-functional teams, including Architects, product managers, and QA Testers.
• Participating in software architectureand design discussions, contributing ideas and solutions
• Creating technical documentation for code, processes, and applications
• Troubleshooting and resolving performance bottlenecks in applications.
• Mentoring and supporting developers to foster a culture of continuous improvement.
• Reviewing & Optimizing applications code quality and performance
• Keeping up to date with emerging technologies, programming languages, and industry trends.