SENIOR SOFTWARE ENGINEER - Java

Developer - Cellular Core network

Description

Design, document and implement Network Functions of a cloud-based 3GPP compliant 5G SA home network. Generate accurate schedule estimates. Provide progress updates in a daily stand up meeting, and deliver tested software in a predictable manner. Collaborate actively with the tech lead and other team members.

Key Responsibilities

Solve Business Problems: Research solutions to solve problems and develop product

Leverage Cellular Expertise: Leverage domain expertise in Cellular networks (3GPP standards, deployment, operations) to build a cutting-edge Celluar Core SaaS product.

Create Design & Documentation Artifacts: Produce and maintain detailed technical designs, specifications, and documentation to guide both current development and future enhancements.

Implementation: Directly develop and implement network components using technologies like Java, various databases, and network analysis tools (e.g., pcap, Wireshark, tcpdump). Fulfill feature acceptance criteria.

Technical Troubleshooting: Address complex technical challenges and optimize network performance.

Adoption of New Technologies: Integrate emerging AI-powered tools and methodologies to enhance development processes.

Must have skills

Required (3-7 years)

AI-powered coding assistants and effective prompt engineering, and use GenAI for technical research and documentation.

Java

Database (MySQL, Oracle, Cassandra, Redis (at least one) Git source control

Critical thinking

Excellent communicator: able to effectively express ideas and concepts, in both written and spoken forms.

Self-Motivated: Actively participate in internal discussions and demo to customers and in public events. Desirable

Public cloud services: GCP, AWS or Azure Spring Boot

Docker/Containers/Kubernetes C/C++

Message broker: RabbitMQ, Kafka, etc

Nice to have domain experience

Experience in some of the 3GPP Cellular Network Standards like below:

Familiarity with 3GPP Rel 15 and later

Cellular identifiers (ICCID, IMSI, MSISDN, IMEI) 2G/3G (SS7), 4G (Diameter), 5G SA (HTTP/2)

AAA/RADIUS, SMS, SMPP VoLTE

API Development & Security

Oath2 PKI

mTLS, SSL

Education

BS or higher degree in Computer Science or equivalent