MODULE LEAD - Java

Happiest Minds Technologies; Dadri; On-site; INR 1,200,000 - 1,800,000; Full time

Job summary

Happiest Minds Technologies in India is seeking a Developer for Cellular Core network to design, document and implement 3GPP‑compliant 5G SA home network functions, generate accurate schedule estimates, and provide daily stand-up updates with tested software.

You will collaborate with the tech lead and teammates, working with Java, databases and cloud tools to deliver a reliable SaaS product and adopt AI‑powered approaches to development.

Qualifications

• 3–7 years of relevant Dev/Networking experience.
• Strong Java and database skills.
• Experience with AI tools and GenAI for development.

Responsibilities

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

Job 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

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