Blockchain Developer

Airtel; Gurugram District; On-site; INR 1,400,000 - 2,200,000; Full time

Job summary

Airtel is seeking a Blockchain/DLT Engineer to join the Telecom DLT team in Gurugram, delivering enterprise blockchain solutions for cross-operator SMS templates and trusted data sharing. You will build permissioned DLT components, implement smart contracts and ensure smooth integration with microservices and databases.

Ideal candidates have 3-6 years of experience in telecom/CPaaS and a solid grounding in Golang, distributed systems, and blockchain basics.

Qualifications

• Strong programming skills in Golang.
• Basic understanding of Blockchain / DLT concepts.
• Good understanding of REST APIs, microservices and distributed systems fundamentals.
• Knowledge of SQL/NoSQL databases.
• Good problem-solving and debugging skills.
• Willingness to learn enterprise blockchain technologies and telecom use cases.

Responsibilities

• Develop and maintain components of permissioned DLT/blockchain solutions for telecom use cases.
• Work on blockchain transaction flows, ledger operations, smart contracts/chaincode and node-related components.
• Support development of cross-operator SMS template sharing, validation and synchronization solutions.
• Develop integrations between DLT platforms and microservices, APIs, Kafka/Event Streaming and databases.
• Support debugging of blockchain transactions, data synchronization and integration issues.
• Write clean, maintainable and testable code and participate in code reviews.

Skills

Golang

REST APIs

Microservices

Distributed systems

SQL/NoSQL

Problem solving

Learning mindset

Tools

Hyperledger Fabric

Hyperledger Besu

Quorum

Corda

Docker

Kubernetes

Kafka

Solace

OracleDB

MongoDB

CouchDB

Job description

Experience: 3- 6 years | Domain: Telecom / CPaaS / Enterprise-Level Blockchain Technology / DLT (Hyperledger Fabric Preferred)

We are looking for a Blockchain / DLT Engineer to join our Telecom DLT team, working on enterprise blockchain solutions for cross-operator SMS templates and trusted data-sharing use cases.

Key Responsibilities

• Develop and maintain components of permissioned DLT/blockchain solutions for telecom use cases.
• Work on blockchain transaction flows, ledger operations, smart contracts/chaincode and node-related components.
• Support development of cross-operator SMS template sharing, validation and synchronization solutions.
• Develop integrations between DLT platforms and microservices, APIs, Kafka/Event Streaming and databases.
• Support debugging of blockchain transactions, data synchronization and integration issues.
• Write clean, maintainable and testable code and participate in code reviews.
• Support POCs, testing, deployment and production troubleshooting under the guidance of senior engineers.
• Learn and apply concepts around distributed systems, blockchain security, consensus and enterprise DLT architecture.

Must Have

• Strong programming skills in Golang.
• Basic understanding of Blockchain / DLT concepts.
• Good understanding of REST APIs, microservices and distributed systems fundamentals.
• Knowledge of SQL/NoSQL databases.
• Good problem-solving and debugging skills.
• Willingness to learn enterprise blockchain technologies and telecom use cases.

Good to Have

• Hands-on or academic/project experience with Hyperledger Fabric, Hyperledger Besu, Quorum or Corda.
• Basic understanding of smart contracts/chaincode.
• Exposure to Kafka or Solace.
• Telecom / CPaaS / enterprise messaging knowledge.
• Exposure to Docker/Kubernetes and cloud platforms.
• Basic understanding of cryptography, PKI and digital signatures.

Technologies: Golang - 1.14 & 1.26 above (Must), Java - 21 above (Good To Have), Spring Boot - 3.5 above

Database: OracleDB, MongoDB, CouchDB

Event Streaming

Kafka, Solace