Location: New York City, NY
Salary: $120,000.00 USD Annually - $130,000.00 USD Annually
Description:
Must Have Technical/Functional Skills:-
Core Backend Skills:
Strong proficiency in Java (8+), and frameworks such as Spring Boot / Spring Cloud.
Experience building distributed systems and microservices architectures at scale.
Strong knowledge of:
o Concurrency, multithreading, asynchronous programming
o API design (REST/gRPC), security (OAuth2/JWT), and integration patterns
Solid understanding of data stores:
o SQL (PostgreSQL/MySQL) and/or NoSQL (MongoDB/Cassandra)
o Caching (Redis) and search (Elasticsearch) is a plus
Hands-on experience with message streaming/queues:
Blockchain Skills (Must-Have):
Strong understanding of blockchain fundamentals:
o Transactions, blocks, confirmations/finality, consensus, gas/fees, wallets, keys.
Experience integrating backend services with blockchain networks/nodes:
o Ethereum-compatible networks (Ethereum/Polygon/BSC) using Web3j, ethers-style approaches
o and/or permissioned chains (Hyperledger Fabric, Corda, Quorum)
Experience supporting large blockchain deployments:
o Node connectivity, RPC management, event indexing, chain reorg handling, retry strategies.
DevOps / Cloud (Preferred)
Experience with Docker and Kubernetes for containerized microservices deployments.
CI/CD exposure (Jenkins/GitHub Actions/GitLab CI/Azure DevOps).
Cloud experience (Azure/AWS/Google Cloud Platform) is a plus.
Understanding of security practices:
o Secrets management (Vault/KMS), TLS, RBAC, network security.
Roles & Responsibilities
Design and develop Java-based backend services that interact with blockchain networks and nodes (public or permissioned).
Build and scale microservices-based architecture supporting blockchain transaction workflows, event processing, and off-chain components.
Develop reliable services for:
o Transaction orchestration
o Smart contract invocation
o Blockchain event subscription/listening
o On-chain/off-chain data synchronization
Implement scalable APIs (REST/gRPC) for blockchain-enabled products and integrations.
Optimize performance for high throughput and low latency:
o Transaction throughput handling, batching, retries, idempotency, rate limiting.
Ensure secure integration with blockchain:
o Key management best practices, signing transactions, secure secret handling.
Implement observability and reliability standards:
o Logging, monitoring, tracing, alerting, SLOs/SLAs.
Work with DevOps/SRE teams to support production deployments, incident triage, and capacity planning.
Contribute to architecture decisions including:
o Event-driven architecture (Kafka/RabbitMQ), caching strategies, database selection, and deployment topologies.
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Contact:
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Employers have access to artificial intelligence language tools (“AI”) that help generate and enhance job descriptions and AI may have been used to create this description. The position description has been reviewed for accuracy and Dice believes it to correctly reflect the job opportunity.
- Dice Id: cxjudgpa
- Position Id: 1121530
- Posted 3 hours ago
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