Engineer
Jersey City, NJ · On-site
$90K - $100K/yr
Blockchain Java Backend Developer Must Have Technical/Functional Skills Core Backend Skills • ... Corda, Quorum) • Experience supporting large blockchain deployments: o Node connectivity, RPC ...
10 Quorum Back-End Developer Jobs Hiring Near You
Engineer
Jersey City, NJ · On-site
$90K - $100K/yr
Blockchain Java Backend Developer Must Have Technical/Functional Skills Core Backend Skills • ... Corda, Quorum) • Experience supporting large blockchain deployments: o Node connectivity, RPC ...
Senior Integration Engineer - REMOTE
Dobbs Ferry, NY · Remote
$110K - $135K/yr
Why You'll Love Working at Quorum At Quorum Federal Credit Union, we are a cutting-edge credit ... Build and maintain backend services and integration workflows using .NET/C# and Microsoft ...
Senior Integration Engineer - REMOTE
Dobbs Ferry, NY · Remote
$110K - $135K/yr
Why You'll Love Working at Quorum At Quorum Federal Credit Union, we are a cutting-edge credit ... Build and maintain backend services and integration workflows using .NET/C# and Microsoft ...
DLT Engineer Location: Charlotte Job Title DLT Engineer Tokenized Deposits Overview We are seeking ... Corda Quorum Besu or private Ethereum Strong backend skills in Java Go Kotlin or Nodejs ...
DLT Engineer Location: Charlotte Job Title DLT Engineer Tokenized Deposits Overview We are seeking ... Corda Quorum Besu or private Ethereum Strong backend skills in Java Go Kotlin or Nodejs ...
DLT Engineer Location: Charlotte Job Title DLT Engineer Tokenized Deposits Overview We are seeking ... Corda Quorum Besu or private Ethereum Strong backend skills in Java Go Kotlin or Nodejs ...
DLT Engineer Location: Charlotte Job Title DLT Engineer Tokenized Deposits Overview We are seeking ... Corda Quorum Besu or private Ethereum Strong backend skills in Java Go Kotlin or Nodejs ...
Required : • 4 to 8 years in software engineering with 2 years in blockchainDLT • Experience with Hyperledger Fabric R3 Corda Quorum Besu or private Ethereum • Strong backend skills in Java Go ...
Required : • 4 to 8 years in software engineering with 2 years in blockchainDLT • Experience with Hyperledger Fabric R3 Corda Quorum Besu or private Ethereum • Strong backend skills in Java Go ...
Lead Software Engineer (Backend)
Seattle, WA · On-site
$180K - $250K/yr
Backed by M25, Mudita, Flywheel Fund, Purdue Ventures, Quorum Venture Partners, Plug and Play ... Job Summary As a lead software engineer at Aerovy, you'll lead architect and deliver core ...
Lead Software Engineer (Backend)
Seattle, WA · On-site
$180K - $250K/yr
Backed by M25, Mudita, Flywheel Fund, Purdue Ventures, Quorum Venture Partners, Plug and Play ... Job Summary As a lead software engineer at Aerovy, you'll lead architect and deliver core ...
Full Stack Architect, Digital Assets & Tokenization
$160K - $300K/yr
You will provide architectural direction across backend services, decentralized application ... Partner with engineering leaders throughout the delivery lifecycle to ensure implementations remain ...
Full Stack Architect, Digital Assets & Tokenization
$160K - $300K/yr
You will provide architectural direction across backend services, decentralized application ... Partner with engineering leaders throughout the delivery lifecycle to ensure implementations remain ...
Principal Architect - Digital Assets & Tokenization
Toronto, ON · On-site
CA$150K - CA$200K/yr
You will provide architectural direction across backend services, decentralized application ... Partner with engineering leaders throughout the delivery lifecycle to ensure implementations remain ...
Principal Architect - Digital Assets & Tokenization
Toronto, ON · On-site
CA$150K - CA$200K/yr
You will provide architectural direction across backend services, decentralized application ... Partner with engineering leaders throughout the delivery lifecycle to ensure implementations remain ...
Full Stack Architect, Digital Assets & Tokenization
New York, NY · On-site
$160K - $300K/yr
You will provide architectural direction across backend services, decentralized application ... Partner with engineering leaders throughout the delivery lifecycle to ensure implementations remain ...
Full Stack Architect, Digital Assets & Tokenization
New York, NY · On-site
$160K - $300K/yr
You will provide architectural direction across backend services, decentralized application ... Partner with engineering leaders throughout the delivery lifecycle to ensure implementations remain ...
This role is focused on backend application support, system optimization, infrastructure ... Quorum upgrades, and EMK3 modernization efforts. The position requires strong SQL scripting and ...
This role is focused on backend application support, system optimization, infrastructure ... Quorum upgrades, and EMK3 modernization efforts. The position requires strong SQL scripting and ...
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$90K - $100K/yr
Full-time
This job post has expired today. Applications are no longer accepted.
Job description
Blockchain Java Backend Developer
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/GCP) 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.
Salary Range- $90,000-$100,000 a year
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/GCP) 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.
Salary Range- $90,000-$100,000 a year