Senior Lead Software Engineer - Blockchain, Java, Micro Services

JPMorgan Chase & Co.; Jersey City (NJ); On-site; USD 180,000 - 240,000; Full time

Job summary

JPMorgan Chase & Co. in Jersey City is seeking a Sr. Lead Software Engineer to advance the Core Blockchain Team within Commercial & Investment Bank’s Payments Technology. You will drive design, development, and secure, scalable blockchain-based solutions.

The role emphasizes microservices, cryptography, and enterprise AI-assisted tooling to improve code quality, delivery speed, and reliability across multiple technologies.

Qualifications

• 5+ years of software engineering experience in distributed systems.
• Degree in Computer Science or Mathematics or equivalent.
• Experience delivering system design and operations for distributed systems.
• Experience with Ethereum/Hyperledger or similar blockchain platforms.
• Proficiency in Solidity, Java, JavaScript, or Python.
• Experience with cryptographic principles and cloud services.
• Ability to work independently with minimal oversight.
• Experience using AI-assisted development tools.

Responsibilities

• Design and implement microservices architectures.
• Develop blockchain solutions on private/public networks.
• Monitor and optimize microservice performance.
• Conduct code reviews and provide feedback.
• Lead enterprise AI-assisted development adoption.
• Ensure security and reliability of blockchain infrastructure.
• Drive architecture decisions and operation processes.

Skills

Blockchain expertise

API development

Distributed microservices

Secure coding

AI-assisted development tools

Team leadership

Education

Bachelors in CS/Math

Equivalent experience

Tools

AWS

EKS

Docker

Hardhat

Truffle

Slither

CI/CD tooling

Job description

Be an integral part of an agile team that's constantly pushing the envelope to enhance, build, and deliver top-notch technology products.

As a Sr. Lead Software Engineer at JPMorgan Chase within the Commercial & Investment Bank - Payments Technology, Core Blockchain Team, you are an integral part of an agile team that works to enhance, build, and deliver trusted market-leading technology products in a secure, stable, and scalable way. Drive significant business impact through your capabilities and contributions, and apply deep technical expertise and problem-solving methodologies to tackle a diverse array of challenges that span multiple technologies and applications.

Job responsibilities

• Designs and implements microservices architectures using industry-standard technologies and frameworks.
• Designs blockchain solutions and decentralized applications on private and public blockchain networks, with proven and verified cryptographic protocols
• Drives decisions that influence the product design, application functionality, and technical operations and processes
• Monitors and optimize the performance of microservices, ensuring high availability and responsiveness.
• Troubleshoots and resolves technical issues, providing timely solutions to maintain application stability.
• Conducts code reviews and provide constructive feedback to peers, fostering a culture of continuous improvement.
• Contributes to the engineering community as an advocate of firmwide frameworks, tools, and practices of the Software Development Life Cycle
• Implements rigorous and thorough monitoring and testing practices to ensure the security and performance goals of blockchain infrastructure
• Designs and verifies cryptographic protocols deployed on the blockchain. Design blockchain solutions, such that it can support benchmark use-cases of decentralized applications, with proven and verified cryptographic protocols
• Drives team adoption of enterprise-authorized AI-assisted engineering practices within the work environment to improve code quality, delivery speed, and operational outcomes (e.g., AI-assisted code review/refactoring, test strategy acceleration, incident/root-cause analysis support), while establishing consistent validation standards (secure coding, peer review, automated testing) and promoting reuse of effective patterns across the team.

• Applies knowledge of tools within the Software Development Life Cycle toolchain, including enterprise-authorized AI-assisted development and automation capabilities, to improve the value realized by automation.

Required qualifications, capabilities, and skills

• Formal training or certification on software engineering concepts and 5+ years applied experience
• A degree in Computer Science / Mathematics or equivalent work experience in a field utilizing the same subject matter
• Hands-on practical experience delivering system design, application development, testing, and operational stability for traditional distributed systems
• Have practical experience developing on blockchain platforms, such as, Ethereum, Hyperledger, or similar
• Strong object oriented programming language background.Hands-on experience with application programming, backend API development and distributed microservices infrastructure inone or more programming language(s): Solidity, Java, JavaScript, Python.
• Experience and understanding of the cryptographic principles underpinning blockchain technologies such as encryption algorithms, key management, key wallets
• Experience with cloud infrastructure services such as Amazon, Google, or Microsoft (AWS, Google Cloud, Azure)
• Ability to tackle design and functionality problems independently with little to no oversight
• Demonstrated experience leading effective use of enterprise-authorized AI-assisted software development tools within the work environment (e.g., for coding, code review, test acceleration, troubleshooting) with the ability to set team expectations for validating AI outputs for correctness, performance, and security

• Strong understanding of responsible AI use in engineering workflows, including data sensitivity considerations, secure handling of inputs/outputs, and adherence to resiliency and security expectations; experience coaching senior engineers/leads on compliant usage patterns and controls.

Preferred qualifications, capabilities, and skills

• Experience in Financial Markets
• Experience designing and writing smart contracts with Solidity using Hardhat, Truffle, Slither scanning etc
• Hands-on experience with AWS, EKS, Docker
• Knowledge of DevOps practices and tools for continuous integration and deployment.
• Familiarity with blockchain interoperability solutions
• Experience with RDBMS