Senior Lead Blockchain Security Engineer – Custody & Wallet

Crypto Pro Network; Plano (TX); On-site; USD 180,000 - 240,000; Full time

Job summary

JPMorgan Chase in Plano, Texas, seeks a Lead Security Engineer to design, build, and operate an enterprise-grade Digital Asset Custody and Wallet Orchestration Platform, shaping secure blockchain infrastructure across multi-chain networks.

This hands-on role demands cloud-native development, MPC/DKG, policy engines, and secure RESTful APIs; you’ll collaborate with product, security, and compliance teams to deliver scalable, compliant wallet services for institutional users.

Qualifications

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• 7+ years in software development with at least 2 years in blockchain technologies or digital assets.

Responsibilities

• Design, architect, and develop a production-grade digital asset custody and wallet orchestration platform.
• Implement secure key management workflows using MPC and distributed key generation.
• Build policy engines with multi-signature and multi-approval workflows.
• Develop multi-chain wallet capabilities across Ethereum, Bitcoin, Solana, Polygon.
• Manage transaction lifecycle, including fee estimation, signing, broadcasting, and retries.
• Create event-driven architectures and webhook processing for real-time blockchain state changes.
• Develop and secure RESTful APIs and microservices with OAuth 2.0, JWT, and API gateway patterns.
• Integrate with compliance and risk systems and ensure auditability.
• Instrument observability using Datadog, Dynatrace, Splunk; ensure resilience and HA on AWS.
• Collaborate with product, security, and business stakeholders to translate requirements into designs.

Skills

Java/J2EE

Python

Spring Boot

Flask/FastAPI

MPC

DKG

Policy engines

OAuth 2.0

JWT

RESTful APIs

AWS

Kubernetes

Terraform

CloudFormation

Education

Bachelor's degree in Computer Science or related field

Tools

Terraform

CloudFormation

Docker

Kubernetes

API Gateway

AWS services (EC2, EKS, Lambda, S3, RDS, IAM, SQS, SNS, KMS)

Datadog/Dynatrace/Splunk

OAuth 2.0, TLS/mTLS

Job description

JPMorgan Chase in Plano, Texas, seeks a Lead Security Engineer to design, build, and operate an enterprise-grade Digital Asset Custody and Wallet Orchestration Platform, shaping secure blockchain infrastructure across multi-chain networks.

This hands-on role demands cloud-native development, MPC/DKG, policy engines, and secure RESTful APIs; you’ll collaborate with product, security, and compliance teams to deliver scalable, compliant wallet services for institutional users.