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Core AI Consulting Inc
$105k - $150k estimated
San Francisco Bay Area US

Role Overview

We are seeking a Senior Engineer – Blockchain Platforms to build and integrate the blockchain infrastructure supporting digital asset custody and tokenization platforms. This hands-on role focuses on Layer-1 blockchain integration, core infrastructure services, wallet engineering, and custody-related blockchain workflows. The engineer will collaborate with custody and security teams to ensure blockchain interactions are secure, reliable, observable, and production-ready.


Location – Austin/Dallas/Charlotte/Bay Area


Key Responsibilities

  • Integrate enterprise platforms with Layer-1 blockchains and evaluate protocols based on custody, scalability, security, and resilience requirements.
  • Design and build blockchain infrastructure services, including indexers, event processors, chain-data APIs, observability tools, and cross-chain components.
  • Develop wallet services and transaction pipelines covering transaction creation, signing, submission, monitoring, and reconciliation.
  • Integrate wallet services with MPC, HSM, key management, and signing platforms.
  • Design for chain-specific conditions such as finality, forks, reorganizations, network congestion, and transaction failures.
  • Develop safe patterns for interacting with smart contracts, token standards, and blockchain networks.
  • Ensure blockchain data pipelines and services are accurate, scalable, testable, observable, and auditable.
  • Support troubleshooting, incident response, failure recovery, and root-cause analysis across distributed blockchain environments.
  • Use generative and agentic AI tools to accelerate protocol analysis, development, testing, documentation, and knowledge sharing.

Qualifications

  • 7+ years of professional software engineering hands-on experience building or integrating blockchain, cryptocurrency, or distributed ledger systems.
  • Strong understanding of Layer-1 protocols, transaction lifecycles, finality, forks, reorganizations, and event propagation.
  • Proficiency in developing backend services, APIs, event-driven systems, and infrastructure components.
  • Proficiency with blockchain indexers, explorers, chain analytics, or on-chain data platforms.
  • Proficiency in wallet architecture, transaction signing, and blockchain submission workflows.
  • Strong expereince with smart contracts, token standards, and cross-chain interoperability.
  • Proficiency with integrating with MPC, HSM, key management, or digital asset custody platforms.
  • Strong troubleshooting skills in distributed, asynchronous, and security-sensitive environments.
  • Ability to collaborate effectively across engineering, custody, cybersecurity, risk, and platform teams.
  • Strong experince in Go, Java, Rust, Python, or a comparable programming language.
  • Experience using generative or agentic AI tools to support complex software engineering workflows is beneficial.

What does a blockchain developer do?

A blockchain developer is a software developer who specializes in the development of applications that make use of blockchain technology

Some of the responsibilities of a blockchain developer may include:

  • Designing and implementing smart contracts.
  • Creating and maintaining the infrastructure that supports the blockchain network, and developing user-facing applications that make use of the blockchain.
  • Additionally, a blockchain developer may also be responsible for researching and staying up-to-date with the latest developments in blockchain technology, in order to ensure that their applications are secure and efficient.