Senior Blockchain Platform Engineer

We are seeking a Senior Engineer, Blockchain Platforms to help build and integrate the blockchain infrastructure layer that underpins our organization's digital asset custody and tokenization platforms. This is a hands-on engineering role focused on Layer-1 blockchain integration, core blockchain infrastructure components, wallet engineering, and custody-related blockchain workflows. The engineer will operate at the intersection of blockchain protocol mechanics and institutional custody systems, working effectively across custody, security, and platform teams.

Key Responsibilities

• Integrate company systems with existing Layer-1 blockchains.

• Evaluate and, where appropriate, contribute to building or extending Layer-1 capabilities to meet custody, scalability, or resiliency needs.

• Understand chain-level mechanics such as transaction lifecycle, finality, forks, reorgs, and event propagation.

• Design and build core blockchain infrastructure services, including indexers, event processors, block explorers, and chain data services.

• Contribute to wallet architecture and development, including blockchain-facing wallet services and transaction creation and signing workflows.

• Share responsibility for custody-related blockchain workflows, including on-chain transaction execution and event monitoring.

• Help define safe patterns for interacting with smart contracts and token standards from custody platforms.

• Apply modern engineering practices to build reliable, testable, and observable blockchain services.

• Collaborate effectively across custody, security, and platform teams to support blockchain infrastructure and custody-related capabilities.

Required Qualifications

• 7+ years of professional software engineering experience.

• Hands-on experience building or integrating blockchain or distributed ledger systems.

• Strong understanding of Layer-1 blockchain protocols and transaction life cycles.

• Experience building backend services, APIs, and infrastructure components.

• Proficiency in one or more programming languages such as Go, Java, Rust, or Python.

• Ability to work effectively across custody, security, and platform teams.

Preferred Qualifications

• Experience with blockchain indexers, explorers, or chain analytics systems.

• Familiarity with wallet architecture and blockchain signing workflows.

• Exposure to crypto custody platforms or security-sensitive financial systems.

• Strong debugging instincts in distributed, asynchronous environments.

• Experience using AI tooling to support complex software development.

What Success Looks Like

• Blockchain integrations are predictable, observable, and resilient.

• Wallet and transaction pipelines behave correctly across normal and edge-case chain conditions.

• Custody systems interact with blockchains safely and consistently.

• Incidents related to blockchain dependencies are well understood and quickly diagnosed.