Senior Blockchain Engineer
Compunnel
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 lifecycles.
- 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.
Vacancy posted 12 hours ago
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