Posted on 09 Apr 2026

Blockchain Security Engineer

United States (Remote/Hybrid)
Permanent
$190,000 - $230,000

About the Role

Our Blockchain Security team is focused on protecting digital assets and sensitive data across decentralized systems - from on-chain protocols to wallet infrastructure. As blockchain technology continues to evolve, securing the systems that interact with these requires specialized expertise in distributed ledgers, cryptographic protocols, and smart contract ecosystems.

This role involves identifying security risks across blockchain integrations, improving defensive infrastructure, and working closely with engineering teams to build resilient systems that safely interact with decentralized networks. 

Responsibilities

  • Analyze and identify weaknesses within blockchain security infrastructure and coordinate initiatives across teams to resolve them.
  • Conduct security reviews, threat modeling, and risk assessments covering blockchain protocols, smart contracts, and other distributed ledger technologies.
  • Collaborate with software engineering teams to provide guidance on secure architecture and smart contract development practises.
  • Work alongside internal platform and tooling teams to help shape the strategy and roadmap  for blockchain security solutions and monitoring systems.
  • Discover opportunities to improve efficiency through automation, develop proof-of-concept solutions, and define detailed technical specifications for implementation.
  • Monitor and evaluate emerging developments in blockchain ecosystems, including network upgrades, protocol changes, and innovations such as zero-knowledge cryptography.
  • Share insights with internal teams and the wider technical community through written reports, technical discussions, and presentations on vulnerabilities, incident analysis, and emerging risks. 

Required Qualifications

  • Strong knowledge of blockchain systems, particularly ecosystems based on Ethereum Virtual Machine (EVM).
  • 4+ years of experience in security engineering, ideally with a focus on blockchain technologies, distributed systems, or cryptographic infrastructure.
  • Experience designing secure architectures and performing threat modeling for high-risk backend systems handling digital assets.
  • Solid expertise in application security and cryptography, including practical understanding of cryptographic mechanisms commonly used in blockchain networks such as digital signatures, hashing, multiparty computation, and zero-knowledge systems.
  • Familiarity with core on-chain concepts including block explorers, transaction tracing, bridging protocols, decentralized exchanges, NFTs, and smart contract interactions.
  • Awareness of evolving blockchain developments such as protocol improvement proposals and innovations like restaking mechanisms.
  • Ability to mentor colleagues and provide technical guidance within security or engineering teams.
  • Experience working in cross-functional environments involving multiple engineering and product stakeholders.
  • Strong communication skills, with the ability to explain complex security risks and technical concepts to both technical and non-technical audiences.
  • Experience incorporating AI-assisted development tools into workflows (e.g. coding copilots, AI development assistants) while maintaining responsible oversight and quality control. 

Preferred Experience

  • Familiarity with the security models of non-EVM blockchain ecosystems
  • Advanced understanding of cryptographic technologies such as zk-SNARKs, fully homomorphic encryption (FHE), and multiparty computation (MPC).
  • Experience working with data platforms or analytics tools such as MongoDB, Snowflake, Databricks, or blockchain analytics platforms. 
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