> Markdown version of [/jobs/ext/4516850-blockchain-security-engineer](https://www.wearedevelopers.com/jobs/ext/4516850-blockchain-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Blockchain Security Engineer

- **Company:** Code
- **Location:** Mount Pleasant Township, PA, United States (Remote available)
- **Experience:** Experienced
- **Contract:** Permanent contract
- **Skills:** Programming Tools, Distributed Systems, Blockchain, Software Security, Backend, Blockchain Security
- **Published:** November 2, 2026
- **Apply:** https://www.juju.com/job/2_168646518

## About the Role

* Strong working knowledge of blockchain systems (especially EVM ecosystems)
 * 4+ years in security engineering across distributed systems, crypto, xrbllit or infrastructure
 * Experience threat modeling and securing complex backend systems
 * Solid foundation in application security
 * Familiarity with onchain primitives and workflows (smart contracts, bridges, DEXs, asset tracing, etc.)
 * Awareness of emerging ecosystem trends and protocol-level changes
 * Experience using modern AI-assisted development tools is a plus
 * Comfortable operating in a fast-paced, highly cross-functional environment
 * Prior mentorship or leadership experience is a plus

## Description

We're partnered with a large-scale platform in the digital asset space where security is absolutely mission-critical. The team is responsible for protecting high-value assets while enabling millions of users to safely interact with blockchain-based systems.

They're building out a specialized security group focused on securing everything from protocol integrations to wallet infrastructure, and need engineers who can operate deeply across crypto, distributed systems, and application security.

What You'll Do:

 * Identify gaps in crypto and infrastructure security, and drive cross-functional initiatives to address them
 * Lead threat modeling, security reviews, and architecture assessments across blockchain integrations and backend systems
 * Partner closely with engineering teams on secure design and implementation (including smart contract-related systems)
 * Contribute to the development of internal security tooling and long-term roadmap
 * Spot automation opportunities, build proofs of concept, and help productionize solutions
 * Track and assess emerging changes in the ecosystem (new protocols, upgrades, cryptographic techniques)
 * Share findings through internal write-ups, research, and knowledge sharing