This position is no longer available
Berlin, Germany Hybrid EUR 70,000 – 130,000 / year

CEF AI was looking for a Lead Blockchain Engineer

Requirements

  • 7+ years of engineering experience with strong expertise in Rust.
  • Deep experience working with Substrate and blockchain runtime development.
  • Strong understanding of applied cryptography, including hashing, signatures, and ZK proofs.
  • Experience architecting distributed systems and consensus mechanisms.
  • Familiarity with on chain governance frameworks such as Polkadot/OpenGov.
  • Experience building or modifying core blockchain protocol components.
  • Experience deploying and maintaining blockchain nodes and networks.
  • Hands on experience running testnet and mainnet infrastructure.
  • Strong experience with Linux environments and containerized deployments.
  • Experience with Docker / Docker Compose (Kubernetes is a plus).
  • Familiarity with monitoring systems, logs, and network metrics.(Kubernetes is a plus)

Nice to Have

  • Experience with Substrate FRAME, runtime development, or pallet design.
  • Background in Computer Science or equivalent high impact Web3 experience.

Benefits

  • Real Equity: We treat early team members like partners. You’ll receive meaningful equity so the upside you help create is shared.
  • Direct Access to Leadership: You are part of the core conversation. You will work side by side with the CEO and founders every day to solve hard problems and set the strategy.
  • Work on Hard, Emerging Problems: We are building infrastructure for AI agents operating on sensitive, real-time data without relying on centralized black box platforms. While parts of this ecosystem exist, the architecture for doing it securely and reliably at scale is still evolving.
  • Small Team, High Output: We believe the best teams are small and extremely capable. AI tools increase individual leverage, so we hire fewer people and expect a much higher level of ownership and output.
  • Autonomy With Accountability: We hire people who don’t wait for permission to solve problems. If you see a better way to build something, you’re expected to propose it and ship it.
  • Remote With Real Collaboration: We are a remote-first team but believe strong collaboration requires real interaction. The team meets regularly in San Francisco and Europe for focused building sessions and hackathons.
Job Details
Location Berlin, Germany
Work mode Hybrid
Salary EUR 70,000 – 130,000 / year
Department Engineering
Category DevOps & SRE
Posted 7 months ago
About company
CEF AI

A unified orchestration, data and compute platform that replaces legacy batch processing with agent execution. Built for edge-deployment with adaptive context, complete data control and full data lineage.

CEF provides a complete infrastructure stack for multi-agent systems, featuring real-time evals, data lineage, live event-driven compute, unified adaptive memory, and sovereign data vaults. The platform supports on-prem, VPC, cloud, and hybrid deployments with full data sovereignty and auditability.

Designed for robotics, gaming, and security applications, CEF enables enterprises to deploy AI agents that deliver measurable results with real-time feedback loops and full ownership of data and models.

All jobs at CEF AI Visit website