Blockchain Developer

Job not on LinkedIn

🕒 May 18

🏄 California – Remote

🏄 California – Remote

⏰ Full Time

🟡 Mid-level

🟠 Senior

⛓️ Blockchain Engineer

👻 Ghost score 23%

What it means: how likely this posting is sitting open without active hiring.How to read it: 60% or higher means we think this is a ghost. Lower scores are less of a worry.How we score it: age, reposts, open roles vs team size, how fast jobs close, and whether pay is listed.Fine print: an estimate from public data, not a judgment of the company. Real jobs can score high, so treat it as a hint, not a fact.

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decircle

WebsiteLinkedInAll Job Openings

1 - 10 employees

Founded 2019

📣 Marketing

📦 Logistics

💼 Consulting

Marketing • Logistics • Consulting

Decircle is a talent partner specializing in staffing and recruiting for decentralized organizations and projects related to Web3. As a boutique recruitment agency, Decircle focuses on identifying and attracting talent in the blockchain and Web3 sectors, fostering connections within the community of decentralization enthusiasts and guiding them in finding their roles in the evolving decentralized landscape.

📋 Description

• Extract, normalize, and store data from Ethereum, L2s such as Arbitrum and Solana, plus relevant protocols. • Design and implement secure Solidity/EVM contracts to enable data adapters, allocation validation, and rule evaluation. • Build and maintain services that integrate on-chain data to internal systems and external APIs. • Develop robust, testable logic for event ingestion, data orchestration and state transitions. • Implement access controls, pausability, monitoring, and on-chain and off-chain audit trails. • Collaborate with product and engineering teams to design resilient, auditable, and automated financial workflows. • Contribute to shared libraries and improve tooling for data ingestion, validation, and analysis.

🎯 Requirements

• Strong Python proficiency for data processing, backend services, and automation. • Extensive hands-on experience with Solidity, EVM tooling, and DeFi integrations. • Practical use of The Graph (subgraphs), Alchemy or Infura, Dune or Flipside, or custom indexing tools. • Understanding of decentralized data models, indexing, and event-driven architectures. • Track record of clean, maintainable, and secure code, with thorough tests and reviews. • Experience owning deliverables end-to-end and working in distributed, async teams. • Background in fintech, data engineering, or DeFi infrastructure. • Proficiency in C++ or Java for performance-sensitive components (Nice to Have). • Experience with formal verification, bug bounty programs, or audit coordination (Nice to Have). • Familiarity with time-series and relational data models (Nice to Have). • Exposure to infrastructure basics such as containers and Infrastructure as Code, for example Docker and Terraform; knowledge of Kubernetes is a plus but not required (Nice to Have).