368 Solidity jobs
Open roles that use Solidity for smart-contract and blockchain development.
Security Engineering Lead
Lead security audits and coordinate hardening efforts for Espresso’s Rust/EVM-based rollup infrastructure, guiding internal and external teams to secure a live cross-chain base layer.
Middle/Senior Full Stack Engineer (.NET + React)
Build and own end-to-end features in a .NET 10 backend and React dashboards, integrating payments/KYC and Web3 services while leveraging AI tools for faster development.
Ingeniero/a de software Blockchain & Activos Digitales (DLT) | 100% Remoto
Build and integrate blockchain/DLT solutions, smart contracts, and digital-asset platforms using Solidity, Java, and Python for enterprise clients.
Staff/Senior Staff Web3 Big Data Engineer
Builds and optimizes Web3 big-data pipelines (on-chain transactions, smart-contract events) and integrates AI/LLM features like Text2SQL and anomaly detection to power analytics, risk models, and AI-driven data products.
Staff/Senior Staff Web3 Big Data Engineer
Build and optimize OKX’s big-data platform for on-chain analytics, fraud detection, and AI-driven trading tools using Spark, Flink, Kafka, and vector databases.
Senior Lead Software Engineer- Back End- Madrid
Build and maintain secure, scalable back-end integrations for digital asset services using Java/Spring Boot, Kafka, and AWS, ensuring compliance with financial regulations.
Senior Lead Software Engineer- Back End- Madrid
Build and maintain secure, scalable back-end integrations for digital asset services using Java/Spring Boot, Kafka, and AWS, ensuring compliance and high-availability for trading and wallet systems.
Blockchain Engineer (Rust, Cuda, Cryptography, Wasm)
Build a new blockchain from scratch and ship Web3-powered gaming and DeFi dApps end-to-end using Rust, Solidity, TypeScript and AI tools.
Associate, Full Stack Developer (Web3/Crypto & AI)
Builds full-stack web apps integrating Web3/Crypto (smart contracts, dApps) and AI (LLMs, RAG) for clients, bridging frontends with blockchain and AI backends while ensuring security and scalability.
Blockchain Software Developer
Blockchain Software Developer - Digital Assets Platform Location: London United Kingdom Remote Type: Hybrid Time Type: Full time Job Description 26983955 Blockchain Software Developer - Digital Assets Platform (Open) Di…
Blockchain Developer (Junior)
Build Ethereum smart contracts in Solidity and create decentralized apps (dApps) using Web3 libraries like ethers.js or web3.js.
Blockchain Software Developer
Blockchain Software Developer - Digital Assets Platform Location: London, United Kingdom Employment Type: Regular 26983955 Blockchain Software Developer - Digital Assets Platform (Open) Discover your future at Citi Work…
Senior Blockchain Engineer
Senior Blockchain Engineer - Digital Assets Platform Location: London, United Kingdom Employment Type: Regular 26983945 Senior Blockchain Engineer - Digital Assets Platform Discover your future at Citi Working at Citi i…
Ведущий системный аналитик (Blockchain / Ethereum)
Leads system analysis for an Ethereum-based tokenization platform, gathering requirements, modeling dApp architecture, and drafting technical specs for RWA compliance workflows.
Senior Associate, Assurance Advisory (Blockchain & Digital Assets), Financial Services
Senior Associate audits blockchain systems, smart contracts (Solidity), and digital asset custody for financial clients, blending technical code review with regulatory and business-risk analysis.
Backend Java Blockchain Engineer - Digital Assets Platform
Build and integrate Web3 components for Citi’s digital asset platform, including smart contracts, blockchain protocol connectors, and on-chain event listeners using Java, Solidity, and Web3 libraries.
Level 1 Full Stack and Mobile App Developer
Builds and maintains web and mobile apps using JavaScript (React/Vue), Node.js, and Flutter, working across the full stack with guidance from senior developers.