Tech jobs
Job listings
Fintech backend developer
Builds and maintains Humaniq’s token exchange, investor profiles, crowdfunding portal, and analytics dashboards using Go and Ethereum nodes.
Senior Java Developer – Spring Expert (Belfast)
Build and maintain backend services using Java and Spring Framework in a product-focused team.
Senior Full-Stack Engineer (Web3)
Build web apps and APIs for blockchain-enabled investment products across Ethereum, Solana, and others using Node.js, React, and TypeScript.
OP Labs - Institutional Sales Lead
OP Labs builds Optimism, an open-source blockchain network that powers the next generation of financial infrastructure. Hundreds of companies, from the world's largest enterprises like Sony, Coinbase, Kraken,…
OP Labs - Senior Software Engineer, Protocol (Rust)
Builds and maintains the OP Stack, a Rust-based open-source blockchain protocol powering Ethereum L2 networks, focusing on core client infrastructure and protocol upgrades.
OP Labs - Sr. Product Manager, Fintechs & Exchanges
Drive adoption of onchain financial services by defining product strategy for fintechs and exchanges, integrating DeFi features into their platforms while ensuring compliance and user experience.
Core Blockchain Engineer
Build and scale Ethereum EVM infrastructure and node services for a blockchain platform, working with Go, Rust, and Postgres to power on-chain applications.
Senior React Full stack Developer
Build full-stack web apps for fast-paced startups using React, Node, Python, or Ruby, deployed on AWS/GCP/Azure and communicating directly with 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.
Ведущий системный аналитик (Blockchain / Ethereum)
Leads blockchain/Ethereum system analysis for a product company, designing core crypto infrastructure and ensuring scalability/security of decentralized solutions.
Senior Lead Software Engineer- Back End- Madrid- Digital Assets
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 Software Engineer, Stablecoins
Build and scale Coinbase Custom Stablecoins: write Solidity smart contracts and backend services in Go to mint, burn, and manage USDC-backed stablecoins for partners.
Protocol Security Researcher
Researches Ethereum protocol security by reviewing specs, fuzzing clients, and coordinating disclosures to prevent mainnet vulnerabilities.
Senior Rust Engineer for Exciting Blockchain Project
Launch Legends (Parent Company) – www.launchlegends.io Shape the Future of Blockchain—Bringing Business On-Chain We’re offering a unique opportunity to join Launch Legends (and Autheo) as a part-time Equity Cofounder .…
Senior DevOps / Infrastructure Engineer
Senior DevOps engineer maintaining and automating a globally-distributed blockchain node fleet, building AI-driven guardrails and tooling for safe, scalable operations.
Customer Support Analyst
The 4 biggest blockchain strengths are also its weakness Permissionless nature leads to fragmentation of meaning Decentralization leads to too many standards Immutability leads to exponential data + query…
Blockchain Software Developer
Build and integrate Web3 components for Citi’s digital asset platform, including smart contracts, blockchain protocol connectors, and on-chain event listeners using Solidity, Java, and Node.js.