3,154 Crypto & Web3 jobs
Open tech roles at companies in crypto, blockchain and web3.
Blockchain Security Engineer
Audits blockchain projects for security vulnerabilities, working directly with client development teams, contributing to security tools, and publishing security research. Core stack/focus: blockchain code auditing, cryptography, Linux, and Git.
Software Engineer, Backend Systems
Backend engineer at Fullstack, a startup building a unified crypto trading front end, working on risk/liquidation engines, blockchain state machines, and low-latency REST/WebSocket APIs. Core stack is Rust and Tokio; the role is on-site in San Francisco 5 days per week.
SME Tax Manager, Madrid
Company Founded by CPAs, tax attorneys, and engineers, Taxbit is the leading innovator automating global tax reporting for the digital economy. Taxbit's AI-enabled platform streamlines compliance related to digital…
Marketing Designer
Junior–mid level marketing designer at fomo, a crypto trading app, working in-person at the SoHo, NYC office. Day to day: turning brand and product direction into shipped creative across digital, social, paid, and experiential channels, primarily using Figma and Adobe Creative Suite.
Growth Data Analyst
Growth Data Analyst at Bithumb, a Korean cryptocurrency exchange, working on-site in Seoul (Gangnam) to plan and analyze data-driven projects that increase trading activity. Day-to-day: analyzing customer journeys and churn signals, designing A/B tests, validating exchange policies via correlation analysis, building KPI dashboards, and automating analysis/reporting with AI tools.
Fullstack Engineer / AI Engineer for BRAIINS MANAGER
Fullstack/AI engineer building Braiins Manager, the cloud platform for remote management of Bitcoin mining fleets, owning features end to end (NestJS/TypeScript, PostgreSQL, Redis, Kafka/BullMQ, gRPC, Angular/React, a Rust daemon, Kubernetes) plus developing the company's internal LLM agent platform (MCP, retrieval, orchestration, evals). Prague office or fully remote.
Senior Product Manager, Transact
Lead product strategy and execution for Auth, a high-demand crypto/stablecoin account-linking service that enables secure fund transfers between exchanges/wallets and partner platforms.
Senior Software Engineer - Go
Senior engineer building and optimizing high-throughput, low-latency Go services for QuickNode's blockchain RPC infrastructure. Day to day: architecting distributed systems, owning delivery through production, improving uptime/latency, and debugging complex production issues.
Senior Software Engineer - Go & Rust, Blockchain Infrastructure
Senior engineer at QuickNode designing, building, and operating high-throughput blockchain infrastructure in Go and Rust. Day to day: owning distributed systems from architecture through production, improving reliability, performance, and security, debugging production failures, and mentoring engineers.
Software Engineer, Trading Product
Build experimental trading products on the Aptos blockchain, including APIs, indexing services, and data pipelines for scalable trading infrastructure.
Full Stack Engineer
Full stack engineer at crypto payments company Oobit building end-to-end features across a React Native mobile app, React web frontend, and Node.js/NestJS backend APIs. Day to day includes shipping tested code, debugging production issues, and using AI coding tools like Cursor or Copilot.
Remote Blockchain Backend Engineer - Scale Secure Systems
Fully remote Blockchain Backend Engineer role: design and deploy backend services, optimize blockchain protocols, and help shape system architecture for blockchain products. Core focus areas are distributed systems, cryptography, and scalable backend development.
Blockchain Developer
Build a blockchain proof-of-concept for digital transfer-agency workflows, primarily on Ethereum (adaptable to Solana or Canton). Day to day: gather requirements and plan milestones with the team, produce security deliverables like threat models, write tested smart contracts, and deploy to testnet and mainnet within 90 days. In-office in Mangaluru.
Systems Lead / Architect (Post-Silicon)
Lead the post-silicon productization of Bitdeer's high-performance computing (ASIC/GPU) chips — architecting boards, firmware, drivers and servers from first silicon bring-up through validation, production and customer delivery. Core tech: PCIe, Linux drivers, BIOS/BMC, board hardware and cross-layer debugging.
Marketing Technology Manager, CRM Platform
Uphold is hiring a CRM Platform Engineer to technically own Customer.io end to end — the data model, integrations, workflow architecture and deliverability behind customer communication at scale across email, push, in-app and SMS. Core stack: Customer.io, SQL/data pipelines, REST APIs and webhooks, Liquid/HTML/CSS/JS templating.
Senior Software Engineer
A proprietary trading firm in Singapore is hiring a Trading Systems Engineer to build low-latency, high-throughput infrastructure for its high-frequency DeFi and traditional market making operations — including exchange connectivity, order management, and real-time market data — using Rust, C++, or Java alongside traders and quants.
Staff Product Security Engineer (Security)
Staff product security engineer on Phantom's security team doing offensive security for its self-custodial crypto wallet: running security assessments, finding and mitigating vulnerabilities in web/mobile apps via manual testing, automated tools and threat modeling, writing PoCs and reports, and joining incident response. Core focus: JavaScript/TypeScript, blockchain, cryptography.