3,144 Crypto & Web3 jobs
Open tech roles at companies in crypto, blockchain and web3.
Jr. Software Engineer
Fully remote junior software engineer at Optimum, a Web3 startup building a blockchain data acceleration network powered by RLNC. You'll prototype product ideas with the CTO and CPO, benchmark them against competitors, and iterate quickly using full-stack skills (Go, React/TypeScript) and AI coding tools like Claude Code and Cursor.
Backend Engineer - Web3 Payments Platform
Backend engineer in Singapore building high-performance, low-latency Web3 payments infrastructure at Fun — designing robust APIs for payments, settlement, and cross-chain routing. Day-to-day focus is on reliability, scalability, and cross-team collaboration in a fast-moving crypto-finance space.
Senior DevOps Engineer — Linux Infra for Web3
Papers is hiring a Senior DevOps Engineer in Zug to own and evolve Linux-based infrastructure for its Web3 operations — managing CI/CD pipelines, container deployments, and security hardening, running a modern observability stack with Azure AD identity management, and joining on-call rotations.
Information Security Manager
Leads information security operational risk for BVNK in Brazil, adapting global security and ICT control frameworks to secure and maintain the Brazilian VASP financial license under BCB Resolution 520/25. Day to day: running risk assessments and registers, audits, KRIs/KPIs, incident investigations, and security policies using GRC tools (Vanta and SOC 1 experience are pluses).
Senior Web Engineer
About Polymarket Polymarket is the world's largest prediction market platform. We enable individuals to express views on real-world events by trading on outcomes across politics, economics, sports, culture, and current…
Mobile Developer - React Native (Hybrid)
Build and maintain the React Native mobile app (iOS/Android) of a top-5 global cryptocurrency exchange in Hong Kong on a hybrid schedule — implementing secure, high-performance trading features with product, design, and backend teams using JavaScript/TypeScript, state management, and REST APIs.
Junior Rust Developer
Junior developer writing Rust for core modules, APIs, and libraries, supporting blockchain features such as smart contracts, cryptographic primitives, and consensus mechanisms. Day to day involves coding, code reviews, testing, and debugging alongside senior engineers in Hong Kong.
IAM | Okta SME (Austin, TX)
Okta/identity engineer who serves as the primary technical owner of the company's Okta environment in downtown Austin: administering SSO, MFA and auth policies, building SAML/OIDC/SCIM app integrations, and automating identity lifecycle workflows with Okta Workflows and APIs. The employer runs Bitcoin mining and AI data center operations.
Senior fullstack developer ('s-Gravenhage, ZH)
Senior fullstack developer at a young crypto/fintech startup in The Hague, building data pipelines and machine-learning solutions end to end: Python data engineering, C#/.NET backend services and REST APIs, React/TypeScript frontends, and DevOps (CI/CD, monitoring) on PostgreSQL and Microsoft Azure. Mainly on-site with colleagues.
Senior Executive Assistant - CEO Office
OKX will be prioritising applicants who have a current right to work in Singapore, and do not require OKX's sponsorship of a visa. Who We Are At OKX, we believe that the future will be reshaped by crypto, and…
Product Manager (Onboarding/KYC)
Mid-to-senior Product Manager owning the end-to-end onboarding journey — from registration through KYC verification to first deposit — at a card company. Day to day: funnel analysis, A/B testing, balancing UX with KYC/AML compliance, managing IDV/payment vendor integrations, and working with engineering, design, data, compliance, and legal.
C++ Software Engineer - Amsterdam- Sophisticated Prop Trading Firm
C++ engineer at a high-frequency proprietary trading firm in Amsterdam, building low-latency, high-throughput components for an in-house trading platform that collects quotes and trades from exchanges worldwide. Core stack is C++ on Linux, with strong algorithms/OOP; crypto-market knowledge is a plus.
Remote & Flexible Aws Devops Engineer | Ci/Cd & Sre
Senior DevOps/SRE engineer (aggregated posting; content spans several vendor listings) operating and improving AWS cloud infrastructure and reliability layers: Kubernetes/EKS workloads, Terraform IaC, CI/CD pipelines, observability, alerting, and incident response, with an on-call rotation. Contexts cited include healthcare, cybersecurity, and blockchain platforms.
Blockchain Developer (Backend Focus)
Backend-focused blockchain developer at a decentralized identity solutions company, working hybrid from Nelspruit, South Africa. Day to day: design smart contracts, build backend services and APIs, and integrate blockchain with databases using Go/Node.js/Python/Java, Solidity, Ethereum/Hyperledger, and SQL/NoSQL.
IT Security Lead
Hands-on IT Security Lead (individual contributor) securing a regulated real-world asset (RWA) tokenization platform: owning AWS security controls, managing the TRM risk register, reviewing smart-contract integrations and architectures, leading incident response, and designing wallet/transaction security. Requires 5-8 years in security with 2-3 years in crypto/web3.
Senior DevOps Engineer
Senior DevOps Engineer joining Lisk's platform team to own and evolve the AWS cloud infrastructure behind its business-finance platform: Terraform/OpenTofu IaC, secure keyless CI/CD, observability, disaster recovery, and fintech-grade security. Fully remote, with 4-6 hours overlap with European business hours.