Browse Blockchain Jobs
Search 9 curated tech job listings scraped in real-time from LinkedIn, Glassdoor, RemoteOK, and more. Filter by role, location, seniority, and source to find your next opportunity.
9 jobs found for "API Design"
(Sr.) Java Engineer - (Admin & Payment)
…designing, developing, and unit-testing new features and modifications Design data structures and utilize appropriate design patterns to model and Implement business logic Document source code and generate readable API documentations Master…
Expert JavaScript Engineer
…features across the stack: from technical design and architecture through implementation, testing, deployment, and ongoing optimization Build and maintain backend services and APIs supporting authentication, wallets, and payments infrastructure Develop user-facing … frontend tooling for both end-user and developer-facing applications Collaborate closely with Product, Design, and other engineering teams to deliver robust, high-impact features Contribute to performance, reliability, and scalability improvements…
Senior JavaScript Engineer
…features across the stack: from technical design and architecture through implementation, testing, deployment, and ongoing optimization Build and maintain backend services and APIs supporting authentication, wallets, and payments infrastructure Develop user-facing … frontend tooling for both end-user and developer-facing applications Collaborate closely with Product, Design, and other engineering teams to deliver robust, high-impact features Contribute to performance, reliability, and scalability improvements…
Senior JavaScript Engineer
…features across the stack: from technical design and architecture through implementation, testing, deployment, and ongoing optimization Build and maintain backend services and APIs supporting authentication, wallets, and payments infrastructure Develop user-facing … frontend tooling for both end-user and developer-facing applications Collaborate closely with Product, Design, and other engineering teams to deliver robust, high-impact features Contribute to performance, reliability, and scalability improvements…
Core Developer - Platform
…function. In these positions, you will: Design and implement the shared infrastructure and services that the Polkadot platform is built on Build the SDKs and APIs that developers use to create…
(Sr.) Java Engineer, Matching Engine Team New
…modifications. Design, optimize, and maintain the core matching engine, order book management, and transaction clearing components. Design data structures and utilize appropriate design patterns to model and implement business logic. Design … latency data streaming services using WebSockets or related protocols. Document source code and generate readable API documentations. Master software engineering tools like Git, Jenkins, and Maven. Requirements Degree in CS or equivalent…
Solution Architect, EMEA
…largest Banks and Financial Institutions. From deal close through to production, you lead architecture design, integration, and deployment on customer infrastructure. You also bring that delivery expertise into strategic pre-sales cycles … accountability for the solutions delivered Defining enterprise customers’ setup with Fireblocks, including API integrations, security architecture, and architecture documentation Steering complex integrations across core banking, custody, tokenisation, and Travel Rule through…
MERN Stack + Web3 Developer
…smart contracts and blockchain functionality using Web3.js, Ethers.js, or similar libraries Collaborate with product managers, designers, and blockchain engineers Write clean, maintainable, and testable code Troubleshoot and debug applications Stay updated with … Web3.js/Ethers.js Familiarity with Solidity and Ethereum development tools (e.g., Truffle, Hardhat) Understanding of REST APIs and integration practices Strong problem-solving skills and a proactive attitude Good communication and collaboration skills…
Staff/Senior Java Engineer, OKX Web3 Wallet
…comparable stacks, able to independently design and build medium-to-large backend modules and reason about the mechanics behind the frameworks you use. Strong system design ability. Experience with complex or high … locks, data consistency, rate limiting, and service degradation. Able to own module- or service-level design and clearly explain the core flow, failure scenarios, and key trade-offs. Cognitive ability and judgment…