full stack developer

backend developer

web developer

software developer

business developer

blockchain developer

BlockVerse Solutions LLC

About the RoleWe&rsquo;re hiring a Backend Developer (Java) to engineer our high-performance trading and blockchain infrastructure. The ideal candidate has experience in designing low-latency distributed systems and understands how to build scalable microservices for fintech and Web3 environments. You&rsquo;ll work closely with DevOps, frontend, and product teams to ensure reliability and speed across all backend services.Responsibilities<ul><li>Design, develop, and maintain backend services in Java (Spring Boot, Netty, Disruptor).</li><li>Implement matching engines, balance ledgers, settlement systems, and transaction audit trails.</li><li>Optimize backend architecture for throughput and fault tolerance.</li><li>Integrate Kafka, Redis, and PostgreSQL/NoSQL databases for high-speed processing.</li><li>Implement market data APIs and event-driven streaming services.</li><li>Collaborate with DevOps for CI/CD deployment, monitoring, and scaling.</li><li>Conduct secure code reviews and optimize database query performance.</li><li>Maintain system observability and performance metrics.</li></ul>Additional Dubai Hiring Requirements<ul><li>Minimum 5 years of backend experience in fintech, blockchain, payments, or exchange platforms.</li><li>Experience developing blockchain-integrated systems, digital asset exchanges, or Web3 APIs is highly desirable.</li><li>Familiarity with microservice orchestration (Kubernetes/Docker).</li><li>Experience building REST/gRPC and WebSocket APIs for trading data.</li><li>Knowledge of AWS or GCP cloud environments is preferred.</li><li>Strong grasp of security compliance, data integrity, and audit trails for financial systems.</li></ul>Job Type: Full-time

Backend Developer

Oxford Knight

This growing crypto trading firm has seen strong growth over the last 4-5 years, with returns consistently over 30% and not being adversely affected by the wild swings in crypto success due to their robust and sensible strategies. They are now launching a high priority DeFi trading desk and need a pragmatic Lead Developer to help architect and scale the DeFi infrastructure from scratch.Working closely with the founders, you'll own key components of the trading system and, as they scale, you'll help introduce Rust for performance-critical components. If you thrive when contributing to technical decision-making as a hands-on engineering leader, and take particular pride in choosing the right tool for each challenge, this role would be perfect for you.Skills and Experience Required:<ul><li>Expert-level Python skills, including async/await patterns, scalable architecture, performance tuning</li><li>Strong De-Fi + Blockchain knowledge (AMMs, MEV, liquidations, etc.)</li><li>Experience building production-ready microservices in real time</li><li>Familiarity with modern AI tools to boost productivity</li></ul>Desirable:<ul><li>Familiarity with Rust is a major plus</li><li>Knowledge of trading systems and financial markets</li></ul>

Lead Python Developer

Selby Jennings

<div>
 
 A fast-growing trading firm is expanding its newly launched
 
 DeFi trading desk
 
 and is hiring a
 
 Lead Python Developer
 
 to help architect and scale its infrastructure from the ground up. This is a rare opportunity to be among the first technical hires in a high-impact initiative, owning core components of a production trading system and working closely with the founding team.
 
 
 
 
 
 
 Key Responsibilities:
 
 
 <ul>
 <li>
 Extend and scale Python-based DeFi trading infrastructure
 </li>
 <li>
 Build high-performance integrations with DeFi protocols and smart contracts
 </li>
 <li>
 Create real-time blockchain data pipelines for event processing and market signals
 </li>
 <li>
 Design new microservices to expand automation and trading capabilities
 </li>
 <li>
 Own critical system components from architecture to deployment
 </li>
 <li>
 Optimize system performance, with potential use of Rust for low-latency paths
 </li>
 <li>
 Apply AI-powered tooling (e.g., Claude, Codex, Cursor) to maximize development speed
 </li>
 <li>
 Contribute to technical decision-making as a hands-on engineering leader
 </li>
 </ul>
 
 
 
 
 
 Must-Have Skills:
 
 
 <ul>
 <li>
 Expert-level Python (async/await, scalable architecture, performance tuning)
 </li>
 <li>
 Experience with distributed systems and real-time microservices
 </li>
 <li>
 Working knowledge of DeFi concepts (AMMs, MEV, liquidations)
 </li>
 <li>
 Ability to read and understand Solidity smart contracts
 </li>
 <li>
 Comfortable using AI-assisted development tools
 </li>
 <li>
 Willingness to relocate and work full-time on-site in Dubai
 </li>
 </ul>
 
 
 
 
 
 Nice-to-Have Skills:
 
 
 <ul>
 <li>
 Familiarity with Rust (expected to be introduced for performance-critical components)
 </li>
 <li>
 Experience with trading systems (order management, market data, execution engines)
 </li>
 <li>
 Understanding of financial markets and trading strategies
 </li>
 <li>
 Proven adaptability across programming languages and tools
 </li>
 </ul>
 
 
 
 
 
 Team Fit:
 
 We're looking for someone who is:
 
 <ul>
 <li>
 Ambitious and self-directed - excited to build from scratch
 </li>
 <li>
 Pragmatic - balances speed with engineering rigor
 </li>
 <li>
 Product-minded - cares about the "why" behind the code
 </li>
 <li>
 Fluent in high-stakes problem solving - thrives under pressure and uncertainty
 </li>
 </ul>
 
 
 
 
 
 Apply Now!
 
 
</div>

Lead Python Developer - DeFi Infrastructure

TOKEN 13 SOFTWARE L.L.C

We’re on a mission to build sleek blockchain wallet apps and Web3 platforms that redefine user experience. Join our ambitious team and help shape the future of crypto usability. Job description: We are looking for a skilled Solidity Smart Contract Development Engineer to design, develop and deploy blockchain-based smart contract solutions. The ideal candidate should have extensive experience in smart contract development, be familiar with TRON, the Ethereum platform and its related technology stack, and be able to build innovative blockchain applications in an efficient and secure environment. Responsibilities: o Design and develop efficient and secure smart contracts, and conduct code audits and optimizations. o Write and deploy smart contracts using the Solidity programming language to ensure contract security and scalability. o Participate in blockchain application system architecture design, provide technical solutions and suggestions. o Collaborate with the team to develop and integrate decentralized applications (DApps). o Conduct unit testing and integration testing of smart contracts to ensure the stability and security of their functions.Conduct regular audits of smart contracts to identify and fix potential security bugs. o Track the latest technology trends in the blockchain industry, evaluate new tools and technologies, and promote technological innovation. o Support the maintenance and upgrade of smart contracts, handle bug fixes and optimizations after deployment. Job requirements: • Education : Bachelor&#x27;s degree or above in computer science, software engineering, information technology or related majors. • Technical skills : or Familiar with the Solidity programming language, with a deep understanding of its syntax, data structures, and memory model. o Familiar with Ethereum blockchain platform and related technologies, including Web3.js, Ethers.js, Truffle, Hardhat and other tools. o Have experience in developing smart contracts, able to conduct Performance optimization and security audits. o Familiar with security issues and best practices of smart contracts, such as reentry attacks, integer overflows, timestamp dependencies, etc. o Candidates with experience in backend development (such as Golang, Rust, etc.) are preferred.

Solidity Smart Contract Development  Engineer

1inch Labs

1inch is the DeFi ecosystem building financial freedom for everyone. 1inch products help users and builders trade, hold and track digital assets - with the self-custody, comprehensive security and the intuitive user experience they need to unlock the potential of true crypto ownership. 1inch protocols and APIs provide core infrastructure across the DeFi industry and beyond.So if you re someone who thinks big, moves fast and wants to make an impact right from day one, then get ready to join our industry-changing team.Location: We hire with a focus on Dubai and Europe. For this role, we prefer candidates who are either based in Dubai or working remotely within +/- 4 hours GST time.As a Senior QA Engineer for our Developer Portal, you ll be responsible for ensuring the quality, performance, and security of our Web3 APIs SaaS platform. You ll work on testing both developer-facing web applications and underlying APIs, validating blockchain integrations, and ensuring a seamless developer experience. Your work will directly impact the reliability of our DeFi infrastructure and the satisfaction of the developer community using the 1inch APIs platform.ResponsibilitiesDesign and execute test plans for UI, REST APIs, WebSocket APIsEnsure the accuracy of API documentation, code samples, and developer toolsConduct cross-browser and cross-device testing for the Developer Portal UIActively participate in the improvement of quality assurance processes and procedures on the projectDevelop test data strategies for blockchain environments using mocks, simulators, and public testnets. Partner with developers, product managers, and blockchain engineers to define acceptance criteria and embed QA early in the development cycleIntegrate automated tests into CI/CD pipelines (GitHub Actions)Mentor junior QA engineers on testing methodologiesRequirements5+ years in QA engineering, with 2+ years working on SaaS/API productsBasic knowledge of Web3 fundamentals: blockchain concepts, EVM chains, web3 nodes, wallets, and smart contractsProven experience in API testing and automation frameworksProficient in writing and maintaining unit, integration, and end-to-end testsExperience in CI/CD environments with Git-based workflowsGeneral understanding of Agile/Scrum methodologiesStrong understanding of QA methodologies for both UI and API layersSkillsJavaScript/TypeScriptUnit TestingAPI Testing - Rest, Websockets, Automation Frameworks - Playwright, CodeceptJSCI/CD - Git-based Workflows - Github ActionsTicketing Systems - JiraExcellent English communication skills (written and spoken)Nice to haveFamiliarity with observability tools (Grafana) for monitoring performance and stabilityPrevious experience in Web3, De-Fi, Blockchain and/or Cryptocurrency Why work for us?Join a young, creative team in a fast-paced and supportive environmentWe re open to new ideas   if you ve got a vision, pitch it and make it happenEnjoy competitive pay that matches your skills and experienceBe part of a company that s shaping the future of DeFiTake time when you need it   we offer unlimited vacation daysGet fully compensated for your work gear   we ll set you up for successTravel with us! We host an annual team retreat at a top international locationWe may use artificial intelligence (AI) tools to support parts of the hiring process, such as reviewing applications, analyzing resumes, or assessing responses. These tools assist our recruitment team but do not replace human judgment. Final hiring decisions are ultimately made by humans. If you would like more information about how your data is processed, please contact us.

Senior QA Engineer

About the RoleBlockVerse Solutions is seeking a seasoned UX leader to join our Dubai product team. This is a key position responsible for leading user experience design across high-impact fintech, blockchain, and Web3 platforms. You&rsquo;ll manage a growing team of designers and collaborate directly with developers, product managers, and stakeholders to deliver products that combine intuitive design with powerful functionality.Responsibilities<ul><li>Lead and mentor the UX/UI design team to deliver exceptional user experiences across web and mobile platforms.</li><li>Own design projects from research and conceptualization through to high-fidelity design and developer handoff.</li><li>Establish and maintain design systems, standards, and accessibility best practices.</li><li>Conduct user research, testing, and analyze data to refine product usability.</li><li>Collaborate with product and engineering teams to align business goals with user needs.</li><li>Facilitate design critiques, workshops, and sprint reviews.</li><li>Foster a user-first design culture across the organization.</li><li>Evolve UX processes for fast-paced fintech and blockchain product development environments.</li></ul>Requirements<ul><li>5&ndash;8 years of professional UX/UI design experience, including at least 3 years in a senior or lead role.</li><li>Strong portfolio demonstrating end-to-end product design in fintech, SaaS, or complex web platforms.</li><li>Expert in Figma, Adobe XD, or other prototyping tools.</li><li>Excellent understanding of UX principles, design systems, WCAG accessibility, and usability heuristics.</li><li>Experience designing for blockchain, crypto, or Web3 platforms is a strong advantage.</li><li>Ability to translate user research and data insights into functional design decisions.</li><li>Outstanding leadership and communication skills, with experience in Agile workflows.</li></ul>Job Type: Full-time

Senior UX Designer

About the RoleWe&rsquo;re looking for a Frontend Developer with deep expertise in React.js and modern JavaScript to help build the front layer of our trading and financial platforms. You&rsquo;ll bring Figma designs to life, implement complex real-time components, and optimize performance for high-frequency trading and blockchain environments.Responsibilities<ul><li>Develop and maintain responsive dashboards, admin portals, and trading UIs using React.js.</li><li>Integrate with backend APIs (REST, WebSocket, gRPC) to render real-time order books and market data.</li><li>Implement state management (Redux/Zustand/Recoil) and ensure robust data flow.</li><li>Optimize rendering and component lifecycle performance for low-latency systems.</li><li>Collaborate with designers to deliver pixel-perfect, accessible UI based on Figma files.</li><li>Ensure cross-browser and mobile compatibility.</li><li>Follow secure coding practices (XSS, CSRF protection, secure auth flows).</li><li>Work with backend engineers to define efficient API contracts.</li><li>Participate in sprint planning, peer reviews, and version control (Git).</li></ul>Additional Dubai Hiring Requirements<ul><li>Minimum 5 years of professional frontend experience, ideally in fintech, blockchain, or data-intensive applications.</li><li>Prior experience working with crypto exchanges, DeFi dashboards, or Web3 integrations (e.g., wallet connections, on-chain data) is preferred.</li><li>Experience deploying and maintaining production systems using CI/CD pipelines.</li><li>Familiarity with Next.js or TypeScript preferred.</li><li>Strong understanding of responsive layouts for RTL localization is a plus.</li></ul>Job Type: Full-time

Frontend Developer

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