19 of 19 Remote/Hybrid Smart Contracts Jobs in London

Blockchain Security Architect, you will:Perform security architecture reviews for blockchain, distributed ledger, tokenization, and digital asset initiatives.Assess blockchain platforms, smart contracts, decentralized applications, and supporting infrastructure for security risks and design weaknesses.Partner with engineering, cloud, application, and cybersecurity teams to develop secure blockchain architecture patterns … security controls.Conduct threat modeling and security assessments for blockchain platforms, smart contracts, digital asset custody solutions, and supporting services.Define security requirements for cryptographic key management, wallet security, node security, consensus mechanisms, and cross-chain integrations.Evaluate third-party blockchain platforms, vendors, and service providers from a security ...

design, development, and deployment of Web3-native components and integrations that power Citi's digital asset infrastructure — spanning tokenization, smart contracts, on-chain settlement, and blockchain protocol integrations. You will work within a collaborative, globally distributed team of engineers, architects, and business technologists who are building … patterns with enterprise-grade software standards.Key ResponsibilitiesDesign, develop, and deploy Web3 components and integrations for Citi's Digital Asset Platform, including smart contracts, on-chain event listeners, wallet integrations, and blockchain protocol connectorsBuild and maintain backend services that interface with public and permissioned blockchain networks (e.g., Ethereum ...

design, development, and deployment of **Web3-native** components and integrations that power Citi's digital asset infrastructure — spanning tokenization, smart contracts, on-chain settlement, and blockchain protocol integrations. You will work within a collaborative, globally distributed team of engineers, architects, and business technologists who are building … enterprise-grade software standards.**Key Responsibilities*** **Design, develop, and deploy** Web3 components and integrations for Citi's Digital Asset Platform, including smart contracts, on-chain event listeners, wallet integrations, and blockchain protocol connectors* **Build and maintain** backend services that interface with public and permissioned blockchain networks (e.g. ...

engineers, product managers and client stakeholders to deliver secure, scalable and high-performance decentralised applications. Key Responsibilities Design, develop and deploy smart contracts and decentralised applications across Ethereum, Hedera, Algorand and proprietary blockchain infrastructure. Develop blockchain solutions tailored to financial services and capital markets clients. Contribute … support delivery. About You Hands-on experience working with security tokens on distributed ledgers. Proven experience developing and deploying Ethereum smart contracts using Solidity . Experience with Hedera (Solidity/Hedera Token Service) or Algorand (PyTEAL/TEAL/ARC standards). Strong understanding of blockchain fundamentals ...

including node connectivity, transaction submission, on-chain event monitoring, and wallet interactions — using enterprise Java and Web3 librariesWrite, test, and deploy smart contracts in Solidity or equivalent languages, following established security and quality standardsBuild and maintain APIs and microservices that expose blockchain functionality to upstream platform consumers … Methodology and Scrum is a plusCompetencies/SkillsBlockchain Development Proficiency: Practical, hands-on ability to develop software that interacts with blockchain networks — from smart contract deployment to on-chain/off-chain data integrationStrong Software Engineering Fundamentals: Solid command of data structures, algorithms, design patterns, and software development ...

node connectivity, transaction submission, on‐chain event monitoring, and wallet interactions — using enterprise Java and Web3 libraries Write, test, and deploy smart contracts in Solidity or equivalent languages, following established security and quality standards Build and maintain APIs and microservices that expose blockchain functionality to upstream platform … Scrum is a plus Competencies/Skills Blockchain Development Proficiency: Practical, hands‐on ability to develop software that interacts with blockchain networks — from smart contract deployment to on‐chain/off‐chain data integration Strong Software Engineering Fundamentals: Solid command of data structures, algorithms, design patterns, and software ...

node connectivity, transaction submission, on-chain event monitoring, and wallet interactions — using enterprise Java and Web3 libraries* **Write, test, and deploy smart contracts** in Solidity or equivalent languages, following established security and quality standards* **Build and maintain APIs and microservices** that expose blockchain functionality to upstream platform … Scrum is a plus**Competencies/Skills*** **Blockchain Development Proficiency:** Practical, hands-on ability to develop software that interacts with blockchain networks — from smart contract deployment to on-chain/off-chain data integration* **Strong Software Engineering Fundamentals:** Solid command of data structures, algorithms, design patterns, and software ...

Define and evolve system architecture, APIs, and integration patterns Apply sound software design patterns and architectural principles Contribute to decisions on ledger and smart contract design … Build in auditability, resilience, and operational robustness from the outset Distributed Ledger & Digital Assets Work directly with distributed ledger technology and smart contracts Help design models covering tokenised and natively digital assets Work on atomic settlement, and DvP/RvP settlement mechanisms Explore integration concepts for central ...

digital asset service operating in over 100 countriesDay to day the Blockchain Developer will:Responsible for research, design, development and application of smart contract related technologiesAnalyze current DeFi ecological projects and protocols, including but not limited to decentralized payment, trading, lending, derivatives trading, etc.Develop and connect related decentralized … securityProficiency in Golang/GoUnderstand how Compound, dYdX, Kyber, 0x, makerdao worksFamiliar with encryption algorithms, consensus mechanisms, security protocols, distributed computing, smart contracts and other underlying protocols and operating mechanisms are preferredThe environment is that of Facebook or Google, relaxed open with time to think and make ...

digital asset service operating in over 100 countriesDay to day the Blockchain Developer will:Responsible for research, design, development and application of smart contract related technologiesAnalyze current DeFi ecological projects and protocols, including but not limited to decentralized payment, trading, lending, derivatives trading, etc.Develop and connect related decentralized … C++, Java, Node.js, Go, PythonUnderstand how Compound, dYdX, Kyber, 0x, makerdao worksFamiliar with encryption algorithms, consensus mechanisms, security protocols, distributed computing, smart contracts and other underlying protocols and operating mechanisms are preferredThe environment is that of Facebook or Google, relaxed open with time to think and make ...

with remote or globally distributed teams Strong understanding of tokenization platforms and core infrastructure services, including blockchain fundamentals, digital asset lifecycle, smart contracts, wallet and custody solutions, identity and access management, system integrations. Benefits We believe a happy, motivated, and healthy team is the best ...

Blockchain Developer will: • Building a Crypto Trading Platform for new exchanges. • Responsible for research, design, development and application of smart contract related technologies • Recruitment and Development of a larger team. • Analyze current DeFi ecological projects and protocols, including but not limited to decentralized payment, trading, lending, derivatives trading … trading financial services • Understand how Compound, dYdX, Kyber, 0x, makerdao works • Familiar with encryption algorithms, consensus mechanisms, security protocols, distributed computing, smart contracts and other underlying protocols and operating mechanisms are preferred The environment is that of Facebook or Google, relaxed open with time to think ...

core Compliance function at a Tier-1 Bank or Broker-Dealer is highly desirable. Technical understanding of blockchain technology, tokenization, smart contracts, and on-chain mechanics, alongside experience in the Digital Assets industry is desirable. Familiarity with relevant regulatory frameworks, including but not limited ...

ensuring that the tools and processes our traders use are resilient against both external threats and internal errors. This role does not require smart-contract auditing.WHAT YOU WILL DOPartner with Trading, Middle Office and Quant (Institutional FinOps) teams to map out inventory trading systems, data flows, third-party ...

source contributions to security tooling.Advanced credentials such as OSCP, OSWE, CISSP or equivalent.Experience with on-chain/off-chain integration, payment reconciliation, or smart contract security.Familiarity with vulnerability management platforms (DefectDojo, Dependabot orchestration) and GRC/Gateway integrations.Prior contributions to security automation and developer tooling (open source ...

programming paradigms and event-driven architecture patternsWorking knowledge of Web3 libraries (Web3J, Web3JS) and their application in enterprise contextsDemonstrated familiarity with Solidity and smart contract development best practicesSolid understanding of DevOps principles, containerized application deployment (Docker, Kubernetes, Helm Charts), and CI/CD pipeline managementPractitioner-level command … Citi Integrated Digital Assets Platform engineering team, you will have to opportunity to work with a team of highly motivated, T-shaped, smart individuals who think out of the box and look for disruptive opportunities for commercial benefit.Exposure to newly released and upcoming technologies and the ability ...

event-driven architecture patterns Working knowledge of Web3 libraries (Web3J, Web3JS) and their application in enterprise contexts Demonstrated familiarity with Solidity and smart contract development best practices Solid understanding of DevOps principles, containerized application deployment (Docker, Kubernetes, Helm Charts), and CI/CD pipeline management Practitioner-level command … Citi Integrated Digital Assets Platform engineering team, you will have to opportunity to work with a team of highly motivated, T‐shaped, smart individuals who think out of the box and look for disruptive opportunities for commercial benefit. Exposure to newly released and upcoming technologies and the ability ...

Engineer to join the Digital Assets Platform. You will develop backend components linked to blockchain networks, implement wallet interactions, and deploy smart contracts in a fast-paced, enterprise environment. You will collaborate with senior engineers, participate in code reviews, and contribute to API and documentation efforts while ...

MastarRec is seeking an experienced Blockchain Specialist to design, develop, and implement blockchain-based solutions including smart contracts, tokens, and DeFi integrations. You will work on Ethereal and other compatible blockchains, focusing on security and scalability. The role involves building dApps, wallets, and token exchanges, with strong ...