24 of 24 Solidity Jobs in London

Senior Lead Software Engineer- Back End- Madrid

Location
Greater London, England, United Kingdom
equivalents), and the distinction between custodial and non-custodial models. Experience with smart contracts and/or reading on-chain data (e.g., Solidity, web3 libraries, node providers such as Infura/Alchemy, or running your own nodes). Familiarity with how connectivity with blockchain networks and nodes work (e.g., Bitcoin ...

Digital Assets Platform Engineering Team Lead - SVP

Location
Greater London, England, United Kingdom
asynchronous programming paradigms and 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 ...

Senior Software Engineer, Chainlink Runtime

Hiring Organisation
Chainlink Labs
Location
London, UK
Employment Type
Full-time
communication skills within cross-functional engineering environments. Preferred SkillsExperience defining, measuring, and improving service reliability through SLOs and SLIs. Experience developing software using TypeScript, Solidity, or additional backend technologies. Strong interest in blockchain infrastructure and Web3 technologies. Experience building decentralized applications (dApps).Experience developing financial infrastructure, banking systems, or other ...

Blockchain Developer (remote)

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
above from a reputable school, more than 5 years of experience in technology development, and more than 1-year relevant industry experienceProficient in Solidity smart contract development, with experience in Dapp/Defi development; some experience in contract securityProficiency in Golang/GoUnderstand how Compound, dYdX, Kyber, 0x, makerdao worksFamiliar ...

Blockchain Developer

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
above from a reputable school, more than 5 years of experience in technology development, and more than 1-year relevant industry experienceProficient in Solidity smart contract development, with experience in Dapp/Defi development; some experience in contract securityProficiency in at least one programming language such as C++, Java, Node.js ...

backend developer for blockchain infrastructure

Location
Greater London, England, United Kingdom
hands‐on experience with Ethereum nodes, validator or staking infrastructure, understanding of proof‐of‐stake mechanisms, experience building blockchain indexers, data pipelines, dApps, or Solidity smart contracts, familiarity with AI-assisted development workflows, open‐source contributions, Rust experience Условия: Competitive base salary and discretionary bonus Hybrid/flexible working arrangements ...

Blockchain Developer & Specialist in Ethereum

Location
Greater London, England, United Kingdom
blockchain development. Research emerging trends and technologies within the Ethereum ecosystem to drive innovation. Technical Skills: Proficiency in Ethereum blockchain development, particularly in Solidity and smart contract programming. Strong understanding of Ethereum Virtual Machine (EVM) and gas optimization techniques. Experience with decentralized finance (DeFi) protocols and decentralized exchanges (DEXs). ...

VP, Senior Backend Developer - Blockchain Infrastructure

Location
Greater London, England, United Kingdom
consensus clients) or validator and staking infrastructure. Understanding of proof-of-stake mechanisms. Experience building blockchain indexers, data pipelines, dApps, or smart contracts (Solidity). Familiarity with AI-assisted development workflows: spec-driven development, code generation tools, MCP, or agent-based paradigms. Contributions to open-source projects. Experience with Rust. ...

Blockchain & Smart Contract Security , Vice President

Hiring Organisation
State Street Bank
Location
London, UK
Employment Type
Full-time
applications Strong knowledge of common vulnerabilities and their mitigations in blockchain and smart contracts platforms Beneficial to have secure programming experience in Python and Solidity but not required. At least one - Professional certifications such as Certified Information Systems Security Professional (CISSP), Certified Ethical Hacker (CEH), Certified Blockchain Security Professional (CBSP ...

Blockchain & Smart Contract Security , Vice President

Location
Greater London, England, United Kingdom
applications Strong knowledge of common vulnerabilities and their mitigations in blockchain and smart contracts platforms Beneficial to have secure programming experience in Python and Solidity but not required. At least one - Professional certifications such as Certified Information Systems Security Professional (CISSP), Certified Ethical Hacker (CEH), Certified Blockchain Security Professional (CBSP ...

Senior Blockchain Engineer - Digital Assets Platform

Location
Greater London, England, United Kingdom
with web3 libraries like Web3J and Web3JS is a plus Familiarity with common and best practices for web3 applications is a plus Familiarity of Solidity code and best practices is a plus Familiarity of basics of DevOps and containerize applications is a plus Familiarity of Agile Methodology and Scrum ...

Blockchain / DLT Developer

Hiring Organisation
Delta Capita
Location
London, UK
Employment Type
Full-time
Developer, you will have: Experience working specifically with security tokens on distributed ledgers. Proven hands-on experience developing and deploying smart contracts on Ethereum (Solidity) and familiarity with at least one of Hedera (Solidity/Hedera Token Service) or Algorand (PyTEAL/TEAL/ARC standards).Strong understanding of blockchain ...

Remote Ethereum Blockchain Engineer & DApp Specialist

Location
Greater London, England, United Kingdom
with Ethereum expertise. You will design and implement robust blockchain solutions, including tokenized platforms, DeFi integrations, and enterprise blockchain projects. Ideal candidate has strong Solidity skills, EVM knowledge, and experience with DeFi protocols, Layer-2s, and Web3 tooling, in a remote-capable, collaborative environment. #J-18808-Ljbffr ...

Lead Web3 Backend Engineer - Digital Assets Platform

Location
Greater London, England, United Kingdom
Platform. You will back enterprise-grade web applications, integrate with blockchain networks, and drive backend services using Java and Web3 libraries. Strong knowledge of Solidity and smart contracts is a plus. You will work in a hybrid setup, collaborating with architects, product teams, and other engineers to deliver secure, scalable ...

Full Stack Blockchain Developer

Location
Greater London, England, United Kingdom
Slough. This will be an on-going permanent basis employment for deserving candidate. Required Skills and Experience A first experience with Hedera Hashgraph, Ethereum (Solidity) and Hyperledger framework would be very appreciated A first experience using Mobile technologies in Android/iOS environment, Big Data technologies such as Cassandra/ ...

Blockchain Software Developer - Digital Assets Platform

Location
Greater London, England, United Kingdom
that interface with public and permissioned blockchain networks (e.g., Ethereum, Hyperledger Besu, Canton, Solana, or equivalent) Develop, test, and audit smart contracts written in Solidity or equivalent languages, ensuring security, correctness, and gas efficiency Integrate Web3 libraries and SDKs (e.g., Web3J, Web3JS, Ethers.js, Viem) into enterprise Java and/… including smart contract development and blockchain protocol integration Solid experience with backend development using Java/Spring, Node.js, or equivalent enterprise frameworks Proficiency in Solidity smart contract development, including testing frameworks (Hardhat, Foundry, Truffle) and security best practices Hands-on experience with Web3 libraries such as Web3J, Web3JS, Ethers.js ...

Python Developer Blockchain / IOT

Hiring Organisation
Quant Capital
Location
London, UK
Employment Type
Full-time
consensus mechanisms in Blockchain such as Proof of Work. Hands-on experience with Ethereum Geth and/or Parity Experience in using various Solidity frameworks like Truffle, Mix IDE or Intellij-Sol. Contributions to relevant open source projects; Experience Hadoop, Spark, or Docker. Basic or deep knowledge of Ethereum Whisper ...

Senior Consultant, Digital Assets, Technology

Location
Greater London, England, United Kingdom
interest or a passion for learning about blockchain technology and the digital asset industry is welcome.* Programming skills are a plus: Python, R, SQL, Solidity, Go, Rust.* Outstanding at written and speaking skills; must be able to create status reports, write official reports, forensic reports, and demonstrate an ability ...

Senior Consultant, Digital Assets, Technology

Location
Greater London, England, United Kingdom
interest or a passion for learning about blockchain technology and the digital asset industry is welcome. Programming skills are a plus: Python, R, SQL, Solidity, Go, Rust. Outstanding at written and speaking skills; must be able to create status reports, write official reports, forensic reports, and demonstrate an ability ...

Technical Solution Architect

Hiring Organisation
Fruition Group
Location
London, United Kingdom
Employment Type
Permanent
settlement models and post-trade infrastructure Operate within relevant compliance frameworks (e.g. data and securities regulation) Engineering & Delivery Write production-quality code (Java, JavaScript, Solidity, SQL) Review code and help set engineering best practice Improve CI/CD pipelines, testing strategy, and observability Communication & Influence Explain complex technical ideas clearly … blockchain platforms Familiarity with tokenisation and digital asset concepts Strong API design skills (REST, event-driven architecture, etc.) Working knowledge of Java, JavaScript, Solidity, and SQL Financial Services Knowledge Understanding of post-trade processes Familiarity with securities depositories, DvP/RvP models, and atomic settlement An appreciation of the regulatory ...

Technical & Solution Architect (Distributed Ledger / Regulated Financial Services)

Hiring Organisation
Delta Capita
Location
London, UK
Employment Type
Full-time
settlement models and post-trade infrastructureo Work within business frameworks such as CSDR and GDPR.Engineering & Implementation:o Contribute production-quality code in Java, JavaScript, Solidity, SQLo Review code and guide best practiceso Improve CI/CD, testing strategies, and observabilityCommunication & Influenceo Communicate complex technical concepts clearly to engineers, product management … blockchain platformso Familiarity with tokenisation and digital asset conceptso Strong API design experience (REST, event-driven architectures, etc.)o Working knowledge of: Java; JavaScript; Solidity; SQLFinancial Services Knowledge (or strong motivation to learn):o Understanding of post-trade processeso Familiarity with: CSDR; Central securities depositories; DvP and RvP models; Atomic ...

Lead Web3 Engineer - Digital Assets Platform

Location
Greater London, England, United Kingdom
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 consumers and business … with web3 libraries like Web3J and Web3JS is a plus* Familiarity with common and best practices for web3 applications is a plus* Familiarity of Solidity code and best practices is a plus* Familiarity of basics of DevOps and containerize applications is a plus* Familiarity of Agile Methodology and Scrum ...

Lead Web3 Engineer - Digital Assets Platform

Location
Greater London, England, United Kingdom
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 consumers and business … with web3 libraries like Web3J and Web3JS is a plus Familiarity with common and best practices for web3 applications is a plus Familiarity of Solidity code and best practices is a plus Familiarity of basics of DevOps and containerize applications is a plus Familiarity of Agile Methodology and Scrum ...

Lead Web3 Engineer - Digital Assets Platform

Hiring Organisation
Citigroup
Location
London, UK
Employment Type
Full-time
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 and business applicationsImplement … performanceFamiliarity with web3 libraries like Web3J and Web3JS is a plusFamiliarity with common and best practices for web3 applications is a plusFamiliarity of Solidity code and best practices is a plusFamiliarity of basics of DevOps and containerize applications is a plusFamiliarity of Agile Methodology and Scrum is a plusCompetencies/ ...

Quantitive Developer

Location
Greater London, England, United Kingdom
order routing, market data, risk, margin, liquidation, clearing, and derivatives trading. Develop and integrate on-chain infrastructure, including on-chain clearing and settlement, using Solidity, EVM-compatible chains, and Layer 2 systems. Work closely with traders to translate real trading workflows and market structure needs into exchange features. Improve performance … exchange, trading platform, market maker, or similar financial infrastructure. Familiar with clearing and settlement workflows, particularly on-chain clearing for exchange systems. Familiar with Solidity, EVM architecture, smart contracts, Layer 2s, and blockchain engineering. Passionate about trading and able to think from a trader's perspective when designing systems. Minimum ...