exchanges, payment service, APIs experience. Interest in the cryptocurrency, decentralized finance(Defi) space. Understanding of exchange, crypto payment, decentralized finance, NFTs, etc. Experience with Solidity or Rust WHO WE ARE: Do Your Best Work The opportunity to build in a fast-paced start-up environment with experienced industry leaders A … the cryptocurrency, decentralized finance(Defi) space. Understanding of exchange, crypto payment, decentralized finance, NFTs, etc. Experience with React or other javascript frameworks Experience with Solidity or Rust WHO WE ARE: Do Your Best Work The opportunity to build in a fast-paced start-up environment with experienced industry leaders A More ❯
London, England, United Kingdom Hybrid / WFH Options
Trili
product managers, designers, and business teams Passion for blockchain technology and interest in contributing to the Etherlink blockchain ecosystem Nice to Have Experience with Solidity or other smart contract languages Familiarity with Layer 2 scaling solutions Experience with blockchain testing frameworks and security best practices Previous work on cross-chain More ❯
mechanics, market-data feed architectures, and risk-control frameworks. Experience developing and deploying Solana Smart Contracts with Achor. Experience developing EVM Smart Contracts using Solidity and popular toolchains (Foundry or Hardhat). Familiarity with cloud platforms (AWS, GCP) and infrastructure-as-code. #J-18808-Ljbffr More ❯
London, England, United Kingdom Hybrid / WFH Options
Kiln
Communicate with other Kiln teams to help them understand the Software roadmap and technical challenges. Stack: Software: Go, TypeScript, PostgreSQL, REST API... Smart-contract: Solidity, Foundry Infrastructure: GCP, AWS, Kubernetes 100+ Go services processing data for 15+ blockchains 200Gb of raw data processed every day 2Tb of staking data available More ❯
the Web3 space Experience developing DeFi trading tools or frameworks Proficiency with Python scientific computing stack (NumPy, Pandas, Jupyter) Smart contract programming experience in Solidity Programming experience in a systems language like Go, Rust, or C++ Our compensation is blockchain competitive and dependent on your skills and experience. APPLICATION INSTRUCTIONS More ❯
or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Fidelity International
or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use More ❯
South East London, England, United Kingdom Hybrid / WFH Options
Fidelity International
or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use More ❯
london, south east england, united kingdom Hybrid / WFH Options
Fidelity International
or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use More ❯
london (city of london), south east england, united kingdom Hybrid / WFH Options
Fidelity International
or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use More ❯
Stack: Infrastructure: AWS/GCP + baremetal, Kubernetes, Terraform/Terragrunt, Prometheus/Thanos, Helm, Hashicorp Vault, FluxCD Software: Golang, Typescript, PostgreSQL Smart-Contract: Solidity, Foundry, OpenZeppelin Requirements: +5 years of background experience in Software or Infrastructure , within a high standard. engineering environment - preferably FinTech or Crypto. Proven experience as More ❯
or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smart contracts (e.g., Solidity) and integrating blockchain with enterprise systems. Familiarity with financial services, particularly in asset management and fund distribution. Proven ability to design or evaluate tokenization use More ❯
of progressive experience developing software applications is required. Proficiency in programming languages like Python and/or C++. Experience with smart contract development in Solidity or Rust is a plus. Familiarity with Web3, DeFi protocols, EVM, DAOs, and NFTs is a plus. Excellent attention to detail and accuracy and a More ❯
+5 years of software engineering experience in backend teams using primarily Node.js and TypeScript for rapid development and deployment. Blockchain development and deployment using Solidity/Rust and Bitcoin experience with proven live audited code and contracts Natural ability to write clean and elegant code, whilst being diligent and pragmatic More ❯
London, England, United Kingdom Hybrid / WFH Options
OptiRoi Media
quants to generate revenue, and be part of one of the most competitive trading desks. WHAT YOU WILL DO Develop code (in Rust/Solidity/Python) to automate DeFi trading strategies. Work closely with traders/quants on our Institutional Trading team. Implement best practice code to automate strategies More ❯
London, England, United Kingdom Hybrid / WFH Options
Blockchain.com
quants to generate revenue, and be part of one of the most competitive trading desks. WHAT YOU WILL DO Develop code (in Rust/Solidity/Python) to automate DeFi trading strategies. Work closely with traders and quants on our Institutional Trading team. Implement best practice code to automate strategies More ❯
learning through tech talks, conferences, and personal development time. What you’ll be working with: Backend: Distributed, event-driven Java 21 (80%), MySQL, Kafka, Solidity (EVM Smart Contracts), Rust (Solana Smart Contracts) Testing: JUnit, Hardhat, Jenkins, Selenium, in-house tools The LMAX way is to use the right tool for More ❯
for your personal development. What you’ll be working with: Backend: Distributed, event-driven core Java 21 (80% of the code-base), MySQL, Kafka, Solidity (EVM Smart Contracts), Rust (Solana Smart Contracts) Testing: JUnit, Hardhat, Jenkins, Selenium, many in-house tools... The LMAX way is to use the right tool More ❯
London, England, United Kingdom Hybrid / WFH Options
P2P
Communicate with other Kiln teams to help them understand the Software roadmap and technical challenges. Stack: Software: Go, TypeScript, PostgreSQL, REST API... Smart-contract: Solidity, Foundry Infrastructure: AWS, Kubernetes Requirements: +3 years of experience as Software Engineer (Backend) , designing, building, and deploying user-facing, infrastructure-related, and/or API More ❯
London, England, United Kingdom Hybrid / WFH Options
Bitfinex
/JavaScript skills Familiar with microservices architecture and REST APIs Ability to quickly learn new technologies Advanced understanding of security practices Other Valuable Skills: Solidity, Rust or Golang skills are a plus Other technologies of interest: Message queues (Redis), Caches and Job Queues What We Offer: Flexible Work & Remote-Friendly More ❯
London, England, United Kingdom Hybrid / WFH Options
Solas IT Recruitment
Agile teams, contributing to coding, testing, and peer reviews Stay ahead of industry trends and mentor team members Qualifications: 10+ years of development experience (Solidity, Node.js, React, etc.) Strong database and version control expertise (Git, PostgreSQL) Agile team player with project management skills Bonus: Go, Rust, Swift, or Unity experience More ❯
London, England, United Kingdom Hybrid / WFH Options
NEAR
quants to generate revenue, and be part of one of the most competitive trading desks. WHAT YOU WILL DO Develop code (in Rust/Solidity/Python) to automate DeFi trading strategies. Work closely with traders/quants on our Institutional Trading team. Implement best practice code to automate strategies More ❯
years of experience building scalable solutions on top of AWS or GCP infrastructure. Experience with web3.js or ethers.js, and developing DeFi applications. Familiarity with Solidity development and a passion for DeFi and Web3. Exceptional strategic thinking and creative problem-solving skills with a strong analytical mindset. A deep understanding of More ❯
London, England, United Kingdom Hybrid / WFH Options
Harrington Starr
to CTO Wide salary range depending on experience – Up to £170,000 What you will do Build and test smart contracts like Ethereum and Solidity Contribute to a global development and testing teams. Work with various blockchain technologies Work within an Agile environment. What you will need Excellent knowledge of More ❯
London, England, United Kingdom Hybrid / WFH Options
TEC Partners - Technical Recruitment Specialists
chain MRV (Measurement, Reporting & Verification) data. Delivering end-to-end functionality alongside comprehensive, audit-ready documentation. The ideal candidate will have solid experience with Solidity, Hyperledger Besu, and Web3 tooling, as well as a good understanding of carbon markets or environmental data systems. This contract offers the chance to work More ❯