Chainalysis, TRM Labs, Elliptic, or others). Chainalysis Reactor, TRM Labs, or equivalent Certification preferred. Demonstrate evidence of cryptocurrency ecosystem knowledge to include an understanding of blockchain and smartcontract technologies, the underlying blockchain architecture, and uses of cryptocurrency and DeFi. Strong understanding of the compliance and regulatory frameworks applicable to financial institutions with an emphasis on FinCEN More ❯
SmartContract Engineer - Ethereum, Solidity London/Remote About Clearmatics Clearmatics is a blockchain protocol engineering company that builds decentralised financial market infrastructures that are more open, efficient, and resilient than those serving legacy market structures of today. We have a bold vision for this new market infrastructure - enabling market participants to solve currently unaddressed problems of the … been a committed advocate of Open Source development and an active participant in blockchain and cryptography research communities. We also support decentralized infrastructure initiatives. We are hiring a SmartContract Engineer to expand our Layer 1 Engineering team. Our stack is Ethereum-like, so familiarity with and passion for this space is essential. Our work includes blockchain infrastructure … heavily involved as the Launch Partner for the Autonity Project, an EVM-based public blockchain for decentralized derivatives clearing. You will develop and maintain decentralized financial smartcontracts on Autonity to enable creation of decentralized risk markets in real-world risk factors. This involves working on smart derivatives, DEX trading & settlement protocols, algorithmic stabilization, data More ❯
London, England, United Kingdom Hybrid / WFH Options
Smart Transactions
About Smart Transactions Smart Transactions ( stxn.io ) was founded by Vlad Zamfir, Ethereum foundation researcher and Ethereum founding architect who engineered the proof of stake transition, with the mission to unlock programmability for transactions on Ethereum. We are the first to enable transaction automation on solidity which will unlock never before possible transaction capabilities across defi, protocols … wallets and smart contracts. We raised our pre-seed round in the summer of 2023 and are launching our MVP in Q2 2024. We are a small team of elite and hungry minds of all genders, ethnicities and backgrounds spanning blockchain, finance, tradfi and defi as well as AI, and social sciences. As we grow and expand our More ❯
Inside IR35 Required Core Skills: 1. Proven experience in blockchain development 2.Strong understanding of Web 3 protocols, decentralized systems, and cryptographic principles. 3.Experience developing and deploying smartcontracts and working with tools like Hardhat, Truffle, or Foundry. 4.Ability to critically assess and challenge third-party technical solutions and architectures. 5.Familiarity with banking systems, financial regulations, and enterprise … 7.Experience with version control (Git) and CICD pipelines. 8.Excellent communication skills and the ability to work in a collaborative, fast-paced environment 9.Experience developing and deploying smartcontracts and working with tools like Hardhat and Truffle. More ❯
Inside IR35 Required Core Skills: 1. Proven experience in blockchain development 2.Strong understanding of Web 3 protocols, decentralized systems, and cryptographic principles. 3.Experience developing and deploying smartcontracts and working with tools like Hardhat, Truffle, or Foundry. 4.Ability to critically assess and challenge third-party technical solutions and architectures. 5.Familiarity with banking systems, financial regulations, and enterprise … 7.Experience with version control (Git) and CICD pipelines. 8.Excellent communication skills and the ability to work in a collaborative, fast-paced environment 9.Experience developing and deploying smartcontracts and working with tools like Hardhat and Truffle. More ❯
years Detailed Job Description: 1. Proven experience in blockchain development 2.Strong understanding of Web 3 protocols, decentralized systems, and cryptographic principles. 3.Experience developing and deploying smartcontracts and working with tools like Hardhat, Truffle, or Foundry. 4.Ability to critically assess and challenge third-party technical solutions and architectures. 5.Familiarity with banking systems, financial regulations, and enterprise-grade … 7.Experience with version control (Git) and CICD pipelines. 8.Excellent communication skills and the ability to work in a collaborative, fast-paced environment 9.Experience developing and deploying smartcontracts and working with tools like Hardhat and Truffle. 5.Familiarity with banking systems, financial regulations, and enterprise-grade security standards More ❯
and Docker. We use AWS Serverless whenever possible. Our backend engineering team develops architectures that are scalable from day 1, with no single points of failure. SmartContracts: Primarily the ERC20 stack but across technologies such as Ethereum, Polygon, chainlink etc. Operations: Our AWS services are fully managed via infrastructure as code. We take cloud security, logging … maintainable, and less prone to errors. As a small team, code quality is a top priority, so we maintain high standards for cleanliness and structure. Code smartcontracts: We have a couple behind us already but you'll be driving the coding of smartcontracts and everything that comes with them. Living in Web3 … contract safe zone. Our ideal candidate can see the bigger picture and architect both front end and back-end systems to accomplish product goals. Experience with smartcontracts, ERC-20, web3 and ethers.js . While you'll primarily work with Node.JS/TypeScript, experience in DevOps is a plus. This role is fully remote (with offices optional More ❯
City of London, London, United Kingdom Hybrid / WFH Options
Ampstek
onsite) Duration: Contract Job Description: 1. Proven experience in blockchain development 2.Strong understanding of Web 3 protocols, decentralized systems, and cryptographic principles. 3.Experience developing and deploying smartcontracts and working with tools like Hardhat, Truffle, or Foundry. 4.Ability to critically assess and challenge third-party technical solutions and architectures. 5.Familiarity with banking systems, financial regulations, and enterprise … 7.Experience with version control (Git) and CICD pipelines. 8.Excellent communication skills and the ability to work in a collaborative, fast-paced environment 9.Experience developing and deploying smartcontracts and working with tools like Hardhat and Truffle. Thanks & Regards, Sreeja IT Recruiter | Europe & UK Email - sreeja.j@ampstek.com Ampstek Services Limited More ❯
onsite) Duration: Contract Job Description: 1. Proven experience in blockchain development 2.Strong understanding of Web 3 protocols, decentralized systems, and cryptographic principles. 3.Experience developing and deploying smartcontracts and working with tools like Hardhat, Truffle, or Foundry. 4.Ability to critically assess and challenge third-party technical solutions and architectures. 5.Familiarity with banking systems, financial regulations, and enterprise … 7.Experience with version control (Git) and CICD pipelines. 8.Excellent communication skills and the ability to work in a collaborative, fast-paced environment 9.Experience developing and deploying smartcontracts and working with tools like Hardhat and Truffle. Thanks & Regards, Sreeja IT Recruiter | Europe & UK Email - sreeja.j@ampstek.com Ampstek Services Limited More ❯
security, helping blockchains, DeFi protocols, asset managers, and exchanges detect and mitigate all types of on-chain risks and threats. Our solutions proactively monitor and analyze smartcontracts, transactions, wallets, and blockchain interactions to prevent financial crime and exploits before they happen. We work with some of the largest players in crypto and DeFi, secure tens of … Help prospects evaluate Hexagate’s capabilities, align solutions with their risk profile, and build proof-of-concepts Design and deploy customized real-time monitoring solutions for smartcontracts, transactions, and blockchain entities Lead technical onboarding and solution deployment, including custom monitor rules, API integrations, and alerting workflows Assist with integrations into customer pipelines and tools Provide ongoing … candidates who have : 3+ years of experience in a technical role such as Solutions Engineer, Security Engineer, Sales Engineer, or Blockchain Analyst Strong knowledge of Web3 security, including smartcontract vulnerabilities, DeFi risks, and blockchain transaction monitoring Hands-on programming experience and APIs for data integrations and monitoring configurations Ability to read Solidity and analyze smartMore ❯
partner solutions for DLT implementation; perform risk assessments. Architecture & Standards: Develop and maintain architectural standards, security models, and integration blueprints for blockchain systems. Development & Integration: Deliver hands-on smartcontract development and integration with enterprise systems; collaborate closely with vendors and act as an individual contributor where needed. Thought Leadership: Represent Fidelity in industry forums, publish white papers … 7+ years in enterprise IT or software engineering, including 3+ years with blockchain/DLT. Proficient in Ethereum, Hyperledger, or comparable platforms. Hands-on experience developing smartcontracts (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 cases. Strong More ❯
Detailed Job Description: 1. Proven experience in blockchain development 2.Strong understanding of Web 3 protocols, decentralized systems, and cryptographic principles. 3.Experience developing and deploying smartcontracts and working with tools like Hardhat, Truffle, or Foundry. 4.Ability to critically assess and challenge third-party technical solutions and architectures. 5.Familiarity with banking systems, financial regulations, and enterprise-grade security … 7.Experience with version control (Git) and CICD pipelines. 8.Excellent communication skills and the ability to work in a collaborative, fast-paced environment 9.Experience developing and deploying smartcontracts and working with tools like Hardhat and Truffle. 5.Familiarity with banking systems, financial regulations, and enterprise-grade security standards 5.Familiarity with banking systems, financial regulations, and enterprisegrade security standards More ❯
Detailed Job Description: 1. Proven experience in blockchain development 2.Strong understanding of Web 3 protocols, decentralized systems, and cryptographic principles. 3.Experience developing and deploying smartcontracts and working with tools like Hardhat, Truffle, or Foundry. 4.Ability to critically assess and challenge third-party technical solutions and architectures. 5.Familiarity with banking systems, financial regulations, and enterprise-grade security … 7.Experience with version control (Git) and CICD pipelines. 8.Excellent communication skills and the ability to work in a collaborative, fast-paced environment 9.Experience developing and deploying smartcontracts and working with tools like Hardhat and Truffle. 5.Familiarity with banking systems, financial regulations, and enterprise-grade security standards 5.Familiarity with banking systems, financial regulations, and enterprisegrade security standards More ❯
London, England, United Kingdom Hybrid / WFH Options
Chainlink Labs
industry, ideally involving blockchain or financial technology platforms. Strong understanding of blockchain technology and its applications within banking and capital markets, including familiarity with decentralized ledgers, smartcontracts, and digital asset platforms. Demonstrated experience with project management methodologies such as Agile, Scrum, or Waterfall, with the ability to tailor these approaches to meet the needs of diverse More ❯
knowledge in API security would be a plus), unit tests, and using a test-driven development approach and associated testing tools. Familiar with the SDLC process. Experience in smartcontract programming to develop commercial solutions (e.g., EVM, DAML), on private and public blockchains would be a plus. Experience with tokenized financial asset implementation for Debt Securities, Equities, Loans More ❯
London, England, United Kingdom Hybrid / WFH Options
Input Output (IOHK)
CD tools (GitHub Actions etc) Performance and security testing experience would be a plus Solid understanding of blockchain technology, including distributed ledger concepts, consensus algorithms, and smartcontracts (a plus) Experience with TypeScript and JavaScript is advantageous Demonstrated understanding of blockchain technology, including consensus algorithms and smartcontracts (desirable) Proven experience in managing and More ❯
and recover quickly. Make sure we respect any software security norms (Kiln is a SOC 2 Type 1 and Type 2 company). Continuously support our Software/SmartContract team to ship code of quality. Actively suggest continuous improvement of Kiln's architecture. Assess any protocol deployment risks. Communicate with our Product & Sales team to make sure … that may occur during protocol deployment. 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 a Senior More ❯
London, England, United Kingdom Hybrid / WFH Options
GenLayer Labs
We are operating at the intersection of blockchain technology and AI to build GenLayer, a groundbreaking blockchain that integrates AI in its consensus algorithm to create smartcontracts that are intelligent and capable of connecting to the internet. With GenLayer, developers can build decentralized applications that leverage the power of AI to automate complex processes, make smartMore ❯
cyber forensics, finance, economics, mathematics, engineering, or a related field. Experience with blockchain analytics tools (Chainalysis, TRM Labs, Elliptic, etc.); certification preferred. Strong understanding of blockchain, smartcontracts, DeFi, and crypto ecosystems. Knowledge of financial regulations (FinCEN, FFIEC, AML guidelines). Strong analytical, investigative, and organizational skills. Advanced proficiency in Excel and Office Suite. Experience with data More ❯
engineering teams, with a track record of successfully delivering complex technical projects. Hands-on experience with blockchain technologies, with at least deep knowledge in Ethereum, Bitcoin, smartcontracts, and decentralized finance (DeFi) applications, and the broader industry landscape. Strong problem-solving skills, thinking strategically and translating business needs into technical solutions. Thrive in a fast-paced, rapidly More ❯
Social network you want to login/join with: Senior Blockchain Engineer – SmartContracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of … a new digital platform. The successful candidate will be tasked with building secure, scalable smartcontracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: 5+ years of backend/blockchain development (including 2+ years on live smartcontract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. … such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smartcontracts, protocol integrations, and backend engineering within a regulated environment, creating products that are reshaping the future of investing. *please note that candidates must be based in the UK #J More ❯
Social network you want to login/join with: Senior Blockchain Engineer – SmartContracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of … a new digital platform. The successful candidate will be tasked with building secure, scalable smartcontracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: 5+ years of backend/blockchain development (including 2+ years on live smartcontract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. … such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smartcontracts, protocol integrations, and backend engineering within a regulated environment, creating products that are reshaping the future of investing. *please note that candidates must be based in the UK #J More ❯
Social network you want to login/join with: Senior Blockchain Engineer – SmartContracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of … a new digital platform. The successful candidate will be tasked with building secure, scalable smartcontracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: 5+ years of backend/blockchain development (including 2+ years on live smartcontract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. … such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smartcontracts, protocol integrations, and backend engineering within a regulated environment, creating products that are reshaping the future of investing. *please note that candidates must be based in the UK #J More ❯
Social network you want to login/join with: Senior Blockchain Engineer – SmartContracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of … a new digital platform. The successful candidate will be tasked with building secure, scalable smartcontracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: 5+ years of backend/blockchain development (including 2+ years on live smartcontract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. … such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smartcontracts, protocol integrations, and backend engineering within a regulated environment, creating products that are reshaping the future of investing. *please note that candidates must be based in the UK #J More ❯
Social network you want to login/join with: Senior Blockchain Engineer – SmartContracts, Web3, APIs, Node.js, Go, Rust, Solidity, DeFi – Global Investments – Remote – up to £850 outside IR35 We are working with a growing Global Investment organisation, who are seeking a Senior Blockchain Developer to join their team on a contract basis, supporting the build of … a new digital platform. The successful candidate will be tasked with building secure, scalable smartcontracts and backend systems powering tokenized assets and multi-chain infrastructure. Required skills: 5+ years of backend/blockchain development (including 2+ years on live smartcontract deployments) Deep understanding of EVM architecture, blockchain consensus, gas mechanics, and DeFi primitives. … such as Hardhat, Ethers.js, Web3.js, or Foundry. Experience integrating blockchain features into real-world financial or investment products. This is an exciting opportunity to work across smartcontracts, protocol integrations, and backend engineering within a regulated environment, creating products that are reshaping the future of investing. *please note that candidates must be based in the UK #J More ❯