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Lead the design and implementation of privacy-preserving DeFi primitives and audited smart-contract libraries for the Canton Network using Daml, while collaborating with auditors and clients to ship secure, production-grade protocols.
Build and maintain automated test suites for AI/ML models and backend services, integrating evaluation frameworks into CI/CD pipelines to ensure quality and responsible AI practices.
Builds and maintains automated test suites for backend services and APIs using Python, Behave, and CI/CD pipelines, ensuring quality for a fintech platform.
Salary: $70,000 – $100,000 per month About the role We are seeking a highly skilled and system-minded Senior Backend Engineer to join our high-frequency core engineering team. In this role, you will be architecting…
Hands-on Senior Security Engineer owning the security of a Solana-based decentralized exchange's cloud, production, CI/CD and backend systems on GCP and Kubernetes — building monitoring/alerting, leading incident response, and directly contributing backend and DevOps fixes. Must be based in Singapore or Kuala Lumpur; smart-contract auditing is handled elsewhere.
Senior full-stack and Web3 developer in Rome who builds all the code for a fintech banking project: stablecoin wallet apps (React Native/Flutter/TypeScript), Solidity smart contracts (Foundry/Hardhat), and Node.js/Go APIs bridging bank cash-management systems to a proprietary EVM Layer 1, on PostgreSQL/Linux with AWS CloudHSM/KMS key security.
You will own the new-business sales cycle from outbound prospecting through closing. You will build and manage your pipeline, run discovery calls, demos, and negotiations, pursue opportunities, hand off closed…
12-month contract (Inside IR35) hiring 3 VP-level full stack engineers, fully onsite in London: roughly 70% Angular/TypeScript front-end work combined with ~30% Java server-side or Solidity smart-contract development on Ethereum/blockchain.
12-month contract (Inside IR35) for VP-level engineers working 5 days onsite in London, split roughly 70% Angular front-end development and 30% Java server-side or Solidity smart-contract work on Ethereum/blockchain/DeFi systems. Full-stack role requiring coverage of at least two of the three skill areas, with front-end the top priority.
Contract Senior/Principal Java Developer in London (hybrid) building high-scale, business-critical server-side systems at the intersection of financial services and digital assets. Core stack is Java on Linux with strong distributed-systems focus; blockchain experience (EVM, Canton, Solana) is a big plus.
Senior engineers at Bitfia (maker of the iPint platform) own backend services, APIs and payment infrastructure — including stablecoin/blockchain payment rails — while contributing to frontend and using AI-native dev tools. Stack: Python/Go/Node, React/Angular/Vue, PostgreSQL/MongoDB/Redis, AWS/GCP/Azure, Docker/K8s, Solidity/EVM.
Contract (1+ year) full-stack developer role placing a contractor with Ontario's Government Services Integration Cluster in Toronto. Day-to-day work involves designing and building large-scale public-sector web applications: Java backend with Oracle/SQL databases, React/TypeScript front ends, REST APIs, data pipelines, and Azure DevOps CI/CD.
VISEO Group is hiring a Senior Backend Engineer to design, build, and maintain enterprise-grade blockchain applications in the Philippines. Day to day, they work with Java and TypeScript, develop APIs, and integrate smart contracts across major blockchain networks with a focus on security and scalability.
DevBrother is hiring a QA Automation Engineer to build and scale E2E test automation with Playwright and TypeScript for a crypto/fintech client's trading infrastructure. Day to day: automating API and real-time WebSocket testing, wiring reports/alerts into Slack, integrating tests into CI/CD (GitHub Actions), and mentoring manual QA peers. Remote within Europe.
Builds and scales the decentralized data infrastructure that lets users contribute encrypted data to AI models while preserving privacy, using cryptography and distributed systems.
A DevOps engineer builds, automates, and manages the infrastructure behind blockchain and crypto applications in Nelspruit — designing CI/CD pipelines, automating provisioning with Terraform/Ansible, and managing cloud and Kubernetes environments with a focus on reliability, scalability, and security.
Senior Frontend Developer focused on Web3: building responsive, high-performance UIs for decentralized apps and blockchain platforms with React/Vue, and integrating them with smart contracts and wallets via ethers.js/web3.js. Requires 5+ years frontend experience with JavaScript/TypeScript; remote role based in Vereeniging, South Africa.
A founding engineer to take co-founder-level ownership of an on-chain institutional FX hedging platform being built from scratch in New York (hybrid). Day to day this means expert-level Rust systems work on financial/trading infrastructure, with shipping experience using AI agents; DevOps skills are a plus.
Description Role : Head of Direct Business and Digital Assets Location : Abu Dhabi Role Purpose: The Head of Direct Business and Digital Assets will manage and develop ADIB Sec. direct trading channels ensuring the…
We are looking for a Principal Security Engineer with deep crypto domain expertise to lead security across our regulated digital-asset business. As we build out spot trading custody staking and on-chain services for…
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