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DevOps Engineer - Coinmerce B.V.

Open 40d Europe

DevOps Engineer at Coinmerce, a Dutch crypto services group (brokerage, asset management, prop trading), working on-site in Schiphol-Rijk. Day to day: build and maintain scalable cloud infrastructure for microservices, automate CI/CD pipelines, implement observability, and handle security, compliance, and incident resolution.

Automation CI/CD Cloud DevOps Fintech +2 skills

Ruby on Rails developer

Open 40d Remote

SproutsAI is hiring a Ruby-focused developer to build and support data processing algorithms and pipelines in a petabyte-scale distributed system, including blockchain/crypto data parsers, CI/CD, and monitoring. Core stack is Ruby, SQL, and Linux, with Rails, GraphQL, Airflow, and ClickHouse as welcome extras.

Airflow Blockchain CI/CD Data Pipelines Data Quality +8 skills

Front-End Developer-Website animator (Remote)

Open 40d Remote

Remote freelance front-end developer to build the Humanode (crypto DLT) website, working closely with designers on heavy animation and 3D integration using Blender renders. Core stack is TypeScript, React.js, and Next.js; the gig is ongoing at less than 30 hrs/week.

Blender Game Development HTML JavaScript Next.js +2 skills

30 – 50 $ / hr

Project Manager/ Organizer (Remote)

Open 40d Remote

Remote project manager/organizer for Humanode, a Proof-of-Personhood decentralized ledger (blockchain) project: managing and organizing teams, building project plans, schedules, scope and risk controls, and engaging with the community. Requires English fluency, basic blockchain understanding, Agile/Kanban knowledge, and Notion/GitHub skills.

Agile Blockchain GitHub Kanban Notion +1 skills

Senior UX/UI designer (Remote)

Open 40d RemoteSenior

Remote senior UX/UI designer role for Humanode, a blockchain project building a biometric Proof-of-Personhood decentralized ledger. Day to day: design mobile and web interfaces, wireframes, mockups and prototypes in tools like Figma and Sketch, and collaborate with marketing, engineering, PMs and QA.

Adobe XD Agile Figma Illustrator InVision +7 skills

Solutions Engineer

Open 108d RemoteNorth America

Solutions Engineer bridges technical and sales teams to drive crypto payment adoption, focusing on API/SDK implementation, customer mentorship, and demo optimization for fintech/crypto clients.

AI Amplitude Analytics API Automation +4 skills

140K – 180K $

Staff Software Engineer - Data Products

Open 40d RemoteNorth AmericaPart-timeStaff

Staff engineer on Dune's Data Products team owns the end-to-end lifecycle of curated onchain datasets — building dependency-aware orchestration, schema evolution, backfills, and data-quality/alerting systems in a polyglot backend stack (Go, Kotlin, Rust, Python, SQL). Fully remote role for a ~50-person blockchain data startup across Europe and eastern US timezones.

AI Blockchain Data Lake Data Quality dbt +12 skills

Agensi Pekerjaan Penta Consultancy Sdn. Bhd

Project Manager

A project manager in Kuala Lumpur who coordinates timelines, deliverables, and cross-functional communication, turning business requirements into documentation and specs. Works with Figma, Notion, Jira, and Confluence, leverages AI tools for productivity, and brings 2+ years of PM experience with basic Web3 knowledge.

AI Blockchain ChatGPT Confluence Figma +7 skills

Agensi Pekerjaan Penta Consultancy Sdn. Bhd

Blockchain Developer

A blockchain developer role in Puchong, Malaysia focused on architecting and maintaining a Substrate-based blockchain, developing Solidity smart contracts and dApps, and setting up blockchain nodes with the DevOps team. Requires 2+ years of experience with Solidity, Node.js/React, and Git; Rust is a plus.

Blockchain DevOps Git Node.js React +4 skills

Senior Graphic Designer

Open 40d LATAMSenior

Mexo, a crypto industry company, is hiring a Senior Graphic Designer in Mexico City to create branding, marketing, event, sales, and editorial graphics while building and upholding a company-wide design guide. Requires bilingual Spanish/English communication, 2+ years of design experience, and Adobe Creative Suite proficiency.

Adobe Creative Suite Video Editing

Video Editor

Mexo is hiring a Video Editor in Mexico City to capture studio-quality photos and video, manage all technical aspects of recording and editing, and develop the company's video brand messaging. The role requires Final Cut Pro X and Adobe After Effects skills and close collaboration with creative and marketing teams.

After Effects Final Cut Pro Motion Graphics

Desarrollador .NET / Software Engineer

Open 40d RemoteLATAM

Noves, a US-based blockchain data-analytics startup, is hiring a .NET/C# software engineer (2+ years) in Uruguay to work remotely with a distributed US/Europe team building software that analyzes blockchain data like Ethereum. Advanced English for technical conversations is mandatory; DevOps, Python, React, NoSQL, and blockchain knowledge are pluses.

Azure Blockchain Cosmos Db C# DevOps +11 skills

Senior DevOps Engineer (Remote)

Open 40d RemoteLATAMSenior

Noves, a Web3/blockchain data startup, is hiring a senior DevOps engineer to run its cloud-native infrastructure largely as a one-person team — managing .NET Core deployments on Kubernetes in Azure. The core stack includes Docker, Kubernetes, Helm, ArgoCD, Terraform/Pulumi, CI/CD, and Linux.

Active Directory Argo CD Azure Azure DevOps Azure Functions +26 skills

Engenheiro de Testes e Qualidade Blockchain

Open 40d RemoteLATAM

QA/Test engineer focused on blockchain products: creates, executes and documents manual and automated test plans for tokenization systems, smart contracts and crypto-asset features, validating end-to-end flows between blockchain, APIs and backend services. Core stack includes Hardhat/Truffle/Remix, Postman/Swagger and automation frameworks like Selenium, Cypress or Playwright.

API Blockchain Cypress Ethereum JavaScript +8 skills

Cybersecurity Engineer – OT/ICS

Open 40d RemoteLATAM

Staffy, a LATAM/US recruiting and staffing firm, is hiring a Cybersecurity Engineer – OT/ICS to secure operational technology at Bitcoin mining sites and energy infrastructure: building OT asset inventories, implementing IT/OT segmentation (Purdue Model, IEC 62443), running OT monitoring (Dragos/Nozomi/Claroty), and handling NERC CIP and incident response.

AI Automation ChatGPT Cissp Cybersecurity +4 skills

BlockRoute Labs

Backend trading system developer

Open 40d RemoteWorldwidePart-time

Builds and operates production backend trading systems for a crypto prop-trading firm: real-time market-data ingestion, order execution and routing across CEXs and DEXs, position tracking, and risk controls. Stack references Python/Go/Rust/C++, Redis/Kafka/ZeroMQ, WebSocket/REST, and web3 tooling. Fully remote contract at $70–90/hr.

API C++ DeFi Kafka Networking +11 skills

70 – 90 $ / hr

Technical Delivery Manager

Open 40d HybridAPACContract

Vinova, a Singapore-based custom software developer, is hiring a Technical Delivery Manager to lead large-scale digital transformation projects: running presales/bid management, governing architecture and quality gates, and managing 30-50 engineers across Singapore and Vietnam. Core tech includes Azure/AWS, .NET Core, Node.js, Java, ReactJS, SQL Server/PostgreSQL, Redis, and DevSecOps CI/CD toolin

Agile API AWS Azure Blockchain +26 skills

Business Analyst

Open 40d HybridAPAC

Vinova is hiring a Business Analyst (up to Senior Consultant level) in Singapore to work on a major Government project. The role blends business analysis with project management: analyzing complex requirements, leading delivery, mitigating risks, and communicating with Government stakeholders.

Blockchain E-commerce Fintech IoT Networking

DevSecOps Engineer

Open 40d APACContract

Vinova, a Singapore custom software developer, seeks a DevSecOps Engineer to run day-to-day ICT infrastructure — servers, hosting, networks, end-user computing and data centre operations — including contractor management, compliance with Government IM8/CCS policies, procurement/tendering and annual disaster-recovery testing.

AWS Blockchain Cissp Cloud Cloud Security +6 skills

NeedleFinder Recruiting

Senior Frontend Engineer

Open 40d North AmericaSenior

Senior Frontend Engineer building React/TypeScript UIs — including an OSS IBC dashboard and developer tooling — for a NYC-based, seed-funded web3 interoperability startup (via NeedleFinder Recruiting). The role is hybrid/in-person from a Manhattan office and pays $200k–$300k plus equity.

Blockchain DeFi HTML JavaScript Networking +3 skills

200K – 300K $