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Lead Software Engineer, Clearing Engineering

On-siteNorth AmericaLead H-1B sponsor history

Lead engineer on Bullish's Clearing Engineering team building mission-critical, high-performance risk and clearing infrastructure for a regulated digital-assets exchange. Day-to-day involves designing scalable Java systems for market data ingestion, default management, and netting/settlement, with deep work on performance tuning, Kafka/Aeron middleware, and global collaboration across HK and NY.

Airflow AWS Big Data BigQuery Blockchain +27 skills

235K – 275K $

Senior Software Engineer, Clearing Engineering

On-siteNorth AmericaSenior H-1B sponsor history

Senior engineer on Bullish's Clearing Engineering team in New York, building high-performance Java microservices and stream-processing pipelines for clearing, risk management, and regulatory reporting on a cloud-native stack (Aeron, Kafka). Requires 6+ years on front-office trading systems at a regulated financial institution; $180k–$230k plus bonus.

Airflow Automation AWS Big Data BigQuery +29 skills

180K – 230K $

Circle Internet Management Services LLC

Senior Software Engineer, Frontend

RemoteNorth AmericaSenior

Senior frontend engineer building Web3 consumer apps, web SDKs, developer tools, and internal Customer Success tooling for Circle's stablecoin/blockchain platform. Day to day: React + TypeScript component work, code reviews, and automated testing/AI-assisted development.

AI Blockchain CI/CD CSS HTML +6 skills

153K – 205K $

Staff Machine Learning Engineer - Risk

On-siteAPACFull-timeStaff

Staff ML Engineer leading Breeze's payment-risk ML platform in Singapore (on-site): building production ML infrastructure on Databricks — feature pipelines, model training, deployment, drift monitoring, and low-latency inference — for fraud/risk decisions at a payments and stablecoins infrastructure startup.

AI Automation Data Engineering Databricks Feature Engineering +2 skills

Full Stack Engineer - Junior

On-siteNorth AmericaJunior

Junior full stack engineer at Breeze, a Sequoia-backed startup building AI-powered payments and commerce infrastructure. Day to day: build user-facing payment products with React/TypeScript on the frontend and Node.js on the backend, use AI coding tools like Claude Code, own features end to end, and join on-call rotations. Hybrid NYC role, three days per week in office.

AI API Blockchain Claude Code Fintech +4 skills

115K – 135K $

Circle Internet Management Services LLC

Senior Product Manager

RemoteAPACSenior

Owns product areas within Circle's Managed Payments — stablecoin-powered payment infrastructure for PSPs, banks, and enterprises — defining roadmaps for managed pay-ins, payouts, fiat conversion, and transaction lifecycle management, and leading cross-functional delivery with engineering, compliance, and treasury teams.

API Blockchain Fintech Rails

Iris Software Inc.

Crypto Engineer / Blockchain Engineer (Jersey City)

Staffing firm Iris Software is sourcing a Crypto/Blockchain Engineer focused on tokenization for its largest US financial client. The role is a long-term, W2-only assignment in a 3-days-per-week hybrid setup, based in Jersey City, NJ (also available in Southlake/Austin, TX and San Francisco, CA).

Senior Software Engineer - Go & Rust, Blockchain Infrastructure

RemoteNorth AmericaSenior

Senior individual contributor on Quicknode's Blockchain Infrastructure team, designing, building, and operating high-throughput, low-latency distributed systems that ingest, process, and serve blockchain data across 80+ networks. Hands-on ownership end to end in both Go and Rust, from architecture through production, observability, and incident response.

API Blockchain Cloud Developer Experience Distributed Systems +10 skills

171K – 214K $

Senior Software Engineer - Go

RemoteNorth AmericaSenior

Senior Go engineer on QuickNode's RPC Platform team, designing, building, and scaling high-throughput, low-latency distributed backend services that power the company's blockchain RPC infrastructure. Core focus: Go, distributed systems, databases, streaming architectures, and Web3/node infrastructure, with global remote work.

API Blockchain Cloud Developer Experience Distributed Systems +1 skills

171K – 214K $

DevOps Engineer – Kubernetes, CI/CD & FinTech Platform

DevOps/IT-Operations engineer (hired via Rocken for its client, a Swiss full bank) in Sankt Gallen, on-site, to run business-critical banking and blockchain-related platforms. Day-to day focus: containerized infrastructure (Kubernetes), CI/CD pipelines, and monitoring.

Blockchain CI/CD

DevOps Engineer (m/w/d)

DevOps Engineer (via a Rocken partner, a full-service bank in St. Gallen, Switzerland) keeping business-critical banking and integration platforms stable: administering Kubernetes, Apache Kafka, managed file transfer and MariaDB clusters, and automating build/test/deploy with GitLab CI/CD, with Azure, Terraform, Helm and Docker in the stack.

Azure Blockchain CI/CD Cloud Docker +8 skills

Cloud Counselage Pvt Ltd

Blockchain (Web3) Team Lead

RemoteAPACContractLead

Leads a team of blockchain engineers, setting technical direction and overseeing design, development, and deployment of smart contracts, dApps, and Web3 protocols. Core stack includes Solidity/Rust/Go, JavaScript and React front ends, and tooling like Truffle, Hardhat, and Remix.

Blockchain CSS DeFi Design Patterns HTML +8 skills

Luxor Technology Corporation

Golang Engineer: Cloud Platform

Remote Golang engineer on Tenki (a startup born inside Luxor) building the core cloud platform for a compute marketplace: gRPC/ConnectRPC API services, a secure microservices fabric, Ory-based identity, DDoS mitigation, and immutable infrastructure designed to scale from millions toward billions of users.

Agentic AI AI API Cloud GitHub +8 skills

Luxor Technology Corporation

Data Engineer

Builds and maintains scalable streaming and batch data pipelines (ETL) and cloud-deployed production databases for Luxor, a software and services provider for Bitcoin miners and the broader compute industry. Core stack: Python, PostgreSQL/PL/pgSQL, data warehouse tech like Trino, ClickHouse, and Airflow, plus Kafka/redpanda.

Agile AI Airflow Blockchain ClickHouse +11 skills

Job Tether Operations Limited

Senior Node.js Software Engineer - Holepunch (100% Remote, Worldwide)

RemoteEuropeSenior

Senior Node.js engineer on Tether's Holepunch team, building and maintaining a peer-to-peer stack and an ecosystem of 1,500+ public npm modules. Fully remote, worldwide role centered on modular Node.js code, npm packages, P2P/distributed systems, and network optimization.

AI Blockchain C++ Distributed Systems Networking +1 skills

Full Stack Engineer

CoinWorldCap, a crypto data aggregator, seeks a Full Stack Engineer in Kuala Lumpur to design and maintain scalable distributed backend systems and microservices — building REST/WebSocket APIs, optimizing MySQL/Redis, and running Kafka/RabbitMQ pipelines with Docker, Kubernetes, and CI/CD, while using LLM coding agents to accelerate development.

Agentic AI AI Analytics API CI/CD +21 skills

AI-Driven Backend Engineer for Fintech & Data Pipelines

Backend engineer at CoinWorldCap designing and scaling high-concurrency, distributed backend systems and data pipelines for fintech applications, using Go or Java/Node.js, maintaining cloud pipelines, and working with AI agents to accelerate prototyping and optimize performance from storage to deployment.

Agentic AI AI API Cloud Data Pipelines +4 skills

Backend Developer

Open 98d RemoteEurope

Senior Backend Developer builds and maintains scalable, secure backend services for a crypto wallet app using Node.js, PostgreSQL, MongoDB, and cloud platforms like DigitalOcean and Google Cloud.

API Blockchain Cloud Design Patterns DevOps +11 skills

60K – 120K €

Product Designer

Product Designer at a crypto startup building a luxury-brand NFT marketplace: owns UX/UI across the whole product lifecycle — user research, sketches, prototypes, and design systems — working side-by-side with product and engineering. Remote role based in Portugal with at least 2 hours' overlap with Lisbon time.

Blockchain Cryptocurrency User Research

Full-Stack Next.js / TypeScript Developer

RemoteWorldwideFull-time

Full-stack developer building and scaling production features for CARMLIZE's AI-driven crypto market-intelligence platform: responsive frontends, backend APIs, real-time/WebSocket data, and blockchain integrations using Next.js, React, TypeScript, and Node.js, deployed via Vercel/cloud.

AI Analytics API Authentication Blockchain +16 skills