Top Remote Web3 Jobs in New York City, NY

Design and implement scalable backend services and APIs for SwapRail, including routing engines, execution services, data pipelines, simulation/validation layers, and observability. Integrate on-chain and off-chain data sources, optimize for low-latency high-throughput execution, and collaborate with frontend and wallet teams.

Responsible for managing and expanding key accounts by engaging potential customers, driving sales processes, and developing long-term relationships in the cybersecurity field.

Design, develop, validate, and deploy predictive risk models and decisioning frameworks for payments, fraud, and account compromise across ACH, wire, card, and crypto. Quantify portfolio-level losses, establish KRIs and monitoring, embed model-driven decisioning, run champion/challenger experiments, support investigations, and ensure model governance, calibration, and regulatory readiness while balancing fraud prevention with customer experience.

Design and implement core Web3 protocol features and secure smart contracts. Develop and deploy Solidity-based contracts, ensure scalability and performance, review code, mentor junior engineers, and collaborate across teams to integrate blockchain and DeFi solutions.

The Sales Executive will develop new AI and ML service opportunities, manage sales pipelines, and engage with technical decision-makers primarily in the US and Canada. Responsibilities include proposal shaping, pipeline management, and client relationship management with a focus on complex technology sales.

Design and build end-to-end geospatial data systems: ingest and process satellite imagery into columnar/chunked stores, expose results via GraphQL/REST and FastAPI, build Next.js/React dashboards, automate with IaC and CI/CD, orchestrate pipelines with Prefect, optimize petabyte-scale I/O, and lead hiring, mentoring, and engineering best practices.

Own and evolve the front-end architecture for a high-throughput, real-time trading app using Next.js, React, and TypeScript. Build pixel-accurate, accessible, responsive UIs under strict performance budgets; optimize rendering, state management, data flow, and bundle size for sub-second interactions. Integrate with REST and WebSocket APIs, lead end-to-end feature development, set engineering standards, mentor engineers, and contribute across the stack when needed.

Design, develop and operate microservice-based components for a derivatives exchange platform. Collaborate with product, security and DevOps teams to build scalable, secure back-end systems with automated testing, CI/CD, and rapid deployment. Participate in code audits, testing, release, and cross-stack problem solving; optimize and implement trading models and products.

The Blockchain Engineer will design, build, and scale smart contract systems, manage token logic, and optimize on-chain infrastructure in a fast-paced environment.

The Staff Unity Engineer will lead the development of a mid-core 3D mobile game, providing technical guidance, overseeing project milestones, and collaborating with various teams to ensure successful development from prototype to production.