Top Blockchain Jobs in Sydney

Leads the API and frontend engineering teams building Keet, a peer-to-peer messaging and video-calling app. Owns technical design, API architecture, performance, reliability, engineering standards, team delivery, and leadership development. Partners with product managers to scope and prioritize features, challenge assumptions, and translate product vision into buildable work. Requires strong product judgment, JavaScript and React expertise, and familiarity with distributed or local-first systems.

Analyze crypto portfolio and market data, build dashboards and reports, monitor asset performance, automate data workflows, ensure data integrity, and present actionable insights to finance, investment, and other stakeholders.

Provides remote customer and technical support for cryptocurrency and financial services clients. Troubleshoots exchange, wallet, blockchain, and account issues; explains digital assets and security practices; manages support tickets; escalates complex problems; assists with training; and collaborates with internal teams to improve processes and products.

Own affiliate growth for the Mandarin-speaking market by recruiting crypto affiliates, KOLs, influencers, HNW clients, and professional traders. Manage partnerships, negotiate campaigns, drive user acquisition, monitor conversion and trading-volume metrics, and optimize performance. Provide market intelligence on regulations, competitors, and community sentiment while collaborating with product, compliance, marketing, and VIP teams to localize the user experience.

Design, build, and scale backend services for DEX trading, including quote aggregation, order management, transaction orchestration, execution tracking, and reconciliation. Integrate with blockchain protocols, liquidity sources, RPC providers, and indexing services. Improve reliability under high concurrency through resilient state models, rate limiting, caching, asynchronous processing, monitoring, and graceful degradation. Own features from technical design through deployment and ongoing production operation.

Supports digital asset accounting and monthly close activities for a global cryptocurrency fintech platform. Responsibilities include reconciling wallet balances to blockchain data, maintaining crypto asset rollforwards, calculating fair market values, recording journal entries, performing balance sheet reconciliations, maintaining fixed asset schedules, preparing financial reporting and audit support, and improving accounting procedures.

Owns end-to-end product design for near.com, translating complex financial and cross-chain functionality into intuitive web and mobile experiences. Responsibilities include research, UX and visual design, prototyping, design systems, conversational and AI-powered interfaces, product strategy, and close collaboration with Product, Engineering, and Growth. The role also focuses on building trust, simplifying technical concepts, and delivering production-ready experiences.

Support Web3 users and technical operations across Telegram, Discord, blockchain infrastructure, RPC services, and AI-powered support workflows. Triage node and synchronization issues, develop and troubleshoot Telegram Bots and Mini Apps, maintain knowledge-base content, coordinate urgent issue resolution, and document solutions. The role requires blockchain fundamentals, programming ability, technical troubleshooting, responsive communication, and five-day weekly availability.

Assesses cyber and technology risks across systems, applications, cloud environments, and third-party solutions. Reviews architectures, evaluates security controls, recommends risk mitigation measures, prepares security reporting for IT leaders and executives, and supports initiatives improving organizational resilience and security frameworks. The role requires knowledge of ISO 27001, NIST 800-53, AWS or Azure, application security, risk management, and security and privacy controls.

Own the product roadmap for regulatory technology serving banks, regulators, and financial institutions adopting digital assets. Conduct client discovery, lead practitioner research, prioritize requirements, and translate customer needs into shipped features. Present products to clients, prospects, and regulators, collaborate with consultants, Business Development, Engineering, and the CEO, and defend roadmap decisions. The role requires B2B product management experience in regulated domains, strong technical fluency, regulatory knowledge, and regular domestic and international travel.

Own product marketing and growth for near.com, including positioning, target audiences, messaging, launches, onboarding, adoption, and retention. Translate user research and product data into product and UX recommendations, while partnering with Product and Growth. Support NEAR Intents partner positioning and launches with exchanges, wallets, fintech platforms, and distribution partners. Build scalable product marketing processes in a fast-moving, globally distributed startup environment.

Leads affiliate growth and user acquisition across Mandarin-speaking crypto markets. Builds affiliate networks, manages KOL and influencer partnerships, develops HNW client relationships, tracks acquisition and trading KPIs, provides market intelligence, and collaborates with product, compliance, marketing, and VIP teams to localize offerings and improve performance.

Own the backend and agent systems powering LLM products, including multi-turn conversations, tool calling, RAG, state management, evaluations, monitoring, and production reliability. Diagnose failures across models, knowledge systems, tools, and infrastructure; establish regression testing and quality measurement; and guide product and technical decisions. The role requires shipping and improving LLM features at scale, strong backend engineering, disciplined evaluation practices, and preferably Web3 experience.

Provides technical customer support for wallet functionality, payments, transactions, and security issues. Investigates logs, dashboards, APIs, and backend services; performs technical triage, monitoring, and incident support; escalates issues with structured diagnostic context; coordinates with engineering and operations teams; maintains runbooks and documentation; monitors community feedback; and contributes to automation, ticket deflection, and process improvements.

Drive strategy, delivery, and optimization of consumer crypto trading products. Build growth programs, creator- and community-driven experiences, referral and rewards systems, and tokenized real-world asset products. Use Web3 trading expertise, market data, experimentation, and user metrics to improve activation, retention, and trading volume while coordinating with global cross-functional teams and partners.

Leads OKX’s Australian commercial strategy and growth agenda, with accountability for market share, customers, trading volume, revenue, and brand recognition. Builds scalable acquisition and retention channels, develops go-to-market plans, establishes strategic partnerships, and connects global capabilities with local market needs. Collaborates with Product, Marketing, Growth, Operations, Legal, Compliance, and Risk to execute within Australia’s regulated digital-asset environment while building the team and commercial operating model.

Build responsive web applications and scalable frontend/backend services, design secure APIs and databases, implement AI-powered search and asset management features, collaborate on system architecture, and optimize performance and UX for a cloud-native DAM platform.

Develop backend blockchain functionality for Cardax DEX on the Cardano blockchain. Write and maintain smart contracts in Plutarch and Haskell that define the constraints and conditions for decentralized token exchange without a central entity.

Own the data platform product roadmap, including multi-chain ingestion, on-chain parsing, token and market data, APIs, datasets, analytics tools, governance, quality monitoring, and metric frameworks. Partner with engineering, backend, algorithm, BI, risk, growth, and business teams to deliver reusable data products. The role requires substantial product management experience, hands-on Web3 knowledge, understanding of blockchain data models, SQL proficiency, and familiarity with data infrastructure and analytics tooling.

AI/ML Engineers will build and deploy AI-native products, autonomous agents, LLM applications, RAG systems, and production ML pipelines. Responsibilities may include integrating AI into crypto infrastructure and consumer products, fine-tuning and evaluating models, optimizing inference, and developing agentic workflows and machine-to-machine payment systems. Engineers will work end-to-end with high-ownership teams in fast-moving environments.

Own the vision, strategy, and roadmap for CoinMarketCap’s on-chain data products. Responsibilities include writing product requirements and user stories, analyzing qualitative and quantitative data, collaborating with business, IT, and design stakeholders, evaluating launched features, and assessing competitors and partners. The role focuses on improving on-chain data infrastructure and integrating internal and third-party tools to create valuable products for cryptocurrency users.

Manage global treasury operations for a fintech and cryptocurrency platform, including daily cash positioning, bank reconciliations, liquidity management, cash forecasting, bank relationships, disbursement monitoring, financial reporting, variance analysis, compliance, and management decision support. Maintain rolling cash forecasts and accurate treasury records while coordinating with accounting and international banking partners.

Lead and operate LayerZero's presence in Hong Kong, focusing on business development in stablecoin and real-world asset sectors, managing client relationships and closing deals.

Leads and scales a global customer support function for a non-custodial crypto wallet. Responsibilities include managing and developing support staff, handling technical escalations, improving workflows and knowledge systems, monitoring service metrics, and enhancing AI-powered support. The role partners with Product, Engineering, Operations, and the AI Platform team on quality evaluation, safe human escalation, automation, rollout readiness, and user experience improvements.

Own OKX’s P2P liquidity-provider program across multiple markets. Manage partner relationships, tiering, account management, retention, marketplace depth, and service quality. Lead growth and retention strategy through funnel analysis and recurring performance insights. Partner with risk teams to improve user quality and reduce disputes. The role requires high ownership, frontline execution, team leadership, and experience scaling partner programs, preferably in payments, remittance, fintech, marketplaces, or emerging markets.