Top Blockchain Jobs in Sydney

Designs and maintains automated testing frameworks for margin trading and risk systems using Java and/or Rust. Responsibilities include test planning, environment management, black-box and white-box testing, security and performance testing, defect analysis, and validation of complex trading workflows, margin calculations, liquidation processes, and high-concurrency distributed systems.

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.

Conduct technical research at the intersection of AI and blockchain, exploring LLMs, agents, on-chain data, trading, and intelligent applications. Build reproducible prototypes and validate innovative ideas through proof-of-concepts and product demonstrations. Track industry developments, analyze research findings, document conclusions, and collaborate with algorithm and engineering teams to advance concepts toward implementation.

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.

Develop AI-driven quantitative trading strategies across traditional and on-chain markets. Responsibilities include factor mining, prediction modeling, strategy design, backtesting, portfolio construction, risk control, execution optimization, and live deployment. Build end-to-end research and trading pipelines, integrate data and low-latency execution systems, and optimize strategy performance, P&L, alpha generation, and risk across equities, futures, and cryptocurrency markets.

Design, build, and operate Java backend services, REST APIs, compliance capabilities, and analytics products. Develop blockchain data pipelines, model relational and NoSQL data, optimize queries, and improve production reliability, observability, and performance. Translate regulatory requirements into technical solutions while collaborating with compliance and product specialists. The role may also involve AWS infrastructure, Kafka, crypto integrations, and AI-assisted development tools.

Create educational articles, product guides, tutorials, course materials, and videos explaining cryptocurrency, trading, blockchain, and Web3 products. Script and present on-camera content, support product launches, repurpose content across channels, coordinate reviews and publication, track performance, and use AI tools to improve production efficiency while maintaining accuracy.

Own Binance Earn’s TradFi product line, including ETFs, mutual funds, equities, futures, and structured options products. Lead product strategy, market research, requirements, PRDs, design, launch, and iteration. Partner with Quant, Market Makers, Engineering, Compliance, Legal, Risk, and Operations to deliver regulated financial products. Optimize structured-product pricing, yields, launch strategies, and growth metrics while exploring tokenized assets, RWA, and crypto-TradFi opportunities.

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.

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.

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.

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.

Design, develop, and maintain high-performance backend systems for a Web3 Wallet DEX. Apply blockchain technology, contribute to technical architecture, improve system reliability and scalability, and introduce innovative solutions. The role requires Java development, distributed systems expertise, MySQL performance tuning, and collaboration in a fast-paced team.

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.

Conduct high-volume outbound phone and text outreach to inactive cryptocurrency platform customers. Re-engage customers through consultative selling, explain products and benefits, address objections, use promotions and incentives, and recover revenue. Prioritize prospects using transaction and inactivity data, identify growth opportunities, and maintain accurate CRM records. The role is fully remote and requires strong communication, self-motivation, relationship management, and comfort discussing cryptocurrency.

Design and maintain backend infrastructure for Hadron, Tether’s enterprise tokenization platform. Build APIs, tokenization workflows, blockchain integrations, transaction orchestration, smart contract services, permissions, multi-signature approvals, auditability, compliance integrations, and operational tooling. Improve scalability, observability, monitoring, and reliability while collaborating with Product, Engineering, Compliance, and Solutions teams to deliver institutional digital asset capabilities.

Internship supporting marketing and business development operations: manage partner relationships, assist in planning and executing marketing campaigns, conduct market and partnership analysis, monitor campaign performance, collaborate cross-functionally, maintain campaign/tracking tools, and improve workflows using AI.

Leads Fiserv’s APAC growth, commercialization, and go-to-market strategy for embedded finance and digital assets. Drives business development, client acquisition, revenue growth, strategic partnerships, and ecosystem expansion. Builds executive relationships across financial institutions, fintechs, merchants, platforms, and marketplaces; coordinates with Product, Sales, Legal, Compliance, Risk, and Delivery teams; provides regional market expertise; influences product roadmaps; and represents Fiserv externally.

Owns end-to-end delivery and roadmap strategy for exchange crypto wallet products. Coordinates product, engineering, and design teams; leads tokenized asset, deposit, withdrawal, and distribution initiatives; improves user experience and security; evaluates feature performance using data; and communicates plans to senior stakeholders. Requires experience with complex integrations, financial or payment products, blockchain exposure, agile methodologies, and bilingual English-Mandarin communication.

Lead application support for Digital Custody Assets, manage incidents and outages, coordinate disaster recovery and resiliency tests, drive process improvements, enforce onboarding and non-functional standards, provide technical guidance to development, and manage a team of support engineers while partnering across technology and business stakeholders.