Top Blockchain Jobs in Los Angeles, CA

Leads business development for USDC adoption across repo, derivatives, and dealer balance-sheet workflows. Engages swap dealers, primary dealers, FCMs, CCPs, custodians, and market infrastructure providers; drives pilots from design through execution; coordinates with product and engineering teams; aligns integrations with regulatory, legal, compliance, and risk requirements; advises leadership on capital and liquidity benefits; and negotiates strategic C-level partnerships.

Build and operate production machine learning systems for ranking, retrieval, recommendations, search, propensity, churn, LTV, and next-best-action decisioning. Design reliable signal contracts covering freshness, provenance, confidence, eligibility, and calibration. Lead feature pipelines, model serving, experimentation, monitoring, and feedback loops while evaluating fairness, risk, compliance, trust, and long-term customer impact. Collaborate across product, growth, data, platform, modeling, risk, and compliance teams.

Own the full lifecycle of programmatic and social advertising accounts, including prospecting, closing, campaign strategy, execution oversight, retention, and expansion. Build relationships with brands and agencies, monitor performance, recommend optimizations, evangelize commerce media internally, and collaborate with product, marketing, data science, strategy, and payments teams. Create sales narratives, case studies, playbooks, and growth opportunities while helping establish Cash App Media Network’s advertising business.

Leads architecture and hands-on engineering across a futures commission merchant platform, including market data, order routing, settlement, reporting, risk, and liquidation. Drives replatforming away from legacy vendors, improves reliability and technical quality, partners with product, risk, operations, finance, and compliance, and mentors engineers. Requires extensive backend distributed-systems experience, direct FCM or derivatives expertise, regulated-finance experience, and proficiency in Go, Java, or similar technologies.

Build and operate low-latency, event-sourced trading infrastructure for Coinbase’s institutional exchange, including matching engines, order management, risk, market data, and funding systems. Own reliability, correctness, incident response, and failover for high-throughput 24/7 production systems. Drive technical designs, collaborate cross-functionally on milestones, and write highly tested performance-critical backend code in Java, C++, or Go.

Design and build reliable backend services and integrations for Coinbase’s Unified Merge Gate. Lead automated code review, policy evaluation, CI evidence, authorization, merge controls, repository migrations, safe rollouts, observability, and operational ownership. Partner with Security, Compliance, Infrastructure, and engineering teams to improve software review and deployment workflows while measuring merge quality, review volume, time-to-merge, and escaped defects.

Build and operate production machine learning systems for ranking, retrieval, recommendations, search, propensity, churn, lifecycle intelligence, and next-best-action decisioning. Design reliable signal contracts with freshness, provenance, confidence, and calibration guarantees. Lead experimentation, monitoring, feedback loops, and impact evaluation focused on fairness, trust, risk, compliance, and long-term engagement. Partner across product, growth, data, platform, modeling, risk, and compliance teams.

Design and own secure, scalable wallet infrastructure for custody, key management, transaction signing, authorization, recovery, and multichain systems. Architect support for MPC, HSMs, secure enclaves, TEEs, smart contract wallets, account abstraction, and emerging cryptographic approaches. Define security boundaries, policy engines, secrets management, authentication, and programmable authorization while making foundational build-versus-buy decisions and guiding systems from first principles through production.

Leads a 12-person application security practice conducting code audits, vulnerability research, and secure design reviews. Oversees technical delivery, client relationships, project staffing, utilization, profitability, recruiting, and team development. Provides hands-on technical direction across source-code security work, determines investments in tooling and methodologies, and integrates AI-assisted auditing and research into team workflows. The role also owns practice P&L and supports engineers’ conference, publication, and open-source contributions.

Provide tax preparation, planning, and advisory services for individuals and businesses holding bitcoin and digital assets. Prepare and file tax returns, calculate cost basis and gains/losses, advise on mining/staking/airdrop income, collaborate with advisors and estate planners, maintain compliance documentation, and contribute thought leadership through articles and webinars.

Design, build, test, and deploy smart contracts and decentralized applications. Maintain blockchain integrations and backend services, optimize for security and gas efficiency, contribute to architecture and technical strategy, conduct code reviews, mentor junior engineers, and collaborate with product, frontend, and security teams.

Provides office operations support through document production, copying, scanning, binding, mail and shipment processing, supply inventory, equipment maintenance, conference room setup, hospitality services, filing, archiving, and backup reception coverage. Responds to service requests and customer inquiries while maintaining organized, stocked, and functional work areas. Requires professional customer service, basic computer skills, physical ability to lift up to 50 pounds, and adaptability in a fast-paced office environment.

Supervises warehouse operations, including inbound and outbound scheduling, staffing, work assignments, inventory accuracy, productivity tracking, payroll, safety compliance, and workflow coordination. Directly manages more than 20 employees, handling hiring, training, performance evaluations, discipline, employee concerns, and operational procedure updates. Ensures materials are properly received, stored, inventoried, issued, and shipped while resolving inventory discrepancies and meeting customer service metrics.