Top Blockchain Jobs in Los Angeles, CA

Lead technical direction and architecture for Neighborhoods mobile across Cash App and Square. Drive cross-organizational integration, remain hands-on in iOS development (SwiftUI, Workflow), apply AI-native engineering practices, mentor engineers, and collaborate with backend, web, Android, product, and design partners to deliver reliable, scalable mobile experiences.

Field-driven territory sales role responsible for generating and closing pipeline through in-person outreach and demos. Build local partnerships, master verticals (restaurants, retail, services), manage Salesforce pipeline, exceed quota, and ensure fast onboarding and customer referrals.

Design and build features for the SFS banking platform, onboard Block products, build secure fault-tolerant systems handling sensitive financial data, ensure service reliability, remediate incidents, and create durable operational fixes.

Lead and manage software engineering teams: run agile processes, design and ship secure scalable APIs and services, guide architecture, manage technical debt, recruit and mentor engineers, and align work with company objectives.

Design, build, and operate backend Go services and smart contracts that mint, burn, bridge, and reconcile wrapped assets across multiple chains. Own end-to-end delivery from smart contract deployment through API design, SLOs, and production rollout. Drive asset migration pipeline improvements, run on-call operations, build observability and runbooks, and mentor junior engineers.

Lead Finance support for product launches by coordinating across accounting, tax, treasury, risk, and operations. Oversee launch reviews, perform accounting treatment assessments, design and implement controls, produce audit-ready documentation and executive reporting, and partner with Finance Engineering to automate reporting and processes. Serve as trusted advisor to business partners and manage cross-functional workstreams to ensure compliance and operational readiness.

Design and deliver blockchain network infrastructure and platform APIs, lead multi-quarter initiatives (chain integrations, re-architecture, data migrations), define APIs/SLOs/observability and on-call ownership, ship SDKs and platform primitives, establish data contracts, and simplify cross-chain operations to enable analytics, ML, and data engineering teams.

Design, build, and operate production ML decision systems to detect and prevent payment fraud, account takeover, identity abuse, merchant/marketplace risk, scams, and other adversarial activity. Own end-to-end production lifecycle: data contracts, low-latency inference, batch scoring, feature quality, deployment, monitoring, incident response, rollback, and feedback loops. Develop AI-assisted workflows and reusable decision capabilities while partnering with modelers, product, compliance, and operations.

As a Security Engineer, you will conduct security assessments, develop security tools, perform architecture reviews, and collaborate on advanced security research.

Prepare and file individual and business tax returns involving bitcoin and digital assets. Provide cryptocurrency tax planning, calculate cost basis and gains or losses, maintain compliance records, collaborate with financial and estate planning teams, monitor regulatory changes, and contribute to thought leadership through articles, webinars, and industry events.

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.

Promote BeBetter Shop's Booster packages within the crypto, SaaS, and FinTech industries, leveraging established connections for sales.

Design, build, and maintain scalable end-to-end systems and APIs/SDKs for an enterprise custody platform. Work full-stack across databases, cloud deployments, CI/CD, and security; troubleshoot issues, integrate emerging technologies, and mentor junior engineers.

The Finance Manager will oversee finance workstreams, manage crypto and fiat operations, integrate financial systems, and ensure compliance. Responsibilities include financial analysis, reporting, and process optimization, collaborating across teams.