[Contractor] Senior Blockchain Engineer (US based)

Cheesecake Labs•USA - Remote, None

1d•Remote

About The Position

Cheesecake Labs is seeking a Blockchain Engineer (Contractor) to join their network of engineers for project-based engagements. This role is designed for individuals who enjoy working across different products, clients, technologies, and business challenges in fast-moving environments. The ideal candidate will be adept at solving complex technical problems, navigating ambiguity, and contributing to real-world products used by companies across the US and Europe. This is a contractor opportunity, not a traditional long-term internal role, with flexible allocation based on project availability and fit. Opportunities may vary in duration, scope, and weekly commitment.

Requirements

Strong experience building or integrating blockchain infrastructure in production environments.
Understanding of Layer-1 blockchain mechanics such as transaction lifecycle, confirmations, finality, forks, reorgs, and event propagation.
Comfortable building backend services, APIs, event-driven systems, and distributed architectures beyond the blockchain layer.
Fullstack mindset – comfortable navigating adjacent technologies and collaborating across the stack.
Enjoy solving complex infrastructure problems where security, observability, and reliability matter as much as feature delivery.
Confident working in English with international clients and teams (calls, discussions, async) — at least advanced level.
Already use AI as part of their day-to-day workflow (protocol analysis, development, debugging, documentation, testing, or workflow acceleration).
Have a valid business registration in your country (CNPJ, VAT, EIN, or equivalent).
Have a bank account eligible to receive USD payments.
Be able to issue invoices accordingly.
Be based in the USA.

Responsibilities

Build and evolve blockchain infrastructure services that power production-grade digital asset platforms.
Work closely with team members to determine project scope and deliverables.
Integrate backend systems with Layer-1 blockchains, ensuring reliability, scalability, and operational resilience.
Build services such as blockchain indexers, event processors, chain APIs, wallet services, and transaction pipelines.
Design and improve blockchain workflows around transaction execution, event monitoring, reconciliation, and failure recovery.
Make trade-offs between scalability, security, observability, maintainability, and business priorities.
Collaborate with international clients and multidisciplinary teams to shape technical solutions for security-critical blockchain products.