Implement components across the on-chain transaction lifecycle, including calldata construction, signing requests, and nonce management.
Build new features within the institutional custody signing pipeline, including submission paths and asynchronous transaction handling.
Write comprehensive automated tests for backend services and smart contracts, and participate in an on-call rotation.
Cari is building blockchain-based payment infrastructure that enables real-time, 24/7 movement of digital money across traditional financial institutions and the digital asset ecosystem. As a pre-launch startup, they offer a remote-first environment with close collaboration from an experienced founding and engineering team.
Design and own backend systems for high-throughput, asynchronous workloads including generation queues and media processing
Architect for scale and reliability, making decisions on data flow, service boundaries, and failure handling
Build and optimize async pipelines with job queuing, retries, backpressure, and dead-letter handling
ImagineArt is a bootstrapped GenAI platform for image and video generation, serving Fortune 500 clients with $35M+ ARR. They are a small, fast-moving team with a low-process, bootstrapped culture.