Backbone Architect for Blockchain Payment Infrastructure

1 dia atrás


São Paulo, Brasil beBeeBackend Tempo inteiro

About Us We are a fintech company bridging traditional payments with blockchain rails, powering seamless, low-cost and compliant transfers using stable tokens, smart contracts and hybrid on/off-ramp infrastructure. The Role We're hiring a Senior Backend Engineer with expertise in fintech payment systems, blockchain protocols and stable token ecosystems. This engineer will design, build and scale the core transaction engine that routes fiat to crypto, settles on-chain and ensures regulatory compliance at every step. Responsibilities Architect and maintain high-throughput payment orchestration services handling fiat deposits, crypto swaps, stable token mint/burn and instant settlements. Build reconciliation systems syncing on-chain events (EVM, Solana, Stellar) with off-chain ledgers and banking rails (ACH, SEPA, SWIFT, SPEI). Implement risk, fraud and AML controls in real-time transaction pipelines. Design idempotent, event-driven microservices using Kafka/Pulsar and domain-driven patterns. Own blockchain node infrastructure (Geth, Solana RPC, custom indexers) and write secure smart-contract interaction layers. Scale systems to 10k+ TPS with sub-100ms latency for cross-border flows. Collaborate with compliance and product teams to embed KYC/KYT, travel-rule data and sanction screening. Lead incident response for payment disputes, rollbacks and chain re-orgs. Requirements 5+ years backend engineering in high-scale environments. Production experience in fintech/payments (acquiring, issuing, remittance or payout systems). Deep blockchain knowledge: EVM-compatible chains (Ethereum, Polygon, Arbitrum) Stable token standards (ERC-20, SPL, CCTP) MEV, gas optimization and on-chain data indexing (The Graph, Dune, custom subsql) Mastery of Go, Rust or Solidity. Event sourcing, CQRS and distributed transaction patterns. Secure handling of HSMs, key management and cryptographic signing. Observability stack: Prometheus, Grafana, OpenTelemetry and ELK. Experience with regulated environments (PCI-DSS, SOC2, PSD2, FinCEN travel rule). Benefits Equity in a rocket-ship startup. Unlimited PTO and global off-sites. Top-tier health, dental and remote workspace stipend. Work directly with ex-Stripe, Circle and Coinbase engineers. Shape the future of programmable money.



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