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Senior Software Engineer - Acquiring

São Paulo, SP💼 Full-time🗓 2026-06-29 → 2026-09-26

Core

Building and maintaining high-performance transaction processing infrastructure for card payments, including authorization, capture, settlement, and fraud prevention.

Role type

Senior Software Engineer (Payments Acquiring)

Builds

Scalable APIs and services for the full transaction lifecycle, integrations with card networks and gateways, and automated financial reconciliation systems.

Domain

Fintech / Payments / Financial Services

Deliverable

production ML models | product features | infrastructure

Required skills

Serverless architecture, microservices, event-driven design, high-volume transaction systems, asynchronous messaging, DevOps practices, cloud cost optimization, clean code, business logic translation for payments.

Preferred skills

GCP (Cloud Run, Functions, Pub/Sub), ISO 8583 protocols, card ecosystem knowledge (Visa, Mastercard), fraud detection and risk modeling, PCI DSS, ISO 20022, payment gateway integration.

Technologies

GCP, Cloud Run, Cloud Functions, Pub/Sub, Cloud Tasks, Cloud Scheduler, ISO 8583, ISO 20022

Responsibilities

Develop and scale APIs for authorization, capture, cancellation, and chargeback; evolve integrations with card providers and gateways; build automated financial reconciliation pipelines; implement and maintain real-time fraud detection engines; optimize system performance and latency; ensure observability and proactive monitoring; debug and mitigate critical production incidents.

Seniority

Senior, hands-on IC

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