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Kstack

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7 jobs
Kstack
2 days ago

Desenvolvedor(a) Java Sênior – Clearing & Settlement

NewBe an early applicant HybridLATAM
Brazil

Senior Java developer building and sustaining the card clearing & settlement systems of an acquiring operation — generating outgoing/processing incoming files for Visa (Base II), Mastercard (IPM) and Elo, handling disputes/chargebacks, reconciliation and semiannual scheme mandates. Stack: Java 11+, Spring Boot/Batch, SQL, Kafka, Docker.

AWS Azure CI/CD Cloud COBOL +21 skills
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Kstack
2 days ago

Desenvolvedor(a) Java Especialista – Autorização de Transações

NewBe an early applicant HybridLATAM
Brazil

Senior Java specialist to technically lead the transaction authorizer for Kstack's card-acquiring operation, integrating online with brands like Visa, Mastercard and Elo. Day to day: building millisecond-level ISO 8583 authorization flows, EMV/HSM cryptographic security, fraud-engine integration and brand certification releases, hybrid in São Paulo or Belo Horizonte.

API AWS Azure CI/CD Cloud +25 skills
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Kstack
4 days ago

Senior SAP ABAP Developer

NewBe an early applicant HybridLATAMSenior
Brazil

Senior SAP ABAP developer designing, building, and maintaining modern SAP applications and extensions using RAP, SAP BTP, OData services, SAP Fiori, and Eclipse/ADT. Hybrid role based in São Paulo or Curitiba, Brazil, working with international stakeholders in fluent English.

ABAP Agile API Authentication CI/CD +18 skills
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Kstack
5 views 3 weeks ago

Desenvolvedor(a) Java - Sênior

Open 18d HybridLATAM
Brazil

Modelo de trabalho: - Vila Olímpia, São Paulo/SP - Híbrido, 3x por semana no escritório na Vila Olimpia, Contratação: - Enviar pretensão salarial para PJ e CLT. Principais tecnologias: • Java com Quarkus • React.js…

Aurora AWS Flutter Java Kafka +6 skills
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Kstack
4 views 3 weeks ago

Senior Application Developer

Open 22d HybridLATAMSenior
Brazil

Senior developer in São Paulo who leads enhancements, maintenance, and support of a web application for designing commercial-building HVAC automation systems, partnering with business stakeholders through the SDLC and providing L2 support and mentoring. Core stack: C#, .NET/.NET Core microservices, Angular, Oracle, AWS. Contract-to-hire: 3-month assignment converting to a direct internal role.

Accessibility AI Angular Automation AWS +10 skills
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Kstack
4 views 4 weeks ago

Desenvolvedor(a) Java Sênior — Barueri/SP

Open 24d On-siteLATAM
Brazil

Estamos buscando um(a) Desenvolvedor(a) Java Sênior para integrar o time de tecnologia. Buscamos um profissional com sólida experiência em desenvolvimento Java, com foco em Spring Boot e integração com bancos de dados,…

API CI/CD DevOps Docker Git +10 skills
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Kstack
11 views 2 months ago

Senior Python Engineer

Open 46d HybridLATAMSenior
Brazil

ML/AI Team Python | GCP | Generative AI | LLMs | Cloud Run | Kubernetes | Full-Stack About the Role We’re looking for a Senior Python Engineer to help shape the next generation of intelligent products as part of our…

Agile AI API AWS Azure +30 skills
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