Backend Engineer - Payment Vault, Tokenization & PCI DSS

Resolv Global; Soledad; Presencial; COP 56.675.000 - 63.759.000; A tiempo parcial

Ventajas ofrecidas por este puesto de trabajo

On-site in Barranquilla, Colombia

Descripción de la vacante

Resolv Global seeks a Backend Engineer specializing in payment infrastructure to join our Barranquilla team. You will build secure, multi-tenant backend systems for vaults, tokenization, and payment workflows, focusing on reliability and PCI DSS compliance.

You will work with Node.js, TypeScript, PostgreSQL, and various payment gateways, designing REST APIs and data models while protecting secrets and sensitive data across services.

Formación

• 1+ years of professional backend engineering experience.
• Strong hands-on experience with Node.js and TypeScript.
• Practical experience working with payment systems, payment gateways, tokenization, or payment vault infrastructure.
• Strong understanding of PCI DSS, CDE, tokenization, PCI scope reduction, and secure handling of payment data.
• Strong PostgreSQL experience.
• Experience developing and maintaining REST APIs.
• Experience integrating third-party APIs and services.
• Experience managing credentials, API keys, secrets, and sensitive data securely.
• Understanding of multi-tenant architectures and data isolation.
• Experience with AWS and Docker.
• Experience with secrets management and secure application configuration.
• Understanding of idempotency, webhooks, retries, transaction states, and payment lifecycles.
• Knowledge of authentication, authorization, encryption, and secure software development practices.
• Ability to work independently and take ownership of backend systems.

Responsabilidades

• Design and implement payment vault and tokenization integrations.
• Build secure workflows for collecting payment methods, tokenizing, and processing.
• Develop and maintain infrastructure for merchants, gateway accounts, credentials, payment methods, and transactions.
• Integrate and manage multiple merchant configurations with payment gateways.
• Work with payment gateway integrations, including NMI.
• Support secure payment method usage and routing across authorized merchants.
• Design and maintain REST APIs and PostgreSQL data models.
• Build backend services supporting merchants, payment methods, tokens, gateway configurations, and transaction lifecycles.
• Implement secure management of API keys, gateway credentials, secrets, and other sensitive information.
• Ensure sensitive payment information is properly protected across databases, logs, monitoring, and application infrastructure.
• Design systems with PCI DSS scope reduction and Cardholder Data Environment (CDE) security in mind.
• Implement reliable payment workflows using idempotency, webhooks, transaction state management, retries, and failure recovery.
• Troubleshoot complex backend and payment integration issues.
• Contribute to scalable, secure, and maintainable backend architecture.

Conocimientos

Node.js

TypeScript

PostgreSQL

Payment gateways

Tokenization

PCI DSS

REST APIs

AWS

Docker

Secrets management

Webhooks

Idempotency

Multi-tenant

Herramientas

NMI

Descripción del empleo

Resolv Global seeks a Backend Engineer specializing in payment infrastructure to join our Barranquilla team. You will build secure, multi-tenant backend systems for vaults, tokenization, and payment workflows, focusing on reliability and PCI DSS compliance.

You will work with Node.js, TypeScript, PostgreSQL, and various payment gateways, designing REST APIs and data models while protecting secrets and sensitive data across services.