Senior Full-stack Engineer – React, Node, Backend-Focused

This is a fully remote position, open to applicants in Latin America.

📋 Description

• Take full ownership of the entire lifecycle of product features, encompassing database schema design, backend implementation, frontend delivery, and production monitoring.

• Design, develop, and uphold scalable, event-driven, and distributed systems that offer robust reliability and data consistency.

• Create and enhance complex PostgreSQL queries, migrations, and transactional workflows to support high-performance financial operations.

• Establish resilient integrations with third-party systems utilizing webhooks, queues, retry mechanisms, and reconciliation processes.

• Apply reliability engineering practices, including idempotency, dead-letter queues (DLQs), outbox patterns, and fault-tolerant processing.

• Develop responsive, high-quality user interfaces with React and Next.js.

• Engage in architectural decision-making and strive for ongoing improvements in system scalability, observability, and operational excellence.

• Utilize AI-assisted development tools like Claude Code or similar platforms to enhance engineering productivity and expedite delivery.

• Participate in code reviews, mentor fellow engineers, and advocate for best practices in managing sensitive financial and transactional data.

• Collaborate across functions with product, design, and engineering stakeholders to create outstanding user experiences.

• Implement and sustain observability and monitoring solutions through tools like Datadog or OpenTelemetry.

• Contribute to infrastructure automation and cloud resource management using Infrastructure as Code methodologies such as Terraform or Pulumi.

• Ensure engineering practices comply with security, regulatory, and compliance standards, including SOC2 and PCI-DSS when applicable.

⛳️ Requirements

• Over 5 years of experience as a Full-Stack Engineer delivering end-to-end production-ready applications.

• Strong command of TypeScript and Node.js.

• Advanced proficiency in React and Next.js.

• Extensive expertise in PostgreSQL and database engineering, encompassing raw SQL, query optimization, migrations, and performance analysis.

• Demonstrated experience in designing and maintaining event-driven and distributed systems.

• In-depth understanding of reliability engineering patterns, including:

• Idempotency keys and retry strategies

• Dead-letter queues (DLQs)

• Outbox patterns

• Reconciliation processes for data consistency

• Experience in constructing webhook-driven architectures and integrating third-party systems.

• Solid comprehension of scalable system architecture, asynchronous processing, and fault-tolerant applications.

• Background in financial, payments, billing, payroll, or ledgering systems.

• Practical experience with AI-assisted development tools such as Claude Code or similar agentic coding platforms.

• Strong analytical skills with a systems-thinking approach and a focus on edge cases and data integrity.

• Exceptional communication skills and the ability to work independently within high-impact engineering teams.

• Familiarity with Infrastructure as Code tools like Terraform or Pulumi.

• Knowledge of observability and monitoring platforms such as Datadog or OpenTelemetry.

• Experience in regulated or compliance-heavy environments, including SOC2 or PCI-DSS.

• Understanding of property-based testing frameworks like fast-check for validating complex business logic.

• Experience optimizing applications for scalability, reliability, and operational excellence.

• Previous experience mentoring engineers and engaging in technical leadership roles.

• Experience within fintech or high-transaction-volume platforms.

• Exposure to modern AI-enhanced engineering workflows and automation practices.

• Experience collaborating in autonomous, product-focused engineering teams.

• A passion for clean architecture, exceptional user experience, and high-quality software craftsmanship.

🏝️ Benefits

• 100% Remote Work: Enjoy the flexibility to work from wherever you thrive, requiring only a laptop and a reliable internet connection.

• Highly Competitive USD Pay: Receive an outstanding, market-leading salary in USD that exceeds typical market offerings.

• Paid Time Off: We prioritize your well-being with paid time off policies that allow you to relax and recharge when necessary.

• Work with Autonomy: Enjoy the ability to manage your time effectively, focusing on results rather than clock-watching.

• Work with Top American Companies: Enhance your skills by working on innovative, high-impact projects with industry-leading U.S. companies.