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

📋 Description

• Take full responsibility for the entire lifecycle of product features, spanning from database schema design and backend development to frontend delivery and production monitoring.

• Design, develop, and maintain scalable event-driven and distributed systems that provide strong guarantees of reliability and data consistency.

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

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

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

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

• Participate in architectural decision-making and strive for continuous 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.

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

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

• Implement and sustain observability and monitoring solutions using tools such as Datadog or OpenTelemetry.

• Contribute to infrastructure automation and cloud resource management by applying Infrastructure as Code practices such as Terraform or Pulumi.

• Ensure that engineering practices adhere to security, compliance, and regulatory requirements, including SOC2 and PCI-DSS standards where relevant.

⛳️ Requirements

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

• Strong expertise in TypeScript and Node.js.

• Advanced proficiency with React and Next.js.

• In-depth knowledge of PostgreSQL and database engineering, including raw SQL, query optimization, migrations, and performance analysis.

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

• Comprehensive understanding of reliability engineering patterns, which includes:

• - Idempotency keys and retry strategies

• - Dead-letter queues (DLQs)

• - Outbox patterns

• - Reconciliation processes for ensuring data consistency

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

• Strong grasp of scalable system architecture, asynchronous processing, and fault-tolerant applications.

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

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

• Excellent problem-solving skills paired with a systems-thinking approach and attention to edge cases and data integrity.

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

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

• Familiarity with observability and monitoring platforms like Datadog or OpenTelemetry.

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

• Knowledge of property-based testing frameworks such as fast-check to validate complex business logic.

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

• Previous experience in mentoring engineers and contributing to technical leadership initiatives.

• Experience working in fintech or platforms with high transaction volumes.

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

• Experience collaborating within 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 anywhere that allows you to thrive. All you need is a laptop and a reliable internet connection.

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

• Paid Time Off: We prioritize your well-being. Our paid time off policies ensure you have the opportunity to relax and recharge when necessary.

• Work with Autonomy: Benefit from the freedom to manage your time as long as the work is completed. Focus on results, not the clock.

• Work with Top American Companies: Expand your expertise by engaging in innovative, high-impact projects with industry-leading U.S. companies.