Are you a passionate Node.js developer looking for your next challenge? Do you enjoy working with cutting-edge technology and collaborating with like-minded individuals? As a Node.js Engineer, you will play a critical role in developing and maintaining high-performance applications using the latest Node.js technologies. You will be responsible for designing, developing, and testing software solutions, as well as collaborating with cross-functional teams to ensure timely delivery of quality products.

The idóneo candidate should have a strong background in Node.js and JavaScript technologies, experience with agile development methodologies, and possess excellent problem-solving and communication skills. If you are excited about joining a dynamic and innovative team of developers, we want to hear from you.

/ Responsibilities

- Design, build, and maintain scalable backend services and APIs in a horizontally scaled, microservices-based architecture.
- Define and implement transactional flows across multiple microservices, handling consistency, failures, and retries.
- Learn the client's business model in depth and build a solid relationship of trust with client stakeholders.
- Own features and projects end to end, from technical design and estimation through delivery and production support.
- Write high-quality, well-tested code that follows our coding standards and best practices.
- Analyze complex problems, troubleshoot production issues, and make informed technical decisions.
- Collaborate with engineers, product, QA, and business partners,



and communicate effectively with managers and engineers alike.

/ Requirements

Technical Skills

- 5+ years of software development experience with JavaScript / TypeScript.
- 3+ years building backend services with Node.js and at least one modern framework such as NestJS, Express.js, or Hono.
- Experience designing and building RESTful and/or GraphQL APIs.
- Hands-on experience with AWS (preferred), Azure, or Google Cloud.
- Solid knowledge of distributed system design and the challenges of horizontally scaled environments.
- Experience with relational and non-relational databases.
- Experience with messaging or event-driven systems (e.g., SQS/SNS, Kafka, RabbitMQ).
- Experience writing unit and integration tests (e.g., Jest, Vitest).
- Familiarity with DevOps practices, CI/CD pipelines, and observability (logging, metrics, tracing).
- Proficiency with Git and code versioning workflows.

- Strong grasp of software design patterns and principles for building robust, scalable, and maintainable systems.
- Ability to estimate work accurately.
- Experience in the banking/fintech industry is a plus.
- Previous experience in a leadership role such as tech lead is a plus.

Soft Skills

- Strong sense of ownership.
- Excellent written and verbal communication and interpersonal skills.
- Ability to collaborate effectively with technical and business partners.
- Comfortable working in a fast-paced environment.
- Attention to detail.
- Team player.
- Problem solver.
- Advanced English level.
- Quick learner, passionate about learning new technologies.

📌 Backend Node.js Senior (Argentina)
🏢 Rockcruit
📍 Argentina