Senior Backend Engineer - Node.JS (Spain, remote, f/m/d)

As a Senior Backend Engineer - Node.JS at Factor Eleven, your primary responsibilities will include developing and maintaining microservices and back-end components, ensuring optimal performance of databases, and collaborating closely with developers and product owners. You'll be instrumental in writing efficient and testable code, implementing security protocols, and documenting server-side processes, among other tasks.

To qualify for the Senior Backend Engineer - Node.JS role at Factor Eleven, you'll need at least 5 years of experience in a similar capacity. Strong proficiency in NodeJS with TypeScript, experience in working with AWS or Kafka, and a solid understanding of GraphQL/REST-APIs are essential. Familiarity with event-driven architecture and the capacity to mentor teammates are also key qualifications.

Factor Eleven offers comprehensive support to its Senior Backend Engineers through continuous professional development opportunities, flexible work hours, and a fully remote working environment. The company provides resources for personal growth, including courses from Udemy, and encourages mentorship within the team to foster collaborative learning and skill enhancement.

In your role as a Senior Backend Engineer - Node.JS at Factor Eleven, you'll work with leading technologies such as NodeJS with TypeScript, Docker, federated GraphQL, AWS, and Apache Kafka. This diverse tech stack enables you to create scalable and efficient back-end solutions that are critical for our SaaS suite of applications.

The company culture at Factor Eleven is built on collaboration, innovation, and camaraderie. As a Senior Backend Engineer, you’ll be part of a supportive team that values transparency and open communication. Factor Eleven encourages a healthy work-life balance with fully remote operations, allowing team members the flexibility to thrive both personally and professionally.

When answering this question, illustrate your technical proficiency by detailing specific projects where you utilized NodeJS. Discuss the challenges you faced, how you approached problem-solving, and the outcomes of your work. Highlight your familiarity with TypeScript, libraries, and frameworks that complement NodeJS.

Explain your process for designing microservices, including how you define the appropriate scope for each service and the considerations you make for scalability. Discuss your experience with service communication methods, such as REST or GraphQL, and how you ensure fault tolerance and resilience in your designs.

Share your strategies for optimizing databases, such as indexing, normalized vs. denormalized structures, and caching mechanisms. Provide examples from past experiences where your optimizations led to performance improvements.

Discuss the security measures you implement, such as authentication techniques, securing APIs, and data encryption practices. Provide examples of how you have implemented security protocols in past projects and how they mitigated risks.

Detail your experience with specific AWS services relevant to backend development, such as AWS Lambda, S3, or DynamoDB. Discuss how you've utilized these services to enhance application scalability, reliability, and cost-effectiveness.

Explain your understanding of event-driven architecture and provide examples of how you have implemented it in previous projects. Discuss the benefits of this approach in terms of scalability and responsiveness.

Emphasize the importance of constructive feedback in code reviews. Share your approach to reviewing code, how you encourage open dialogue during the process, and your strategies for promoting a learning culture within the team.

Describe your commitment to continuous learning by mentioning specific resources you utilize, such as online courses, tech blogs, community forums, or meetups. Share examples of how you’ve applied new knowledge in your work.

Use the STAR method (Situation, Task, Action, Result) to describe a challenging technical problem you encountered. Detail the steps you took to resolve it, the collaboration involved, and how it led to a positive outcome.

Discuss your methods for prioritization, such as assessing project deadlines, stakeholder needs, and overall project impact. Share your experiences with agile methodologies or project management tools that help you maintain focus and efficiency.