Senior Node.js Engineer (Backend)

TL;DR

Senior Node.js Engineer (Backend): Modernizing backend infrastructure by replacing cloud-managed services with self-hosted alternatives in a microservices environment, with an accent on scalability, security, and reliability. Focus on designing and maintaining Node.js/TypeScript services, migrating Firebase and storage components to MongoDB-based solutions, and optimizing performance across distributed systems.

Location: Sofia (Hybrid)

Company

hirify.global provides software development and managed services for global clients.

What you will do

• Replace the existing Firebase implementation with a locally hosted solution based on MongoDB.
• Design, implement, and maintain backend services using Node.js and TypeScript.
• Replace the current object storage service with a self-hosted storage implementation.
• Integrate new data storage and persistence layers within the existing microservices ecosystem.
• Collaborate with Java backend and Angular frontend teams to ensure seamless service integration.
• Optimize performance, reliability, and security; participate in architecture discussions, code reviews, and technical planning.

Requirements

• Strong commercial experience with Node.js and TypeScript.
• Solid experience with MongoDB, including schema design and performance optimization.
• Experience developing and maintaining microservices-based applications.
• Knowledge of REST APIs and backend integration patterns.
• Experience migrating or replacing cloud-managed services with self-hosted/on-premise alternatives.
• Familiarity with Git and modern software development workflows.

Nice to have

• Experience with Firebase migrations.
• Exposure to Java-based backend systems.
• Experience working with Angular applications.
• Knowledge of containerization and cloud-native technologies (Docker, Kubernetes).

Culture & Benefits

• Private health insurance and well-being programs.
• Flexible hybrid work model.
• Training and language classes.
• Laptops and gear, plus social events and great offices.

Hiring process

• Application review by the team.
• Talent acquisition interview followed by a technical interview.
• Optional customer interview for some roles, then a job offer.