Middle / Middle+ Back-End Node.Js Developer (банк) in Kliringoviy Dim, AB

Who are we looking for

We are a bank with a 29-year history. We are looking for a Middle or Middle+ level developer who has commercial experience in creating the backend part of systems on Node.js and has worked with a modern stack (NestJS, PostgreSQL, message brokers) to develop a mobile application.

We are not looking for junior level developers.

1. Hard Skills

Basic Stack

— Node.js — by 2+ years of commercial experience

- TypeScript (required, not just JavaScript)

- NestJS - production-service development experience

- PostgreSQL, Redis

—TypeORM or another ORM

Working with asynchronous services

—RabbitMQ or Apache Kafka (real experience in the project)

API development

- REST API development

- Experience with WebSocket or Socket.IO

— Integration between services / microservices

— API documentation (Swagger, maintaining technical documentation)

1. Infrastructure (basic understanding)

- Docker (building or using containers)

- Basic understanding of Kubernetes (optional)

principles of microservice architecture

1. Expectations from Middle / Middle+

Middle

—2-4 years of experience

—Implements tasks independently

—Understands asynchrony (async/await, promises)

—Worked with databases and SQL

—Writes structured and maintainable code

- Confident work with Git (branching, merge, pull request, etc.)

— Has experience working in a team

Middle+

—3-5 years of experience

— Can design a module or service

—Understands scaling principles

— Has experience working with message brokers in production

— Participated in code review

—Can assess the difficulty of tasks

(Designing the architecture of the entire system is optional)

Will be a plus

— CI/CD

— GitLab or GitHub

—AWS

—Testing (Jest)

— Monitoring (ELK, Prometheus, etc.)

Key Tasks

— Development and support of backend microservices on Node.js / NestJS

— REST API development and support

— Integration with external APIs and internal services

— Work with PostgreSQL (creating schemas, queries, optimization)

—Implementation of messaging via RabbitMQ / Kafka

— Development and support of unit tests

— API Documentation

—Participation in code review

— Working with tasks in Jira