Mid/Senior Backend Developer (NodeJS/NestJS)

• Work directly with the Product Owner and other IT developers to clarify requirements and propose solutions.
• Participate in the complete software development cycle (requirement analysis, planning, implementation, code review, testing, deployment, operation, monitoring, etc.).
• Develop new features requested by the Product Owner.
• Backup source code, optimize security layers, and monitor server performance to handle high user loads.
• Continuously listen to user feedback to find ways to improve product quality.
• Research technologies and share knowledge with colleagues.

• 5+ years of experience in back-end development.
• Expertise in JavaScript, NodeJS (ExpressJS, NestJS).
• Experience in deploying NodeJS backend applications to servers.
• Strong understanding of database design: SQL and NoSQL.
• Familiarity with database services: PostgreSQL, MySQL, DynamoDB, Elasticsearch.
• Experience with API design: GraphQL, RESTful.
• Experience in integrating APIs with third-party services (Google Cloud, Firebase, Payments, etc.).
• Knowledge of CI/CD and proficiency in writing unit tests.
• Ability to scale an application to support millions of users.
• Eager to enhance technical knowledge and explore/adopt new technologies.
• Strong analytical and problem-solving skills.
• Proactive, honest, and committed to self-improvement.
• Profound knowledge of servers, Nginx, caching strategies, HAProxy, and Varnish Cache.

If you have any English language certificates, please attach them to your CV.