Backend Developer (Node.js/NestJS)

ABOUT THE ROLE

We are looking for a highly skilled Backend Developer (Node.js/NestJS/Typescript...) to join our growing product & engineering team. You will play a key role in building scalable backend systems, developing RESTful APIs, and integrating with external advertising platforms such as TikTok Ads, Meta Ads, and Google Ads. This position is ideal for someone who is passionate about building modern web services and thrives in a fast-paced startup environment within the media, advertising, and digital marketing industry.

BENEFITS

• Competitive salary with performance bonuses;
• Exposure to real-world ad platforms and high-scale data processing;
• Opportunities to work with talented and passionate teammates;
• Flexible working hours and hybrid/remote options;
• Training support and career advancement opportunities

RESPONSIBILITIES

• Design, build, and maintain robust, scalable, and secure RESTful APIs using Node.js/NestJS + TypeScript;
• Integrate with external APIs from major ad platforms (Meta Ads, Google Ads, TikTok Ads, etc.);
• Collaborate with frontend developers, product managers, and DevOps to deliver new features;
• Optimize performance and ensure high reliability for campaign delivery and reporting tools;
• Implement unit tests, write clean and maintainable code following best practices;
• Participate in code reviews, system design, and architecture discussions;
• Monitor, troubleshoot, and debug issues in development and production environments;
• Contribute to CI/CD pipelines and deployment processes

REQUIREMENTS

• 2–5+ years of experience in backend development;
• Strong proficiency with Node.js, NestJS, and TypeScript;
• Experience building and consuming RESTful APIs;
• Solid understanding of relational and/or NoSQL databases (e.g., PostgreSQL, MongoDB);
• Experience with API security, rate limiting, authentication (JWT, OAuth2, etc.);
• Familiar with Git, GitFlow, Docker, and CI/CD tools;
• Good understanding of software design principles (SOLID, Clean Architecture, etc.);
• Ability to work independently and communicate effectively in English

Nice to Have

• Experience working with advertising APIs (Meta Business API, Google Ads API, TikTok Ads API);
• Knowledge of GraphQL or WebSockets;
• Familiarity with microservices or event-driven architecture (Kafka, RabbitMQ, etc.);
• Understanding of ad tech ecosystem and digital marketing workflows;
• Experience with monitoring tools like Prometheus, Grafana, Sentry, or similar

WORKING HOURS

• Monday: 8:00 AM – 12:00 PM, 1:30 PM – 5:30 PM;
• Tuesday to Friday: 9:00 AM – 12:00 PM, 1:30 PM – 5:30 PM;
• Saturday: 9:00 AM – 12:00 PM (Afternoon off);
• Address: 1st Floor, No. 97/7 Le Quang Dinh, Ward 14, Binh Thanh District, HCMC.

Note: Candidates sending application emails must attach their CV. After reading the information and learning about the company, if you find it suitable and want to apply, please send your CV Application Form. Tại đây Learn about Zafago, the company's cultural values  tại đây