Senior Backend Developer

freeC's Client

• Design and build scalable backend systems using Java, C#, Node.js, and modern architectural principles (OOP, DDD, REST, GraphQL, Microservices).
• Work with SQL/NoSQL databases, caching (Redis), automated testing, CI/CD pipelines, Docker, and cloud platforms (AWS, GCP, Azure).
• Collaborate across teams to define requirements, review code, and continuously improve system performance and team productivity

Job requirement

• Diploma: Bachelor's degree or higher with major in Computer Science, Software Engineering or Information Technology
• Minimum of 4+ years of experience in backend development or related software engineering roles
• Proficient in at least one backend programming language such as Java, C#, Node.js, or Python
• Strong understanding of computer science fundamentals: OOP, SOLID principles, Clean Code, DRY, IoC and system design patterns (MVC, DDD, TDD)
• Experience working with SQL and NoSQL databases, and caching such as Redis.
• Familiarity with designing and implementing RESTful APIs, GraphQL, WebSockets, and micro services architecture.
• Hands-on experience with unit testing, integration testing, and endto-end testing methodologies.
• Proficiency in using Docker, K8S and setting up CI/CD pipelines for efficient deployment workflows
• Experience working with cloud platforms such as AWS, GCP, or Azure.
• Strong logical thinking and problem-solving mindset in complex technical contexts.
• High motivation to explore, research, and apply the latest backend trends and best practices.
• Eagerness and discipline in self-learning, with the ability to quickly grasp new technologies and concepts.

Nice to have

• GPA: > 80%
• Experience in developing full-stack or front-end
• Experienced in working with distributed data systems or technologies like Apache Kafka, RabbitMQ.
• Having experience as a team leader is a plus
• Open-minded and proactive in communication, with the ability to explain technical ideas clearly across teams

• Bonus: 13th month bonus + Outstanding individual bonus
• Basic salary increases once time/per year, and income levels increase according to the productivity and experience of staff contributing reality to the project
• Company trip
• Healthy check
• Company Team building