Back End Engineer

Position
: Senior/Middle Back-End Engineer

Department

: Software Development Department 

Job Type

: Full-time 

Location

: CT Group Corporation, 117 Nguyễn Đình Chiểu, Ward 6, District 3, Ho Chi Minh City, Vietnam 

Job Objectives:

The
Senior Backend Engineer
will play a critical role in architecting, developing, and maintaining the
Ground Controller System
that supports real-time operations and large-scale data processing. This role emphasizes
backend scalability, high availability, and system resilience
, ensuring the platform can support mission-critical workloads. The engineer will also help establish best practices in system design, code quality, security, performance optimization, and team knowledge-sharing.

Key Responsibilities

• Design, implement, and maintain highly available and scalable backend services for the Ground Controller System.
• Deliver end-to-end features

for a work-management web application - translate business requirements into scalable technical designs and ship iteratively.
- Build and maintain RESTful APIs
and real-time communication channels (
WebSockets, gRPC, Server-Sent Events
) to support UAV and ground control operations.
- Integrate backend services seamlessly with front-end systems and external UAV/IoT interfaces.
- Model and optimize SQL and NoSQL databases

(e.g., indexing, caching, migrations) to ensure data integrity, performance, and synchronization.
- Optimize performance and scalability

using profiling, query tuning, Core Web Vitals improvements, frontend bundle management, and backend service scaling.
- Ensure security and privacy

across the stack, including SSO (OAuth2/OIDC/SAML), RBAC/ABAC, input sanitization, rate limiting, audit logging, and secrets management.
- Maintain quality through testing

: implement unit, integration, end-to-end; automate with CI/CD pipelines to ensure reliable delivery.
- Mentor and support junior engineers

, sharing knowledge, providing technical guidance, and fostering a collaborative team culture.
- Stay current with modern technologies

and development practices; propose and drive improvements to enhance product quality and developer experience

Required Qualifications and Skills

Education & Experience

• Bachelor's degree in Computer Science, Software Engineering, or a related field.
• Minimum of 3–5 years of experience as a Back-End Developer in a professional setting.
• Experience with backend programming languages such as
  Python/JavaScript

and backend frameworks such as
Flask, Django,

or similar.
- Strong understanding of
SQL

and
NoSQL

databases, including
MySQL, PostgreSQL, MongoDB, and Redis.
- Hands-on experience with
containerization and orchestration

tools like
Docker and Kubernetes

.
- Practical experience with CI/CD pipelines (e.g., Jenkins, GitLab CI)
- Experience with message queues (e.g., RabbitMQ, Kafka) and caching mechanisms.
- (Preferred) Familiarity with cloud platforms such as AWS, Azure, or Google Cloud.
- Knowledge of version control systems like
Git

and related workflows
- Background in real-time, distributed, or IoT/UAV systems is a strong plus.

Soft Skills

• Strong analytical and system design skills for creating logical and efficient solutions.
• Strong problem-solving mindset and ability to work independently on complex tasks.
• Excellent collaboration and communication skills with cross-functional teams (DevOps, QA, AI/ML).
• Proactive, system-oriented thinking with a strong sense of responsibility for product quality.
• Ability to manage multiple tasks and meet deadlines in a fast-paced environment.
• Leadership skills to guide and mentor junior team members effectively.

Benefits

• Competitive salary based on skills and experience.
• Performance-based bonuses and rewards for outstanding contributions.
• Opportunities to work on large-scale, diverse projects developed by the company.
• Professional working environment with a transparent and respectful culture.
• Access to training programs, certifications, and career development opportunities.
• Comprehensive health insurance and other employee benefits as per company policy