Backend Engineer

**Key Responsibilities**

Core Backend Development
- Build high-performance, scalable backend services using Golang to support core AI product features
- Design, develop, and optimize APIs (RESTful and GraphQL) ensuring efficient frontend-backend interactions
- Participate in system architecture design to ensure stability, reliability, and scalability at enterprise scale
- Handle large-scale data flows and optimize distributed systems for peak performance
- Collaborate closely with frontend and AI agent teams to support rapid product iteration cycles
- Write clean, maintainable, and well-documented code following industry best practices

**Infrastructure Track (Option A)**

**Middleware & Core Systems Management**
- Maintain and optimize Manus's foundational middleware stack including databases, caching layers, logging systems, and message queues
- Design and manage Kubernetes cluster architecture for optimal resource utilization and fault tolerance
- Implement monitoring, alerting, and observability solutions across all infrastructure components
- Ensure high availability and disaster recovery capabilities for mission-critical systems

**E2B Cluster Operations**
- Oversee maintenance, configuration, and enhancement of Manus's E2B cluster infrastructure
- Drive capacity planning and scaling initiatives to meet growing demand
- Implement cost optimization strategies while maintaining performance standards
- Collaborate with DevOps teams to streamline deployment and operational workflows

**Business Systems Track (Option B)**

**Core Business Development**
- Develop and maintain user management systems, authentication, and authorization frameworks
- Build integrations with marketing automation platforms and operational tools
- Create robust APIs for customer onboarding, engagement tracking, and lifecycle management
- Implement analytics and reporting systems for business intelligence

**Payment & Monetization Platform**
- Design and develop comprehensive payment processing systems with multiple gateway integrations
- Build credit and points management systems with real-time balance tracking
- Implement coupon, discount, and promotional campaign management features
- Develop membership and subscription management capabilities with automated billing
- Ensure PCI compliance and implement fraud detection mechanisms

**Required Qualifications**
- Bachelor's degree or higher in Computer Science, Software Engineering, or related technical field
- Minimum 3 years of backend development experience with demonstrated expertise in Golang
- Strong understanding of microservices architecture and service orchestration tools (gRPC, Kubernetes)
- Proficiency in database design, optimization, and management (MySQL, PostgreSQL, MongoDB)
- Hands-on experience with distributed systems, message queues (Kafka, RabbitMQ), and caching technologies (Redis)
- Solid understanding of cloud platforms (AWS, GCP, or Azure) and containerization technologies
- Experience with CI/CD pipelines and infrastructure-as-code practices
- Strong problem-solving abilities and passion for learning new technologies

**Preferred Qualifications**
- Previous experience in backend development for AI, ML, or SaaS products
- Knowledge of infrastructure monitoring tools (Prometheus, Grafana, ELK stack)
- Familiarity with security best practices and compliance frameworks
- Experience working in international, distributed teams
- Contributions to open-source projects or technical community involvement
- Experience with performance optimization and large-scale system design

**What We Offer**
- Opportunity to work on cutting-edge AI technology with real-world impact
- Choice between infrastructure and business systems specialization based on your interests
- Collaborative, learning-focused environment with opportunities for professional growth
- Access to the latest tools, technologies, and professional development resources

About Manus AI