Backend Engineer

We're seeking a skilled Backend Engineer to join our growing team and drive the development of Manus's core infrastructure and business systems. This role offers the opportunity to work across two specialized tracks: infrastructure engineering and business application development, allowing you to shape both the technical foundation and user-facing features of our AI-powered platform.

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

Experience with payment processing systems, financial transactions, or fintech applications

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

Manus is a general AI agent that bridges minds and actions: it doesn't just think, it delivers results. Manus excels at various tasks in work and life, getting everything done while you rest.

At Manus AI, we offer a highly collaborative and innovative environment where experts across engineering, research, and business come together to push the boundaries of AI applications. If you're passionate about cutting-edge technology and making a real impact, we’d love to hear from you!

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