Software Fullstack Engineer

Cardboard, Inc; Bengaluru; On-site; INR 1,800,000 - 2,400,000; Full time

Job summary

Cardboard, Inc in Bengaluru is seeking a software engineer to develop and deploy features spanning the entire stack, from user-facing editor interfaces to backend services.

You will tackle browser challenges, live collaboration, and large media file handling, contributing to an AI-powered editing system and ensuring system performance and stability.

Qualifications

• Strong fundamentals with experience delivering complete features independently.
• Comfort across frontend, backend, and infrastructure domains.
• Experience with complex database queries, worker threads, and browser state management.
• Focus on code quality, responsiveness, and system efficiency.
• Ability to identify bottlenecks and UX issues, then resolve them.
• Preference for lean, autonomous environments where you set your own standards.

Responsibilities

• Develop and deploy features across the technology stack.
• Tackle browser challenges including live collaboration and handling large media files on client devices.
• Contribute to an AI-powered editing system enabling autonomous agents to edit projects.
• Maintain performance and stability across large-scale projects.
• Full-stack feature ownership from conception through shipping.
• Frontend development using modern browser APIs and state management.
• Backend systems and database query optimization.
• Infrastructure and deployment concerns.
• Performance profiling and optimization across all layers.
• Reliability and user experience improvements.

Skills

Full-stack development

Frontend development

Backend development

Database queries

Performance optimization

Browser state management

Code quality

Independent contributor

Job description

Batch: 2020/2021/2022/2023/2024/2025.

About the role:

• Develop and deploy features that span the entire technology stack, from user-facing editor interfaces to backend services
• Tackle demanding browser challenges including live collaboration, frame-perfect playback, and handling substantial media files on client devices
• Contribute to an AI-powered editing system that enables autonomous agents to make meaningful edits to projects
• Maintain system performance and stability across projects of significant scale and complexity

What you'll work on:

• Full-stack feature ownership from conception through shipping
• Frontend development using modern browser APIs and state management patterns
• Backend systems and database query optimization
• Infrastructure and deployment concerns
• Performance profiling and optimization across all layers
• Reliability and user experience improvements

What we're looking for:

• Deep software engineering fundamentals with demonstrated experience delivering complete features independently
• Comfort working across frontend, backend, and infrastructure domains without silos
• Willingness to engage with complex database queries, worker threads, and intricate browser state management
• A genuine focus on code quality, responsiveness, and system efficiency
• The ability to identify performance bottlenecks and user experience issues, then resolve them
• A preference for working in lean, autonomous environments where you set your own standards

Bonus skills:

• Background in media handling, video codecs, or similar domains
• Experience building real-time synchronization or offline-capable applications
• Familiarity with building on large language models