Senior Software Engineer (SDE 3) — Frontend

Location: Noida, UP, in

Company Description

About MastersIndia

MastersIndia is a leading technology company building compliance-focused SaaS products that simplify complex business processes like GST, e-invoicing, and e-way bills. We work at scale, handle mission-critical systems, and believe in strong engineering ownership.

Job Description

We are looking for a Senior Software Engineer (SDE 3) to design, build, and scale modern SaaS products. This role goes beyond feature delivery. You will:

• shape system architecture
• build intelligent product experiences
• leverage AI to improve both product capabilities and developer productivity
• mentor engineers and drive engineering excellence

You will work closely with product, design, data, and platform teams to deliver reliable, scalable, and intuitive solutions.

Key Responsibilities

AI-Enabled Product & System Engineering

• Design and build scalable, maintainable, and high-performance systems
• Own features end-to-end: design → development → deployment → monitoring
• Build intelligent product features using LLMs and AI services
• Develop user experiences & AI-powered workflows such as:
  • smart automation, data extraction, conversational interfaces & copilots
  • summarization & insights
  • anomaly detection & intelligent alerts
• Ensure responsible AI usage, privacy, and reliability

Collaboration & Leadership

• Mentor engineers and raise the technical bar across teams
• Collaborate with product managers and designers to shape solutions
• Lead technical discussions and influence engineering decisions
• Promote a culture of ownership, quality, and continuous improvement

Required Skills & Experience

Core Engineering

• 5+ years of software development experience building modern web applications
• Strong expertise in React & TypeScript and component-driven architecture
• Experience building and scaling production SaaS applications
• Experience with design systems and UI frameworks (Ant Design, Tailwind, MUI, or similar)
• Strong understanding of API integration, asynchronous data handling, and state management
• Solid fundamentals in system design, performance optimization, and browser rendering
• Experience improving application performance, accessibility, and responsiveness
• Familiarity with frontend testing, debugging, and maintainability best practices

AI & Modern Development

• Experience integrating AI/LLM APIs into production systems
• Understanding of prompt design, response handling, and AI reliability patterns
• Experience building AI-powered product features or workflows
• Familiarity with AI-assisted developer tools and workflows

Scalability & Reliability

• Experience designing high-availability and fault-tolerant systems
• Observability: logging, monitoring, tracing
• Performance optimization and debugging production issues

Good to Have

• Experience with event-driven architectures and streaming systems
• Knowledge of search, analytics, or data pipelines
• Experience designing multi-tenant SaaS architectures
• Security & compliance best practices for enterprise software
• Experience with usage-based billing, audit trails, or compliance systems