Agent UI - Full Stack - Senior Software Engineer II

Sumo Logic is a cloud-native SaaS data analytics platform that addresses complex observability and security challenges. They are seeking a Senior Full Stack Software Engineer II to design and build interactive user experiences and backend systems, ensuring system reliability and scalability while collaborating with cross-functional teams.

Responsibilities:

• Design and build agent-driven UI experiences that enable users to interact with AI agents, tools, and workflows in intuitive and transparent ways
• Develop backend services for MCP and tool orchestration, including tool registries, structured tool descriptions, context injection, and agent execution pipelines
• Implement and maintain APIs and microservices that support agent communication, session management, memory handling, and observability integrations
• Define and standardize tool schemas and metadata contracts to ensure consistent, secure, and scalable tool invocation across heterogeneous systems
• Collaborate cross-functionally with ML engineers, product managers, UX designers, and platform teams to deliver end-to-end AI-powered capabilities
• Ensure system reliability and scalability through automated testing, monitoring, performance optimization, and production readiness best practices
• Design cloud-native architectures on AWS, leveraging containerization, CI/CD pipelines, and distributed systems patterns
• Own features end-to-end, from technical design and implementation to deployment, monitoring, and iterative improvement
• Continuously improve usability and developer experience, making agent capabilities explainable, observable, and controllable for end users

Requirements:

• B.Tech, M.Tech, or equivalent experience in Computer Science or a related field
• 4–6+ years of industry experience building production-grade software systems with end-to-end ownership
• Strong proficiency in: Frontend technologies (React, TypeScript, modern UI frameworks), Backend development (Python, Java, or similar), RESTful APIs and microservices architecture
• Experience designing and building scalable backend systems in cloud environments (AWS preferred)
• Working knowledge of LLM applications, agent systems, or MCP-like architectures
• Experience designing well-defined APIs and service contracts, including schema validation and versioning
• Familiarity with distributed systems concepts, observability, logging, and monitoring
• Strong understanding of software engineering best practices: testing, CI/CD, code reviews, performance tuning
• Excellent communication skills and ability to collaborate across disciplines
• Experience building agent UI systems, chat-based workflows, or AI-assisted product experiences
• Familiarity with Model Context Protocol (MCP) or similar agent communication standards
• Experience designing tool registries, plugin systems, or extensible integration frameworks
• Exposure to LLM Ops, agent orchestration frameworks, or prompt/tool evaluation systems
• Experience working in high-scale SaaS environments with large data volumes
• Mentorship experience guiding junior engineers and influencing engineering best practices
• Contributions to open-source projects or technical publications in AI systems, developer platforms, or distributed architectures