Job Description

SDE-3 — Backend Engineer

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Location: Mumbai (preferred) / Remote, India

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Employment Type: Full time

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Experience: 6–10 Years

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About the Role

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We are looking for a Senior Backend Engineer (SDE-3) to own the design, scalability, and reliability of Pepper‘s backend systems. You will operate at the intersection of engineering depth and product thinking — leading architecture decisions, building AI-native backend infrastructure, and mentoring a growing engineering team. This role is for someone who thinks in systems, not just services, and who treats agentic AI patterns as a natural part of up-to-date backend design.

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Key Responsibilities

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Design and own backend systems and services that are scalable, secure, and highly available
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Lead technical architecture decisions — service decomposition, data modelling, API design, and system reliability
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Build and operate AI-native backend infrastructure — LLM orchestration layers, agentic pipelines, RAG systems, tool-use frameworks, and evaluation loops
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Define and enforce backend engineering standards, code quality practices, and security patterns
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Collaborate with product, frontend, and data teams to deliver complex, cross-functional features
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Own performance at scale — query optimisation, caching strategies, infrastructure bottlenecks
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Drive incident response, root cause analysis, and reliability improvements
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Mentor SDE-1 and SDE-2 engineers, grow technical depth across the team
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Must-Have Skills

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Expert-level Node.js backend development — services, APIs, event-driven architecture
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TypeScript — solid typing across backend services and shared libraries
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Deep experience with MySQL, PostgreSQL, and Redis — schema design, query optimisation, indexing, caching
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REST APIs and microservices architecture — design patterns, versioning, contract testing
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Solid understanding of system design — distributed systems, consiste

📌 Sde 3 Backend Mumbai
🏢 Pepper
📍 Mumbai