# Senior Fullstack Engineer [ Node.js Heavy + React ]

**Company:** [Okta](https://hotfix.jobs/companies/okta)
**Location:** Bengaluru, India
**Role:** Fullstack Engineering
**Experience:** 5+ years
**Skills:** Node.js, TypeScript, React, Postgres, MongoDB, Redis, Docker, AWS, Azure, Apm, Load Testing, Datadog, OpenTelemetry, Oauth 2.0, RBAC
**Posted:** 2026-09-09

> Senior full-stack engineer building scalable enterprise identity features across React and Node.js/TypeScript. Requires 5+ years of large-scale systems experience plus strong expertise in PostgreSQL, MongoDB, Redis caching, performance optimization, and API design.

## Job Description

## Responsibilities
- Design and build high-performance, customer-facing features end-to-end using React and Node.js/TypeScript, from concept through production deployment.
- Architect and optimize public and internal backend APIs for throughput, latency, reliability, and enterprise-scale usage.
- Implement and manage caching strategies to reduce response times and database pressure.
- Profile, diagnose, and resolve performance bottlenecks across React rendering, state management, database queries, and network I/O.
- Model and optimize data access patterns across PostgreSQL and MongoDB, selecting appropriate datastores and indexing strategies.
- Improve codebase and system architecture for reliability, maintainability, and scalability.
- Collaborate cross-functionally to design and deliver APIs and enterprise features.
- Mentor engineers on engineering practices, performance, and testing.
- Partner with product management and design to define new features and incorporate customer feedback.
- Participate in an on-call rotation.

## Requirements
- 5+ years of experience working on large-scale systems or services.
- Strong Node.js and TypeScript experience building backend services and APIs.
- Production experience building full-stack applications with React, including component architecture, state management, rendering performance, and modern tooling.
- Deep experience with PostgreSQL schema design, query optimization, indexing, and migrations.
- Production experience with MongoDB document modeling, aggregation pipelines, and scaling patterns.
- Hands-on experience designing and tuning Redis caching layers, including cache invalidation, write-through/write-behind patterns, and TTL management.
- Experience identifying and resolving performance issues with profiling tools, APM instrumentation, load testing, and capacity planning.
- Experience with Docker and cloud environments.
- Strong communication, collaboration, and mentoring skills.

## Nice to Have
- Experience with RBAC systems, multi-tenant platforms, or identity and access management products.
- Experience designing and shipping APIs at scale, including versioning, rate limiting, schema design, and SDK readiness.
- Experience with event-driven architectures, pub/sub systems, or asynchronous job processing.
- Familiarity with Datadog, New Relic, OpenTelemetry, or similar observability and performance tools.
- Experience with SSO, OIDC, OAuth 2.0, and enterprise security patterns.
- AWS or Azure experience.

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