Javascript Developer

Recro; Dadri; On-site; INR 900,000 - 1,400,000; Full time

Job summary

Recro in India seeks a Senior Software Engineer to design and build high-performance backend systems. You will optimize data pipelines across SQL and NoSQL databases, and architect agentic workflows to drive AI-driven learning and operational processes.

You will contribute to backend system design, APIs, and scalable microservices using Node.js, with MongoDB and SQL databases, while collaborating with product managers, data scientists, and frontend engineers to deliver robust solutions.

Qualifications

• 4+ years hands-on software development experience, backend focus
• Strong backend engineering fundamentals and design skills
• Experience with scalable RESTful APIs and microservices

Responsibilities

• Backend system design: architect, build and maintain scalable RESTful APIs and microservices
• Database architecture & optimization for MongoDB and SQL
• Agentic workflows: implement AI-driven autonomous workflows
• Scalability & performance: identify bottlenecks and optimize queries for high concurrency
• Collaboration & code quality: participate in code reviews and work with PMs, data scientists, and frontend engineers

Skills

Backend systems design

Asynchronous programming

Microservices architecture

RESTful APIs

Tools

Node.js

MongoDB

SQL

LangChain

LlamaIndex

Job description

wWe are looking for a highly skilled Senior Software Engineer to join our engineering team. In this role, you will design and build high-performance backend systems, optimize data pipelines across SQL and NoSQL databases, and architect Agentic Workflows to drive automated, AI-driven learning and operational processes

Key Responsibilitie

• sBackend System Design: Architect, build, and maintain scalable, robust, and low-latency RESTful APIs and microservices using Node.js
• .Database Architecture & Optimization: Design and optimize data models across both MongoDB and SQL databases (PostgreSQL/MySQL), ensuring high availability, speed, and query performance
• .Agentic Workflows & AI Integration: Implement and orchestrate autonomous AI agent workflows (using frameworks like LangChain, LlamaIndex, or custom agentic architectures) to automate complex operational and learning tasks
• .Scalability & Performance: Identify performance bottlenecks, optimize database queries, and ensure seamless handling of high concurrent traffic loads typical of our student base
• .Collaboration & Code Quality: Participate in code reviews, write clean and unit-tested code, and collaborate closely with product managers, data scientists, and frontend engineers

Qualifications & Requirement

• sTotal Experience: ~4 years of hands-on software development experience (minimum 2+ years in backend engineering)
• .Core Tech Stack
• :Node.js: Deep expertise in building asynchronous microservices, frameworks (Express.js/NestJS), and event-driven architecture
• .Databases: Strong hands-on experience with both MongoDB (NoSQL modeling, aggregation framework) and SQL (schema design, indexing, complex query tuning)
• .Agentic Workflows: Functional experience or active exposure to building LLM-driven agents, multi-agent coordination, tool-calling, or workflow automation platforms