Backed Engineer

Soul Ai; Chennai; On-site; INR 800,000 - 1,500,000; Full time

Job summary

Soul AI in Chennai invites a Backend Engineer to design, build, and scale robust APIs and services. You will collaborate with frontend, DevOps, and product teams to deliver high-impact backend systems powering core platform features.

The role emphasizes API design, secure coding, database optimization, tests, and CI/CD deployments in a cloud environment. If you have strong experience with Node.js, Python, Java, or Go and modern frameworks, join us to ship reliable, scalable solutions.

Qualifications

• Proficiency in one or more backend languages: Node.js, Python, Java, or Go.
• Experience with backend frameworks like Express/NestJS, Django/FastAPI, Spring Boot, or Gin/Fiber.
• Strong understanding of relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) databases.
• Expertise in API design, including REST, GraphQL, pagination, versioning, and error handling.
• Familiarity with authentication protocols such as JWT, OAuth2.
• Solid grasp of security principles: XSS, CSRF, SQL Injection, and secure password handling.
• Experience with Docker for containerization.
• Understanding of caching (Redis, CDN), background processing (BullMQ, Celery), and job queues.
• Working knowledge of Git workflows and code review practices.
• Comfortable with CI/CD pipelines and automated deployments using GitHub Actions, Jenkins, or GitLab CI.

Responsibilities

• Design, build, and maintain robust, scalable RESTful or GraphQL APIs.
• Architect systems with clear data models and clean separation of concerns.
• Optimize database performance through effective indexing, query tuning, and caching strategies.
• Implement security best practices including authentication, authorization, rate limiting, and input validation.
• Write unit, integration, and end-to-end tests to ensure system correctness and reliability.
• Deploy, monitor, and maintain services in staging and production environments using CI/CD pipelines and observability tools.
• Collaborate with cross-functional teams including frontend, DevOps, and product to ship high-quality features fast.
• Troubleshoot performance bottlenecks, memory leaks, and outages in production environments.

Skills

Node.js

Python

Java

Go

Express/NestJS

Django/FastAPI

PostgreSQL

MySQL

MongoDB

Redis

REST & GraphQL API design

JWT/OAuth2

Security best practices

Docker

Kubernetes

Git workflows

CI/CD (GitHub Actions/Jenkins/GitLab)

AWS/GCP/Azure

Prometheus/Grafana

Kafka/RabbitMQ

WebSockets

Education

Bachelor's or Master's in Computer Science, Software Engineering, or related field

Tools

Docker

Kubernetes

Prometheus

Grafana

ELK Stack

Datadog

Sentry

Kafka

Job description

Soul AI is a pioneering company founded by IIT Bombay and IIM Ahmedabad alumni, with a strong founding team from IITs, NITs, and BITS.

We specialize in delivering high-quality human-curated data and AI-first scaled operations services.

Based in San Francisco and Hyderabad, we are a fast-moving team on a mission to build AI for Good, driving innovation and societal impact.

Role Overview

We are looking for a Backend Engineer who can architect and build scalable, performant, and secure APIs and services. You will work closely with frontend, DevOps, and product teams to deliver high-impact backend systems that power critical features across our platform. The ideal candidate has deep experience with backend frameworks, databases, API design, and cloud infrastructure "” and knows how to build reliable systems that scale.

Responsibilities

• Design, build, and maintain robust, scalable RESTful or GraphQL APIs.
• Architect systems with clear data models and clean separation of concerns.
• Optimize database performance through effective indexing, query tuning, and caching strategies.
• Implement security best practices including authentication, authorization, rate limiting, and input validation.
• Write unit, integration, and end-to-end tests to ensure system correctness and reliability.
• Deploy, monitor, and maintain services in staging and production environments using CI/CD pipelines and observability tools.
• Collaborate with cross-functional teams including frontend, DevOps, and product to ship high-quality features fast.
• Troubleshoot performance bottlenecks, memory leaks, and outages in production environments.

Required Skills:

• Proficiency in one or more backend languagesNode.js (JavaScript/TypeScript), Python, Java, or Go.
• Experience with backend frameworks like Express/NestJS, Django/FastAPI, Spring Boot, or Gin/Fiber.
• Strong understanding of relational (PostgreSQL, MySQL) and NoSQL (MongoDB, Redis) databases.
• Expertise in API design, including REST, GraphQL, pagination, versioning, and error handling.
• Familiarity with authentication protocolsJWT, OAuth2, session handling.
• Solid grasp of security principlesXSS, CSRF, SQL Injection, secure password handling.
• Experience with Docker for containerization and deploying microservices.
• Understanding of caching (Redis, CDN), background processing (e.g., BullMQ, Celery), and job queues.
• Working knowledge of Git workflows and code review practices.
• Comfortable with CI/CD pipelines and automated deployments using tools like GitHub Actions, Jenkins, or GitLab CI.

Nice to Have:

• Experience with cloud platformsAWS (EC2, S3, RDS, Lambda), GCP, or Azure.
• Familiarity with Kubernetes or container orchestration for service scaling.
• Hands-on with monitoring/logging toolsPrometheus, Grafana, ELK stack, Datadog, Sentry.
• Experience building event-driven architectures using Kafka, RabbitMQ, or pub-sub systems.
• Exposure to real-time systems using WebSockets, Socket.io, or Server-Sent Events.
• Prior work on serverless architectures using AWS Lambda or GCP Functions.
• Basic experience working with ETL pipelines or streaming data.
• Integration experience with GenAI/ML inference layers is a plus.

Educational Qualifications:

• Bachelors or Masters degree in Computer Science, Software Engineering, or a related technical discipline.
• Equivalent practical experience or contributions to open-source backend projects are also considered.