Roopa

Junior Software Developer

Hyderabad, India 0+ yrs exp 82 · Excellent

About

Junior Software Developer with close to one year of professional experience in full-stack software development, with a strong foundation in data structures & algorithms (DSA), object-oriented programming (OOP), and system design. Hands-on experience building production web applications and scalable REST APIs using React, Next.js, Node.js, NestJS, Python, FastAPI, and Java/Spring Boot, including fault-tolerant background processing (retry/backoff). Comfortable with SQL databases, unit testing, debugging, Docker, AWS, CI/CD, and Agile development. Additional experience building AI/ML-powered application features as a complementary strength.

Skills & Expertise (35)

React Intermediate

8.3/10

Years Exp

Next.js Intermediate

8.3/10

Years Exp

Python Intermediate

8.3/10

Years Exp

FastAPI Intermediate

8.3/10

Years Exp

Node.js Intermediate

8.3/10

Years Exp

SQL Intermediate

6.5/10

Years Exp

Agile Intermediate

6.5/10

Years Exp

Git Intermediate

6.5/10

Years Exp

Java Intermediate

6.5/10

Years Exp

OpenAI API OOP System Design Salesforce Stripe OAuth ThreadPoolExecutor RBAC JWT Prompt Engineering RAG vLLM Azure OpenAI NestJS LLMs Docker AWS (EC2 AWS (S3 Data Structures & Algorithms RDBMS Redis MySql Postgresql REST APIs Spring Boot JavaScript

Work Experience

Junior Software Developer

Cantellat Software Pvt Ltd

Oct 2025 - Present

Built core frontend and backend modules for a multi-tenant recruitment platform, developing a React/Next.js front-end and a NestJS/PostgreSQL REST API spanning 37 Swagger-documented modules across a 46-table schema, with JWT/RBAC and Microsoft Entra ID SSO for enterprise authentication. Built and deployed a scalable 18-endpoint FastAPI service with API-key authentication and SSE streaming, containerizing services with Docker for reliable production deployment. Improved backend throughput with concurrent processing pipelines handling up to 50 requests per batch using ThreadPoolExecutor-based concurrency, retry logic, and token-limit-aware handling. Improved system reliability with a Redis-backed asynchronous background processing system (retry/backoff) and direct-to-S3 uploads, deployed via a Dockerized CI/CD pipeline (AWS CodeBuild, ECR, CodeDeploy). Validated production changes through unit testing, code reviews, and Postman-based API testing, using Git for version control and debugging application issues while collaborating with cross-functional teams in an Agile environment. Contributed backend modules to a Java/Spring Boot credit-risk system, implementing data processing logic and rule-based classification with the Drools rule engine. Debugged and resolved production issues in a workflow automation platform, improving system stability and API reliability; integrated OAuth-based third-party API connections (Stripe, Salesforce) for secure external integrations. Shipped 6 LLM-powered features and 5 production LLM-orchestrated workflows as a complementary AI capability, building on the existing Python/FastAPI backend.