Swaraj Kaushal

Software Engineer

Bengaluru, India Remote Full-time 2+ yrs exp 85 · Excellent

About

Backend Developer with 2+ years of experience in building scalable, high-performance microservices using Java, Spring Boot, and event-driven architecture. Proven expertise in designing distributed systems with Apache Kafka, Redis, and PostgreSQL, handling high-volume transactions with low latency. Experienced in containerization and cloud-native deployments using Docker and Kubernetes (K8s) with Helm, enabling scalable and resilient applications. Skilled in integrating Generative AI capabilities, including Retrieval-Augmented Generation (RAG), Large Language Models (LLMs), and AI agents using Spring AI and Google ADK to build intelligent, data-driven systems. Strong focus on system design, performance optimization, and secure application development (JWT, OAuth2, TLS). Passionate about building next-generation backend systems combining Cloud, Microservices, and AI technologies.

Skills & Expertise (54)

Java 17 Advanced

7.8/10

2.5

Years Exp

Spring Boot 3.x Advanced

7.8/10

2.5

Years Exp

React.js Advanced

7.5/10

2.5

Years Exp

RESTful APIs Advanced

7.5/10

2.5

Years Exp

Microservices Advanced

7.5/10

2.5

Years Exp

JavaScript Intermediate

6.8/10

2.5

Years Exp

AWS Intermediate

6.5/10

2.5

Years Exp

Postgresql Intermediate

6.5/10

2.5

Years Exp

REDUX Intermediate

6.5/10

2.5

Years Exp

HTML5 Intermediate

6.5/10

2.5

Years Exp

Git Intermediate

6.5/10

2.5

Years Exp

CSS3 Intermediate

6.5/10

2.5

Years Exp

Docker Intermediate

6.5/10

2.5

Years Exp

Kubernetes Intermediate

6.5/10

2.5

Years Exp

Apache Kafka Intermediate

6.5/10

2.5

Years Exp

SQL Intermediate

6.5/10

2.5

Years Exp

Typescript Intermediate

6.3/10

2.5

Years Exp

Jenkins Intermediate

6.0/10

2.5

Years Exp

Metrics Intermediate

6.0/10

2.5

Years Exp

bootstrap Intermediate

6.0/10

2.5

Years Exp

LINUX Intermediate

6.0/10

2.5

Years Exp

Logging Intermediate

6.0/10

2.5

Years Exp

Monitoring Intermediate

6.0/10

2.5

Years Exp

Resilience4j Intermediate

6.0/10

2.5

Years Exp

Elasticsearch Intermediate

6.0/10

2.5

Years Exp

Redis Intermediate

6.0/10

2.5

Years Exp

MongoDb Intermediate

6.0/10

2.5

Years Exp

MySql Intermediate

6.0/10

2.5

Years Exp

Spring Security Intermediate

6.0/10

2.5

Years Exp

JWT Intermediate

6.0/10

2.5

Years Exp

OAuth 2.0 Intermediate

6.0/10

2.5

Years Exp

Maven Intermediate

6.0/10

2.5

Years Exp

Jira Intermediate

6.0/10

2.5

Years Exp

JUnit Intermediate

6.0/10

2.5

Years Exp

Mockito Intermediate

6.0/10

2.5

Years Exp

Agile Intermediate

6.0/10

2.5

Years Exp

SDLC Intermediate

6.0/10

2.5

Years Exp

Hibernate Intermediate

6.0/10

2.5

Years Exp

Spring Cloud Intermediate

6.0/10

2.5

Years Exp

Data Structures & Algorithms Intermediate

6.0/10

2.5

Years Exp

Java 21 Intermediate

5.8/10

2.5

Years Exp

Flyway Intermediate

5.5/10

2.5

Years Exp

Keycloak Intermediate

5.5/10

2.5

Years Exp

SonarQube Intermediate

5.5/10

2.5

Years Exp

Spring AI Intermediate

5.5/10

2.5

Years Exp

LLM Integration Intermediate

5.0/10

2.5

Years Exp

Prompt Engineering Intermediate

4.5/10

2.5

Years Exp

Tool Calling Intermediate

4.5/10

2.5

Years Exp

AI Agents Intermediate

4.5/10

2.5

Years Exp

Semantic Search Intermediate

4.5/10

2.5

Years Exp

Embeddings Intermediate

4.5/10

2.5

Years Exp

PGvector Intermediate

4.5/10

2.5

Years Exp

Vector Databases Intermediate

4.5/10

2.5

Years Exp

RAG Intermediate

4.5/10

2.5

Years Exp

Work Experience

Backend Developer

Impacto Digifin Technology Pvt. Ltd.

Jun 2024 - Present

Designed and developed 20+ RESTful microservices in Java 17 / Spring Boot 3.x with sub-150 ms latency, supporting 15K+ concurrent sessions. Architected an event-driven engine processing 50K+ scans/job through batch splitting and parallel orchestration, reducing manual compliance effort by 60%. Optimized PostgreSQL queries and indexing, reducing DB load by 40% and improving query speed by 85%. Built fault-tolerant services with Resilience4j circuit breakers and Kafka DLQ/retry, adding structured logging, metrics, and monitoring for end-to-end observability. Leveraged AI-assisted development tools (Claude, GitHub Copilot) to accelerate feature delivery and debugging, improving code quality across backend services. Collaborated with frontend, product, design, and QA teams to deliver scalable end-to-end features, translating business requirements into production-ready solutions.

Java Developer Intern

Impacto Digifin Technology Pvt. Ltd.

Mar 2024 - May 2024

Built scalable Spring Boot REST APIs with validation, exception handling, and increased test coverage from 0% to 95% using JUnit/Mockito. Developed an event-driven async upload pipeline and a Spring Batch Mongo→Elasticsearch sync, enabling sub-second search and 1 GB file uploads without blocking the request path. Reduced folder-browse latency by replacing N+1 queries with MongoDB $lookup aggregations, implementing Materialized Views for precomputed file metadata, and using Redis caching for faster permission checks.