Shalini A

Java Backend Engineer

Bengaluru, India 2+ yrs exp 85 · Excellent

About

Java Backend Engineer with 2+ years of production experience designing and shipping microservices, event-driven pipelines, and distributed systems at Lumen Technologies (Fortune 200). Deep expertise in Spring Boot 3, REST API design, Kafka-based async messaging, Docker/Kubernetes CI/CD, and AWS cloud infrastructure. Proven ability to deliver measurable system improvements — including 60% latency reduction, 90% deployment automation, high uptime across distributed backend workloads. Strong foundation in OOP, SOLID principles, system design, and distributed architecture patterns (Saga, CQRS, Circuit Breaker). Actively practicing DSA and system design for competitive engineering roles.

Skills & Expertise (64)

Spring Boot Intermediate

7.5/10

Years Exp

Microservices Intermediate

7.5/10

Years Exp

Rest API Intermediate

7.5/10

Years Exp

Java Intermediate

7.5/10

Years Exp

RBAC Intermediate

7.0/10

Years Exp

SQL Intermediate

7.0/10

Years Exp

JUnit 5 Intermediate

7.0/10

Years Exp

Mockito Intermediate

7.0/10

Years Exp

Agile Intermediate

7.0/10

Years Exp

Git Intermediate

7.0/10

Years Exp

GitHub Intermediate

7.0/10

Years Exp

Postman Intermediate

7.0/10

Years Exp

Swagger Intermediate

7.0/10

Years Exp

Jira Intermediate

7.0/10

Years Exp

VS Code Intermediate

7.0/10

Years Exp

Problem Solving Intermediate

7.0/10

Years Exp

Analytical Thinking Intermediate

7.0/10

Years Exp

Cross-Functional Collaboration Intermediate

7.0/10

Years Exp

Technical Communication Intermediate

7.0/10

Years Exp

Ownership Mindset Intermediate

7.0/10

Years Exp

Debugging & troubleshooting Intermediate

7.0/10

Years Exp

code reviews Intermediate

7.0/10

Years Exp

Agile Collaboration Intermediate

7.0/10

Years Exp

Kafka Intermediate

7.0/10

Years Exp

API versioning Intermediate

7.0/10

Years Exp

Contract Testing Intermediate

7.0/10

Years Exp

Jenkins Intermediate

7.0/10

Years Exp

MySql Intermediate

7.0/10

Years Exp

MongoDb Intermediate

7.0/10

Years Exp

Hibernate Intermediate

7.0/10

Years Exp

Redis Intermediate

7.0/10

Years Exp

System Design Intermediate

7.0/10

Years Exp

SOLID principles Intermediate

7.0/10

Years Exp

OOP Intermediate

7.0/10

Years Exp

AWS Intermediate

7.0/10

Years Exp

Kubernetes Intermediate

7.0/10

Years Exp

Docker Intermediate

7.0/10

Years Exp

JWT Intermediate

7.0/10

Years Exp

OAuth 2.0 Intermediate

7.0/10

Years Exp

TLS Intermediate

6.5/10

Years Exp

Python Intermediate

6.5/10

Years Exp

SSL Intermediate

6.5/10

Years Exp

Load Balancing Intermediate

6.0/10

Years Exp

JavaScript Intermediate

6.0/10

Years Exp

HTML5 Intermediate

6.0/10

Years Exp

CSS3 Intermediate

6.0/10

Years Exp

Typescript Intermediate

6.0/10

Years Exp

React.js Intermediate

6.0/10

Years Exp

Prometheus Intermediate

6.0/10

Years Exp

Grafana Intermediate

6.0/10

Years Exp

ELK Stack Intermediate

6.0/10

Years Exp

JMeter Intermediate

6.0/10

Years Exp

Hashing Intermediate

6.0/10

Years Exp

Splunk Intermediate

6.0/10

Years Exp

DNS Intermediate

6.0/10

Years Exp

HTTPS Intermediate

6.0/10

Years Exp

HTTP Intermediate

6.0/10

Years Exp

IP Intermediate

6.0/10

Years Exp

TCP Intermediate

6.0/10

Years Exp

SDLC Intermediate

6.0/10

Years Exp

Data Structures & Algorithms Intermediate

6.0/10

Years Exp

Design Patterns Intermediate

6.0/10

Years Exp

Cursor Intermediate

6.0/10

Years Exp

Scrum

Work Experience

Software Development Engineer

Lumen Technologies

Jan 2024 - Present

Engineered Java 17/Spring Boot 3 microservices for the Lumen Private Cloud platform, owning end-to-end design from API contract to deployment; reduced API latency from 420ms to 168ms (60%) via Redis caching, Hibernate query optimization. Developed Python-based automation scripts and utilities to streamline backend workflows, API integrations, and operational processes. Designed RESTful APIs following OpenAPI 3.0 specs across 4 services; applied API versioning and contract testing to reduce inter-service integration defects by 35% and cut inter-service latency by 30%. Architected Kafka-based event-driven messaging system with 3 topics and 2 consumer groups, fully decoupled 4 downstream microservices, and implemented dead-letter queues (DLQ) for zero message loss. Built Jenkins CI/CD pipelines with Docker containerization and Kubernetes orchestration (Helm charts), cutting release cycle from 2 days to 4 hours and eliminating 90% of manual deployment effort across 3 services. Optimized MySQL indexes (composite, covering) and MongoDB aggregation pipelines, reducing average query execution time from 850ms to 510ms (40%) and halving overall API response latency. Integrated AWS services — EC2 (auto-scaling groups), S3 (presigned URLs), RDS (Multi-AZ MySQL), Lambda (async event triggers), and SQS (message fan-out) — achieving 99.9% uptime for all backend workloads. Implemented JWT + OAuth 2.0 secure authentication across services, TLS/SSL termination at the API Gateway, and role-based access control (RBAC) using Spring Security 6. Owned API compatibility during legacy Java monolith-to-React migration; applied backward-compatible versioning preventing regression in 100% of dependent services. Delivered unit and integration test suites with JUnit 5, Mockito, and MockMvc; maintained 85%+ code coverage and introduced mutation testing to surface untested edge cases. Collaborated in Agile (2-week sprints) with a team of 8 engineers; led code reviews for 3 junior developers, drove technical design discussions, and documented 15+ API specs in Swagger/OpenAPI.

Education

B.E. Computer Science & Business Systems - Sri Eshwar College of Engineering

2020 - 2024 · Afghanistan

Certifications

No certifications added yet

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Profile Score Breakdown

📷 Photo 10/10

📄 Resume 10/10

💼 Job Title 10/10

✍️ Bio 10/10

🛠️ Skills 20/20

🎓 Education 10/10

⏱️ Experience 10/15

💰 Rate 0/5

🏆 Certs 0/5

✅ Verified 5/5

Total Score 85/100

Profile Overview

Member sinceJun 2026

Availability Details

Visa Status

Citizen

Relocation

Open to Relocation

Skills (64)

Click a skill to find developers with the same skill

Spring Boot Microservices Rest API Java RBAC SQL JUnit 5 Mockito Agile Git +54 more

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