kundan singh

Full-stack Software & AI Engineer

Mumbai, India 3+ yrs exp 88 · Excellent

About

Full-stack Software & AI Engineer with 3+ years building scalable, event-driven microservices (Java, Spring Boot, Spring WebFlux, Kafka, PostgreSQL) and full-stack applications (Angular, React, TypeScript), plus hands-on experience designing agentic AI pipelines for process automation – chaining OCR, LLM-based extraction (Ollama/Llama), and LLM-based routing/decisioning (Groq) into a model-agnostic workflow via Spring AI. Comfortable owning a problem end-to-end – from solution design and data modeling through to client-facing delivery – and a daily user of AI coding assistants to accelerate design, debugging, and delivery of production software.

Skills & Expertise (34)

Spring Boot Advanced

7.5/10

Years Exp

React Advanced

7.5/10

Years Exp

Angular Advanced

7.5/10

Years Exp

Java Advanced

7.0/10

Years Exp

RESTful APIs Advanced

7.0/10

Years Exp

Microservices Advanced

7.0/10

Years Exp

Typescript Advanced

7.0/10

Years Exp

Spring AI Intermediate

6.5/10

Years Exp

Postgresql Intermediate

6.5/10

Years Exp

MySql Intermediate

6.5/10

Years Exp

AWS Intermediate

6.5/10

Years Exp

RxJS Intermediate

6.5/10

Years Exp

Spring WebFlux Intermediate

6.5/10

Years Exp

Docker Intermediate

6.0/10

Years Exp

Redis Intermediate

6.0/10

Years Exp

Kafka Intermediate

6.0/10

Years Exp

Spring Cloud Intermediate

6.0/10

Years Exp

NgRx Intermediate

6.0/10

Years Exp

Signals Intermediate

6.0/10

Years Exp

Jenkins Intermediate

6.0/10

Years Exp

JPA Intermediate

6.0/10

Years Exp

Hibernate Intermediate

6.0/10

Years Exp

Transactions Intermediate

5.5/10

Years Exp

Indexing Intermediate

5.5/10

Years Exp

SonarQube Intermediate

5.5/10

Years Exp

JPQL Intermediate

5.5/10

Years Exp

SSR Intermediate

5.5/10

Years Exp

Flyway Intermediate

5.0/10

Years Exp

bootstrap Intermediate

5.0/10

Years Exp

Tailwind Intermediate

5.0/10

Years Exp

partitioning Intermediate

5.0/10

Years Exp

Maven Intermediate

5.0/10

Years Exp

Ollama Intermediate

5.0/10

Years Exp

Groq Beginner

4.5/10

0.5

Years Exp

Work Experience

Backend Developer

Kayana Technologies

Mar 2026 - Present

Owns end-to-end delivery of the platform’s recurring-ticket (Seasons) system — recurrence-rule modeling, occurrence validation, QR-based verification, and a PIN-protected Hide Ticket privacy option — across event creation, update, and check-in flows. Designed and built an event change-tracking and audit-logging system that flags field-level changes and triggers update-notification emails with visual diff highlighting for organizers and customers. Integrated Ryft (payments provider), including a recurring subscription payment model, and implemented card tokenization with Stripe; also delivered an end-to-end integration with STREAM food delivery provider and UrbanPiper (food delivery aggregator platform). Works across 30+ microservices on the core multi-tenant platform in a fast-paced, delivery-driven environment, owning features from API contract design through production rollout. Uses AI coding assistants (Claude, IDE-based LLM tooling) daily to accelerate debugging of reactive WebFlux code, review builder-pattern/JPQL logic, and speed up feature delivery – applying the same AI-augmented engineering practices to production systems.

Software Developer

Home First Finance Company

Oct 2022 - Mar 2026

Designed and delivered a Collection Management System and Legal & Technical Verification Portal, plus microservices for Loan Onboarding, eKYC, Lead Management, Visit Tracking, and Remote Payments, using Java (8, 11, 17) and Spring Boot. Implemented Kafka-based asynchronous event-driven workflows for background job processing and streaming data handling, improving system resilience and decoupling services under high load. Improved system performance by ˜65% under production load using Redis caching, optimized MySQL queries, indexing, and transactional integrity. Built full-stack modules end-to-end with Angular (17+), Signals, RxJS, and SSR — achieving 35% faster page loads and 40% reduction in UI defects. Led a team of four, coordinating across business stakeholders and engineers in an Agile Scrum environment. Led a full VAPT (Vulnerability Assessment and Penetration Testing) exercise across all company projects, coordinating remediation with engineering teams. Built a finance/banking reconciliation system in Java, Spring Boot to streamline and automate payment reconciliation across a specific set of partner banks.