Java Full Stack Developer

About Kadel Labs:

Kadel Labs is a leading IT services company delivering top-quality technology solutions since 2017, focused on enhancing business operations and productivity through tailored, scalable, and future-ready solutions. With deep domain expertise and a commitment to innovation, we help businesses stay ahead of technological trends.

As a CMMI Level 3 and ISO 27001:2022 certified company, we ensure best-in-class process maturity and information security, enabling organizations to achieve their digital transformation goals with confidence and efficiency.

Job Title: Senior Software Engineer -Java Full Stack

Location: Bangalore

Experience: 3+ Years

Job Description:

We are looking for a Full Stack Developer with 3–5 years of hands-on experience to join our core engineering team. You will work across the backend (Java / Spring Boot) and frontend (React) layers of a large-scale, production platform. You will contribute to new feature development, client onboarding, PostgreSQL migration, and platform hardening initiatives.This is a high-ownership role - you will be responsible for features end-to-end, from API design and database schema changes (via Liquibase) through to UI integration and deployment.

Key Responsibilities:

- Design and develop REST APIs using Java 17 and Spring Boot 3.x for core business domains: payments, settlement, allocation, legal, and digital communications.

- Build and maintain React 18 UI components with Redux Toolkit for state management and Material-UI v5 for design.

- Write and maintain Liquibase changesets for schema evolution across Oracle and PostgreSQL databases.

- Ensure dual-engine compatibility (Oracle + PostgreSQL) for all backend SQL and Hibernate mappings.

- Integrate with internal services via RabbitMQ messaging and REST-based Feign clients.

- Implement and consume OAuth2/OIDC flows via Keycloak integration.

- Participate in code reviews, write unit and integration tests, and maintain code quality standards.

- Collaborate with mobile, infra, and product teams in an agile environment.

Requirements

- 3–5 years of professional software development experience

- At least 2 years in Java + Spring Boot backend development

- At least 1 year of production React frontend work

Backend:

- Java 17 - strong proficiency; streams, concurrency, generics

- Spring Boot 3.x - REST controllers, Spring Data JPA, Spring Security

- Hibernate 6.x - entity mappings, JPQL, native queries

- Liquibase - versioned schema migrations, multi-DB changesets

- Oracle SQL + PostgreSQL - comfortable writing and optimising queries on both

- REST API design - pagination, error handling, idempotency

Frontend:

- React 18 - functional components, hooks, context

- Redux Toolkit - slices, thunks, RTK Query

- Material-UI v5 - theming, custom components

- REST API integration - Axios/fetch, error boundaries, loading states

- Basic understanding of build tooling (Webpack / Vite / npm)

General:

- Git - branching, PR-based workflow, rebasing

- Docker - building and running containers locally

- Understanding of microservice architecture

- Familiarity with CI/CD pipelines

PREFERRED / NICE-TO-HAVE

- Experience with AWS (S3, SQS, Lambda, EKS / Kubernetes)

- Keycloak or any OAuth2/OIDC provider integration

- RabbitMQ or any message broker (Kafka, ActiveMQ)

- Flowable BPMN or any workflow engine

- Redis (caching, session management)

- API Gateway patterns

- FinTech or NBFC domain knowledge (loans, collections, settlements)

Benefits

Why Join Kadel Labs?

· Opportunity to work with a fast-growing, innovative company.

· A dynamic work environment where creativity and new ideas are encouraged.

· Competitive salary and benefits package.

· Professional development opportunities in a people-first culture.

Visit us:

Job Type: Full-time

Benefits:

Flexible schedule

Health insurance

Paid sick time

Paid time off

Provident Fund

Work from home

Application Question(s):

What is the duration of Notice period to be served?

What is your current and expected CTC?

Experience:

React 18: 2 years (Required)

Java+Springboot: 3 years (Required)

Location:

Bengaluru, Karnataka (Required)

Work Location: In person