Kotlin Backend Developer (Senior)

Winzons; India; On-site; INR 1,200,000 - 2,400,000; Full time

Job summary

LanceSoft in Bangalore seeks a Kotlin Backend Developer with 5-8 years of experience to design, build and maintain scalable backend services using Kotlin and Spring Boot. You will develop RESTful APIs, work with PostgreSQL and contribute to high-quality, robust software.

The ideal candidate has hands-on Kotlin, Spring Boot, Java basics, and a strong focus on code quality, testing, and collaboration with frontend, AI, and DevOps teams.

Qualifications

• 5–8 years of experience as a Kotlin backend developer.
• Hands-on Kotlin and Spring Boot experience with backend systems.
• Solid understanding of backend principles and API design.
• Experience with PostgreSQL, SQL, and performance tuning.
• Experience with unit testing frameworks and code quality tools.
• Familiarity with Git workflows and collaboration.

Responsibilities

• Develop and maintain backend services using Kotlin and Spring Boot.
• Design and implement RESTful APIs and microservices.
• Work with PostgreSQL for data storage, querying and optimization.
• Implement asynchronous and reactive programming using Kotlin Coroutines.
• Write clean, maintainable, and scalable code following best practices.
• Perform unit testing and ensure code quality using modern testing frameworks.
• Integrate third-party APIs and internal services.
• Collaborate with Frontend, AI-Team and DevOps teams.
• Participate in code reviews and ensure adherence to coding standards.
• Troubleshoot, debug, and optimize application performance.

Skills

Kotlin

Spring Boot

Java basics

PostgreSQL

SQL queries

MockK

Mockito

Git

Docker

CI/CD

Education

Bachelor's Degree in Computer Science, Information Technology, Engineering, or related field

Tools

Git

Docker

Job description

Company Name: LanceSoft
Job Role: Kotlin Backend Developer
Experience Required: 5-8 Years
Location: Bangalore, India
Qualification: Bachelor's Degree in Computer Science, Information Technology, Engineering, or related field
Industry: Information Technology / Software Development

Job Description :

We are looking for a skilled Kotlin Backend Developer to design, develop,and maintain scalable backend systems using modern technologies. The ideal candidate should have hands-on experience with Kotlin and Spring Boot, a solid understanding of backend development principles, and the ability to build high-performance, reliable APIs.

Key Responsibilities

• Develop and maintain backend services using Kotlin and Spring Boot
• Design and implement RESTful APIs and microservices
• Work with PostgreSQL for data storage, querying, and optimization
• Implement asynchronous and reactive programming using Kotlin Coroutines
• Write clean, maintainable, and scalable code following best practices
• Perform unit testing and ensure code quality using modern testing frameworks
• Integrate third-party APIs and internal services
• Collaborate with Frontend, AI-Team and DevOps teams
• Participate in code reviews and ensure adherence to coding standards
• Troubleshoot, debug, and optimize application performance

Required Skills

• Core Technologies
  • Strong proficiency in Kotlin
  • Experience in backend development using Spring Boot
  • Basic understanding of Java
• Database
  • Hands-on experience with PostgreSQL
  • Knowledge of SQL queries, indexing, and performance tuning
• Testing & Quality
  • Experience with unit testing frameworks :
    1. MockK
    2. Mockito
  • Code coverage tools :
    1. JaCoCo
• Version Control
  • Proficient in Git (branching, merging, pull requests)

Good to Have

• Experience with Microservices architecture
• Exposure to Docker
• Understanding of CI/CD pipelines
• Familiarity with event-driven architecture