Senior Java Developer (Kotlin)

ACL Digital; Bengaluru; Hybrid; INR 1,800,000 - 2,800,000; Full time

Job summary

ACL Digital is seeking an experienced Backend Developer to design and maintain Kotlin-based microservices in a cloud-native environment. The role emphasizes scalable, high-performance Java/Kotlin backends and distributed systems in an agile setting.

You will build RESTful APIs, event-driven solutions with Kafka, and containerized services via Docker on Kubernetes/EKS, using AWS for cloud-native workloads. Collaboration with Product, QA, DevOps and Architecture teams is essential.

Qualifications

• Strong Core Java & Kotlin backend experience.
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Responsibilities

• Design, develop, and maintain scalable backend applications using Java/Kotlin and Microservices architecture.
• Build and integrate RESTful APIs and distributed systems.
• Develop event-driven solutions using Apache Kafka.
• Containerize services using Docker and deploy on Kubernetes/EKS.
• Work with AWS cloud services to build cloud-native applications.
• Collaborate with Product, QA, DevOps, and Architecture teams.
• Participate in code reviews, debugging, performance tuning, and production support.
• Follow coding standards, security guidelines, and engineering best practices.
• Use Git for source control and follow CI/CD processes.
• Write unit and integration tests to ensure code quality.
• Leverage AI-assisted development tools to enhance productivity.

Skills

Core Java

Kotlin

Microservices

Docker

Kubernetes/EKS

Apache Kafka

SQL/NoSQL databases

Postgres

MongoDB

Graph DB

AWS cloud

Unit testing

Integration testing

AI-assisted tooling

Git

Tools

Git

Job description

Role & responsibilities

Overview

We are looking for an experienced Backend Developer with strong expertise in Java-based backend technologies, Microservices architecture and a willingness to work extensively in Kotlin. The selected candidate will primarily develop and maintain Kotlin-based backend services and microservices in a cloud-native environment. The ideal candidate should have hands-on experience in building scalable, high-performance backend systems and working with distributed applications in an agile environment.

Key Responsibilities

• Design, develop, and maintain scalable backend applications using Java/Kotlin and Microservices architecture.
• Build and integrate RESTful APIs and distributed systems.
• Develop event-driven solutions using Apache Kafka.
• Containerize services using Docker and support deployments on Kubernetes/EKS.
• Work with AWS cloud services to build and maintain cloud-native applications.
• Collaborate with Product, QA, DevOps, and Architecture teams.
• Participate in code reviews, debugging, performance tuning, and production support activities.
• Follow coding standards, security guidelines, and engineering best practices.
• Use Git for source control and follow established CI/CD and release processes.
• Strong experience in writing Unit Test Cases and Integration Test Cases.
• Leverage AI-powered development tools and coding assistants to improve productivity, code quality, debugging, testing, and documentation.

Must-Have Skills

• Strong Core Java fundamentals and backend development experience.
• Hands-on experience with Microservices architecture like Docker and Kubernetes/EKS.
• Strong experience with Apache Kafka.
• Exposure to SQL and NoSQL data bases including Postgres, MongoDB, Graph DB
• Hands-on experience with AWS cloud services.
• Strong analytical and problem-solving skills.
• Strong experience in writing Unit and Integration Test Cases.

Preferred candidate profile

Preferred Skills

• Hands-on experience with Java/Kotlin.
• Exposure to NATS Jetsteams would be a plus
• Experience building cloud-native and distributed applications.
• Exposure to event-driven architecture

Version Control

• Git

What We Are Looking For

• Strong ownership and accountability.
• Excellent communication and collaboration skills.
• Ability to work independently in a fast-paced Agile environment.
• Passion for learning and adapting to new technologies.Willingness to work extensively on Kotlin-based applications.
• Hands-on experience using AI-assisted development tools (Ex: Codex, GitHub Copilot, ChatGPT, Claude, Cursor, Windsurf, or similar) to enhance engineering productivity.