Technical Lead-Java

Onix; Pune District; Hybrid; INR 1,800,000 - 2,400,000; Full time

Job summary

Onix is seeking an experienced backend/full-stack engineer to design and implement high-performance microservices using Java and Spring, and to build robust RESTful APIs with event-driven data flow. The role involves database design across SQL and NoSQL, plus collaboration with frontend teams to deliver cohesive solutions.

The candidate will participate in DevOps practices, implement CI/CD pipelines, and utilize Docker and Kubernetes for deployment, while ensuring strong test coverage with

Qualifications

• Experience in designing and building backend microservices with Java and Spring.
• Strong knowledge of RESTful API design and event-driven architectures (Kafka/RabbitMQ).
• Expertise with relational and NoSQL databases (PostgreSQL/MySQL/Oracle, MongoDB/Redis).
• Frontend experience with React.js or Angular is a plus and collaboration with frontend teams.

Responsibilities

• Design, implement, and secure backend microservices using Java and Spring ecosystem.
• Build and maintain RESTful APIs and event-driven data flows (Kafka).
• Design database schemas and write optimized queries for RDBMS and NoSQL.
• Collaborate in Agile/Scrum, perform code reviews, and ensure test coverage with unit/integration tests.

Skills

Java

Spring ecosystem

REST APIs

Database design

NoSQL databases

React.js

Angular

CI/CD

Docker

Kubernetes

AWS

GCP

Tools

Docker

Kubernetes

Kafka

RabbitMQ

Redis

Jenkins

GitHub Actions

PostgreSQL

MySQL

Job description

• Design and implement high-performance, secure backend microservices using Java and
• the Spring Ecosystem (Spring Boot, Spring MVC, Spring Data JPA, Spring Security).
• Build, maintain, and document RESTful APIs and event-driven architectures (e.g., Kafka,
• Design database schemas, write optimized complex queries, and manage database
• interactions using RDBMS (PostgreSQL, MySQL, Oracle) and NoSQL databases
• (MongoDB, Redis).

Frontend Development

• Develop responsive, interactive, and modular user interfaces using React.js, Angular,
• Integrate state management solutions (Redux, RxJS) and optimize UI/UX components

DevOps, Testing & Quality Assurance

• Implement continuous delivery pipelines with CI/CD tools (Jenkins, GitHub Actions,
• GitLab CI) and deploy applications using Docker and Kubernetes.
• Leverage cloud infrastructure (AWS, Azure, or GCP) for application hosting and
• resource management.
• Maintain strong test coverage by writing automated unit and integration tests (JUnit,
• Mockito, Jest, Cypress) following TDD/BDD practices.

Collaboration & Architecture

• Participate actively in Agile/Scrum ceremonies, sprint planning, and technical design
• discussions.
• Conduct code reviews, identify bottlenecks, refactor legacy code, and resolve technical
• debt.

Preferred / Nice-to-Have Skills

• Hands-on experience with cloud computing platforms (GCP).
• Knowledge of containerization (Docker) and orchestration (Kubernetes).
• Familiarity with messaging systems (Apache Kafka, RabbitMQ) and caching strategies
• (Redis).
• Experience with serverless architectures, microservices patterns, and service mesh