Java Developer

Remote · INTERNSHIP

Compensation: ₹25,000 – ₹30,000/month

5 openings

Posted 5 Nov 2026

About the role

Optimumindia is a fast-moving, web-focused technology company based in Delhi, and we're looking for a Java Developer intern to join our Engineering team. As a small, close-knit team, every line of code you write ships quickly and has a direct, visible impact on the products our customers use every day — no layers of bureaucracy, no waiting months to see your work in production. In this internship, you'll work alongside experienced engineers to design and build the server-side services and REST APIs that power our web platforms. You'll get hands-on exposure to the full development lifecycle — from understanding requirements and modelling data to writing clean Java code, testing it, and getting it deployed. This is a genuine learning role with real ownership: expect mentorship, code reviews that help you grow, and the chance to touch Spring Boot, Hibernate/JPA, SQL databases, and modern CI/CD and container tooling. If you're a recent graduate or student with solid Java fundamentals and a hunger to learn how production software is actually built, this is an ideal place to build a strong foundation — with a stipend of ₹25,000–₹30,000 per month and a team that genuinely wants you to succeed. About the Company: optimumindia is a Delhi-based, web-focused technology company building practical digital products for its clients and users. Operating as a lean team of 1–10 people, it offers engineers unusually direct influence over the product and a fast, hands-on working environment. This is a place where curiosity is rewarded and good ideas — and good code — get shipped quickly. Responsibilities: • Design, develop, and maintain server-side applications and RESTful APIs in Java using Spring Boot and the Spring Framework. • Write clean, readable, well-tested, and maintainable Java code that follows established coding standards and object-oriented best practices. • Integrate applications with relational databases (MySQL/PostgreSQL) using Hibernate/JPA and optimise SQL queries for performance. • Build and consume microservices, and assist in connecting backend services to the web front ends and third-party integrations. • Write and maintain unit and integration tests with JUnit, and actively participate in peer code reviews to improve quality. • Debug, troubleshoot, and resolve defects across development and staging environments, escalating blockers clearly when needed. • Use Git for version control and contribute to build and deployment workflows via Maven/Gradle, Docker, and CI/CD pipelines. • Collaborate day to day with developers, QA, and product stakeholders in an Agile/Scrum team — attending stand-ups, refining stories, and sharing progress transparently. Qualifications: • Strong core Java skills (OOP principles, collections, exception handling, concurrency basics) — this is mandatory. • Hands-on knowledge of Spring Boot for building REST APIs and web services — this is mandatory. • Practical understanding of REST API design, HTTP methods, JSON, and status codes — this is mandatory. • Working knowledge of SQL and relational databases such as MySQL or PostgreSQL, including writing joins and queries — this is mandatory. • Proficiency with Git for branching, committing, and collaborating on shared repositories — this is mandatory. • Familiarity with the Spring Framework and ORM tools such as Hibernate/JPA. • Solid grounding in data structures, algorithms, and problem-solving; a debugging mindset and attention to detail. • Currently pursuing or recently completed a degree in Computer Science, IT, or a related field, or equivalent self-taught/project experience. • Good written and verbal communication in English, and comfort working collaboratively in a small, fast-paced team. Benefits: • Paid internship with a monthly stipend of ₹25,000–₹30,000. • Direct one-on-one mentorship from experienced engineers, with regular code reviews and feedback. • Real ownership of production-impacting work rather than make-work tasks. • Hands-on exposure to a modern Java/Spring Boot, SQL, Docker, and CI/CD toolchain. • Flexible working arrangements and a supportive, low-bureaucracy team culture. • Learning budget and time to explore new tools and technologies. • Certificate of completion and a strong letter of recommendation for high performers. • Clear path to a full-time offer based on performance.

Requirements

Java, Spring Boot, Spring Framework, Hibernate, JPA, REST APIs, Microservices, SQL, MySQL, PostgreSQL, Maven, Gradle, Git, JUnit, Docker, CI/CD, Agile, Scrum, OOP, Data structures, Algorithms, Debugging, Problem solving, Team collaboration, Communication

About optimumindia

this is a web based company