Role Overview

AbhiBus, owned by ixigo, is a leading online bus-ticketing platform seeking a skilled Backend Developer to contribute to core engineering and modern tech initiatives, including AI integration.

Responsibilities

Design, develop, and maintain scalable backend services and APIs.
Build high-performance distributed systems using Java/J2EE.
Own features end-to-end from design to deployment and monitoring.
Optimize applications for performance, scalability, and reliability.
Write clean, maintainable code with proper unit and automation tests.
Collaborate with Product, Design, and QA teams to deliver product features.
Integrate generative AI and Large Language Models (LLMs) into backend services using modern Java AI frameworks like Spring AI or LangChain4j.
Design and implement Retrieval-Augmented Generation (RAG) workflows by connecting Java applications with Vector Databases (e.g., Pinecone, Milvus, Qdrant).
Build AI-driven APIs and robust orchestration layers to manage prompts and context windows efficiently.

Requirements

3–5 years of backend development experience.
Strong expertise in Java / J2EE, Springboot, Kafka and React technologies.
Solid understanding of Data Structures and Algorithms.
Knowledge of multithreading, memory management, and system design.
Experience with MySQL or PostgreSQL, NoSql database.
Strong SQL query writing (SELECT, JOINs, GROUP BY, subqueries, CTEs).
Experience with Window functions (ROW_NUMBER, RANK, etc.) and Views.
Basic stored procedures/functions and Query optimization fundamentals.
Basic indexing concepts and understanding of execution plans (EXPLAIN).
Understanding of Transaction management (ACID, isolation levels).
Familiarity with MongoDB and RESTful Web Services.
Experience using AI-powered development tools is a plus.
Basic understanding of prompt engineering, model temperature tuning, and token optimization.
Experience with cloud-native development, including containerization (Docker, Kubernetes) and CI/CD pipelines.