Souvik Kundu
Software Engineer | Java Backend Developer | Spring Boot | Microservices | Cloud Deployment | Passionate about Creative Problem-solving
- Role
- Software Engineer at Yubi
- Location
- Kolkata, WB, IN
- LinkedIn followers
- 500 followers
About Souvik Kundu
Innovative Java Backend Engineer | Microservices Architect | Scalable Systems Builder s••••••••@gmail.com |+91••••••••87 | LinkedIn | GitHubProfessional SummaryAmbitious and impact-focused Backend Engineer with advanced expertise in Java, Spring Boot, microservices, and cloud architectures. As principal engineer and component owner for the large-scale SaaS product yucollect-field at Yubi, I engineered backends powering 100+ agencies and daily active users, supporting 40% of company sales and 60% of revenue.Proven track record in scalable API design, distributed systems, and real-time communication—achieving up to 34x performance improvements (e.g, reducing analytics API latency from 2 minutes to ~3.5 seconds) and productionizing Kafka/web sockets for high concurrency. Regularly recognized for solving high-latency challenges, leading architectural improvements, and eliminating severe security issues. Passionate about building robust, elegant solutions that empower businesses.Core SkillsBackend: Java, Spring Boot, Hibernate, JPA, RESTful APIs, Microservices, Spring AI, ThymeleafCloud & DevOps: AWS, GCP, Docker, Jenkins, Git, GitHub, BitbucketData & Messaging: PostgreSQL, PGVector, Kafka, MongoDB, Redis, MySQL, CockroachDB, RabbitMQ, WebSocketsSpecial Expertise: System Design, Vector DBs, RAG, API Security, CI/CD, Algorithm OptimizationSoft Skills: System architecture, ownership, cross-team collaboration, technical R&D, problem-solvingProject HighlightsAiChatApplication – AI Chat & RAG SystemBuilt a production-ready backend using Spring AI, OpenAI, Ollama, and PGVector; delivered Retrieval-Augmented Generation with semantic search.All code available: https://github.com/SKundu2003/AiChatApplication.gityucollect-field (Yubi)Led the architecture and development of a core loan collection platform, optimizing multi-million record analytics APIs (from 2 mins to ~3.5 seconds), integrating Kafka/WebSockets, and ensuring enterprise-grade security.Project VISHNU – Personal Safety PlatformDeveloped a microservice-based emergency response app featuring a Java Spring Boot backend, Android (Java) frontend, MongoDB, and Twilio for voice-activated, real-time alerts.Link-Based Resume Sharing PortalCreated a web app to generate and share resumes via unique links, powered by Spring Boot and MongoDB.Let’s ConnectAre you passionate about backend innovation and high-impact engineering?Connect on LinkedIn or email me at s••••••••@gmail.com.Let’s engineer the future, together!
Experience
Software Engineer
Aug 2024 — Present · Bengaluru, IN
Education
Dinabandhu Andrews Institute of Technology & Management
Bachelor of Computer Applications
Naktala High School - India
Class 12
2019 — 2021
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