Yash Sarjekar
Senior Backend Engineer | Generative AI Specialist | Building Scalable Systems with Python, Langchain & Huggingface | RAG Pipelines | LLM Integration | Helping freshers land jobs
- Role
- Senior Software Engineer at Publicis Sapient
- Location
- Mumbai, MH, IN
- LinkedIn followers
- 500 followers
About Yash Sarjekar
Transforming backend systems and building intelligent AI solutions | 5 years scaling distributed architectures | Now pioneering Generative AI applications with Langchain & HuggingfaceI\'m a Senior Backend Engineer who doesn\'t just build systems I build systems that make a difference.With 5 years of experience processing monthly financial transactions and now expanding into cutting-edge Generative AI, I bridge the gap between robust backend engineering and intelligent automation. WHAT I BRING TO THE TABLE: Generative AI & LLM Integration- Developed production-ready RAG pipelines with 85% accuracy improvements- Built AI-powered chatbots using Langchain, Huggingface, and Google Gemma2- Deployed and optimized LLMs on cloud platforms (30% inference time reduction)- Expert in prompt engineering, model fine-tuning, and vector databases Backend & Distributed Systems Mastery- Engineered resilient payment systems handling 50K+ monthly transactions (100% uptime)- Reduced system failures by 90% through fault-tolerant architecture- Built dispatch management systems processing 30K+ daily transactions (40% efficiency gain)- Expert in Python, Django, FastAPI, Kafka, and microservices Cloud & DevOps Excellence- AWS & Azure deployment specialist- Kubernetes orchestration for scalable AI/ML workloads- CI/CD pipeline optimization TECH STACK:AI/ML: Langchain, Huggingface, LangGraph, Langsmith, RAG, Vector DBs, TensorFlow, PyTorchBackend: Python, Django, FastAPI, Node.js, Spring BootDatabases: PostgreSQL, MongoDB, Vector DatabasesCloud: AWS, Azure, Docker, KubernetesEvent Systems: Kafka, GraphQL, REST APIs WHAT I\'M LOOKING FOR:Opportunities to leverage my backend expertise with Gen AI capabilities - building intelligent, scalable systems that solve real-world problems. Particularly interested in- AI/ML Engineer roles focusing on LLM applications- Senior Backend roles with AI/ML integration- Technical leadership in Generative AI projects Let\'s connect if you\'re building the future of AI-powered applications- SIDE PROJECT: ResumeBuilder AINoticed too many talented freshers getting rejected because of poor resumes. Built an AI tool to fix that.Free ATS score checker: https://resumebuilder.pulsestack.in/
Experience
Senior Software Engineer
Oct 2025 — Present · Mumbai, IN
Education
IBM
IBM Data Science Professional Certification, Data Science
2020 — 2020
University of Mumbai
Bachelor of Engineering, Information Technology
Our Lady of Perpetual Succor High School
Indian Certificate for Secondary Education
2003 — 2014
S K Somaiya College of Arts Science & Commerce
Indian College Certificate, Computer Science
2014 — 2016
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