
Prabakaran B
AI Agent Developer: RAG, Chatbots, Python Automation
Skills

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Portfolio
Werkervaring
Senior Engineering Lead
Persistent Systems • Fulltime
Mar 2023 - Present • 3 yrs 7 mos
- Built a GenAI document extractor that turns thousands of dense PDF pages into validated JSON (Python, Flask, Gemini, PyMuPDF). - Built a chat conversation app on Google Vertex AI: model selection through Model Garden, deployed model endpoints, and answer-quality evaluation with RAGAS against a ground-truth set. (Vertex AI Agent Builder / Agent Engine: NOT used in a real use case - do not claim.) - Cut LLM processing overhead by about 30% on that pipeline by tightening what gets sent to the model, without losing output quality. - Built a RAG-based "GenAI Playground" for internal document Q&A; recognised with a company Reward & Recognition award.
Senior Software Engineer
Nextory • Freelance
Sep 2019 - Mar 2023 • 3 yrs 6 mos
- Built and scaled the ingestion pipelines that deliver books and audiobooks to 1M+ active accounts (Python, Kafka, MongoDB). - Rebuilt slow background workers as asynchronous streaming workers, reducing content delivery delays. - Wrote multiprocessing jobs that parse and catalogue digital magazine content on tight publishing schedules.
Software Engineer
MapleLabs • Fulltime
May 2016 - Aug 2019 • 3 yrs 3 mos
- Developed the Cisco Nexus Dashboard Data Broker, used by network teams to filter and route network data. - Built monitoring tools that track the health of Cisco N3000/N9000 switches through the Nx-API. - Automated Nexus Data Broker workflows and moved core Python services into containers; received Xoriant's Excellence Award.