Bishal Chakraborty

Software Engineer

Bengaluru, Karnataka, India2 yrs experience
AI EnabledAI ML Practitioner

Key Highlights

  • Expert in building fault-tolerant backend systems.
  • Proven track record in optimizing processes through automation.
  • Skilled in developing high-performance APIs for large-scale applications.
Stackforce AI infers this person is a Backend Developer specializing in Fintech and SaaS solutions.

Contact

Skills

Core Skills

Backend DevelopmentConversational AiApi Development

Other Skills

JavaSpring BootPythonLLMsVXMLRedisElasticsearchREST APIsWebhooksDjangoPostgreSQLOCR (Tesseract)ML ModelsJWTDocker

About

๐Ÿ…†๐Ÿ„ท๐Ÿ„พ ๐Ÿ„ฐ๐Ÿ„ผ ๐Ÿ„ธ You know how youโ€™re sitting there, enjoying a nice cup of coffee, and your server suddenly crashes? Yeah, that doesnโ€™t happen with me. I build high-performance, fault-tolerant backend systems that donโ€™t just break under pressureโ€”because unlike humans, servers donโ€™t need coffee breaks or a "quick 5-minute nap." Whether itโ€™s Java (Spring Boot) or Python (Django/Flask), I design backend systems that scale like a champ, handling traffic spikes like theyโ€™re nothing more than a Monday morning. --- ๐Ÿ…†๐Ÿ„ท๐Ÿ„ฐ๐Ÿ…ƒ ๐Ÿ„ธ ๐Ÿ„ณ๐Ÿ„พ -- ๐Ÿ„ฐ.๐Ÿ„บ.๐Ÿ„ฐ. ๐Ÿ„ท๐Ÿ„พ๐Ÿ…† ๐Ÿ„ธ ๐Ÿ„ผ๐Ÿ„ฐ๐Ÿ„บ๐Ÿ„ด ๐Ÿ„ป๐Ÿ„ธ๐Ÿ„ต๐Ÿ„ด ๐Ÿ„ด๐Ÿ„ฐ๐Ÿ…‚๐Ÿ„ธ๐Ÿ„ด๐Ÿ… ๐Ÿ„ต๐Ÿ„พ๐Ÿ… ๐Ÿ„ด๐Ÿ……๐Ÿ„ด๐Ÿ…๐Ÿ…ˆ๐Ÿ„พ๐Ÿ„ฝ๐Ÿ„ด Now, let me tell you what I actually do. I make life easier for everyone, from the tech nerds to the people who think โ€œAPIโ€ is a new kind of drink at Starbucks. Backend Development: Imagine thisโ€”you're cruising along the internet highway, and my APIs and microservices are the smooth roads that get you where you need to go, fast. So fast, in fact, that they might even beat your Wi-Fi at getting there (no promises, though). System Design & Scalability: You know those moments when your server is suddenly hit with millions of requests, and it starts wheezing? Well, I make sure that doesn't happen. My systems handle it with the kind of coolness that would make James Bond jealous. Automation & Process Optimization: Think about thisโ€”manual work is so last century. My job? Automate everything. Why do things the old-school way when you can have a robot do it for you? Plus, robots donโ€™t forget to drink coffee. Data & Performance Engineering: Ever seen data move faster than your brain after your morning coffee? Thatโ€™s what I do with Redis, PostgreSQL, MySQL, and NoSQL. Everything is optimized so itโ€™s so fast, youโ€™ll think itโ€™s magic (but donโ€™t worry, itโ€™s just code). --- ๐Ÿ…†๐Ÿ„ท๐Ÿ„ด๐Ÿ…๐Ÿ„ด ๐Ÿ„ธ ๐Ÿ…†๐Ÿ„พ๐Ÿ…๐Ÿ„บ ๐Ÿ„ผ๐Ÿ…ˆ ๐Ÿ„ผ๐Ÿ„ฐ๐Ÿ„ถ๐Ÿ„ธ๐Ÿ„ฒ Currently at PhonePe, Iโ€™m the one who makes sure that the customer experience (CX) runs smoother than your favorite playlist on repeat. You know those moments when youโ€™re using an app, and everything just works? Thatโ€™s me. I work behind the scenes, automating workflows, optimizing processes, and building systems so that AI agents handle the boring stuffโ€”while humans can focus on more important things, like arguing over pineapple pizza. The next time you hear an automated voice saying, โ€œThank you for using PhonePe,โ€ just know that Iโ€™m probably the one who made sure it didnโ€™t cut off mid-sentence, like some apps do when theyโ€™re having a bad day.

Experience

2 yrs
Total Experience
1 yr
Average Tenure
--
Current Experience

Phonepe

Engineer - Voice & Conversational AI

Mar 2025 โ€“ Mar 2026 ยท 1 yr ยท Bengaluru ยท On-site

  • ๐™€๐™ฃ๐™œ๐™ž๐™ฃ๐™š๐™š๐™ง๐™ž๐™ฃ๐™œ ๐™˜๐™ค๐™ฃ๐™ซ๐™š๐™ง๐™จ๐™–๐™ฉ๐™ž๐™ค๐™ฃ๐™–๐™ก ๐˜ผ๐™„ ๐™–๐™ฃ๐™™ ๐™ž๐™ฃ๐™ฉ๐™š๐™ก๐™ก๐™ž๐™œ๐™š๐™ฃ๐™ฉ ๐™„๐™‘๐™ ๐™–๐™ฉ ๐™‹๐™๐™ค๐™ฃ๐™š๐™‹๐™š
  • Driving Conversational AI and backend voice automation at PhonePe, Indiaโ€™s leading payments platform with 600M+ users, 40M+ merchants, 330M+ daily transactions, and โ‚น150L Cr+ annual TPV.
  • Enabling Multilingual voice support, for 11 primary languages across the Indian territory based on demographics.
  • Integrate Python-driven LLM pipelines for real-time speech intent parsing and multilingual classification at scale.
  • Automate call tagging, dynamic routing, and fallback handling through backend rule engines for 40M+ merchant queries.
  • Embed semantic understanding for edge-case resolution across diverse voice inputs nationwide.
  • Deploy observability hooks & async workers ensuring sub-second response cycles across 330M+ daily transactions.
  • Stack: Java, Spring Boot, Python, LLMs, VXML, Redis, Elasticsearch, REST APIs, Webhooks
JavaSpring BootPythonLLMsVXMLRedis+5

Codezin technology solutions private limited

Software Developer and Engineer - Backend

Feb 2024 โ€“ Mar 2025 ยท 1 yr 1 mo ยท Kolkata ยท On-site

  • Built and scaled a multi-tenant SaaS powering all major Indian ports & airports, enabling 10M+ containers & air cargo shipments annually.
  • Engineered real-time validation pipelines processing 200K+ JSON lines/minute, reducing customs clearance delays by 95%.
  • Designed and deployed OCR + ML models parsing 50K+ invoices, manifests & shipping bills/day, cutting manual processing time from 3 hrs โ†’ 10 mins.
  • Developed secure REST APIs with JWT authentication, AES encryption, and automated billing, generating invoicing/year across clients.
  • Architected CRM + cargo tracking system handling 2M+ live tracking events/day, with <150ms API latency at scale.
  • Implemented containerized microservices (Docker + Django) with 99.99% uptime, supporting 100K+ concurrent trade ops across ports.
  • Stack: Python, Django, REST APIs, PostgreSQL, Redis, OCR (Tesseract), ML Models, JWT, Docker, Webhooks
PythonDjangoREST APIsPostgreSQLRedisOCR (Tesseract)+6

Education

Hooghly Engineering and Technology College

Bachelor of Technology - BTech (Hons.) โ€” Computer science and engineering

Oct 2020 โ€“ Aug 2024

Authpur National Model Higher Secondary School

Apr 2004 โ€“ May 2019

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