ROHIT RAMBANSH YADAV

📍 Kolkata, West Bengal, India 📞 +91-9831808979 ✉️ rohitrambansh@gmail.com 🔗 linkedin.com/in/imrohit2611/
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Summary

Senior Backend Engineer with 5+ years of enterprise experience building large-scale, high-availability telecom billing platforms for UK based telecom operators. Specialized in Core Java, Spring Boot, microservices, telecom rating systems, AI/LLM automation pipelines and cloud technologies. Delivered performance improvements across CDR processing systems, led UAT for MVNO billing programs, and mentored 50+ engineers.

Work Experience

TATA Consultancy Services (Client: British Telecom, UK)
IT Analyst
August 2020 – Present
  • System Architecture & Development: Designed and delivered high-availability E2E telecom billing solutions (via Java, Spring Boot, OCOMC) processing 100M+ daily CDRs, driving ~£20M in revenue, and directly contributing to critical architectural design decisions across diverse platforms.
  • Domain Expertise: Managed and optimized MVNO billing, interconnect billing, and complex subscriber provisioning systems.
  • Performance Engineering: Engineered a real-time Call Detail Record (CDR) processing mechanism utilizing multithreading, reducing processing latency by 50% to achieve near real-time performance. Consistently addressed and resolved critical production issues to improve system performance and uptime.
  • Client Leadership: Spearheaded the User Acceptance Testing (UAT) phase for an E2E billing application catering to a UK-based MVNO, resulting in formal client appreciation.
  • Mentorship & Leadership: Served as a technical mentor and trainer for Java, successfully upskilling over 50 internal and external associates. Actively volunteered in project-level and team-building activities. Participated in TCS fresher hiring process as a Technical SME.
  • Career Progression: Promoted to the highly competitive TCS Digital cadre within just 1.5 years of joining after successfully clearing rigorous internal technical assessments.

Key Achievements

Education

B.Tech – ECE
Netaji Subhash Engineering College
2020
CGPA - 9.17/10

Technical Skills

Programming Languages
Core Java, Java 8, Python, Oracle SQL, Shell Scripting, PL/SQL.
Frameworks & Libraries
Oracle OCOMC/ONM, Spring Boot, Spring MVC, Spring Security (with JWT), Microservices, Junit, TDD, LangChain.
Cloud & DevOps
AWS, Microsoft Azure, Jenkins, Git, Gitlab, Linux VMs, Jira, Maven.
Methodologies & Tools
Agile, Scrum, RESTful API Integration, Amazon Q Developer.

Projects

LLM-Based Trade Execution Bot for algorithmic trading
  • Built an AI-powered Python-based algorithmic trading platform utilizing Groq (LLaMA 3.1), Selenium, and AWS EC2 to autonomously parse Telegram trading signals and execute risk-managed multi-leg GTT orders on the Upstox platform.
  • Engineered a robust system with automated daily OAuth login via TOTP, a 6-gate risk filter (EMA trend, R:R, liquidity checks), and a GitHub Actions CI/CD pipeline for zero-touch deployment.
Ariel Droplets - Smart India Hackathon Runner-Up (Final Year Project)
  • Engineered a prototype system capable of condensing and generating potable drinking water directly from atmospheric moisture.
  • Presented the working prototype at the Smart India Hackathon 2019, securing the runner-up position on a national stage.

Certifications

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Cloud & Architecture: AWS Certified Solutions Architect - Associate (2025)
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Cloud & AI: Microsoft Certified: Azure Fundamentals (AZ-900) and Azure AI Fundamentals (AI-900) (2024).
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Data & Process: Certification in Data Analytics by LinkedIn and Microsoft (2024); CSSC Six Sigma White Belt certification (2023).
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Academic Honors: Achieved State-level ranks of 56 and 60 in the Science and Mathematics Olympiad, respectively (2015).
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Additional Training: Udemy certification in Core Java, DevOps, Shell scripting, Spring Boot (2021); NPTEL certification in Python Data Structures/Algorithms (2019).

Leadership & Extracurricular Activities

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Pre-Screening Evaluator, Smart India Hackathon (2024 – 2025): Volunteered as an official pre-screening judge to rigorously review and evaluate technical solutions submitted by engineering teams nationwide.
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Placement Representative, NSEC ECE Department (2019 – 2020): Managed corporate communications and oversaw the placement process for a batch of 120+ students. Collaborated heavily with the central Placement Cell to resolve logistical conflicts during recruitment drives.
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Content Writing Intern, Connect My Edu (2018): Completed a virtual internship focused on researching, writing, and proofreading articles on diverse, niche topics.