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Rambabu Pennada

Technical Lead @ Junglee Games | Distributed Systems & System Design | Java | Spring Boot | Kafka | Redis | PostgreSQL | Performance & Scalability | Technical Leadership

Greater Bengaluru Area

9+ years of work experience

Junglee Games
Jul 20242 yrs 3 mosPresent

Bengaluru, Karnataka, India

Scaled gaming and platform services to support 400k+ CCUs with high stability and low latency. Drove roadmap planning and prioritization, aligning deliverables with business goals for timely, high-impact releases. Led the investigation and resolution of P0 production incidents, driving rapid mitigation, root-cause analysis, and preventive measures to improve system reliability. Architected distributed systems using Java, Spring Boot, Kafka, Redis, PostgreSQL, and MongoDB for seamless large-scale gameplay. Designed scalable data models, indexing strategies, and optimized complex queries across PostgreSQL and MongoDB to support high-throughput, low-latency distributed services. Implemented backend security practices including authentication, authorization, access control, input validation, and secure API design across distributed services. Led and mentored engineers, elevating design practices, code quality, and knowledge sharing. Ensured compliance by delivering EGF initiatives and strengthening fair-play gaming measures.
Junglee Games
Jun 20231 yr 3 mosAug 2024

Bengaluru, Karnataka, India

Focused on system stability and scalability, fine-tuning core Fantasy and Platform services to support 200k concurrent users (CCUs) with high reliability. Designed and implemented the User-Perks Service (Reactivation System) and revamped the Referral System, enabling seamless cross-promotions across the Howzat, Poker, Ludo, and Rummy ecosystem, boosting user engagement and retention. Mentored junior engineers (SDE-1 and SDE-2) through design reviews, code reviews, and knowledge-sharing sessions, fostering a culture of technical excellence.
Junglee Games
Nov 20193 yrs 7 mosMay 2023

Greater Bengaluru Area

Optimized the JoinContest flow in Howzat Fantasy, reducing API response time from 300ms to 90ms, significantly improving user experience during peak loads. Designed and implemented the Criteria Service (User Management) using Spring Boot and SpEL, enabling personalized targeting of users with relevant offers and benefits. Built a Template-based Contest System (2, 3, 5 player formats) using Redis Sorted Sets, ensuring seamless seat allocation during peak hours and eliminating “contest full” issues for head-to-head and small contests. Separated cash and practice contest joins and implemented a Redis counter for joined team count increments, reducing database load by avoiding multiple master DB updates for large contests. Integrated third-party score providers and automated the scoring system, optimizing the leaderboard refresh mechanism to update scores and ranks in real time. Developed and optimized the Prize-Structure Service with dynamic prize recalculation, supporting larger prize pools and enabling the creation of mega contests. Contributed to the implementation and release of Solitaire Gold, expanding the game portfolio.
Algorin TechLabs
Feb 20181 yr 4 mosMay 2019

Bengaluru, Karnataka, India

Product: PlayFantasy Website: www.playfantasy.com Responsibilities: 1. Scoring Service: Managed manual scoring services across multiple sports, including Cricket, Football, and Kabaddi, ensuring accuracy and timely updates. 2. Score Automation: Implemented score automation by integrating third-party APIs, enabling real-time ball-by-ball scoring. 3. Prediction Fantasy Scoring Service: Developed and optimized the scoring service for prediction-based fantasy games, enhancing user engagement. 4. Bonus Service: Led the development and maintenance of the Bonus Service, driving user retention and incentivization strategies. 5. Communication Service: Managed and enhanced the Communication Service, facilitating seamless interaction between the platform and its users. 6. Partner Relationship Management (PRM): Built and maintained an internal application for partners to manage referrals, strengthening partner relationships and driving growth.
IBM
Aug 20176 mosJan 2018

Bengaluru, Karnataka, India

Worked as a Java Developer. Client Name : JABIL Project Name : RM(Risk Management) 1. To Find Availability of a Products, Based on availbility we calculate the Risk. 2. Involved in Code coverage
May 20161 yr 3 mosJul 2017

Bengaluru, Karnataka, India

Worked As a Software Engineer. Client : Walmart Responsibilities: 1. Automated Reports generation 2. Solving inventory Problems while uploading into walmart site. 3. Involved in developing APIS to find Fraud Selleres and Fraud items.

Rambabu’s AI Stack

antigravity
antigravity
claude code
claude code
codex
codex
gemini
gemini
github copilot
github copilot
windsurf
windsurf

Education

Master of Computer Applications - MCA, Computer Science

St. Martin's Engineering College

20113 yrs2014

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Headline

Technical Lead @ Junglee Games | Distributed Systems & System Design | Java | Spring Boot | Kafka | Redis | PostgreSQL | Performance & Scalability | Technical Leadership

About

Technical Lead with 9+ years of experience in Java, Spring Boot, Distributed Systems, and Databases. Skilled in building and scaling high-performance gaming platforms supporting 200k+ CCUs with low latency. Proven track record in system design, performance optimization, and regulatory compliance across Fantasy, Poker, Ludo, and Rummy. Passionate about solving complex engineering challenges, mentoring teams, and delivering business-impactful solutions.

Location

Greater Bengaluru Area

AI stack

antigravity

claude code

codex

gemini

github copilot

windsurf

Work experience

Technical Lead at Junglee Games, Jul 2024 - Present · 2 yrs 3 mos, Bengaluru, Karnataka, India, Scaled gaming and platform services to support 400k+ CCUs with high stability and low latency. Drove roadmap planning and prioritization, aligning deliverables with business goals for timely, high-impact releases. Led the investigation and resolution of P0 production incidents, driving rapid mitigation, root-cause analysis, and preventive measures to improve system reliability. Architected distributed systems using Java, Spring Boot, Kafka, Redis, PostgreSQL, and MongoDB for seamless large-scale gameplay. Designed scalable data models, indexing strategies, and optimized complex queries across PostgreSQL and MongoDB to support high-throughput, low-latency distributed services. Implemented backend security practices including authentication, authorization, access control, input validation, and secure API design across distributed services. Led and mentored engineers, elevating design practices, code quality, and knowledge sharing. Ensured compliance by delivering EGF initiatives and strengthening fair-play gaming measures.

SDE III at Junglee Games, Jun 2023 - Aug 2024 · 1 yr 3 mos, Bengaluru, Karnataka, India, Focused on system stability and scalability, fine-tuning core Fantasy and Platform services to support 200k concurrent users (CCUs) with high reliability. Designed and implemented the User-Perks Service (Reactivation System) and revamped the Referral System, enabling seamless cross-promotions across the Howzat, Poker, Ludo, and Rummy ecosystem, boosting user engagement and retention. Mentored junior engineers (SDE-1 and SDE-2) through design reviews, code reviews, and knowledge-sharing sessions, fostering a culture of technical excellence.

SDE II at Junglee Games, Nov 2019 - May 2023 · 3 yrs 7 mos, Greater Bengaluru Area, Optimized the JoinContest flow in Howzat Fantasy, reducing API response time from 300ms to 90ms, significantly improving user experience during peak loads. Designed and implemented the Criteria Service (User Management) using Spring Boot and SpEL, enabling personalized targeting of users with relevant offers and benefits. Built a Template-based Contest System (2, 3, 5 player formats) using Redis Sorted Sets, ensuring seamless seat allocation during peak hours and eliminating “contest full” issues for head-to-head and small contests. Separated cash and practice contest joins and implemented a Redis counter for joined team count increments, reducing database load by avoiding multiple master DB updates for large contests. Integrated third-party score providers and automated the scoring system, optimizing the leaderboard refresh mechanism to update scores and ranks in real time. Developed and optimized the Prize-Structure Service with dynamic prize recalculation, supporting larger prize pools and enabling the creation of mega contests. Contributed to the implementation and release of Solitaire Gold, expanding the game portfolio.

Java Software Developer at Algorin TechLabs, Feb 2018 - May 2019 · 1 yr 4 mos, Bengaluru, Karnataka, India, Product: PlayFantasy Website: www.playfantasy.com Responsibilities: 1. Scoring Service: Managed manual scoring services across multiple sports, including Cricket, Football, and Kabaddi, ensuring accuracy and timely updates. 2. Score Automation: Implemented score automation by integrating third-party APIs, enabling real-time ball-by-ball scoring. 3. Prediction Fantasy Scoring Service: Developed and optimized the scoring service for prediction-based fantasy games, enhancing user engagement. 4. Bonus Service: Led the development and maintenance of the Bonus Service, driving user retention and incentivization strategies. 5. Communication Service: Managed and enhanced the Communication Service, facilitating seamless interaction between the platform and its users. 6. Partner Relationship Management (PRM): Built and maintained an internal application for partners to manage referrals, strengthening partner relationships and driving growth.

Software Engineer at IBM, Aug 2017 - Jan 2018 · 6 mos, Bengaluru, Karnataka, India, Worked as a Java Developer. Client Name : JABIL Project Name : RM(Risk Management) 1. To Find Availability of a Products, Based on availbility we calculate the Risk. 2. Involved in Code coverage

Software Engineer at Congnizant Technology Solutions Corporation, May 2016 - Jul 2017 · 1 yr 3 mos, Bengaluru, Karnataka, India, Worked As a Software Engineer. Client : Walmart Responsibilities: 1. Automated Reports generation 2. Solving inventory Problems while uploading into walmart site. 3. Involved in developing APIS to find Fraud Selleres and Fraud items.

Education

Master of Computer Applications - MCA, Computer Science, St. Martin's Engineering College