Ramkrishna Minji

Software Engineer

Kolkata, West Bengal, India2 yrs 10 mos experience

Key Highlights

Secured 40M+ records with AES-256 encryption.
Designed microservices for 17M+ credit card users.
Led infrastructure migration handling 100M+ hits/day.

Stackforce AI infers this person is a Backend Software Engineer specializing in Fintech, focusing on scalable distributed systems and secure data management.

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Skills

Core Skills

JavaMicroservicesData SecurityDatabase ManagementData SynchronizationData ManagementSystem ScalabilityInfrastructure ManagementDatabase OptimizationEvent ManagementData Accuracy

Other Skills

Spring BootSystem DesignFault TolerancePerformance TuningAES-256 encryptionMySQLCassandraKafkaReal-time processingAerospikeData ProcessingInfrastructure MigrationDevOps CoordinationElasticsearchEvent Processing

About

I am Ramkrishna Minji, a Backend Software Engineer with 2.5+ years of experience designing and scaling distributed systems that power millions of users daily. Currently at Paytm, I focus on building secure, resilient microservices in the credit card and payments domain. My work bridges high-scale engineering and business impact. I have led projects that: - Secured 40M+ sensitive records with AES-256 encryption across MySQL, Cassandra, and Kafka, ensuring compliance without downtime. - Built and deployed a consent microservice supporting 17M+ credit card users, enabling real-time and bulk flows aligned with NPCI. - Migrated Aerospike infrastructure with Graviton while handling 100M+ daily hits with zero downtime. I bring strong expertise in Java, Spring Boot, Kafka, MySQL, Cassandra, Redis, Aerospike, and AWS, along with deep experience in system design, fault tolerance, and performance tuning. Beyond coding, I take ownership end-to-end—designing, implementing, testing, and optimizing solutions that last in production. Recognized with Paytm’s Rockstar Award (Top 10% of contributors), I am motivated by solving hard engineering problems that directly improve scalability, security, and user experience. I’m open to opportunities where I can contribute to distributed systems, secure backend platforms, and real-time data architectures that make an impact at scale.

Experience

2 yrs 10 mos

Total Experience

2 yrs 6 mos

Average Tenure

4 mos

Current Experience

New relic

Software Engineer 2

Jan 2026 – Present · 4 mos · Hyderabad, Telangana, India

JavaSpring BootMicroservicesSystem DesignFault TolerancePerformance Tuning

Paytm

Software Engineer

Jul 2023 – Jan 2026 · 2 yrs 6 mos · Noida, Uttar Pradesh, India · On-site

As part of the Credit Card and Recharges & Utilities teams, I have built and optimized scalable backend systems that impact over 10 million users daily. My work involves designing secure microservices, managing large-scale data flows, and contributing to high-reliability distributed systems.
🔨 Key Projects:
1. Credit Card | Data Encryption
Implemented AES-256 encryption across MySQL, Cassandra, and Kafka for 10M+ users
Developed a secure logging mechanism by creating a centralized logger JAR used across 5+ services (BFF, Saga, Consent), with logs stored in S3
Built a fault-tolerant script to encrypt 15M+ legacy records with zero downtime
Improved Reco API performance via async processing and service decoupling, achieving 99.6% success rate
2. Credit Card | Consent Microservice
Designed and deployed a real-time and batch consent microservice handling 17M+ credit card users (NPCI-compliant)
Added a bulk consent API and backfilled 5M+ records to enable seamless bill-fetching for users
Maintained 99.9% uptime with Kafka-based data sync across microservices
3. Credit Card | Non-RU Bill-Fetch System
Built a system for bill fetching for non-registered users across 7 banks, supporting 3M+ users daily
Used Aerospike cache and Kafka tuning to improve throughput and reduce ops cost by 30%
4. Recharges & Utilities | Aerospike Upgrade & Infra Migration
Led Aerospike version upgrade (v5.1 → v6.3) and migrated infra from AMD to Graviton, handling 100M+ hits/day with zero downtime
Coordinated with DevOps to test and roll out 10+ APIs post-migration
5. Credit Card | Autopay Events System
Integrated routing logic for 44 different autopay events using Elasticsearch
Achieved 99.7% delivery accuracy across SMS, Push, and Chat channels