Backend Systems
Architecture trade-offs, reliability, scale, and incident response for production services.
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Deep-dive articles on System Design, Java, Kafka, Redis, AI/ML, and AWS — from an Engineering Manager with 10+ years building distributed systems at scale.
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Follow a practical track and build momentum from fundamentals to production trade-offs.
Java Production
Spring Boot readiness, JVM behavior, connection pools, and performance tuning.
Data & Caching
Database performance, cache invalidation, indexing, and production data access patterns.
Kafka & Events
Consumer lag, reliable publishing, exactly-once trade-offs, and event-driven systems.
AI Engineering
RAG, embeddings, feature stores, agents, and production AI infrastructure.
Latest Articles
Fresh practical guides and deep dives worth your time
Cache Invalidation Patterns: TTL, Write-Through, Cache-Aside, and Event-Driven Eviction
Cache invalidation is hard because the cache is not the source of truth. It is a copy, and every copy has a consistency problem. The real question is not "how do we make cache perfectly consistent?" The better question i…
Apr 7, 20265 min read
#cache invalidation#redis#caching
Database Connection Pool Tuning: HikariCP, PostgreSQL, and Traffic Spikes
Database connection pools look boring until they take production down. Most backend services do not fail because the database has zero capacity. They fail because the application opens too many connections, holds them to…
Apr 7, 20268 min read
#spring boot#hikaricp#postgresql
Kafka Consumer Lag: Causes, Diagnosis, and Production Fixes
Kafka consumer lag is not a root cause. It is a symptom. Lag means consumers are not keeping up with producers for one or more partitions. The fix depends on why: slow processing, too few consumers, partition skew, rebal…
Apr 7, 20265 min read
#kafka#consumer lag#messaging
Multi-Region Architecture: Active-Active, Active-Passive, and Consistency Trade-Offs
Multi-region architecture is expensive insurance. It can improve availability and latency, but it also makes data consistency, deployment, observability, and operations much harder. Before designing multi-region, ask two…
Apr 7, 20265 min read
#multi-region#system design#distributed systems
About Me
Who I Am
I'm a Technical Lead / Architect at Redwood Software, with over 10 years of backend engineering across fintech, enterprise SaaS, and early-stage startups.
I've worked at Paytm, ServiceNow, Threado AI, Paysafe, Accion Labs, and TCS — building systems that process payments at scale, integrating enterprise platforms, and leading teams through complex data migrations and architectural transitions.
CodeSprintPro is where I share what I've learned from building production systems — the real patterns, the real trade-offs, and the decisions that only make sense once you've seen a system fail at 2am.
Technical Stack
Languages & Frameworks
JavaSpring BootSpring CloudSpring Security
Data & Messaging
KafkaRedisMySQLPostgreSQLElasticsearchPresto
Infrastructure & Observability
AWSDockerPrometheusGrafanaDatadogNew Relic
Architecture
MicroservicesSystem DesignDistributed SystemsREST APIs
10+
Years of experience
7
Companies across fintech, SaaS & startups
73
Technical articles published
Work Highlights
Selected projects from 10 years of building backend systems across payments, enterprise SaaS, and startups.
Paytm2023 – 2025
Staff Software Engineer / Senior Technical Lead
PSP Device Binding Migration & Merchant Invoicing
- →Led migration of 20 GB+ of user PSP binding data with zero downtime — served millions of active Paytm users
- →Built and shipped new device binding APIs for the mobile platform, improving security and reducing unauthorized access
- →Replaced heavy code-based merchant file processing with Presto-powered SQL pipelines, cutting invoicing turnaround and eliminating per-config code changes
- →Led deployment team through critical production rollouts; used shell scripting to resolve live device binding incidents
JavaSpring BootKafkaRedisMySQLPrestoPrometheusGrafana
ServiceNow2019 – 2022
Independent Contributor II & III
Azure, Jira & DevOps Integrations — Marketplace Apps
- →Architected and shipped Azure and Jira integration apps now available in the ServiceNow Store
- →Contributed to the ServiceNow Agile Development 2.0 family plugin, used by enterprise customers globally
- →Led security remediation across the product using Fortify static analysis — identified and resolved critical vulnerabilities
JavaServiceNowAzureJiraREST APIsFortifyJenkinsDocker
Paysafe Group2018 – 2019
Platform Engineer
Real-Time Transaction Analytics Platform
- →Built a merchant analytics platform that processed payment transactions in parallel using MapR Stream
- →Enriched raw transaction data and surfaced insights into merchant dashboards via Elasticsearch and Druid
- →Designed Spring Boot / Spring Cloud REST APIs powering the analytics front-end
Spring BootSpring CloudMapR StreamElasticsearchDruid
Writing & Community
CodeSprintPro
73 in-depth articles on Kafka, Redis, System Design, Java 21, AWS, and distributed systems — the site you're reading right now.
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Medium
Earlier writing on Java, Spring Boot, and system architecture. 100K+ views across published articles.
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Stack Overflow
Active contributor with answers focused on Java, Spring Boot, and database optimization.
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Get In Touch
Feel free to reach out for collaborations, opportunities, or just a friendly chat about technology and software development.