Arjun Raju | Senior Java Tech Lead

01 / About

Building systems that move billions

I'm a Technology Lead specializing in designing and delivering enterprise-grade payment platforms for Tier-1 banks. Over the past decade, I've led end-to-end delivery of systems that handle massive transaction volumes with unwavering reliability.

With ~4 years of UAE onsite experience, I've partnered directly with banking stakeholders, regulators, and global delivery teams to ship mission-critical systems. My focus is on building event-driven, cloud-native architectures that scale horizontally while maintaining strict compliance and audit requirements.

I lead by example — mentoring engineers, driving architectural reviews, conducting technical hires, and continuously reducing technical debt to keep teams shipping with confidence.

Architecture

Microservices on Kubernetes with zero-downtime deployments and horizontal scaling

Performance

Event-driven pipelines processing millions of events daily with strict ordering

Reliability

Circuit breakers, retries, rate limiting, and full observability for 99.95%+ uptime

Leadership

Mentored engineers, led 10+ hires, and drove 30% reduction in production incidents

02 / Experience

A decade of building at scale

Jan 2021 — Present

Tech Lead | Payments & Microservices

Mindgate Solutions Pvt Ltd Team Size: 16 (Onsite + Offshore)

Owned architecture, delivery, and production stability of Virtual Accounts and Direct Debit platforms, supporting >$1B monthly payment volume across multiple regions
Designed containerized Spring Boot microservices on Kubernetes — enabling horizontal scaling, zero-downtime releases, and improved system resilience
Built event-driven reconciliation pipelines using Apache Kafka, processing millions of events/day with strict ordering, idempotency, and audit compliance
Established CI/CD pipelines with automated testing and blue/green deployments, reducing production defects by ~45%
Achieved 99.95% SLA compliance through circuit breakers, retries, rate limiting, and observability (Prometheus, Grafana, ELK)
Primary technical SPOC for banking stakeholders and central bank integrations; supported audits and regulatory go-lives
Mentored senior engineers, led 10+ technical hires, drove ~30% reduction in production incidents YoY

Spring BootKafkaKubernetesDocker PrometheusGrafanaJenkinsGitHub Actions

Jan 2019 — Jan 2021

Team Lead | Enterprise Applications

Mindgate Solutions Pvt Ltd Team Size: 10

Led design and development of enterprise-grade banking modules using Spring Boot, REST APIs, and RDBMS, serving multiple regional banking clients
Coordinated cross-team dependencies, sprint planning, and release management across onsite and offshore teams
Optimized database queries and indexing strategies, reducing report generation and transaction latency by ~35%
Introduced coding standards, peer reviews, and automated testing practices, improving code quality and delivery predictability

Spring BootREST APIsOracleMSSQL AgileRelease Mgmt

Sep 2016 — Jan 2019

Senior Software Engineer

Mindgate Solutions Pvt Ltd

Developed scalable backend services using Java, Spring MVC/Boot, Hibernate, and Oracle/MSSQL databases
Implemented secure REST APIs with authentication/authorization and integrated third-party banking systems
Key role in production support, root-cause analysis, and performance tuning of high-traffic applications

JavaSpring MVCHibernateSOAP OracleREST

Dec 2014 — Sep 2016

Associate Software Developer

Rolta India Pvt Ltd

Built Java/J2EE enterprise applications for banking and enterprise domains
Contributed to full SDLC including development, testing, and production support activities

JavaJ2EEEnterprise Apps

03 / Technical Skills

Technologies I work with

Languages & Frameworks

Java Spring Boot Spring Security Spring Batch Spring JPA Hibernate React

Architecture & APIs

Microservices RESTful APIs SOAP / XML Domain-Driven Design API Gateway Circuit Breaker Rate Limiting

Messaging & Data

Apache Kafka JMS MQ Redis Oracle PostgreSQL MS SQL Server MongoDB

Cloud & DevOps

Kubernetes Docker AWS (EKS) Azure (AKS) Jenkins GitHub Actions Git Maven Helm

Observability & Testing

Prometheus Grafana ELK Stack JUnit JMeter Contract Testing

Security & Compliance

Secure Coding OWASP PCI/DSS

04 / Key Projects

Impactful work, at scale

Featured

Virtual Accounts & Direct Debit Platform

Enterprise Payments | Multi-region

Architected a microservices-based payments platform handling >$1B/month in transaction volume across multiple countries including UAE, India, Qatar, and Saudi Arabia.

Designed mandate processing, reconciliation, and settlement workflows with strict audit and compliance controls
Leveraged Kafka-based asynchronous processing to decouple services, improving throughput and fault tolerance
Zero-downtime deployments on Kubernetes with horizontal auto-scaling

Spring BootKafkaKubernetesOracleRedisPrometheus

Enterprise Payment & Reconciliation Engine

Banking Infrastructure

Built modular payment engines supporting multiple payment rails and formats for regional banking operations.

Improved reconciliation accuracy through automated event processing and reporting
Reduced manual intervention significantly via intelligent matching algorithms

JavaSpring BatchREST APIsRDBMS

CI/CD & Observability Transformation

DevOps & SRE

Led the transformation from manual deployments to fully automated CI/CD pipelines with comprehensive monitoring.

Blue/green deployment strategy reducing production defects by ~45%
Full observability stack with Prometheus, Grafana, and ELK

JenkinsGitHub ActionsDockerGrafanaELK

05 / Education

Academic background

Bachelor of Engineering

JNTU Anantapur University

2010 — 2014

06 / Contact

Let's work together

I'm open to discussing new opportunities, architecture consulting, or technical leadership roles. Feel free to reach out.

Email talktoarjunraju@gmail.com

Phone +91 9821284484

Hello, I'm Arjun Raju