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Raj.dev
OPEN TO WORK ๐Ÿ“ Dallas, TX๐ŸŒ Remoteโœˆ๏ธ Relocate OK

Hello, Iโ€™m

Rajkumar Rajendran

Backend Engineer|

Backend-focused software engineer building scalable, low-latency systems with Java, Spring Boot, microservices, cloud platforms, caching, and resilient API integrations.

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JavaSpring BootMicroservicesAngularKafkaPostgresOpenShift / GKE

What I Bring

Core strengths I bring to backend and platform engineering teams

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High-performance backend systems

Building low-latency Java and Spring Boot services with caching, async processing, and optimized database access.

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Cloud-native microservice architecture

Designing resilient distributed systems deployed on Kubernetes, OpenShift, and modern cloud platforms.

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Reliable large-scale APIs

Building secure APIs with OAuth2/JWT, API gateways, monitoring, and reliability practices for enterprise workloads.

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Backend Systems

Spring Boot microservices, distributed integration, API security, reliability ownership, and high-volume production systems.

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Cloud & Migration

Migrated services from PCF to OpenShift, deployed to GKE, and automated infrastructure using Terraform.

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Low Latency Work

WebClient-based async flows, caching with GemFire and Redis, query optimization, and response-time reduction.

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AI Documentation Agent

Built an AI-powered documentation workflow triggered in CI/CD pull requests to reduce manual engineering effort.

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Frontend & Angular

Angular-based UI development with Signals, resource API, REST integration, and responsive data-driven interfaces.

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Leadership

Mentored new engineers, guided architecture decisions, and led delivery across critical enterprise initiatives.

Experience

Full Stack Senior Software Developer (Technical Team Lead)

TCS ยท Citibank

2021 โ€” Present
JavaSpring BootAngularOpenShiftGKEGemFireOAuth2 / JWT
  • Led end-to-end microservice design and migration from PCF to OpenShift.
  • Built async and sync APIs, strengthened reliability, and supported high-volume banking workloads.
  • Onboarded 40+ APIs to IBM API Gateway with TLS, quotas, and rate limiting.
  • Implemented GemFire caching, reducing MongoDB load by 80%.
  • Built an AI documentation agent in CI/CD and mentored team members.

Software Developer

Vacation Labs

2018 โ€” 2019
Angular 6Node.jsJavaSpring BootPostgresDocker
  • Built back-office applications and microservices for booking workflows.
  • Designed Angular UI and integrated JSON/AJAX-driven features.
  • Optimized Docker staging execution time and handled Postgres migrations.

Software Developer

NTT Data ยท BMW

2016 โ€” 2018
JavaSOASpring BootRedisLegacy Modernization
  • Helped convert monolithic legacy systems into microservices.
  • Rewrote a reporting API and reduced latency from minutes to under 10 seconds.
  • Added monitoring and production alerting for faster incident response.
Education

Doctorate in Information Science

Trine University

2026 โ€” In Progress

Masters in Information Science

Trine University

2024 โ€” 2025

Masters in Computer Science

University of Texas at Arlington

2019 โ€” 2021
Skills
JavaJava 21Spring Boot 3.5Angular 19KafkaSolaceRedisGemFireOpenShiftAWSGCPDockerTerraformPostgresMongoDBCassandraOAuth2JWT