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I am a Senior Full Stack & Cloud Architect with 14+ years of experience designing, developing, and deploying resilient, event-driven software solutions across financial and enterprise domains. I specialize in Java, Python, ReactJS, Kubernetes, Docker, Kafka, Camunda BPM, and cloud platforms such as AWS and Azure. I enjoy architecting secure, scalable microservices and data pipelines, and I thrive in collaborative, cloud-first environments that emphasize Agile practices and risk-aware multi-cloud strategies.…I am a Senior Full Stack & Cloud Architect with 14+ years of experience designing, developing, and deploying resilient, event-driven software solutions across financial and enterprise domains. I specialize in Java, Python, ReactJS, Kubernetes, Docker, Kafka, Camunda BPM, and cloud platforms such as AWS and Azure. I enjoy architecting secure, scalable microservices and data pipelines, and I thrive in collaborative, cloud-first environments that emphasize Agile practices and risk-aware multi-cloud strategies.

Selvarajan Kannaiyan

Full Stack Developer, Architect, Web Developer, +4

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I am a Senior Full Stack & Cloud Architect with 14+ years of experience designing, developing, and deploying resilient, event-driven software solutions across financial and enterprise domains. I specialize in Java, Python, ReactJS, Kubernetes, Docker, Kafka, Camunda BPM, and cloud platforms such as AWS and Azure. I enjoy architecting secure, scalable microservices and data pipelines, and I thrive in collaborative, cloud-first environments that emphasize Agile practices and risk-aware multi-cloud strategies.…I am a Senior Full Stack & Cloud Architect with 14+ years of experience designing, developing, and deploying resilient, event-driven software solutions across financial and enterprise domains. I specialize in Java, Python, ReactJS, Kubernetes, Docker, Kafka, Camunda BPM, and cloud platforms such as AWS and Azure. I enjoy architecting secure, scalable microservices and data pipelines, and I thrive in collaborative, cloud-first environments that emphasize Agile practices and risk-aware multi-cloud strategies.

Available to hire

I am a Senior Full Stack & Cloud Architect with 14+ years of experience designing, developing, and deploying resilient, event-driven software solutions across financial and enterprise domains.

I specialize in Java, Python, ReactJS, Kubernetes, Docker, Kafka, Camunda BPM, and cloud platforms such as AWS and Azure. I enjoy architecting secure, scalable microservices and data pipelines, and I thrive in collaborative, cloud-first environments that emphasize Agile practices and risk-aware multi-cloud strategies.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

German

Fluent

English

Fluent

Tamil

Fluent

Work Experience

Technical Architect at Verizon

August 20, 2019 - August 20, 2019

Led architectural design and delivery of a digital platform for enterprise FX/FI alert breaches. Implemented end‑to‑end solutions using Camunda BPM, Spring Boot, Kafka, and REST APIs; enabled cloud deployment considerations and scalable microservice patterns.

Senior Consultant at Capgemini

October 20, 2021 - October 20, 2021

Drove end‑to‑end implementation of the Miles and More Credit Card Service, integrating with TSYS, React/JS front‑ends, and back‑end services. Improved system performance and compliance, implemented fraud detection and payment processing features, and strengthened client relationships.

Assistant Manager at Citicorp Services India Ltd.

December 20, 2017 - December 20, 2017

Managed analytics and data flows for trade processing platforms; contributed to design and delivery of distributed systems and data workflows in financial services.

Software Engineer at Bank of America (through IBM India Private Limited)

September 20, 2014 - September 20, 2014

Application development focusing on reference data systems; implemented core Java, Struts, Oracle 11g, Tomcat 6.x, and Hibernate in a bank‑backed environment; contributed to dashboards and data integrity workflows.

Software Engineer at Bank of America

September 20, 2014 - September 20, 2014

Developed and maintained dashboards and reference data platforms; implemented automated testing and production support pipelines within IBM’s delivery framework.

Full Stack Architect & Java Developer at Camunda

August 20, 2025 - August 20, 2025

Led end‑to‑end implementation of Camunda‑driven workflows across multiple banking domains, delivering secure, scalable BPM solutions. Built a centralized dashboard for traders and risk managers using SPAR ReactJS apps, AEM, and RESTful integration with AWS, Docker, and Kubernetes.

Senior Full Stack & Cloud Architect at HCLTech

August 1, 2025 - August 1, 2025

Led end-to-end implementation of the Miles and More Credit Card Service, integrating with TSYS systems on Microsoft Azure. Architected secure, scalable APIs and microservices using Spring Boot, Camunda BPM, and AWS; designed real-time event streaming and data pipelines with Kafka, Kafka Connect, and Schema Registry; implemented multi-region resilience and strategies to reduce vendor lock-in and geopolitical risk. Introduced Agile best practices, improving team efficiency by ~30% and shortening delivery timelines. Mentored 15+ developers and steered client relationships to achieve high satisfaction and successful follow-on work.

Senior Consultant at Capgemini

October 1, 2021 - October 1, 2021

Developed a digital platform for Alert Breach Management in FX/FI trading systems, leveraging Camunda workflow engine, Spring Boot microservices, and Kubernetes-based deployments. Designed real-time monitoring and automated alerting, implemented second-level trader identity validation via Camunda Process APIs and workflow rules, and built multi-service REST/SOAP integrations with a privacy- and security-focused data architecture.

Assistant Manager at CitiCorp Services India Ltd

August 1, 2019 - August 1, 2019

Led foundational work for risk and trade book analytics, developed a reference data platform, and implemented simple data governance workflows. Directed a cross-functional team to deliver analytics and data quality improvements, enabling more informed trading decisions and regulatory reporting.

Software Engineer at Royal Bank of Scotland (RBS) India Pvt Ltd

January 1, 2017 - January 1, 2017

Worked on authentication and security workflows for online banking (LMMS). Implemented login operations, token generation, and security controls for retail banking, contributing to the stability and scalability of trading-related support tooling.

System Engineer at IBM India Private Limited

September 30, 2014 - September 30, 2014

Application Data System focus for Bank of America workloads. Monitored and reported health of multiple BOA-backed applications, developed rules for error detection, and collaborated on data flow governance and operational dashboards.

Technical Architect at Verizon

December 31, 2017 - December 31, 2017

Developed a digital platform for B2B & C2C e-commerce portals by building a service-oriented architecture with Spring Boot microservices, Camunda-based workflows, and Kafka-based event streaming. Implemented cloud-ready design patterns and integrated with AWS for scalable, secure delivery of commerce features.