I am Selvaraj Kannaiyan, founder and CTO, Enterprise Architect and AI & Cloud Platform Leader based in Wiesbaden, Germany. I bring 14+ years of end-to-end experience across banking, FinTech, SaaS, and AI-driven domains, delivering enterprise-grade architectures and scalable platforms with a hybrid Germany-India engineering model. My strengths include event-driven architectures (Kafka), Camunda BPM, Java/Spring Boot microservices, Python AI/ML integration, and cloud-native deployments on AWS and Azure. I am passionate about building AI-powered SaaS and FinTech solutions with multi-tenant governance, data security, and regulatory compliance, leading product strategy and client delivery.

Selvaraj Kannaiyan

I am Selvaraj Kannaiyan, founder and CTO, Enterprise Architect and AI & Cloud Platform Leader based in Wiesbaden, Germany. I bring 14+ years of end-to-end experience across banking, FinTech, SaaS, and AI-driven domains, delivering enterprise-grade architectures and scalable platforms with a hybrid Germany-India engineering model. My strengths include event-driven architectures (Kafka), Camunda BPM, Java/Spring Boot microservices, Python AI/ML integration, and cloud-native deployments on AWS and Azure. I am passionate about building AI-powered SaaS and FinTech solutions with multi-tenant governance, data security, and regulatory compliance, leading product strategy and client delivery.

Available to hire

I am Selvaraj Kannaiyan, founder and CTO, Enterprise Architect and AI & Cloud Platform Leader based in Wiesbaden, Germany. I bring 14+ years of end-to-end experience across banking, FinTech, SaaS, and AI-driven domains, delivering enterprise-grade architectures and scalable platforms with a hybrid Germany-India engineering model.

My strengths include event-driven architectures (Kafka), Camunda BPM, Java/Spring Boot microservices, Python AI/ML integration, and cloud-native deployments on AWS and Azure. I am passionate about building AI-powered SaaS and FinTech solutions with multi-tenant governance, data security, and regulatory compliance, leading product strategy and client delivery.

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Experience Level

Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
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Language

German
Intermediate
English
Fluent
Tamil
Fluent

Work Experience

Senior Application Architect at HCLTech
October 1, 2021 - August 1, 2025
Led architecture and delivery of Miles & More Credit Card Services, integrated with TSYS. Designed secure, scalable microservices using Spring Boot, Camunda BPM, and Kafka (Confluent). Implemented enterprise-grade security using Keycloak and JWT. Led 15+ engineers, mentored teams, and collaborated with stakeholders.
Senior Consultant at Capgemini
August 1, 2019 - October 1, 2021
Architected FX/FI Alert Breach Management Platform; implemented Camunda BPM workflows for regulatory approvals; built ReactJS dashboards integrated with AEM; implemented second-level identity validation workflows using PingID and Keycloak; developed REST and gRPC services using Java and Golang; deployed on AWS; mentored 15+ engineers.
Senior Consultant at Capgemini
December 1, 2017 - August 1, 2019
Architected and developed FX/FI alert breach management platform; built Camunda BPM workflows for regulatory approvals.
Assistant Manager at Citicorp Services India
January 1, 2017 - December 1, 2017
Developed FRTB analytics and risk calculation platforms.
Software Engineer at IBM / RBS
January 1, 2011 - December 31, 2017
Developed enterprise systems for Bank of America and RBS; Built IAM, SSO, and authentication systems using SAML; end-to-end development across front-end and back-end.
Software Engineer at IBM/RBS
January 1, 2011 - January 1, 2017
Developed enterprise systems for Bank of America and RBS. Built IAM, SSO, and authentication systems using SAML and Spring Security.
Founder & CTO at Yaazh Tech Software Solutions UG (haftungsbeschränkt)
January 1, 2026 - Present
Leading two strategic platforms: an Enterprise SaaS platform for SMEs and startups; and FRMS - Fundamental Review of Market Strategy, an AI-powered financial learning and strategy simulation platform. Architecting cost-effective, high-quality software solutions and guiding product delivery with an agile, architecture-driven approach; managing cross-functional teams and collaborating with business stakeholders.
Senior Application Architect at HCLTech Germany
October 1, 2021 - August 1, 2025
Led architecture and delivery of Miles & More Card Services; built real-time transaction pipelines using Kafka Streams, Kafka Connect, and Schema Registry; deployed services on Azure Kubernetes Service; implemented enterprise-grade security using Keycloak and JWT; led 15+ engineers; collaborated with business stakeholders on risk, compliance, and production readiness.
Founder & Chief Technology Officer at Yaazh Tech Software Solutions UG (Germany)
January 1, 2026 - Present
Founded a Germany-based technology consulting and product engineering company; leads architecture, product strategy, and client delivery across Europe and India using a hybrid German-Germany-based model. Responsible for setting technology direction, building partnerships, and delivering high-impact AI/Cloud platform solutions.
Senior Consultant at Capgemini Belgium
August 1, 2019 - October 31, 2021
Architected FX/FI alert breach management platform using Camunda BPM, Spring Boot microservices, Oracle, and Confluent Kafka; implemented real-time data streaming on Azure Kubernetes Service for scalable enterprise banking workflows.
Tech Architect at Verizon India
December 1, 2017 - August 31, 2019
Designed and delivered ATO M digital platform for B2B/B2C e-commerce using React SPA, Camunda BPM, Kafka with Confluent, and cloud-native deployments on Azure Kubernetes; implemented real-time alerting and workflow automation.
Software Engineer at Royal Bank of Scotland India Ltd
April 1, 2015 - January 31, 2017
Developed LOMS (Login Micro Manager Services) for RB S online banking with secure authentication, retail 4P S SL, PIN/password verification, and session token generation.
Assistant Manager at Citicorp Services India Ltd
January 1, 2017 - December 31, 2017
Designed FR TB analytics platform for trade finance risk management; built risk calculations and regulatory compliance reporting using Spring Boot, Kafka, and Confluence.
System Engineer at IBM India Private Limited
July 1, 2011 - September 30, 2014
Developed Risk Dashboard via Java, Struts 2.0, Oracle 11g; automated error detection with 8-hour refresh cycles; implemented data-access layers for risk analytics.

Education

B.Tech - Computer Science & Engineering at PSG College of Technology
January 11, 2030 - December 28, 2025
B.Tech in Computer Science & Engineering at PSG College of Technology
January 11, 2030 - February 5, 2026
B.Tech in Computer Science & Engineering at PSG College of Technology
January 11, 2030 - February 5, 2026
Bachelor of Technology (B.Tech) in Computer Science & Engineering at PSG College of Technology, Coimbatore, India
January 11, 2030 - January 1, 2011

Qualifications

Oracle Certified Java Professional
January 11, 2030 - December 28, 2025
Oracle Certified Java Professional
January 11, 2030 - December 28, 2025
Oracle Certified Java Professional
January 11, 2030 - February 5, 2026
Oracle Certified Java Professional
January 11, 2030 - February 5, 2026
Oracle Certified Java Professional
January 11, 2030 - February 5, 2026
Oracle Certification: Java Programmer
January 11, 2030 - February 24, 2026
Oracle 11g Database Fundamentals
January 11, 2030 - February 24, 2026
Service Excellence Award — IBM
January 11, 2030 - February 24, 2026
Spot Thanks Award — Royal Bank of Scotland
January 11, 2030 - February 24, 2026
Special Award — Verizon
January 11, 2030 - February 24, 2026
Client Appreciation — Bank of America
January 11, 2030 - February 24, 2026

Industry Experience

Software & Internet, Financial Services, Professional Services, Media & Entertainment, Other, Education