Rajesh Singh

About

Summary Software Architect with 25 years of IT experience, specializing in Core Banking, AI/ML integration, and enterprise architecture. Proven track record in designing scalable solutions, leading cross-functional teams, and driving digital transformation in financial institutions. Recognized for strategic problem-solving, innovation, and mentoring. Architected DNA core banking platform at Fiserv with AI-driven fraud detection and performance optimizations; led migrations from legacy systems to modern .NET architectures for international banks; skilled in DNAcreator, Copilot-assisted development, CI/CD, and cloud enablement. Committed to delivering scalable, secure, and regulatory-compliant solutions across multi-region financial ecosystems. Core Skills · Architecture & Design: Client-Server, Multi-Tier, SOA, AI-Assisted Architecture · Core Banking Expertise: Fiserv DNA, DNAcreator, real-time transaction processing, payment gateways, regulatory compliance · AI/ML & Automation: GitHub Copilot, Python, Generative AI, automation scripts · Cloud & DevOps: CI/CD pipelines · Databases: Oracle, SQL Server, PL/SQL, NoSQL databases · Leadership: Team mentorship, offshore-onsite coordination, stakeholder management, agile methodologies Professional Experience Architect – Fiserv India Pvt. Ltd (2016–2026) · Architected and optimized Fiserv DNA core banking platform, ensuring scalability and seamless fintech integration. · Architected AI-driven fraud detection models leveraging C# with ML.NET and Copilot-assisted enhancements, improving anomaly detection accuracy and scalability. · Directed system performance optimization, reducing transaction processing time by 30%. · Spearheaded custom application development using DNAcreator, enhancing customer engagement. · Mentored teams in AI-assisted development, accelerating delivery cycles by 40%. Associate Technical Architect – R Systems Intl. Ltd (2005–2015) · Led architectural migration from Centura to .NET framework, ensuring scalability and robustness. · Defined system architecture for international banking clients (BAAC, Thailand). · Directed requirement studies and integration strategies for Lottery Systems, Youth Savings Accounts, and Passbook Transaction Control. · Provided architectural oversight, ensuring compliance with enterprise standards and reducing downtime during upgrades. · Collaborated with cross-functional teams to implement agile development practices, improving project delivery timelines. Team Leader – Trisoft Systems Pvt Ltd (2004–2005) · Led deployment, coding, and testing of the ePOS system for Hutchison Essar Telecom Ltd.; managed customer information and inventory of SIM cards; integrated with the airtime billing system; oversaw deployment in various regions; re-architected the application to handle increased data and users. Programmer – Omega Net India Pvt Ltd (2003–2004) · Developed an Office Automation System for DS Constructions; system logged project status and daily operations; managed tasks and documents; included features like automatic alerts, messaging, and a document management system with role-based security.

Experience

• Advisor Software Development Engineering · Fiserv India Pvt. Ltd12-01-2015 – 03-01-2026

  Architected and optimized Fiserv DNA core banking platform, ensuring scalability and seamless fintech integration. Architected AI-driven fraud detection models leveraging C# with ML.NET and Copilot-assisted enhancements, improving anomaly detection accuracy and scalability. Directed system performance optimization, reducing transaction processing time by 30%. Spearheaded custom application development using DNAcreator, enhancing customer engagement. Mentored teams in AI-assisted development, accelerating delivery cycles by 40%. It reflects a synthesis of DNA platform engineering with enterprise AI capabilities, aligned to ongoing DNA ecosystem enhancements and cross-functional collaboration across regional teams.

• Associate Technical Architect · R Systems08-01-2005 – 12-01-2015

  Led architectural migration from Centura to .NET framework, ensuring scalability and robustness. Defined system architecture for international banking clients (BAAC, Thailand). Directed requirement studies and integration strategies for Lottery Systems, Youth Savings Accounts, and Passbook Transaction Control. Provided architectural oversight, ensuring compliance with enterprise standards and reducing downtime during upgrades. Collaborated with cross-functional teams to implement agile development practices, improving project delivery timelines.

• Team Leader · Trisoft Systems Pvt Ltd04-01-2004 – 08-01-2005

  Led deployment, coding, and testing of the ePOS system for Hutchison Essar Telecom Ltd. The system managed customer information and inventory of SIM cards, integrated with the airtime billing system, and generated numerous reports. Oversaw deployment in various regions and re-architected the application to handle increased data and users.

• Programmer · Omega Net India Pvt Ltd12-01-2003 – 04-01-2004

  Developed an Office Automation System for DS Constructions; system logged project status and daily operations; managed tasks and documents; included features like automatic alerts, messaging, and a document management system with role-based security.

Education

• Magadh UniversityISc, BSc, Physics, Chemistry, Mathematics

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