Mayank Singh

About Mayank Singh

I’m a Senior Lead Software Engineer (DGM) with over 10 years of experience in backend Java development, building scalable, secure, and high-performing systems in the fintech and telecom payments domain.I lead the payments backend engineering at Bharti Airtel, driving system modernisation, performance optimisation, and seamless digital payment experiences across multiple platforms. I have successfully led the migration to Java 21 and Spring Boot 3.x, ensuring PCI DSS–compliant APIs and integrating multiple payment gateways to deliver secure, scalable, and highly available transaction systems.I’m passionate about clean architecture, microservices design, and solving complex engineering challenges that enhance user journeys and business outcomes. I enjoy mentoring teams, collaborating across functions, and exploring how AI and Large Language Models (LLMs) like ChatGPT, Claude, and Llama can power application tuning and automation.Core Skills: Java | Spring Boot (3.x)| Microservices | RESTful APIs | System Design Oracle | MySQL | MongoDB | Elasticsearch | Aerospike Agile | CI/CD | AppDynamics | OpenShift (OCP)| Grafana | Kibana API Security | PCI DSS Compliance | Payment Gateways Integration AI/LLMs | Prompt Engineering | Google Colab Experimentation

Experience

1. Dgm(Senior Lead Engineer)

   Airtel Digital

   Sep 2024 — Present · Gurugram, IN

Education

• Guru Ghasidas University

  Bachelor of Technology - BTech, Information Technology

  2010 — 2014

Skills

• Servlets
• Data Structures
• Css
• Java Enterprise Edition
• Oracle Database
• C++
• Oracle Application Development Framework (Adf)
• Microsoft Sql Server
• Web Services
• Programming
• Php
• Design Patterns
• Representational State Transfer (Rest)
• Cascading Style Sheets (Css)
• Sql
• Hibernate
• Plsql
• J2ee
• Javascript
• Struts
• Algorithms
• Java
• Mysql
• .net Framework
• C#
• .net
• Jsp
• Mvvm