Hello, I'm

Mayank Singla

I'm a

I build scalable, secure systems — from full-stack CRM platforms and payment engines to the offensive side of security.

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01 — About

About Me

Portrait of Mayank Singla

Hi there! I'm Mayank — a Software Developer who likes shipping things that scale.

I hold a B.E. in Computer Engineering from Thapar Institute of Engineering & Technology, with a foundation in Web Development, Data Structures & Algorithms, Database Management, Computer Networks, Network Security, Secure Coding, Cyber Forensics, and Ethical Hacking.

Today I work across the full stack — designing scalable backend architecture, building CRM and payment integrations, and leading delivery — while keeping a hacker's eye for how systems can break.

Languages

EnglishFull Professional Proficiency
HindiNative / Bilingual
PunjabiNative / Bilingual
02 — Education

Academic Journey

2016

10th — CBSE

DAV Public School, Patiala

10.0 CGPA
2018

12th — CBSE (Non-Medical)

DAV Public School, Patiala

82%
2022

B.E. Computer Engineering

Thapar Institute of Engineering & Technology, Patiala

7.57 CGPA
03 — Experience

Work Experience

Software Developer (Full Stack)

Outplay · Mohali, Punjab

Jan 2025 — Present
  • Architected CRM integrations across 5 platforms (Salesforce, HubSpot, Crelate, Pipedrive, and Zapier), enabling seamless data synchronization that cut manual data entry by 60%.
  • Launched WhatsApp Business API integration for automated messaging and notifications, processing 10,000+ outbound messages daily at 99.9% delivery reliability.
  • Engineered dialer functionality across Twilio, Plivo, and FreJun with call management and logging, reducing average call setup time by 35%.
  • Secured 8+ third-party integrations with OAuth 2.0 authentication and authorization flows.
  • Leveraged Apache Kafka for event-driven asynchronous processing across 12+ microservices, handling 500K+ events per day.
  • Designed customizable workflow automation modules that improved operational efficiency by 45% and supported 30+ enterprise clients.
  • Led a team of 5 developers by assigning tasks, conducting 100+ code reviews, and providing technical guidance to ensure timely, high-quality delivery.
  • Drove system architecture design for 6+ new features, including database schema design, service/code flow planning, and scalable backend architecture decisions.

Product Engineer (.NET)

Smart Energy Water · Noida, Uttar Pradesh

Jul 2022 — Dec 2024
  • Built a high-performing RESTful ASP.NET Web API with Entity Framework & LINQ, serving 1M+ daily requests with seamless data retrieval and modification.
    • Hardened application security with robust authentication and authorization mechanisms, protecting sensitive data for 200K+ users.
    • Optimized API performance by refining query processes and data retrieval methods, reducing average response time by 40% and increasing overall system efficiency by 25%.
    • Migrated 80+ SQL-based stored procedures to a LINQ-based API, delivering a 50% performance improvement and a significant boost in query efficiency.
  • Delivered a ReactJS billing module supporting Card, Bank, PayPal, GPay, and ApplePay, now processing over 50,000 transactions daily.
    • Connected 4+ payment gateways (Chase, PayPal, SAP, and Kubra), ensuring seamless transaction processing and a superior user experience.
  • Owned production support for Payments, AutoPay Scheduler, and IVRToPay, improving system availability to 99.8% while promptly resolving issues and shipping enhancements.
    • Streamlined the Auto Pay and Reconciliation Schedulers, reducing processing time by 40% and decreasing error rates by 30%.
Relieving Letter

Product Engineering Intern (.NET)

Smart Energy Water · Noida, Uttar Pradesh

Jan 2022 — Jun 2022
  • Built 10+ customizable Smart Templates for work orders, inventory, and assets using HTML, CSS, JavaScript, jQuery, Bootstrap, and ASP.NET with drag-and-drop functionality, reducing template creation time by 30%.
  • Implemented w2ui interactive grids and Highcharts visualizations, increasing user engagement with data insights by 40%.
    • Enabled multi-format export (PDF, Excel, HTML, CSV) across data grids, improving data accessibility by 25%.
  • Developed an interactive LeafletJS map with marker clustering and lasso selection, boosting geographical data visualization efficiency by 50%.
Training Certificate
Achievements

Awards & Recognition

Recognition earned across my career for ownership, consistency, and delivering work that makes a measurable impact.

Employee of the Quarter

Outplay

View Certificate

Award of Excellence

Smart Energy Water

View Certificate

Award of Excellence

Smart Energy Water

View Certificate

Award of Excellence

Smart Energy Water

View Certificate

Award of Excellence

Smart Energy Water

View Certificate
04 — Projects

Selected Projects

01

Fresco

A web application project showcasing front-end and full-stack development with a live deployed demo.

WebFull-Stack
Code Live Demo
02

Tax Calculator

A clean, responsive tax computation tool — deployed and live on GitHub Pages.

JavaScriptUI
Code Live
03

Ethical Hacking

A collection of offensive-security tooling and scripts exploring exploitation techniques and network attacks.

SecurityPython
Code
05 — Skills

Skills & Expertise

Full-Stack Development Web Development REST APIs System Architecture Microservices API Integration Database Management Data Structures Algorithms Computer & Network Security Secure Coding Cyber Forensics Ethical Hacking

Languages

C#, C/C++, Java, Python

Web

ASP.NET Core, ASP.NET, HTML, CSS, JavaScript, Node.js

Databases

MSSQL, PostgreSQL, LINQ, SQL, MongoDB

Frameworks / Libraries

Entity Framework, React, Angular, Express, Bootstrap, jQuery, W2UI, Highcharts, LeafletJS

Tools

Azure DevOps, Git, Linux, Visual Studio, VS Code, Postman, Jira, Jenkins, Kafka, Redis, MS Power Automate, NetBeans

Security

Buffer Overflow, Shell Shock, PE Code Injection, MITM, ARP/DNS Spoofing, XSS, SQL Injection, Metasploit

Integrations & APIs

REST APIs, OAuth 2.0, Salesforce, HubSpot, Pipedrive, Zapier, Twilio, Plivo, WhatsApp Business API, Payment Gateways

Architecture & Concepts

Microservices, Event-Driven Architecture, System Design, Database Schema Design, Workflow Automation, CI/CD, Agile

AI Tools

GitHub Copilot, Cursor, Claude Code, ChatGPT, Codex

06 — Contact

Get In Touch

Have an opportunity or just want to say hi? My inbox is always open.

Location

Patiala, Punjab

Phone

+91 94646 00198

Email

mayanksingla34@gmail.com