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Software engineer with 6 years of experience in backend and full-stack development. I design system architecture, break down tasks, coordinate with the team to ensure timely delivery, and focus on building fast, reliable APIs. I specialize in performance optimization, improving slow database queries, and scaling systems for heavy usage. I’ve worked extensively with Node.js, Ruby on Rails, React, and TypeScript, and I also lead teams and coordinate with stakeholders to deliver production-ready features.…Software engineer with 6 years of experience in backend and full-stack development. I design system architecture, break down tasks, coordinate with the team to ensure timely delivery, and focus on building fast, reliable APIs. I specialize in performance optimization, improving slow database queries, and scaling systems for heavy usage. I’ve worked extensively with Node.js, Ruby on Rails, React, and TypeScript, and I also lead teams and coordinate with stakeholders to deliver production-ready features.

Mayank Singla

Software Engineer, Full Stack Developer, Back-End Developer, +1

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Software engineer with 6 years of experience in backend and full-stack development. I design system architecture, break down tasks, coordinate with the team to ensure timely delivery, and focus on building fast, reliable APIs. I specialize in performance optimization, improving slow database queries, and scaling systems for heavy usage. I’ve worked extensively with Node.js, Ruby on Rails, React, and TypeScript, and I also lead teams and coordinate with stakeholders to deliver production-ready features.…Software engineer with 6 years of experience in backend and full-stack development. I design system architecture, break down tasks, coordinate with the team to ensure timely delivery, and focus on building fast, reliable APIs. I specialize in performance optimization, improving slow database queries, and scaling systems for heavy usage. I’ve worked extensively with Node.js, Ruby on Rails, React, and TypeScript, and I also lead teams and coordinate with stakeholders to deliver production-ready features.

Available to hire

Software engineer with 6 years of experience in backend and full-stack development. I design system architecture, break down tasks, coordinate with the team to ensure timely delivery, and focus on building fast, reliable APIs.

I specialize in performance optimization, improving slow database queries, and scaling systems for heavy usage. I’ve worked extensively with Node.js, Ruby on Rails, React, and TypeScript, and I also lead teams and coordinate with stakeholders to deliver production-ready features.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Hindi

Advanced

English

Advanced

Work Experience

Tech Lead at GameChanger Solutions

November 1, 2023 - Present

Led major WhatsApp services including messaging, campaigns, and chatbot flows built with Ruby on Rails and PostgreSQL. Scaled broadcasting to 100k+ messages and implemented an SQS queue to prevent webhook message loss during high traffic. Owned backend for AI agentic bots, building context and memory layers (message history, key-value storage, and chat summaries) to keep conversations coherent across calls. Added Claude.md files and custom skills to help AI coding tools understand the architecture and reduce repetitive effort. Partnered with enterprise clients to create custom WhatsApp bots and automation; planned architecture, split work across the team, performed code reviews, and ensured on-time delivery. Improved onboarding time by 40% and reduced SDLC time by 60%.

Senior Software Engineer at AiSensi

September 1, 2022 - November 1, 2023

Built and owned two major products from scratch: Click-to-WhatsApp Ads and WhatsApp Pay for businesses. Achieved good adoption and was highlighted at Facebook marketing events. Set up complete CI/CD pipelines using AWS CodePipeline and Elastic Beanstalk. Managed cloud setup and deployments using Lambda, CloudWatch, Amplify, and S3. Optimized messaging APIs to handle Facebook rate limits (800 requests/sec) by handling edge cases and failure scenarios to keep the system stable during high-volume campaigns.

Software Engineer at Byju’s

November 1, 2020 - September 1, 2022

Built the Customer Management System (CxMS) from scratch and made it the main platform for handling customer data across the company. Designed and developed Byju’s closed-loop wallet system end-to-end using Node.js, React, Next.js, MongoDB, and PostgreSQL. Migrated wallet data from MongoDB to PostgreSQL for better performance. Led a team of 3 developers, managing sprint planning, task breakdown, and daily standups.

QA Automation Engineer at Estar Pvt Ltd.

March 1, 2020 - November 1, 2020

Automated testing for three web applications using Selenium with Java. Covered smoke, regression, and functional testing to improve release quality and reduce manual effort.