Hi, I am

Abhishek Chandel

A Backend Engineer

About Me

Backend Engineer with 8+ years of experience architecting, developing, and deploying mission-critical systems. Proven ability to lead and mentor cross-functional teams, delivering scalable solutions. Experience with various technologies including Spring Boot, Hibernate, Node.js, GCP, Kubernetes, Postgres and security best practices.

Experience

Mystifly

SDE-IV

  • Spearheaded the design and development of Mystipay (B2B virtual card payments system) Designed a multi-tenant system with robust user access controls, enabling secure and efficient operations for a diverse client base.
  • Collaborated with product management to define scope and deliver the first iteration of Mystipay on time and within budget.
  • Established CI/CD pipelines and implemented comprehensive observability systems to ensure continuous integration, delivery, and monitoring of the platform.
  • Introduced org-wide platform engineering practices, which embraces git-ops model. Streamlined CI/CD for all the environments, Designed framework for config-management for legacy apps. Created ability to create new environments on demand.
Tech Stack: Spring Boot, Hibernate, PostgreSQL, Docker, GCP, Kubernetes

Lummo

SDE-II

  • Led a team of 8 engineers, fostering collaboration and ensuring efficient project delivery across various initiatives.
  • Implemented a policy-driven authorization and authentication module for donut.cx that supports hybrid access control models, enabling secure and flexible access management for a large user base.
  • Developed and deployed Lummo-pay, an internal payment gateway processing significant transaction volumes for various teams within the company.
  • Championed high security standards by conducting regular security reviews and audits, collaborating with external agencies for additional assessments.
  • Established rigorous interview processes and mentored developers, contributing to the development of a strong engineering talent pool.
Tech Stack: Node.js, NestJS, Ruby on Rails, Kubernetes, Postgres, GCP, Elasticsearch, Redis

Falabella India

Lead Engineer

  • Led the development of a multi-tenant payment service from scratch, enabling secure and scalable payment processing for all Falabella Group companies across Latin America, handling millions of users and transactions.
  • Integrated diverse payment service providers to facilitate various payment methods (one-step and two-step) for a global customer base.
  • Scaled the service to process over $100 million in payments during Chile's three-day Cyber Monday event on falabella.com, demonstrating exceptional scalability and performance.
  • Designed and implemented a robust fraud detection system that effectively protects against fraudulent transactions while scaling proportionately to payment volume.
  • Developed split payment and asynchronous payment functionalities, enhancing the payment processing capabilities for complex business scenarios.
  • Achieved and maintained a test coverage rate exceeding 90%, ensuring high code quality and reliability.
Tech Stack: Node.js, Fastify, PostgreSQL, Kubernetes, Docker, Google PubSub, Command Pattern, Event Sourcing, Sagas, Transactional Outbox

Velotio Technologies

Software Engineer

Miro: Developed and maintained a platform for conducting cognitive research, analysing data from multiple games and questionnaires. Tech Stack: Python, Django, React, Redux, Redux-Sagas, Material Design)
Macrometa (Database at the Edge): Designed, developed, and deployed monitoring system.

    Tech Stack: C++, Node.js, Go, ReactJs, BackboneJs

    Gamooga

    Software Engineer

    • Played a key role in migrating the backend from Python to Node.js, significantly improving performance and scalability.
    • Played a vital role in redesigning and rewriting of the frontend using React, enhancing user experience and maintainability.
    • Rewrote the existing chat system from Python to Nodejs
    • Created a custom bot builder which used this chat system as a communication medium and it was capable of calling APIs, persisting in memory state, collecting analytics and running JS code.
    Tech Stack: Python, Node.js, Aerospike, ReactJs, Mysql, Redux, Redux-Sagas

    Education

    NIT Bhopal

    June 2012 - May 2015

    Master of Computer Applications

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