Grijesh Chauhan

Backend Engineer

Delhi, India12 yrs 6 mos experience

Most Likely To SwitchHighly Stable

Key Highlights

12+ years of experience in software engineering
Expert in Python and backend system development
Proven track record in mentoring and team leadership

Stackforce AI infers this person is a Backend-focused Software Engineer with expertise in Healthcare and Fintech sectors.

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Skills

Core Skills

PythonAwsAutomationReverse EngineeringDjangoC++C

Other Skills

AWS: S3AWS: SNSAWS: LambdaAWS: CloudFormationAWS: CloudTrailAWS: CloudWatch DashboardETLDBTDatadogBashDRFPandasAngularJSPostgreSQLNumPy

About

A passionate software engineer with 12+ years of experience designing and delivering production-grade software across diverse domains. Known for strong programming fundamentals and deep technical interest, with experience in building reliable backend systems, analyzing complex codebases, and developing data transformation pipelines. Proficient in Python and experienced in C through research and learning. Currently serving as Python Practice Lead, heading a competency group of 30+ engineers. I drive hiring, mentorship, skill development, and bench management while fostering a culture of knowledge sharing through technical talks, blog reviews, and internal meets. I enjoy teaching scholars and mentoring junior colleagues. Active contributor on StackOverflow and StackExchange: ☞ http://stackoverflow.com/users/1673391/grijesh-chauhan  ☞ http://cs.stackexchange.com/users/5000/grijesh-chauhan

Experience

Kyruus health

Staff Software Engineer

Apr 2020 – Apr 2025 · 5 yrs · India · Remote

° Maintained and supported legacy ETL pipeline; developed and migrated-customers to modern DBT pipeline
° Onboarded new hospitals into the system through a combination of code implementation and configuration management
° Upgraded systems from Python 2.7 to Python 3.9, ensuring compatibility and improved performance
° Integrated Datadog with AWS; built monitoring pipelines to visualize ingestion success/failure, and configured alerts for exceptions and outages
° Reduced manual workload by automating frequent tasks with Bash scripts—searching and fetching data, analyzing logs, and validating AWS access
° Investigated system limitations and proposed effective solutions aligned with business objectives
° Served on-call responsibilities to monitor and support the data ingestion pipeline, handle escalations, declare outage and explain incident, logging defect tickets for follow-up
° Performed in-depth reverse engineering of a 16-year-old legacy application to reconstruct undocumented business logic. Leveraged diverse sources—including input source files, Python code, Trifacta recipes, configuration files, Confluence pages, and historical support tickets. Developed a comprehensive data lineage grid to support the needs of the support, Data Quality Analysis (DQA), and product engineering teams
° Hosted office hours to mentor team members and assist them to successfully completing their assignments
° Developed PHI-labeling: A cloud based automated tagging system to grant access to contractor engineers on S3 objects based on regex whitelist configurations. The tool also provision auditioning system on AWS CloudDashboard.
Tools: Python, AWS: S3, SNS, Lambda, CloudFormation, CloudTrail, CloudWatch Dashboard

PythonAWS: S3AWS: SNSAWS: LambdaAWS: CloudFormationAWS: CloudTrail+2

To the new

Associate Technical Lead

Oct 2019 – Present · 6 yrs 5 mos · Noida, Uttar Pradesh, India · On-site

Retech labs

Tech Lead (Sprint Manager)

Jun 2018 – Apr 2019 · 10 mos · Noida, Uttar Pradesh, India · On-site

SAS is a web-based application to manage workforce and operation activities including billing and payroll systems for the US-based large-scale warehouse and stores.
Tools: Python, Django, DRF, Pandas, AngularJS, PostgreSQL
Responsibilities:
° Managing end-to-end delivery of JIRA Script
° Ticket analysis, estimation, ticket assignment
° Code Review, UI integration
° Quality assurance

PythonDjangoDRFPandasAngularJSPostgreSQL

Gemini solutions pvt ltd

Senior Software Engineer

Oct 2017 – May 2018 · 7 mos · Gurugram, Haryana, India · On-site

Worked on Proteus, a PIMCO’s legacy stress-test and risk calculation engine to build automated risk consultancy and management systems for fixed income investment firms.
Migrate a legacy and cryptic C++ code into a well-documented, mature object-oriented Python code using the Pandas library.
C++, Python, NumPy, Pandas, Oracle

C++PythonNumPyPandasOracle

Span across it solutions private limited

Software Engineer

Nov 2013 – Jul 2017 · 3 yrs 8 mos · New Delhi

Designed and developed complete TDS return preparing-cum-efiling system from scratch that has been publicly released and served to file over thousands of returns successfully. The product is consists of more than 25 apps, implementing 100 of sophisticated features including excel import/export, web-scrapping, return review and report, Bulk PAN validation on celery etc.
Tools created:
⇨ webrequests:- provides a framework to implement complex web scraping tasks in the organized and reliable way in the form of Python class-based WebAPIs.
⇨ excel reader:- can be used to import excel to p1opulate Django database.
Proposed and implemented the "Generic Parser" as an automation engine to parse different types of TDS certificates (PDF) to make e-filing easy. The "Generic Parser" is matured object oriented Pythonic code, proved very effective and useful that is capable to successfully parse more than 99% Form16s without any prior TAN file configuration, can be easily extended to support incorrect (typo) Form16s with minimal modifications, debugging and testing effort. The work involved a great deal of text processing, analysis, efficient coding, rigorous testing, and documentation skills.
Developed "Efile By Upload" (EBU) and "Efile By Email" (EBE) — two intelligent Python applications used to Auto process TDS certificates, review and file uploaded returns, perform auto login, send failure alarms and respond back to user and tech-team or/and support-team.
Tools: Python, Django, PostgreSQL, JavaScript, AngularJS

PythonDjangoPostgreSQLJavaScriptAngularJS

Codescape consultants private limited

Associate Software Engineer

Jan 2012 – Jan 2013 · 1 yr · Jaipur

Proposed and developed user module of UNMP system (Shyam Networks's NMS), which is used to manage users and devices with multiple roles and provides region wise access control in hierarchical form to a privileged user.
Developed user authentication module of UNMP system, which includes features like Password Expiry, Password Complexity, Maximum Wrong Login Attempts, Automatic Password Generation, Forget Password, etc.
Developed open library based MIB translator to build an automation tool that will accelerate configuration of new device in the existing system.
Written Nagios plugins to measure HTTP, TCP, UDP, DNS performance in network as part of QoS and QoE feature.
Tools: C, Python, JavaScript, AJax, MySQL, Net-SNMP, Libsmi

CPythonJavaScriptAJAXMySQLNet-SNMP+1