Dhananjay Singh

Backend Developer

Navi Mumbai, Maharashtra 5+ yrs exp 95 · Outstanding

About

Automation-focused Backend Developer and Assistant Manager with 5+ years of experience building production-grade Python applications, Django REST Framework APIs, and MIS automation systems. Proven ability to reduce manual effort by 40–60% through process automation using Python, OpenPyXL, and Linux Cron Jobs. Experienced with PostgreSQL, Redis, FastAPI, NestJS, GitHub, Postman, PM2, Terminus, and AWS EC2 server management via SSH. Adept at writing clean, OOP-based code that scales.

Skills & Expertise (26)

REST APIs Advanced

8.5/10

Years Exp

Git Advanced

8.5/10

Years Exp

Python Advanced

8.2/10

Years Exp

Django Rest Framework Advanced

8.0/10

Years Exp

Django ORM Advanced

8.0/10

Years Exp

AWS EC2 Advanced

8.0/10

Years Exp

LINUX Advanced

8.0/10

Years Exp

Postgresql Advanced

8.0/10

Years Exp

JavaScript Intermediate

7.5/10

Years Exp

Redis Intermediate

7.5/10

Years Exp

Postman Intermediate

7.5/10

Years Exp

NestJS Intermediate

7.0/10

Years Exp

FastAPI Intermediate

6.5/10

Years Exp

Swagger Openapi Token-based authentication JWT GitHub PM2 Terminus Shell Scripting OpenpyXL MIS Automation process automation Task scheduling SMTPLIB

Work Experience

Assistant Manager

Autosys Industrial Solutions Pvt. Ltd.

May 2025 - Present

Promoted to Assistant Manager overseeing backend operations, deployment workflows, and cross-team coordination for 3+ active projects. Led automation initiatives reducing manual operational overhead by ~35% across multiple business units. Managed server-side execution, deployments, and live monitoring on AWS EC2 instances via SSH using Terminus, PM2 (start / stop / restart / logs / monit / ecosystem config) and Linux shell commands. Used Postman for API testing and validation across all backend services before production deployment. Applied OOP principles and code review practices to maintain high code quality and reusability across all backend services.

Senior Software Developer

Autosys Industrial Solutions Pvt. Ltd.

Dec 2022 - May 2025

Built and maintained Python automation scripts using OOP design patterns, reducing manual operational turnaround time by ~40%. Automated MIS reporting pipeline using Python, OpenPyXL, and Linux Cron Jobs to schedule and auto-send dynamic multi-sheet Excel reports via SMTP email (smtplib) to management daily — cutting report turnaround time by ~60% with zero manual intervention. Designed and deployed production-grade REST APIs using Django REST Framework and Django ORM with PostgreSQL and Redis caching for optimized performance. Contributed to backend NestJS API modules for microservice-style production services, improving system modularity.

Software Developer

Autosys Industrial Solutions Pvt. Ltd.

Jul 2021 - Nov 2022

Developed backend features and contributed to REST APIs using Node.js and NestJS with GitHub-based version control, pull requests, and branch management. Applied OOP design patterns across multiple modules, improving code structure and reducing duplication by ~25%. Implemented JSON-based data integration workflows enabling seamless communication between backend services.

Software Intern

Autosys Industrial Solutions Pvt. Ltd.

Dec 2020 - Jun 2021

Assisted in Python scripting, automation tasks, and software development workflows as part of the core development team. Gained hands-on experience with REST APIs, Git version control, and agile team collaboration practices.