Sagar Das

Director of Engineering

Kolkata, West Bengal, India5 yrs 4 mos experience
Most Likely To SwitchHighly Stable

Key Highlights

  • Led development of a cloud-based CRM application.
  • Strong expertise in Java and AWS technologies.
  • Background in mechanical systems design and compliant mechanisms.
Stackforce AI infers this person is a SaaS-focused Engineering Lead with strong expertise in Java and cloud technologies.

Contact

Skills

Core Skills

JavaUser ExperienceAmazon Web Services (aws)Core JavaManagement

Other Skills

Application PerformanceProblem SolvingJavaFXJava ConcurrencyGarbage CollectionMultithreadingEclipseDebuggingTensorFlowWritten CommunicationDesign PatternsTroubleshootingPresentation SkillsCommunicationPandas (Software)

About

As an Engineering Lead at Persistent Systems, I work on developing and maintaining IBM TNCP, a cloud-based platform that enables telco operators to monitor and optimize their network performance. I use my skills in C++, Java, Python, Go and Scala to create scalable and robust web applications that integrate with various IBM services and technologies. I have a strong background in mechanical systems design, with a M.Tech degree from IIT Kharagpur, one of the top engineering institutes in India. My master's thesis focused on compliant mechanisms, which are flexible structures that can perform complex motions without joints or hinges. I developed a python-based framework to model and analyze the behavior and performance of these mechanisms, using object-oriented programming and Anaconda. I also have a B.Tech degree in aerospace engineering from IIEST Shibpur, where I learned the fundamentals of fluid dynamics, aerodynamics, and propulsion.

Experience

5 yrs 4 mos
Total Experience
2 yrs 8 mos
Average Tenure
4 yrs 9 mos
Current Experience

Persistent systems

3 roles

Engineering Lead

Promoted

Oct 2025Present · 7 mos · Hybrid

  • Led the end-to-end development and maintenance of the Sell CRM for Zendesk.
  • Implemented seamless authentication and authorization processes to enhance user experience.
  • Upgraded the application using the latest Java technologies, significantly reducing development overhead.
  • Improved application performance for both web and mobile platforms, enhancing user satisfaction.
JavaUser ExperienceApplication Performance

Lead Software Engineer

Apr 2023Sep 2025 · 2 yrs 5 mos · Hybrid

Amazon Web Services (AWS)Problem Solving

Senior Software Engineer

Jul 2021Apr 2023 · 1 yr 9 mos · Hybrid

Core JavaProblem Solving

Indian institute of technology, kharagpur

Graduate Teaching Assistant

Sep 2020Apr 2021 · 7 mos · Kolkata, West Bengal, India

ManagementProblem Solving

Education

Indian Institute of Technology, Kharagpur

M.Tech — Mechanical Systems Design

Jan 2019Jan 2021

Indian Institute of Engineering Science and Technology (IIEST), Shibpur

B.Tech — Aerospace Engineering

Jan 2015Jan 2019

Jadavpur Vidyapith

High School Graduation — High School/Secondary Diplomas and Certificates

Jan 2007Jan 2015

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