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Technical Skills

Languages: Solidity (Recent), Python (Recent), Javascript (Can work), Elixir, Go lang (Familiarity only)

Blockchain : Ethereum (PoW, PoA) - Hands on, Hyperledger (Academic Knowledge)

DevOps : Handled deploying ALL of my products on the server (Webfaction, Heroku, Digital Ocean, AWS)

Web Frameworks : Pylons, Flask, Eve

Version Control Systems : Git

Database : PotsgreSQL (Recent), MySQL (Past)

Social Links

Work experience

Feb 2018Present

Blockchain Consultant

Aeries Technology Group

I worked on two blockchain projects in Aeries

1. Blockchain support for CASHe app

2. Legal Contracts on Blockchain

Refer to - for POC work.

July 2012Feb 2018

Chief Architect

OneDelta Synergies Private Limited.

In OneDelta, I created Three Products from Requirements to Design to Release. When the product was stable, other team members were hired, and I moved to the next project.
With each new project I incorporated the lessons learned from previous project and introduced new framework, database or development methodology.

  • Clickcab : Cab booking platform for the Corporate Taxi Hiring companies. (Aug 2015 - Present)

The features include :

  • Notifications of booking acceptance, vehicle arrival and Invoice amount via the android app, as well as SMS.
  • Instant invoice email (and SMS) sent asynchronously at the end of the ride.
  • Role based access control means different login has access to the functionality allowed to that role, and to the login.

Tech Stack : Eve (Flask based) REST API framework, PostgreSQL, Heroku, Google Maps API, Google Distance Matrix API, Automated testing using pytest 

Java for the Android app, AngularJS for the frontend : These parts were outsourced initially, later handled by other team members.

Msg91 used for SMS notifications.

  • Transaxions : Document Repository for the VCs (May 2014 - Aug 2015)

Tech Stack : Web2py, PostgreSQL, Webfaction

  • Complius : Legal Compliance Management (July 2012 - May 2014)

Complius is built on the unique algorithm that matches numerous acts and rules of the Indian law with 5 different parameters for a specific company. It then generates the list of various activities that a company needs to comply with at various intervals.

Access control mechanism allows various users to see "tasks" assigned to them based on their role and location.

Tech Stack : Web2py, MySQL, Webfaction

Sep 2011June 2012

Freelance Software Engineer

Various Projects Include :

Operations platform for Managing co-working spaces. 

Flask, Python, Javascript

Porting OpenFOAM to Windows (C++)

Payroll Management System(J2EE)

Oct 2010Aug 2011

Software Engineer

Vayana Services

Worked as a One Person team on Vayana's Online Bill Presentment and Payment Solution for SME customers, which helps their customers pay the bills using Creditcard and/or ACH

Technology Stack : Python, Pylons Web framework, MySQL, AWS

Responsibilities included :

  • Feature Development
  • Integration with various payment gateways :
    • Chase Payment Tech
    • ORCC
    • Transfirst
  • Deploy New Build
  • Customer Support
Sep 2009Sep 2010

Senior Module Lead

Avaya India Pvt. Ltd
  • Joined the team as Linux/OS/networking expert
  • Owned the LDAP integration and user management modules
  • ISO Audit lead for the Product team
Oct 2004Sep 2008

Technical Manager

Avaya India Pvt. Ltd

Managed teams from 4 to 12 engineers working on Avaya’s flagship Product Communication Manager, SIP Enablement Services and Distributed Office.

Technical Manager

  • Managed multiple teams
  • Worked with various counterparts in US and Japan

Project Manager for SUSHI Project

  • Gained Trust and developed excellent working relationship with Japan Team
  • SUSHI Project team was awarded Avaya Labs Cup


  • Single Point of Contact for Hiring activities at NIT Warangal
  • Active Participation in organizing First Software Symposium in Avaya Pune
    Dec 2000Sep 2004

    Technical Lead

    Bigates Software Pvt. Ltd

    Product: Avaya’s multimedia call center solution that integrates different communication channels of contacts like Voice over PSTN, Email, Live Chat, VoIP and enables companies to deliver personalized sales, support and service in a consistent fashion.

    Responsibilities :

    • Technical Lead of Tier IV Engineering Team :
    • Technical Lead for Development Team :
      • Architect and lead developer for Generic Patch Installer for Avaya products using Installshield multiplatform.
    • Internal Auditor for ISO 9001:2000. Founding member of Quality council
    Oct 1998Oct 2000

    Senior Software Engineer

    Legato Systems Inc (Now part of EMC)
    • Networker module to support online back up and backup of transaction logs of Lotus Domino Server 4.x/5.x on various platforms including Windows NT, Solaris, AIX and SuSE Linux 7.x
    • Bare metal Disaster recovery solution for SCSI disks attached to Solaris (SPARC) machines. The solution used Legato Networker as backend for data protection.
    Jun 1995Sep 1998

    Software Engineer

    Software Moguls
    • MN, USA : May 1997-Sept 1998 : Development of new features as well as providing Engineering support to the customers.
    • Noida, India : June 1995 – May 1997 : Development of the Enterprise Network backup and recovery software (SM-arch).



    Ashwin Kumar

    “Mandar was a good asset to the team, being a able problem solver, and a strong technical contributor, particularly in Unices technology areas, and open source development. He was well respected by his peers and team mates.” May 1, 2007

    Ashwin Kumar, Director, Bigates