1. Tech Mahindra Limited
Infocity, Hi-tech City Layout,
Madhapur, Hyderabad 500081,
India.
Tel: +91 40 3063 6363
Fax: +91 40 2311 7011
techmahindra.com
Connect@techmahindra.com
Registered Office:
Gateway Building, Apollo Bunder
Mumbai 400 001, India
CIN L64200MH1986PLCO41370
Date: July 30, 2015
Ref: HR/2015/ 21357
TO WHOMSOEVER IT MAY CONCERN
This is to certify that Mr. SARAVANASELVAN SENGUTTUVAN is employed from 07 June 2004 to 11 September 2009
with Tech Mahindra (Erstwhile Satyam Computer Services Ltd. (Brand: Mahindra Satyam) which is formally amalgamated with
Tech Mahindra Ltd. effective 24th
June 2013) in the role of DEVELOPER with band
T-1.
Roles & Responsibilities:
 Application development using Core Java 1.6, Spring framework, Hibernate, Oracle as DB, Solaris as platform.
 Developed a third party payment system integrated with online portal using core Java1.5, JSP, Hibernate, Oracle 9i.
Handled all the security measures to make secured handshakes with the third party sites.
 Developed major banking modules - payment system, managing bills using the spring framework using Core Java 1.5,
Spring, Hibernate, XML and Oracle 9i.
 Involved in post-production maintenance like bug fixes, change requests and enhancements.
 Deputed to bank headquarters in Mumbai for demonstration of the WAC system in the new Java based online portal.
 Involved in the external/internal gateway configurations.
 Involved in code reviews
 Used JBoss as application server for development and Solaris as a platform in production.
 Developed JUnit for the entire system and lead a development for this and integrated the Junit with the build process.
 Involved in fixing critical bug fixes in a timely/ fast manner.
 Contributed in educating the new team members about the system
 Worked with application and RDBMS design principles
 Conducted performance optimization in JAVA/J2EEs
During this period of employment, he specialized working in the following software tools/environments:
Languages: Core Java (Java/J2EE)
Databases: Oracle
Web Related: Spring framework, Hibernate, XML, Junit, Javascript.
Application Servers: JBoss
Application Architecture: Site to site integration by applying secured handshake, High and Low level design by applying
appropriate design pattern solutions, Application performance tuning.
Design Patterns: Singleton, Factory, MVC
Source control: Visual SourceSafe
Tools and Utilities: Eclipse IDE, Putty, Oracle SQL Developer

2. Tech Mahindra Limited
Infocity, Hi-tech City Layout,
Madhapur, Hyderabad 500081,
India.
Tel: +91 40 3063 6363
Fax: +91 40 2311 7011
techmahindra.com
Connect@techmahindra.com
Registered Office:
Gateway Building, Apollo Bunder
Mumbai 400 001, India
CIN L64200MH1986PLCO41370
Job Title: Software Engineer
Job Details:
 Involved in requirement analysis with the team leads and architects.
 Involved in low level designing and database table changes, query modifications and drafting the low level design
document and reviewed with the team leads.
 Developed change requests and enhancements as requested using broad vision API and Oracle as backend.
 Developed stand-alone test automation UI based application using JSP and Servlets for validating the end to end
functionalities in one go.
 Involved in peer code review.
 Involved in setting code review standards, as a part of the team and recommended some of the open source plug-ins with
the rule customization to set the coding standards.
 Involved in production deployment and sanity testing.
During this period of employment, he specialized working in the following software tools/environments:
Languages: Core Java (Java/J2EE), Broadvision
Databases: Oracle
Web Related: JSP, Servlets
Application Architecture: Low level design by applying appropriate design pattern solutions for change requests and
enhancements.
Application Servers: JBoss
Platform: Solaris
Design Patterns: Singleton, Factory, MVC
Source control: Visual SourceSafe
Tools and Utilities: Eclipse IDE, Oracle SQL Developer, Putty, Editplus
Job Title: Software Engineer Trainee
Training :
Being the campus hire directly from a reputed college, the training on the following technologies and tools were given during this
period before getting deployed into client projects.
Languages: Core Java (Java/J2EE)
Domain : Manufacturing and Banking
Application design: Techniques to transform the requirement use-cases to class diagrams using UML modeling tools
Databases: Oracle
Web Related: JSP, Servlets, XML, XSD, Web services, HTML, Design patterns
Tools and Utilities: Eclipse IDE, Oracle SQL Developer, Putty, Editplus, Rational Rose.
Sincerely,
NIGEL FRANKLIN
HUMAN RESOURCES
(Authorized Signatory)