Vishnu Sankar S

• Developed mobile-based enterprise business applications and customer-facing applications in the telecommunications, banking, cybersecurity, app containerization, and mobile games industries, accumulating 14 years of experience.
• Specialized in mobile game testing for 4.6 years, ensuring high-quality and bug-free gaming experiences for users.
• Demonstrated expertise in architecture and design, leading and managing product teams to successful project completion.
• Provided technical direction for development, design, systems integration, and client engagement, ensuring efficient and effective project execution.
• Proficient in Swift, Objective C, Cocoa Touch (iOS), Cocoa (Mac OS X), and OpenGL, utilizing these technologies to deliver robust and user-friendly applications.
• Served as a technical mentor for a software development team, providing guidance and support to foster professional growth and development.
• Conducted technical interviews, evaluating candidates' skills and suitability for positions within the team.
  
  

Skills & Certifications

Machine Learning A-Z

https://udemy-certificate.s3.amazonaws.com/pdf/UC-XLDAV8MA.pdf

Deep Learning A-Z: HandsOn

https://udemy-certificate.s3.amazonaws.com/pdf/UC-XLDAV8MA.pdf

Google Generative AI Tool Completion Badges

https://www.cloudskillsboost.google/public_profiles/8759ad15-91f5-46c0-b4a8-206e82f4420c

Hard Skills :-  Ethereum Blockchain, Machine Learning, Dapp, JavaScript, ReatNative, JSONLD Parser, NodeJS, JavaScript, ReactJS

Framework Development (Apple Inc.)

(Products: Mobile phones, Computers & Chip Maker)(Client)

Features :-

• Audio, Chat, Email

Framework Development (Worlds largest technology Company)

(Products: Mobile phones, Computers & Chip Maker)(Client)

Features :-

• Audio, Chat, Email

Role & Responsibility :-

• Developed Framework & Integrated Email APIs.
• Developed sample Email App to adopt the Framework.
• Documented of all Email related APIs and provide implementation guidelines to other Business Units.

Security App (Mcafee Client)

Features:-

• Integrated Network/Device threat detection & Subscription base framework.
• In-App Auto Renewal Subscription Implementation.
• Implemented TeamCity for Continuous Ingeration.
• Understanding about different Network threats (SSLStripping, IP Spoofing, ARP Spoofing, HTTPS Spoofing) for using BetterCap tool to generate threats.

JioCoupon (Jio Client)

Features:-

• Integrated ReactJS App with iOS Native.
• Bridge Implemented between ReactJS and iOS native.
• Implemented new UI Design

PaymentBank App (Jio Client)

Features:-

• Implemented PaymentBank system on existing Application.
• Integrated UPI mode payment system using NPCI Library.
• Integrated Bharat & UPI QR reader in App.
• Implemented new UI Design
• Bug Fixing.

Role & Responsibility :-

• Analyzed about UPI architecture design and implementation details from National Payments Corporation of India (NPCI).
• Did Prototype and provide technical guidance to co-workers.
• Development coordination and code reviews in defect tracking & fixing and performance tuning. Analysis of work Requests and giving Estimates.
• Lead the technical team of 4 technical consultants.

Hydra: Hypermedia-Driven Web APIs (Jio Client)

Role & Responsibility :-

• Analyzed about Hydra
• Implemented JSON-LD Parser (Only Expanded Format)

Communicator App  (BroadSoft Client)

Features :-

• Video Collaboration
• Instant Messaging and Presence

Role & Responsibility :-

• Integrate existing feature in new project.
• Implemented new UI Design
• Bug Fixing.

Implemented Good Technology Containerization for Verizon Mobile Conference Connect App.  (Verizon Client)

Features :-

• Fetch & Update Corporate Calendar Events from Microsoft Exchange Server (Behind the corporate firewall) through Secure wave of communication (Good SDK).

Role & Responsibility :-

• Responsible to deliver Good Containerization in 3 Months
• Analysed Good Technology Containerisation  
• Implemented Small Lab with Microsoft Exchange Server,  Microsoft Server (Active Directory) & Good Technology Containers.

• Provided Good Containerization Technical and architecture implementation details to Android & iOS team members.
• Handled 12 team members (6 Developers, 4 Testers)

App : Mobile Conference Connection App

Role :-

• Analyse the UI design document and decide UI navigation flow of application.
• Analyse the API document and implement web services classes.
• Design the application based on MVC pattern.
• Implementing helper classes for Error codes handling (Web service APIs), AddressBooks,
• Implemented different UIStoryBoard based on the different navigation flow of UI design.

Responsibility :-

• Make & Upload Enterprise Ad-hoc Distribution build on every sprint end.
• Discuss UI’s implementations doubt and explain technical feasibility on iOS in Sprint Call
• Handled 2 Junior contract Employees.

App : MCC Redux
Period :- Jan 2015  -  May 2015

Role :-

• Implemented Redesign UI.
• Implemented CoreData to story APIs response for reducing network usage.
• Design the application based on MVC pattern.
• Implementing helper classes for Error codes handling (Web service APIs), AddressBooks,
• Implemented different UIStoryBoard based on new UI design.

Responsibility :-

• Make & Upload Enterprise Ad-hoc Distribution build on every sprint end.
• Discuss UI’s implementations doubt and explain technical feasibility on iOS.
• Schedule task for Juniors and discussed / guided to implement the new design.
• Handled 2 Junior contract Employees.

App : Verizon's Hardware Deployment Status

Period :- Jun 2015  -  Aug 2015

Role :-

• Gather requirements.
• Discussed APIs response format with web developers.
• Design the application based on MVC pattern.
• Learn & implement the App in Swift language.
• Implemented UIStoryBoard based on new UI design.

Responsibility :-

• Make Enterprise Ad-hoc Distribution build.

Team Size :-

• 1 - Myself

Experienced / Learned :-

• Experienced Swift data types & syntax.
• Generated RSA PublicKey from Modulus & Exponent which we get it from server.
• Learned Basic Encoding Rules (BER) with using third party encryption.

App : NortonZone
Period :- Nov 2013  -  Apr 2014

Role :-

• Email the consolidated task (4 Juniors’ ) daily to Client.
• Discuss / Gather requirements (Bugs, New Feature Implementation ) from client in daily status call.

Responsibility :-

• Assign task to 4 Juniors based on daily status call.
• Guide / discuss any clarification on Juniors task.
• End of the day gather all Juniors task.
• Give a proper TECHNICAL EXPLANATION for each and every fix / changes of junior task to client on daily status call.

Team Size :-

• 6 - Juniors

App : Face Recognition App. (iOS)(Proof Of Concept) (Mac OS)
Experienced / Learned :-

• Learned third party face recognition library and their concept.

App : Car Loan Repayment App for US Bank. (iOS)

Awards & Achievements

• Mark Twain Ethical Science Award from PETA for Frog Dissection iPad app.
• IEAR – Best Science App Award -2010 for Frog Dissection.
• Featured in The Sunday Times- List of Top 500 Apps.
• Featured by Apple “ New and Noteworthy” & “What’s Hot”.
• Topping the charts in Appstore with apps like DressEggy, NumberSense etc.

•  Learning Objective C, COCOA TOUCH and iphone SDK 3.0.
• Game developing in OpenGL ES & Using Texture 2D.
• Developing for Iphone OS 2.0
• Developed Game Concept & Design
• Graphics designed in GIMP application at MAC OS.

•    Testing experience in Nokia, Sony Ericsson, Motorola, Samsung, LG, HTC and Blackberry models.
•    Experience in Action & Adventure, Platform, strategy & Stimulation, Boards & cards, Puzzle, and Racing type games.
•    Technical knowledge of mobile games and mobile devices.
•    Preparation of Test case, Executing the Test case, Analyzing results and bug report preparation.
•    Extensive experience in finding and analyzing the bugs.
•    Experience in Samsung’s java serial codes.
•    Hands on experience in Full Life cycle mobile game development
•    Working closely with the other members of the team.
•    Self Starter, Self Motivator & Quick Learner.

Business Activities : -
•.   Online Marketing.
•.   Searching Engine Optimisation.

Administration Activities : -
 •.   Suggestion for designing work.

• Preparing Test cases.
• Preparing Test schedule’s.
• Review Junior tester’s bug reports.
• Finalize the game.
• Suggestions for game design & etc…………
• Have successfully tested in-house games like Staggy 3 (UK Film based game),Danger Man,
• Submarine, Shankar Dada(Telugu Film based game), Duck Training, Little Kitty.