Arjun Sharma

• Designed and implemented a file sharing system for downloading RFCs using Java.
• Implemented a multi-threaded server for concurrency that is capable of carrying out communication with multiple clients simultaneously.
• Peer to Server application protocol was implemented to make sure that peers and server follow precisely the specifications for their side of the protocol in order to accomplish particular tasks.
• Peer to Peer application protocol was implemented in a format similar… Show more

• Designed and implemented a file sharing system for downloading RFCs using Java.
• Implemented a multi-threaded server for concurrency that is capable of carrying out communication with multiple clients simultaneously.
• Peer to Server application protocol was implemented to make sure that peers and server follow precisely the specifications for their side of the protocol in order to accomplish particular tasks.
• Peer to Peer application protocol was implemented in a format similar to HTTP protocol to facilitate the P2P communication. Show less

• Implemented a “transport layer” service such as reliable data transfer in user space over the unreliable UDP protocol using Go-back-N ARQ scheme. To evaluate the performance, probabilistic loss service was implemented at the server in order to simulate packet loss in the network.

Highlights-
• Encapsulating application data into transport layer segments by including transport headers
• Buffering and managing data received from or delivered to the application.
• Managing the… Show more

• Implemented a “transport layer” service such as reliable data transfer in user space over the unreliable UDP protocol using Go-back-N ARQ scheme. To evaluate the performance, probabilistic loss service was implemented at the server in order to simulate packet loss in the network.

Highlights-
• Encapsulating application data into transport layer segments by including transport headers
• Buffering and managing data received from or delivered to the application.
• Managing the window size at the sender.
• Computing check-sums. Show less

* Implemented Chord protocol using Java with reference to a research paper "Chord: A scalable peer-to-peer lookup service for internet applications." (https://pdos.csail.mit.edu/papers/chord:sigcomm01/chord_sigcomm.pdf).
* Developed the program to run both interactively and in batch mode and facilitates methods like join, stabilize, fix_fingers and notify to keep data updated on different nodes in the chord ring.

* Designed distributed gameboard using ZooKeeper protocol having two types of process:
i) a watcher which runs continuously displaying most recent scores, and highest scores along with if the player is online or not and updating the lists in real time.
ii) a player which performs one of the three actions: join, leave, or post a score.
* Implemented interactive and batch mode for automation by generating random number with a normal distribution to vary the delay and score around the… Show more

* Designed distributed gameboard using ZooKeeper protocol having two types of process:
i) a watcher which runs continuously displaying most recent scores, and highest scores along with if the player is online or not and updating the lists in real time.
ii) a player which performs one of the three actions: join, leave, or post a score.
* Implemented interactive and batch mode for automation by generating random number with a normal distribution to vary the delay and score around the given mean value. Show less

* Created and managed a binary index file of integer key values as a B-tree supporting add, search and print operations.
* Investigated the performance by changing the order of the tree.

* Implemented three flavors of Disk based Merge sort: Basic, Multi-step and Replacement Selection Merge Sort to sort a large binary index file of integer key values.
* Improved sorting of large data files that can not fit in the main memory of system.
* Investigated the performance of different algorithms for creating and merging runs during Merge Sort.

* Implemented an in-memory indexing scheme to improve search efficiency of large data files containing organized records(using field delimiters).
* Designed in-memory availability lists to support the reallocation of space for records that are deleted using first-fit, best-fit and worst-fit algorithms to reduce internal and external fragmentation.

Implemented C code accomplishing the following tasks:
* Performed random-access file I/O in UNIX using C.
* Investigated time efficiency issues associated with in-memory versus disk-based searching strategies for small to large data sets.

• Implemented the Least Recently Used (LRU) replacement policy for buffer management in a multi-user transactional database (SimpleDB) for improved performance. This policy aims at making a rough prediction of future hits for the pages in buffer and reduces page faults to an extent.
• Implemented Map interface and Log Sequence Numbers (LSNs) for faster retrieval of pages.

• Designed the relational database based on objectives of this application and visualized the primary structure with E-R diagram.
• Implemented an online/offline portal for management of homework assignments and submissions for different courses taken by student using SQL and Java.

• Expertiza is a web application where students can submit and peer-review learning objects (articles, code, web sites, etc). Instructors use this portal for posting assignments and grading them. Students use it for discussion forums and managing their academic projects. The Expertiza project is supported by the National Science Foundation.
• Contributed by adding new functionalities and fixing existing bugs in the… Show more

• Expertiza is a web application where students can submit and peer-review learning objects (articles, code, web sites, etc). Instructors use this portal for posting assignments and grading them. Students use it for discussion forums and managing their academic projects. The Expertiza project is supported by the National Science Foundation.
• Contributed by adding new functionalities and fixing existing bugs in the system.
http://wiki.expertiza.ncsu.edu/index.php/CSC/ECE_517_Fall_2017/E1767_Improve_imports
• Implemented the prototype design pattern for functionality of importing the teams of students signing up for a given assignment of a course using RoR, SOLID principles for better architecture and Docker to setup the environment. Show less

• Performed full stack development on JetBrains using Ruby on Rails with RESTful web services for data access and view.
• The application has functionalities like creating users profile, allowing different levels of access to different users based on user type (super-admin, admin, users, etc.), searching cars, automatic reservation, email notification, minimum rental period, time elasticity, displaying previous bookings, deleting user’s profile, managing reservations and cars.
• Deployed… Show more

• Performed full stack development on JetBrains using Ruby on Rails with RESTful web services for data access and view.
• The application has functionalities like creating users profile, allowing different levels of access to different users based on user type (super-admin, admin, users, etc.), searching cars, automatic reservation, email notification, minimum rental period, time elasticity, displaying previous bookings, deleting user’s profile, managing reservations and cars.
• Deployed this app on Heroku cloud application platform with PostgreSQL and multi-process concurrency configurations. Show less

• Performed real-time sentiment analysis of large volume and variety of data using Apache Flume, MapReduce, Hive and predicted stock prices using Rule-Based Model.

• A multi-part security analysis report on an open source medical system – OpenMRS – that is used in many developing countries that lack the infrastructure or resource for a proprietary software to keep track of patient medical information
• Discovered the presence/absence of OWASP Top 10 security vulnerabilities in source code, tracked auditing and logging modules using a test suite, attempted fuzzing and client-side bypassing with ZAP tool, conducted static analysis using Fortify and… Show more

• A multi-part security analysis report on an open source medical system – OpenMRS – that is used in many developing countries that lack the infrastructure or resource for a proprietary software to keep track of patient medical information
• Discovered the presence/absence of OWASP Top 10 security vulnerabilities in source code, tracked auditing and logging modules using a test suite, attempted fuzzing and client-side bypassing with ZAP tool, conducted static analysis using Fortify and identified component vulnerabilities.
• Identified and wrote abuse/misuse cases, created attack/protection trees, screened for architectural design principle violations and usability issues. Tracked 4 major bugs – documented the impact, mitigation strategies and applied a fix. Show less

* Developed native application for Android and iOS using React Native, and Firebase for authentication and data storage.

* Implemented Citation KNN which is one of the most popular algorithms for solving multiple-instance learning (MIL) problems. It is a lazy learning algorithm which tries to classify a bag of instances by using labelled bags of instances.
* Its uses are diverse, like - Used for solving musky molecule prediction task, Used for image classification, Examining medical images to find tumors, Web mining, Spam detection and so on.

• Developed a Java based web application integrated with Hadoop and deployed on an ABB Cloud Server that provides Operational users informational views and access to relevant tools and reports to streamline activities.
• Designed an extensive rich presentation layer and GUI framework using HTML, CSS, Sencha ExtJS, and AJAX.
• Customized Apache POI Streaming Java API as per the functional requirements.
• Implemented an Asynchronous Task Framework with Queues and Thread Pools to execute… Show more

• Developed a Java based web application integrated with Hadoop and deployed on an ABB Cloud Server that provides Operational users informational views and access to relevant tools and reports to streamline activities.
• Designed an extensive rich presentation layer and GUI framework using HTML, CSS, Sencha ExtJS, and AJAX.
• Customized Apache POI Streaming Java API as per the functional requirements.
• Implemented an Asynchronous Task Framework with Queues and Thread Pools to execute resource intensive tasks.
• Spearheaded the use of SonarQube platform for analysing code quality and fixing bugs, logical errors and vulnerabilities. Show less

• Developed an application to calculate “cost of use” or “credit for provision” of a business unit’s fund.
• Intended to remove the Interest Rate Risk from the business Units and transfers to Treasury, who performs legal entity risk management activities.
• Designed a common business transformation rules framework in Ab-Initio (graphs) with reusable rules across multiple feeds, multiple regions of LRI regulatory reporting and programs (LRI, BASEL).
• Create UNIX wrapper scripts to run… Show more

• Developed an application to calculate “cost of use” or “credit for provision” of a business unit’s fund.
• Intended to remove the Interest Rate Risk from the business Units and transfers to Treasury, who performs legal entity risk management activities.
• Designed a common business transformation rules framework in Ab-Initio (graphs) with reusable rules across multiple feeds, multiple regions of LRI regulatory reporting and programs (LRI, BASEL).
• Create UNIX wrapper scripts to run the deployed Ab-Initio code (graphs and plans) and Schedule jobs using Control M.
• Enhanced the performance in both Ab-Initio/Unix and SQL code to leverage maximum benefit of Ab-Initio and to minimize the database interactions.
• Responsible for code migration with an in house developed tool – Vader.
• Build centralized repository for loading the various reports like Acceptance / Reject /Filter /Validation Reports.
• Automated a module using Java which eliminated manual work involved in migration and generation of EME objects. Show less

• Created a java based web application named Securities Core Processing Platform (SCPP) providing clients with an integrated solution for clearing, settlement, custody and asset servicing in over 100 markets.
• Implemented bank-wide utilities for corporate actions, income processing, tax reclaim processing, position management and trade settlements.
• Developed dynamic Web Pages using AJAX with JSP and Servlet using JQuery to display a detailed view of Component backlog on a single… Show more

• Created a java based web application named Securities Core Processing Platform (SCPP) providing clients with an integrated solution for clearing, settlement, custody and asset servicing in over 100 markets.
• Implemented bank-wide utilities for corporate actions, income processing, tax reclaim processing, position management and trade settlements.
• Developed dynamic Web Pages using AJAX with JSP and Servlet using JQuery to display a detailed view of Component backlog on a single screen, to reduce the effort of the monitoring, alerting, failure detection and reporting of the various components in the system.
• Launched this tool which is used as an alerting framework, giving a single shot view of different flows coming into strategic SCPP Environment. Show less

• Designed a home automation system that is controlled using an Android mobile application and Bluetooth wireless communication protocol, interfaced to the 8051 microcontroller.
• Programmed the microcontroller using embedded C to serially communicate with Bluetooth devices to generate respective output based on the input data to operate the loads through a relay driver integrated circuit.

• Developed a web application with functionalities implemented like secure login session, managing description, auction status and bids on items, searching items, email notification using SMTP protocol.
• Technologies: - JavaScript, JSP, Servlets, HTML, CSS, Bootstrap, MySQL