RAJESH ACHARYA

IT Expert Mastering Software Design, System Migration, & Database Optimization

LinkedIn GitHub sorkanra@gmail +1-248-***-****

PROFILE

As a seasoned Information Technology professional with over two decades of experience, I bring a wealth of expertise in software design and development, particularly in Python. My career has been marked by a strong commitment to technical excellence and innovation, particularly in the realms of system administration and database management. I excel in navigating complex IT environments, consistently delivering solutions that enhance efficiency and drive business success.

My professional journey has been defined by my ability to migrate and modernize legacy systems, ensuring they align with contemporary technological demands. This expertise is complemented by my proficiency in web server administration, particularly with Apache, and a keen eye for quality assurance and debugging. Notably, my experience extends beyond technical skills to include effective project management, especially for small business clients, where I have demonstrated strong analytical and organizational abilities. My approach is always collaborative, emphasizing clear communication and rapid adaptation to new technologies, ensuring that I not only meet but exceed the evolving needs of the IT landscape.

TECHNICAL TOOLBOX

Big Data: Hadoop Hive PIG Oozie Spring Batch

Databases: Oracle MSSQL MySQL Sybase HIVE

Applications: Tomcat Weblogic 7.0 Microsoft SNA Server MS Visio

Web Servers: Apache MS IIS iPlanet Netscape Enterprise Server

Protocols: TCP/IP (FTP HTTP SSH DHCP SNMP SMTP LDAP)

Monitoring: HAWK

Scheduling: AutoSys Cron Oozie

UNIX Tools: grep awk sed tar mailx find sam cut diff

Scripting: Python (V2.7 and 3.x) Bourne Korn Perl Expect C Shell

Programming: C/C++ Visual Basic JavaScript / Java Pascal Expect HTML TCL/TK SQL YACC LEX

Network: NIS NFS DNS SAMBA

Messaging: IBM MQ Series

Version Control: CVS GIT

OS: RedHat Linux CentOS AIX BSD Windows NT/XP/Vista

CERTIFICATIONS

Big Data & Hadoop Certification

Python Programming Certification

BrainBench Certifications: UNIX Korn Shell Scripting JavaScript HTML JAVA2 Fundamentals RDBMS Concepts Web Design Concepts Oracle PL/SQL Fundamentals Bash

Solaris 8 System Administrator Certification

BEA WebLogic 7.0 Administration Training

EDUCATION

Bachelor of Science – Computer Science

East Stroudsburg University - East Stroudsburg, PA

PROFESSIONAL EXPERIENCE

Python Developer Technical Specialist 10/2021 - Present

HCL America Verizon Business

Engineered automated security incident response actions using XSOAR and custom EDR tools, leading to a streamlined threat management process and enhanced system security protocols.

Directed in-depth analysis and customization of APIs from Palo Alto Networks for EDR solutions, improving incident response capabilities and user interface design.

Authored critical documentation and runbooks for EDR setup and operations, significantly enhancing knowledge transfer and operational continuity within the QA and MDR teams.

oCreate re-usable modules using Python and Palo Alto libraries.

oRunbooks were essentially instructions on which python scripts to be run for collecting security related events.

Led a strategic migration project from OCI to AWS Lambda, optimizing cloud resource management and achieving significant cost savings in GCP expenditure.

oConverted legacy Perl scripts to Python modules with reusability in mind.

oConverted legacy PHP scripts as API end-points (python modules) in Flask.

oMentored junior programmers and performed validations on Python code conversion.

oWrote the back-end python scripts to gather metrics data (CPU usage, memory usage, disk usage) for VMs from GCP for various projects and store them into database for purpose of providing recommendation on reducing cost.

oWorked on enhancements of third-party python libraries for specific use at client location.

Python Developer 05/2019 - 07/2021

FliptRx

Spearheaded development initiatives for Flipt's innovative pharmacy benefit management platform, leveraging Python 3.9 and advanced libraries to craft an easy-to-use solution that enhances price transparency and fosters consumer choice in healthcare.

Played a pivotal role in continuous product evolution, adhering to agile methodologies and sprint cycles.

Mastered a diverse tech stack including Python 3.9 with OOP, Couchbase, Amazon Redshift, and AWS services (EC2, S3), to deliver a scalable and cost-effective platform in the competitive healthcare sector.

Drove quality and reliability through rigorous development of unit and integration tests using PyTest, ensuring robustness and performance of the pharmacy benefit management system.

Orchestrated seamless project operations and workflow management by utilizing Apache Airflow for job scheduling.

Python Developer 08/2018 – 02/2019

Spectrum Consulting Sema4Genomics, Inc.

Revitalized the Non-Invasive Prenatal Testing (NIPT) dashboard, enhancing user interface experience and resolving extant issues

Facilitated a seamless migration of the NIPT dashboard from Python 2.7 to Python 3.x, modernizing the application stack and ensuring forward compatibility.

Leveraged Docker for efficient compartmentalization of batch processing and web processes, streamlining the NIPT system for better performance and maintainability.

Applied best practices in version control with Git and maintained project oversight with JIRA, improving code management and tracking development milestones.

Python Developer 05/2018 – 08/2018

Tavant, Inc. Compass, Inc.

Engineered specialized Feed applications in Python to interface with the Real Estate Transaction System (RETS), enhancing the efficiency and accuracy of Multiple Listing Service (MLS) data retrieval and management.

Implemented advanced data ingestion techniques to parse and store geospatial and property class-specific MLS data into MongoDB, significantly improving the data handling process.

Developed a robust data migration framework within the application to transform RAW collections into curated datasets, ready for publication and analysis.

Integrated AWS services and S3 for secure, scalable storage solutions, ensuring high availability and integrity of real estate data.

Utilized Git for meticulous version control and Gerrit for streamlined build processes and code reviews, maintaining high standards of code quality and collaboration.

Application Architect V 04/2017 – 01/2018

DataInc Bank of America

Contributed to the development and enhancement of Ozone, a key component within the bank's proprietary Quartz platform, to refine trade data management and control, thereby supporting critical risk, collateral, and capital computation processes.

Collaborated in the design and execution of a governance framework for Ozone, establishing a centralized workflow for the management of filters/rules critical to trade data integrity across multiple financial domains.

Implemented and optimized various Python modules within Ozone, adapting and creating filtering rules to meet business analyst specifications and regulatory requirements.

Conducted detailed data quality (DQ) analysis and provided extracts to business analysts, facilitating comprehensive impact assessments and data-driven decision-making.

Engaged in the rigorous post-release validation process, ensuring the reliability and accuracy of new features and functionalities within the trading platform.

Python Developer Support Engineer 07/2016 – 02/2017

Cognizant, Inc. JPMChase & Co.

Played a crucial role in the support and development team for Typhoon, an in-house software change management system, focusing on backend Python code enhancements to resolve user issues and optimize system performance.

Managed the build and deployment processes for Typhoon using SVN and Jenkins, ensuring smooth transitions and rigorous testing for both minor and major production releases.

Spearheaded initiatives to improve data quality and system integrity by implementing advanced solutions within the MySQL database environment.

Operated within a Linux setting, leveraging MySQL to augment system functionalities and maintain high standards of operational excellence.

Python Developer 12/2009 – 06/2015

Tangoe, Inc.

Pioneered Python back-end processes for the efficient filtration, pricing, and loading of CDR data into Oracle databases, significantly optimizing data management workflows.

Orchestrated the redevelopment of Python filtering scripts to process complex telecom data, delivering customized solutions for client's CDR records.

Designed and deployed a Java-based tool for rapid extraction from DB2 database files, markedly surpassing the performance of legacy.

Crafted a PHP and Python-based web interface to monitor CDR data loads, improving user experience and operational transparency.

Perl Developer 05/2009 – 11/2009

Strategic Staffing Solutions Cigna Corp

Authored a sophisticated Perl daemon script to automate the Quality Assurance of health-related files, ensuring compliance with intricate business logic and regulatory standards.

Designed the script to meticulously monitor and audit incoming files, processing each with dedicated threads to maintain system efficiency and integrity.

Implemented inter-process communication techniques, such as semaphores and shared memory, to effectively track and report the progress of concurrent tasks.

Developed a comprehensive notification system to dispatch detailed audit failure reports to relevant business groups, enhancing response times and accountability.

Created an auxiliary monitoring tool to provide real-time insights into active processes, facilitating better resource management and operational oversight.

Unix System Engineer 07/2008 - 02/2009

Tekmark Global Solutions Telcordia Technologies

Led a critical infrastructure project to transition Area of Service (AOS) cluster servers between database environments, ensuring minimal downtime and maintaining data integrity.

Developed comprehensive Method of Procedure (MOP) documentation, outlining detailed steps for the seamless "SWING" migration of AOS nodes to a new database server (SPACE).

Programmer Analyst 02/2007 – 05/2008

InfoSys Goldman Sachs – 01/2008 – 05/2008

Streamlined operations in the Equity Middle-Office by advancing build scripts and tools, elevating both development practices and production support.

Orchestrated automated testing frameworks, significantly increasing deployment reliability and speeding up the release cycle.

Tailored application requirement analysis to create and implement job instruction languages (JILs) for Autosys, enhancing scheduling and execution of batch processes.

Configured and optimized in-house packaging applications on Tomcat and Apache servers, boosting application delivery and performance.

Innovated test automation by developing new tools with Perl and UNIX Shell scripting, driving efficiency and precision in testing protocols.

InfoSys DowJones and Company – 02/2007 – 12/2007

Played a pivotal role in a re-engineering project for an internal web-based Digital Assets Management System (DAMS), enhancing system functionality and user experience.

Reconstructed and optimized a suite of application-related spooler scripts using Shell and Perl, significantly improving the efficiency of digital asset operations.

Developed a universal Bash shell script for the streamlined installation and deployment of CPAN modules, crucial for maintaining the DAMS infrastructure.

Sr. Systems Engineer 07/2006 – 12/2006

HarveyNash Comcast Comminications

Collaborated with the Process & Project Team (PPT) to automate the software upgrade process, resulting in a significant reduction of manual intervention.

Achieved a 50% reduction in the time required for manual patch updates for Cisco SoftSwitches by automating the installation process.

Developed Perl scripts to efficiently manage the installation and removal of software patches on Cisco servers, enhancing system reliability and operational efficiency.

Programmer Analyst 07/2004 – 04/2006

Accenture Comcast Communications

Developed Perl and LDAP scripts to perform sophisticated quality audits and reports, facilitating a major cleanup of legacy subscriber data.

Provided critical production support for the Data Migration Team, enhancing efficiency in data transfer and integrity.

Led the certification process for new DOCSIS cable modems at Comcast, documenting procedures to streamline future certifications and setup of version control systems.

System Administrator Developer 06/1998 – 05/2003

AT&T

Delivered high-level technical support for AT&T's Call Detail Data Systems (CDDS-II), ensuring accurate billing data collection and providing Tier-III Production Support for the Call Detail Recording Platform (CDRP).

Oversaw the maintenance and development of simulation tools in C for call traffic analysis and executed comprehensive system integration tests for CDRP's new releases.

Led a significant infrastructure project to retire legacy NCR Communication servers, managed source/version control with Sablime, and administered a suite of HP9000 servers, reinforcing the reliability of AT&T's global network operations.

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