Hari Kishan Tammana
O'Fallon,MO
Summary
Technical Architect and Data Engineer with 15 years of expertise in cloud transformations and Big Data pipeline development. Skilled in GCP and AWS, with a focus on creating scalable solutions and leading technical teams. Holds a PG Diploma in Data Science with an emphasis on Deep Learning. Currently enhancing data warehouse transformations through GenAI to optimize self-service interfaces.
Overview
18
18
years of professional experience
1
1
Certification
Work History
Software Engineer - Specialist
Equifax Inc.
St Louis, MO
10.2022 - Current
- Spearheaded GCP transformation of EWS data warehouse, establishing dynamic end-to-end cloud solutions.
- Engineered scalable Event Management Framework for unified data ingestion into BigQuery.
- Implemented Schema Registry and Dynamic Custom Extracts, enhancing pipeline configuration and data delivery.
- Developed near-real-time data replication pipelines from Oracle to GCP using Striim technology.
- Architected file-based ingestion framework leveraging GCP Composer for automated data loading.
- Created specialized data enrichment pipelines, standardizing diverse sources into WIDE tables for billing and reporting.
- Successfully delivered high-profile client projects including Amazon PHQ migration and Walmart Custom Extracts.
- Led GenAI initiatives, developing D.A.V.E. for self-service intelligence access to EWS Data Warehouse.
Lead Data Engineer
Meghaz Inc.
Remote
01.2022 - 10.2022
- Managed deliverables for offshore team of 10 data engineers during Equifax GCP transformation project.
- Provided technical guidance to enhance team performance and project outcomes.
- Contributed to design and implementation of data engineering solutions within Equifax GCP environment.
Technical Architect
Coforge DPA Pvt. Limited (Formerly NIIT Incessant Technologies)
Remote/Hyderabad, India
11.2014 - 12.2021
- Contributed to framework design and implementation during Equifax GCP transformation from July 2019 to January 2022.
- Developed and supported FALCON fraud detection solutions for Mastercard using Java, Web Services, Couchbase, and AWS Beanstalk from June 2017 to June 2019.
- Directed Akana API Management services, managing API lifecycles across banking, retail, and logistics sectors from December 2014 to June 2017.
- Created automated API onboarding tool and CLI, enhancing operational efficiency.
- Designed custom Akana policy components for security features such as SAML authentication and token generation.
- Led PEGA integration projects, including complex SSO security integration with LAF.
- Selected to support Akana's client in Mexico from engagement kick-off through production support.
- Earned Top Talent Recognition Award for two consecutive years.
Senior Software Engineer
Oracle India Pvt Ltd.
Hyderabad, India
07.2012 - 10.2014
- Enhanced internal operational tools (DMT, Zeus UI) using Oracle ADF, APEX, Java, and PL/SQL to manage Oracle application environments.
- Collaborated with technical operations and infrastructure teams to scope requirements and design solutions.
- Developed automated processes, including Archive-Restore, to improve efficiency of data management.
Senior Software Engineer
PASS GCA Solutions Private Ltd.
Hyderabad, India
03.2011 - 07.2012
- Directed design and development of sensor data processing application for logistics clients using Mule ESB, Drools, JMS, Smooks, and Java.
- Enhanced mobile logistics application server performance by implementing JSON communication and GZIP compression, reducing data transfer times.
Senior Subject Matter Expert
Amdocs Development Center India
Pune, India
08.2009 - 02.2011
- Designed and developed customizations, simulators, and front-end components for Order Management System for major telecom clients including AT&T, MetroPCS, Mobilicity, and Sprint.
- Utilized Java/J2EE, EJB, JMS, JAXB, SQL, PL/SQL, and WebLogic to enhance system functionality.
- Mentored junior developers to improve team capabilities and knowledge sharing.
- Gained onsite client-facing experience to strengthen relationships and project outcomes.
- Achieved early promotion to Senior Subject Matter Expert due to exemplary performance.
Software Engineer
Satyam Computer Services Ltd.
Hyderabad, India
09.2007 - 08.2009
- Supported upkeep of Logistics Management System while collaborating with Code Quality and Testing Team for Carlson Wagonlit Travels.
Education
PG Diploma - Data Science
IIIT-Bangalore
Bangalore, Karnataka, India05-2021
M.Sc. (Hons) - Mathematics
Birla Institute of Technology And Science (BITS-Pilani)
Rajasthan, India05-2007
B.E. (Hons) - Mechanical Engineering
Birla Institute of Technology And Science (BITS-Pilani)
Rajasthan, India05-2007
Skills
- Core competencies: Cloud solution development, data warehouse transformation, AI integration, technical team management
- Cloud platforms: GCP (BigQuery, Dataflow, Composer, GKE, DataStore, GCS, GCE), AWS (Lambda, EC2, S3, Beanstalk, CloudWatch)
- Data engineering and analytics: Apache Airflow, Apache Beam (Dataflow), BigQuery integration, Schema Registry, Striim, Real-time data processing, Tableau
- Programming languages: Java (Core, J2EE), Python, SQL (PL/SQL), Spring, Hibernate, Struts, Unix shell scripting
- Architecture and APIs: Microservices, Event-driven architecture, SOA governance, GenAI integration, Akana API Gateway, Mule ESB
- Databases: MongoDB, Couchbase, Oracle, MySQL
- DevOps tools: Docker, CI/CD pipelines, Git version control
Certification
- Google Certified Professional Architect
- PEGA Certified Senior System Architect (CSSA)
- PEGA Certified Decisioning Consultant (CPDC)
- AKANA API Gateway Certified
- Sun Certified Java Professional (SCJP 1.5)
Timeline
Software Engineer - Specialist
Equifax Inc.
10.2022 - Current
Lead Data Engineer
Meghaz Inc.
01.2022 - 10.2022
Technical Architect
Coforge DPA Pvt. Limited (Formerly NIIT Incessant Technologies)
11.2014 - 12.2021
Senior Software Engineer
Oracle India Pvt Ltd.
07.2012 - 10.2014
Senior Software Engineer
PASS GCA Solutions Private Ltd.
03.2011 - 07.2012
Senior Subject Matter Expert
Amdocs Development Center India
08.2009 - 02.2011
Software Engineer
Satyam Computer Services Ltd.
09.2007 - 08.2009
PG Diploma - Data Science
IIIT-Bangalore
M.Sc. (Hons) - Mathematics
Birla Institute of Technology And Science (BITS-Pilani)
B.E. (Hons) - Mechanical Engineering
Birla Institute of Technology And Science (BITS-Pilani)