Summary
Overview
Work History
Education
Skills
Accomplishments
Projects
Certification
Personal Skills
Work Availability
Quote
Timeline
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Sri Hari Mamillapalli

Sri Hari Mamillapalli

Bangalore

Summary

Data enthusiast with 7+ years of broad-based experience in building data-intensive applications, overcoming complex architectural, and scalability issues in diverse industries. Proficient in predictive modeling, data processing, and data mining algorithms, as well as scripting languages, including Python and R. Capable of creating, developing, testing, and deploying highly adaptive diverse services to translate business and functional qualifications into substantial deliverables with MLops and cloud technologies.

Overview

7
7
years of professional experience
1
1
Certification

Work History

Lead - Product Development

Harman
Bangalore
09.2021 - Current
  • Support the development of the Data Sciences team, both as a line manager and through mentoring and development of junior members of the team.
  • Manage the priorities and workload of other data scientists. Own and develop product/area specific data science roadmaps.
  • Measures effectiveness of improvements through deep analysis of data on performance metrics striving for cost effective high quality improvements.
  • Work with developers to identify key performance metrics and benchmarks related to user behavior, user segmentation, and user retention.
  • Track and make suggestions for ways to improve upon KPIs (Key Performance Indicators).
  • Owning the development of new data systems and processes and ensure these are utilized effectively within the team, identifying continual areas of improvement.
  • Perform large-scale data analysis and develop effective statistical models for segmentation, classification, optimization, time series, etc
  • Wrangling data from multiple sources such as Azure, Datadog, and SQL databases to create predictive modeling, statistical modeling, and interactive dashboards.
  • Delivering presentations to high level business stakeholders that tell cohesive, logical stories using data.
  • Strengthen our relationship with other disciplines and departments through effective collaboration.
  • Take part in recruiting, including reviewing, shaping, and evolving our process, training team members to perform effectively and proactively engaging candidates.
  • Lead development of ML models, model evaluation, model deployments and data tools such as dashboards.

Application Development Analyst

Accenture Ltd
Bangalore
01.2019 - 08.2021
  • Designed models, algorithms and visualizations to distill insights from huge volumes of data.
  • Built collection, analysis and reporting frameworks from scratch and devised techniques for maximizing system usefulness.
  • Applied data reduction and exploratory analysis techniques to manage large amounts of data.
  • Interpreted and analyzed data using exploratory mathematic and statistical techniques based on scientific methods.
  • Research and implement appropriate machine learning algorithms and tools
  • Analyzing the ML algorithms that could be used to solve a given problem and ranking them by their success probability
  • Exploring and visualizing data to gain an understanding of it, then identifying differences in data distribution that could affect performance when deploying the model in the real world.
  • Developed predictive models using machine learning, natural language and statistical analysis methods.

Senior System Engineer

Infosys Ltd
Bangalore
02.2016 - 12.2018
  • Interpret data, analyze results using statistical techniques and provide ongoing reports
  • Acquire data from primary or secondary data sources and maintain databases/data systems
  • Identify, analyze, and interpret trends or patterns in complex data sets
  • Undertake preprocessing of structured and unstructured data
  • Analyze large amounts of information to discover trends and patterns
  • Worked alongside team members and leaders to identify analytical requirements and collect information to meet customer and project demands.
  • Built compelling data stories and visualizations to influence decision makers.

Education

B.E -

VTU University
01.2015

EPGDM - Information Science Management

Alliance University
01.2022

Skills

  • Programming: Python, Pyspark, SQL
  • Industry Skills: Data Science, Agile, MLops, Predictive Analytics, Deep Learning, Statistical Modelling, Data Modelling, NLP
  • Machine Learning: SKLearn, Scipy, NLTK
  • Cloud: AWS(EC2, Lambda, RDS, S3), AZURE(Data Factory, Databricks, Data Lake Storage, Functions, Azure DevOps)
  • Data Analysis: Pandas, Numpy
  • Data Visualization: PowerBi, Tableau, Matplotlib, Seaborn
  • Deep Learning: Neural Networks(ANN, CNN, RNN), Auto Encoders, Tensorflow
  • Statistics: Descriptive Statistics, Inferential Statistics, Probability Theory, Over and Under Sampling, Dimensionality Reduction, Pearson Correlation, Cramer’s V Correlation, Hypothesis Testing, ANOVA, Z-Test, P-Test, T-Test
  • MLops: MLflow, DVC, Azure
  • Supervised Learning: Regression(linear, logistic, polynomial, SVM), Classification( decision trees, SVM, GBM, XGB, Random Forest)
  • Unsupervised Learning: Clustering(k-means, principal component analysis, K-NN, Isolation forest), Association rules

Accomplishments

  • Developed and deployed anomaly prediction version to locate anomalies for Mercedes-Benz Client Which decreased the time taken to remedy a problem from 1-2 hour to 15 minutes.
  • Successfully integrated recommendation engine with ServiceNow booking engine to reduce L1 ticket processing time from 10 minutes to 6 minutes and was named top collaborator of the team.
  • Created a risk forecasting system for Cisco client that increased customer retention by 6%.
  • Promoted from Senior Engineer to Lead Engineer, in less than 12-months.
  • Improved delivery of AIOps Product by bringing down cost, realizing overall increase in customer satisfaction and cost efficiency.

Projects

AIOps (Anomaly Detection)
Problem Description: The organization faces challenges in monitoring a large number of dashboards, resulting in a significant amount of time being consumed in identifying and addressing problems. This extended time to identify issues has led to prolonged service level agreement (SLA) timelines for issue resolution.
* Implemented real-time data aggregation for over 250 microservices from Datadog and SQL servers.
* Researched and built ML models to predict anomalies from time series data and determine influential features.
* Deployed trained models into production pipelines using Databricks, Azure DevOps (ADO), and Azure Data Factory on Azure.
MREBot (AI ChatBot)
Problem Description: The organization encountered difficulties in managing a high volume of key performance indicators (KPIs) on the dashboard. This posed challenges in effectively monitoring and understanding the metrics due to the overwhelming number of KPIs displayed. Additionally, there were knowledge gaps among team members, further exacerbated by limited availability of engineers around the clock.
* Integrated large chunks of data from Delta Lake and Confluence into an openAI large language model with Langchain.
* Built a complex pipeline utilizing multiple Azure services such as Databricks, Azure Synapse Analytics, Azure OpenAI, and Azure Search.
*Created a unified platform for handling queries related to organizational data.
MCC (Action Recommendation Engine)
Problem Description: Service engineers faced a significant time-consuming task of identifying the source resource when troubleshooting incidents, resulting in delays in incident resolution and impacting the service level agreement (SLA). There was a need to streamline the process and reduce the time spent on identifying the source resource, thus improving the overall SLA for incident resolution.
* Aggregated historical data from various sources into S3 buckets on AWS as Parquet files.
* Developed a recommendation engine using NLTK framework and random forest to suggest the next course of action for support engineers, thus reducing ticket resolution time.
DNAc (Risk Prediction Modeling)
Problem Description: The organization experienced a rise in customer churn rate and a decline in platform resource uptime, primarily driven by customer dissatisfaction. This posed a significant challenge in retaining customers and maintaining a high level of service reliability. There was a need to address these issues by identifying the root causes of customer dissatisfaction and implementing measures to improve customer retention and increase platform uptime.
* Collected data related to switches, APs, and routers from AWS S3 buckets using PySpark and converted it from unstructured to structured data.
* Developed a logistic regression model for predicting devices at risk, aiding in proactive risk management.
Ex-Dat Automation (ML Platform)
Problem Description: The organization faced challenges in utilizing machine learning (ML) algorithms and conducting data analysis on the platform due to its inherent complexity. Users found it difficult to navigate through the intricacies of ML algorithms and perform effective data analysis. There was a need to simplify the process, making it more accessible and user-friendly, enabling users to leverage ML algorithms and conduct data analysis with ease and efficiency.
* Implemented various supervised and unsupervised ML algorithms for the platform backend using Python and R languages.
* Ex-Dat is a machine learning software platform owned by Infosys, utilized for predictive analytics and data analysis.

Certification

  • AWS Solutions Architect Associate
  • Microsoft Certified: Azure Fundamentals
  • Google Analytics Certification

Personal Skills

Leadership: Successfully led cross-functional teams, making strategic decisions and driving project success.
Communication: Excellent verbal and written communication skills, adept at conveying complex ideas and instructions.
Problem-solving: Proven ability to analyze and resolve complex problems, implementing effective strategies.
Decision-making: Skilled in making informed and timely decisions, considering multiple factors and team impact.
Teamwork: Strong collaboration skills, fostering cooperation and achieving shared goals.
Adaptability: Quick to adapt to changing circumstances, embracing new technologies and navigating dynamic work environments.
Time Management: Exceptional ability to prioritize tasks, meet deadlines, and manage workload efficiently.
Strategic Thinking: Demonstrated strategic thinking abilities, aligning goals with organizational objectives.
Mentoring and Coaching: Experience in guiding and developing team members, providing constructive feedback for growth.

Work Availability

monday
tuesday
wednesday
thursday
friday
saturday
sunday
morning
afternoon
evening
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Quote

There is a powerful driving force inside every human being that, once unleashed, can make any vision, dream, or desire a reality.
Tony Robbins

Timeline

Lead - Product Development

Harman
09.2021 - Current

Application Development Analyst

Accenture Ltd
01.2019 - 08.2021

Senior System Engineer

Infosys Ltd
02.2016 - 12.2018

B.E -

VTU University

EPGDM - Information Science Management

Alliance University
Sri Hari Mamillapalli