System Architect
2019 - PRESENTTrackStat- Built reporting solutions for data ingested from various electronic medical records systems.
- Applied data synchronization routines for various EMR-s.
- Created data processing and transformation pipelines.
- Implemented automatic notifications and the online appointment scheduling functionality.
Technologies: C#, ASP.NET, Node.js, Serverless, TypeScript, Angular, Microsoft SQL Server, T-SQL, AWS, AWS Lambda, API Gateways, AWS RDS, Twilio, Data EngineeringSystem Architect, Partner
2017 - PRESENTCityCom- Designed IoT infrastructure for building automation, safety, and security systems.
- Constructed a microservice architecture based on AWS Lambda and Event Bridge.
- Created efficient IoT streams and data processing pipelines based on various AWS services.
- Developed reporting solutions based on Apache Spark and AWS Athena.
Technologies: Amazon Web Services (AWS), Node.js, Serverless, Apache Hive, Spark, Hadoop, Angular, AWS, AWS IoT, Big Data, Amazon Athena, AWS Lambda, Microservices Architecture, MySQL, MQTT, Messaging, Event SourcingCTO, Partner
2004 - PRESENTOzorix- Provided software outsourcing service for customers from the US, UK and EU.
- Designed and developed enterprise applications for various industries on .NET and Node.js platforms.
- Created and implemented cloud and microservice architectures and serverless solutions based on AWS.
- Implemented and designed big data storage, analysis, and processing solutions.
Technologies: Amazon Web Services (AWS), System Architecture Design, Python, Spark, Serverless, MongoDB, SQL, AWS, ECMAScript (ES6), JavaScript, Node.js, C#, .NET, Pandas, Big Data, Domain-driven Design (DDD), AWS Lambda, Amazon Athena, Big Data Architecture, GraphQL, Data Science, Machine LearningSystem Architect, Data Engineer
2020 - 2021Lyka- Implemented design changes in ASP.NET back-end Web APIs and optimized Postgres database to handle the increased workload and improved the cost-effectiveness of AWS infrastructure.
- Built serverless microservice to handle wallet transactions based on AWS Lambda, API Gateway, and DynamoDB.
- Created a data processing pipeline based on AWS Kinesis, AWS Athena, and Apache Spark to ingest, transform, and provide reporting for up to 50 million daily transactions.
Technologies: C#, ASP.NET, Docker, Node.js, TypeScript, Serverless, AWS, AWS Lambda, Amazon Athena, AWS Kinesis, PostgreSQL, System Architecture, Domain-driven Design (DDD), Apache SparkSystem Architect
2020 - 2021BivLab- Designed and implemented IoT solutions for oil and gas fields' on-site devices.
- Created the AWS infrastructure to run physical simulations connected to incoming IoT streams.
- Built data visualization dashboards based on AWS QuickSight and Grafana.
- Designed system architecture for electronic vehicles real-time GPS tracking and performance monitoring system, based on AWS IoT, Kinesis, and Redshift infrastructure with web front end based on Mapbox.
- Consulted and shared knowledge in the field of data migration, data warehousing, and processing on the AWS platform.
Technologies: Amazon Redshift, AWS IoT, AWS Kinesis, AWS Cloud Development Kit (CDK), GPS, Data Warehouse Design, Data Warehousing, AWS Lambda, C++, Pandas, Big Data, ETL, Amazon Athena, GIS, Grafana, MapboxSystem Architect
2018 - 2019TrivaTec- Designed and developed IoT solutions for real-time personnel and equipment tracking on construction sites.
- Created and designed serverless back-end infrastructure for data ingestion and processing pipelines and business logic based on AWS Lambda, DynamoDB, and API Gateway.
- Integrated with the third-party CRM and resource management software products.
Technologies: Node.js, Serverless, AWS Lambda, Amazon DynamoDB, AWS IoTBack-end Developer
2016 - 2018Trek10- Developed serverless applications based on AWS Lambda and API Gateway.
- Worked on the development of reporting solutions based on AWS Athena and Apache Hive.
- Created serverless GraphQL API based on AWS Lambda and DynamoDB.
Technologies: GraphQL, Node.js, Serverless, Amazon API Gateway, Amazon DynamoDB, AWS Lambda, OpenCV, ImageMagick, Amazon AthenaFreelance Data Science Consultant
2014 - 2018Henge Precision Materials- Constructed sensor signal analysis deep learning models to detect various poisonous substances in the air.
- Created various data science solutions for statistical and machine learning models in material science using R and Python.
- Developed various data processing pipelines and visualization dashboards.
Technologies: R, Python, Jupyter, TensorFlow, Neural Networks, Data Science, Pandas
Algorithms Developer in Tbilisi, Georgia
Member since July 24, 2015
David is a highly motivated systems architect and software engineer with strong computer science skills, algorithms and data structures, object-oriented analysis, domain driven architecture, and data science. His more than 25 years of experience in the IT industry, most of which is team leading, system architecting, and decision making positions, covers design and development of enterprise applications, cloud/serverless solutions, and distributed systems based on .NET, Node.js, and AWS platform.
David is now available for hire
Experience
- C# 20 years
- .NET 20 years
- Algorithms 20 years
- Domain-driven Design (DDD) 15 years
- System Architecture Design 15 years
- Node.js 6 years
- Data Science 5 years
- AWS Cloud Architecture 5 years
Availability
Part-time
Preferred Environment
Docker, Xcode, Visual Studio Code, Git, Visual Studio, MacOS
The most amazing...
...thing I have created was a vehicle real-time GPS tracking and performance monitoring system based on AWS IoT/Kinesis/RedShift infrastructure.
Employment
Experience
- Siemens SpecWriterhttps://www.siemens-specwriter.com
Online applications to allow engineers to create building automation, define security and safety systems specifications, generate all accompanying documentation, and share it with other team members.
- Siemens Fire System Builderhttps://www.siemens-firebuilder.com
Online tool to assist engineers in the process of building a fire safety system equipment list and associated basic power calculations for estimating and quoting new projects.
- CityComhttps://www.citycom.ge
Set of online and IoT tools for condominium safety, security, and maintenance automation.
- Triva Smarter Worksite
Set of online tools based on IoT Smart Tags that help users to better manage construction projects and operations, produce on-site reporting, and access live data streams.
- Text Corpus of Georgian Dialects
An online text corpus of texts on various dialects of Georgian language with rich back-end functionality including parsing and tokenization, semi-automatic annotation, comparative analysis of dialects, and attempts to build models of Georgian language evolution.
- Closer Connecthttps://www.closerconnect.com
A content management system to create and share personalized sales and relationship portals and ad-hoc learning management systems with sophisticated distribution and reporting capabilities.
- Toptal MentorDavid is a mentor in the Toptal Global Mentor’s Program. This program is a partnership between Toptal and General Assembly to provide high quality mentorship for students from minority and low income backgrounds who are looking to begin their careers as professional software engineers. David shows commitment to diversity in tech by mentoring a General Assembly student every week for a year, covering everything from coding tips and tricks to advice on making it in the industry.
Skills
Languages
C#, JavaScript, ECMAScript (ES6), TypeScript, Python, SQL, Scala, R, C++, Swift, Java, Prolog, GraphQL, T-SQLFrameworks
.NET Core, ASP.NET Web API, ASP.NET, ASP.NET MVC, Entity Framework Core, Express.js, Serverless Framework, Angular, .NET, Apache Spark, Qt, AngularJS, Boost, Spark, HadoopLibraries/APIs
Node.js, TensorFlow, Pandas, PyTorch, OpenCV, ImageMagickTools
Mongoose, Sequelize, Visual Studio, PyCharm, WebStorm, Git, Xcode, Jupyter, Amazon Athena, MQTT, GIS, GrafanaParadigms
Serverless Architecture, Design Patterns, Object-oriented Programming (OOP), Functional Programming, Data Science, Microservices Architecture, Event Sourcing, ETLPlatforms
AWS Lambda, Docker, Software Design Patterns, Amazon Web Services (AWS), MacOS, Salesforce, Raspberry Pi, Arduino, Visual Studio Code, AWS IoT, AWS Kinesis, Mapbox, TwilioStorage
MySQL, PostgreSQL, MongoDB, SQL Server 2017, Amazon DynamoDB, PostGIS, Apache Hive, Microsoft SQL ServerOther
Algorithms, Data Structures, Domain-driven Design (DDD), System Architecture Design, Team Leadership, Leadership, AWS, AWS Cloud Architecture, OOP Designs, Neural Networks, Machine Learning, Statistics, Mathematics, Big Data, Natural Language Processing (NLP), Deep Neural Networks, Serverless, API Gateways, Internet of Things (IoT), Deep Learning, Data Warehousing, GPS, AWS Cloud Development Kit (CDK), Amazon API Gateway, Amazon Redshift, Data Warehouse Design, Messaging, Big Data Architecture, System Architecture, AWS RDS, Data Engineering
Education
- Ph.D. Degree in Expert Systems in Computer Aided Design & Manufacturing2001 - 2005Georgian Technical University - Tbilisi, Georgia
- Master's Degree in CAD/CAM Systems in Mechanical Engineering1996 - 1999Georgian Technical University - Tbilisi, Georgia
- Bachelor's Degree in Mechanical Engineering1991 - 1995Georgian Technical University - Tbilisi, Georgia
