Vlad is available for hire
Hire VladVlad Emelianov
Verified Expert in Engineering
Software Developer
Location
Chisinau, Moldova
Toptal Member Since
May 14, 2017
Vlad is an experienced developer, always hungry to top his latest achievement, never resting on his laurels. He's worked in Russia's biggest IT company and later excelled as a software engineer and web hybrid developer. Currently, Vlad is using all his skillset to deliver cutting-edge analysis tools to the worldwide leading cinema loyalty program provider.
Portfolio
Omnistream Pte Ltd
SQL, Python, Azure
CoinX24 AG
Python, Hasura, GraphQL, JavaScript, TypeScript, REST, Prometheus...
CUE Audio, LLC
Amazon Web Services (AWS), Flask, Python, Python 3, Amazon EC2 API, NGINX...
Experience
Availability
Part-time
Preferred Environment
Docker, Git, Visual Studio Code (VS Code), Ubuntu, Vuex, Api.ai
The most amazing...
...thing I've made is a type checking and code auto-complete library for AWS. It quickly became trendy and ended up in the top 1,000 Python packages.
Work Experience
Python Developer
2023 - PRESENT
Omnistream Pte Ltd
- Designed and built a MessageQueue-based 3D projects export to PSA/PLN/PDF formats.
- Improved the CI/CD process powered by Bitbucket pipelines.
- Improved the performance of import/export workers by using an asynchronous approach.
Technologies: SQL, Python, Azure
Back-end Engineer
2023 - 2023
CoinX24 AG
- Introduced security audit and build time optimizations for Docker images.
- Designed and developed a high-load low-latency payments processing API.
- Implemented payment tracking for Ethereum blockchain.
Technologies: Python, Hasura, GraphQL, JavaScript, TypeScript, REST, Prometheus, OpenTelemetry, Zipkin, Digital Payments, Web Development, Crypto, gRPC, Protobuf, Stripe, OpenAI GPT-3 API, Data Science
Python, Flask, and AWS Expert
2022 - 2023
CUE Audio, LLC
- Developed a solution for automated deployment on AWS infrastructure.
- Fixed multiple security vulnerabilities in AWS infrastructure.
- Optimized EC2 and Lambda performance to process up to 400 requests per second.
Technologies: Amazon Web Services (AWS), Flask, Python, Python 3, Amazon EC2 API, NGINX, AWS Auto Scaling, Minimum Viable Product (MVP), RESTful Web Services, Full-stack, Back-end, Web Development, NumPy, Amazon Simple Queue Service (SQS), Front-end Development
Back-end Engineer
2022 - 2023
Olive Advisors Inc.
- Refactored Async IO-based processing to Kafka processing, increasing processing performance.
- Introduced multiple best practices for Python code quality and analysis.
- Decreased AWS infrastructure cost by reducing the number of constantly running Async IO loops.
Technologies: Python, GraphQL, Microservices, Pytest, Jira, REST APIs, Redis, Kubernetes, PostgreSQL, Apache Kafka, Minimum Viable Product (MVP), Algorithmic Trading, Algorithmic Trading Analysis, RESTful Web Services, Project Management & Work Tracking Tools, Full-stack, Back-end, AWS CloudFormation, Digital Payments, Web Development, Celery, Scrapy, Crypto, Google Cloud Platform (GCP), Machine Learning, Amazon Simple Queue Service (SQS), Stripe, Front-end Development
Software Engineer
2019 - 2022
Altitude Networks
- Built the best Python tools for managing Amazon DynamoDB.
- Created a tool for CI/CD, code style checks, and testing.
- Managed to make 100% of Python code type annotated.
- Committed several open-source products to make them available to the community instead of proprietary.
Technologies: Python, Amazon Web Services (AWS), Amazon DynamoDB, Amazon EC2, Amazon API Gateway, Linux, Amazon S3 (AWS S3), AWS IAM, Amazon EKS, AWS Key Management Service (KMS), MySQL, Scrum, Node.js, Logstash, AWS Lambda, Test-driven Development (TDD), Ruby, NoSQL, HTML, Lambda Architecture, Serverless Architecture, MariaDB, Docker Compose, Redshift, TypeScript, Amazon Elastic MapReduce (EMR), GraphQL, Amazon Elastic Container Registry (ECR), MongoDB, Apache, Big Data, PostgreSQL, REST APIs, Bottle.py, Cassandra, CI/CD Pipelines, Databases, Blockchain, APIs, Azure, Cloud Architecture, API Design, Authentication, Amazon Cognito, Containerization, Architecture, Technical Leadership, Project Management, DevOps, Serverless, Lambda Functions, Software Architecture, Amazon EC2 API, Python 3, AWS Auto Scaling, Data Analytics, Infrastructure, Optimization, Cloud Platforms, Online Payments, Terraform, SQL, Minimum Viable Product (MVP), Project Management & Work Tracking Tools, Full-stack, Leadership, Back-end, AWS CloudFormation, Redux, Web Development, Celery, Google Cloud Platform (GCP), NumPy, Amazon Simple Queue Service (SQS), Stripe, Front-end Development, Elasticsearch, Data Science
Software Engineer
2019 - 2019
oTree
- Created a secure API for building interactive quiz applications.
- Designed and developed a Vue.js front end to interactively edit projects.
- Introduced a seamless continuous integration and deployment logic.
Technologies: Vue, JavaScript, Django, Python, Linux, Amazon EC2, Amazon S3 (AWS S3), AWS IAM, CSS, MySQL, HTML5 APIs, Redis, Node.js, Flask, NoSQL, Web Architecture, MariaDB, Progressive Web Applications (PWA), Pandas, Vuex, Jest, TypeScript, Api.ai, Django REST Framework, REST APIs, CI/CD Pipelines, Databases, APIs, API Design, Authentication, Containerization, Architecture, Lambda Functions, Software Architecture, HTML5, FastAPI, Amazon EC2 API, Python 3, Infrastructure, Cloud Platforms, SQL, Minimum Viable Product (MVP), Firebase, RESTful Web Services, Project Management & Work Tracking Tools, Full-stack, Leadership, Back-end, Celery, Front-end Development
Python and JavaScript Hacker with RoR Knowledge
2018 - 2019
ADS, Inc. (via Toptal)
- Created a high-performance self-balancing network based on AWS.
- Developed a high-load REST API with the Django REST framework.
- Created custom firmware for Raspberry Pi devices with smart disk space allocation.
- Implemented Django-Salesforce and Django-AWS bindings.
- Added support to a web remote desktop protocol (RDP).
- Implemented a Rundeck environment to manage the whole project's architecture.
- Supported legacy Ruby on Rails code, API, and background services.
- Committed some object-relational mapping improvements to the Django core.
Technologies: Amazon Web Services (AWS), Django, Ruby, JavaScript, Python, Linux, Amazon EC2, Amazon S3 (AWS S3), AWS IAM, CSS, MySQL, HTML5 APIs, Redis, Node.js, Flask, NoSQL, HTML, NGINX, Koa, Serverless Architecture, Web Architecture, Remote Desktop Protocol (RDP), Docker Compose, Redshift, Angular, Pandas, TypeScript, FeathersJS, Django REST Framework, Salesforce, REST APIs, CI/CD Pipelines, Databases, APIs, Cloud Architecture, API Design, NestJS, Containerization, Architecture, DevOps, Serverless, Lambda Functions, Software Architecture, HTML5, Amazon EC2 API, Python 3, AWS Auto Scaling, Infrastructure, Cloud Platforms, Online Payments, Terraform, SQL, RESTful Web Services, Project Management & Work Tracking Tools, Full-stack, Leadership, React Native, Back-end, Speech Recognition, Celery, Scrapy, Front-end Development
Software Engineer
2018 - 2018
Ernst & Young Global Innovation
- Designed a microservice pipeline based on Kubernetes.
- Created a secure storage architecture with a Python API.
- Improved Docker containers according to best practices and my personal experience.
- Supported CI/CD for over five projects using GitLab continuous integration with Helm.
- Achieved 100% of test coverage for a complex Python app.
Technologies: React, JavaScript, Kubernetes, Docker, Python, Amazon Web Services (AWS), Linux, Big Data Architecture, Flask, Test-driven Development (TDD), HTML, MariaDB, Generative Pre-trained Transformers (GPT), GPT, Natural Language Processing (NLP), Docker Compose, Progressive Web Applications (PWA), MongoDB, REST APIs, CI/CD Pipelines, Databases, APIs, WebSockets, Cloud Architecture, Authentication, Containerization, Architecture, Technical Leadership, DevOps, Lambda Functions, Software Architecture, Microservices, Python 3, Infrastructure, Optimization, Cloud Platforms, Minimum Viable Product (MVP), Project Management & Work Tracking Tools, Full-stack, Back-end, Machine Learning
Software Engineer
2016 - 2018
AlfaCapital
- Created a Node.js-based infrastructure for payment processing.
- Migrated an existing React-based app to TypeScript.
- Supported a complex React, Redux, and Rollup application.
- Introduced a new REST API using Sails.js with an emphasis on data security.
- Improved a JavaScript microservices pipeline with an improved queues logic using Apache Kafka.
Technologies: Kubernetes, Sails.js, Apache Kafka, Express.js, Node.js, React, Big Data Architecture, CSS, MySQL, Scrum, HTML5 APIs, Logstash, NGINX, Lambda Architecture, Serverless Architecture, Generative Pre-trained Transformers (GPT), GPT, Natural Language Processing (NLP), Django REST Framework, Databases, API Design, Authentication, HTML5, Python 3, SQL, Front-end Development
Software Engineer
2017 - 2017
Better
- Created a high-load REST API using Django and Asyncio.
- Worked as a team lead and built an architecture for securely running custom workflows.
- Created a fast and scalable AWS infrastructure with boto3.
- Raised the products' quality by using CI/CD and well-written tests.
- Prototyped a safe and seamless sandbox to run workflows.
- Created the architecture for a NextGen passwordless authentication framework.
Technologies: Amazon Web Services (AWS), NoSQL, Kubernetes, Docker, Django, MySQL, Scrum, HTML5 APIs, Redis, AWS Lambda, Test-driven Development (TDD), HTML, Serverless Architecture, Web Architecture, Amazon Alexa, Google Home, Bots, MariaDB, Docker Compose, Android, Django REST Framework, REST APIs, Cassandra, CI/CD Pipelines, Databases, APIs, Cloud Architecture, API Design, NestJS, .NET, HTML5, Python 3, Cloud Platforms, SQL, Web Scraping, Scraping, RESTful Web Services, Full-stack, Video Streaming, HAProxy, Front-end Development, Elasticsearch
Software Engineer
2016 - 2017
Movio
- Developed high-performance Go microservices for a reporting pipeline.
- Created a React-based UI for statistics and monitoring.
- Supported PHP code for the old reporting pipeline.
- Encouraged up-to-date standards and code quality best practices.
- Supported the processing of large amounts of data with ELK stack.
Technologies: Scala, Go, React, CSS, MySQL, Scrum, HTML5 APIs, Redis, Kafka Streams, Logstash, AWS Lambda, Test-driven Development (TDD), HTML, NGINX, Grafana, Lambda Architecture, Web Architecture, MariaDB, Kanban, ELK (Elastic Stack), Kibana, Loopback, Progressive Web Applications (PWA), Cassandra, Elasticsearch, Amazon Elastic MapReduce (EMR), FlowType.JS, Behavior-driven Development (BDD), GraphQL, Apache Hive, Amazon Elastic Container Registry (ECR), Apache Samza, Ember.js, Django REST Framework, MongoDB, Apache, Big Data, PostgreSQL, REST APIs, CI/CD Pipelines, Databases, APIs, Cloud Architecture, API Design, .NET, ASP.NET, Microservices, HTML5, Amazon EC2 API, Python 3, jQuery, Data Analytics, Infrastructure, Cloud Platforms, SQL, RESTful Web Services, Full-stack, Front-end Development, Data Science
Software Engineer
2014 - 2016
Open Publishing GmbH
- Set up an automated production and development environment.
- Supported a complex yet efficient web server written in C++.
- Wrote database migration scripts using Python and Bash.
- Built an environment for React applications that supported two-way data binding between C++ and JavaScript parts of the web server.
- Supported and improved the Debian repository, which simplified the packaging build of a C++ web server.
Technologies: JavaScript, Python, C++, CSS, MySQL, Scrum, HTML5 APIs, Flask, HTML, NGINX, Web Architecture, Ember.js, REST APIs, Databases, APIs, Authentication, .NET, ASP.NET, Web Scraping, HTML5, Python 3, SQL, Scraping, Data Scraping, RESTful Web Services, Full-stack, Front-end Development
Software Engineer
2012 - 2014
Mail.Ru
- Created a high-load statistics app that processes two terabytes of data daily.
- Supported statistical tools for the mail and instant messengers department.
- Contributed to the Tarantool NoSQL database engine and Python bindings.
- Created the UI for data analysis and real-time monitoring.
- Introduced a reliable integration and deployment process.
Technologies: C++, Java, Python, CSS, Scrum, Redis, Flask, HTML, NGINX, Bottle.py, REST APIs, Databases, APIs, Web Scraping, HTML5, Python 3, jQuery, SQL, Scraping, Full-stack, Front-end Development
Software Engineer
2011 - 2012
Rambler
- Optimized Django for a popular online gaming website.
- Created a unified login tool that allowed them to merge user accounts from different domains into one high-performance database.
- Supported several Django websites, handling the front ends and APIs.
- Created a robust Flash-to-JavaScript connection framework to transfer data from Flash games.
Technologies: C++, Django, Python, CSS, HTML, Mercurial, Databases, APIs, Authentication, HTML5, Python 3, jQuery, Full-stack, Front-end Development
Junior Software Engineer
2009 - 2011
QIWI
- Created an end-to-end testing framework for the ATM management UI with complex business logic.
- Supported an ATM interface written in HTML, CSS, and JavaScript.
- Wrote deployment scripts for continuous integration.
- Monitored and constantly improved the performance of MS SQL stored procedures.
- Developed an XLS report generator for the ATM management UI.
Technologies: Microsoft SQL Server, PHP, Python, CSS, HTML, Subversion (SVN), REST APIs, Databases, HTML5, Python 3, jQuery, Front-end Development
Experience
Kasper
https://github.com/movio/kasperAn Apache Samza successor written in Go and a nice key-value storage abstraction for real-time data processing. It can be easily tweaked to suit customer needs. The project is retired but still an excellent example of a high-quality code.
Ernst & Young Global Innovation Architecture
https://www.ey.comThis massive project involved the use of several technologies. I had the chance to work with a team of high-end professionals delivering an outstanding product using bleeding-edge technologies while maintaining a high-quality level.
Kanobu.ru
http://kanobu.ru/It is the most famous Russian portal for gaming, movies, and more. My responsibility was to develop a unified login system for all Rambler and Kanobu projects. It was challenging because Rambler is the second biggest search engine in Russia.
Mail.ru Search Statistics Tool
https://mail.ru/This project dealt with statistical tools for a leading search engine in Russia. It involved using Java, Python, and C to process over two terabytes of data daily, and having data security was a priority.
Unified Login for Rambler
https://id.rambler.ru/login-20/?#loginA high-performance service that allows Rambler company to store user accounts from all their projects in one NoSQL database. It is used for authentication, sharing user information between Rambler websites, and merging several user accounts into one.
Type Checking and Code Completion for AWS Boto3
https://boto3-stubs.readthedocs.io/en/latest/A fully automated mypy-boto3-builder that generates type annotations for each service waiting for boto3 updates. It delivers drop-in type annotations for users and ensures:
• All available boto3 services are covered
• Each boto3 service's public class and method get valid type annotations extracted from the documentation, and incorrect types are due to botocore documents
• Type annotations include up-to-date documentation
• A link to documentation is provided for every method
• Code is processed by black and isort for readability
• All available boto3 services are covered
• Each boto3 service's public class and method get valid type annotations extracted from the documentation, and incorrect types are due to botocore documents
• Type annotations include up-to-date documentation
• A link to documentation is provided for every method
• Code is processed by black and isort for readability
AWS CLI V2 for Python
https://github.com/youtype/awscliv2A Python wrapper for AWS CLI v2. Features include:
• No dependency, like with the original AWS CLI
• Possibility of installing and updating AWS CLI V2 binaries
• Providing access to all AWS services
• A Python interface—awscliv2.api.AWSAPI
• No dependency, like with the original AWS CLI
• Possibility of installing and updating AWS CLI V2 binaries
• Providing access to all AWS services
• A Python interface—awscliv2.api.AWSAPI
Visual ChatGPT With Extra Diffusers Support
https://github.com/vemel/visual-chatgptA fork of visual ChatGPT with additional fine-tuning and extra stable diffusion diffuser supports.
• New diffusers support
• GPU usage set up
• Packaging
• No strict Conda requirement
• Support for non-square images
• New diffusers support
• GPU usage set up
• Packaging
• No strict Conda requirement
• Support for non-square images
Skills
Languages
PHP, Python, HTML, CSS, Go, JavaScript, HTML5, Python 3, SQL, C#, GraphQL, Java, Scala, TypeScript, C++, Ruby
Frameworks
Django, Koa, Flask, Express.js, Ember.js, Angular, Sails.js, FeathersJS, Loopback, Django REST Framework, Redux, Jest, .NET, ASP.NET, React Native, Scrapy, gRPC, NestJS
Libraries/APIs
Vue, HTML5 APIs, Node.js, React, REST APIs, Amazon EC2 API, NumPy, Stripe, FlowType.JS, Vuex, Pandas, jQuery, Protobuf, Bottle.py
Tools
Kafka Streams, Logstash, Grafana, NGINX, Git, Celery, Amazon Simple Queue Service (SQS), ELK (Elastic Stack), Docker Compose, Amazon Elastic MapReduce (EMR), Apache Samza, Amazon Elastic Container Registry (ECR), Kibana, Apache, Mercurial, Subversion (SVN), AWS IAM, Amazon EKS, AWS Key Management Service (KMS), Terraform, Pytest, AWS CloudFormation, Amazon Cognito, Jira, Zipkin
Paradigms
Lambda Architecture, Test-driven Development (TDD), Serverless Architecture, Scrum, Microservices, REST, Data Science, Behavior-driven Development (BDD), Kanban, Web Architecture, DevOps
Platforms
Salesforce, Amazon EC2, Docker, Apache Kafka, AWS Lambda, Linux, Ubuntu, Amazon Web Services (AWS), Kubernetes, Api.ai, Amazon Alexa, Android, Firebase, Heroku, Google Cloud Platform (GCP), Blockchain, Azure, Visual Studio Code (VS Code)
Storage
Elasticsearch, Redis, MySQL, MariaDB, Amazon S3 (AWS S3), Amazon DynamoDB, Apache Hive, Cassandra, MongoDB, PostgreSQL, Databases, Microsoft SQL Server, NoSQL, Redshift, Hasura
Other
Big Data Architecture, Progressive Web Applications (PWA), CI/CD Pipelines, APIs, Containerization, Architecture, SaaS, Lambda Functions, Software Architecture, Infrastructure, Cloud Platforms, Online Payments, Minimum Viable Product (MVP), Algorithmic Trading, RESTful Web Services, Full-stack, Back-end, Front-end Development, Remote Desktop Protocol (RDP), Big Data, HAProxy, Google Home, Bots, Natural Language Processing (NLP), Cloud Architecture, API Design, Authentication, Technical Leadership, Serverless, Web Scraping, AWS Auto Scaling, Data Analytics, Optimization, Physics, Speech Recognition, Web Development, Scraping, Data Scraping, Project Management & Work Tracking Tools, Leadership, GPT, Generative Pre-trained Transformers (GPT), Video Streaming, Crypto, Amazon API Gateway, WebSockets, FastAPI, Artificial Intelligence (AI), Images, Algorithmic Trading Analysis, Digital Payments, Prometheus, OpenTelemetry, Machine Learning, OpenAI GPT-3 API
Industry Expertise
Project Management
Education
2018 - 2018
Completed a Short Course in Advanced Machine Learning for Data and Text Processing
MIT Professional Education - Cambridge, MA, USA
2017 - 2018
Master's Degree in Analytics
Auckland Institute of Technology - Auckland, New Zealand
2006 - 2014
Master's Degree in Information Security
Moscow Institute of Electronics and Technology - Moscow, Russia
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