AltoPass is a deterministic password manager that lets it's customers to use strong passwords without having to store them in the cloud.Participating as Senior Backend Developer/Team Lead. Responsibilities include architecture planning, feature proposals, some devops tasks. Building efficient product team, improving working processes and communications.Technologies:- Golang- PostgreSQL- AWS (S3, SQS, SNS, RDS, Cognito, Lambda, WebSocket API Gateway)- Elasticsearch

A b2b service to simplify and automate the advertising campaigns launches. MVP stage for now. The main audience - marketers, marketing agencies, small and medium business owners.Responsibility for all technologies - architecture design, solutions for integrations, backend development, deployments.Technologies:Golang, PostgreSQL, Google Cloud Platform, Terraform

A startup which is intended to provide american citizens with an alternative to insurance companies in the field of ophthalmology. The american insurance system is quite complicated and there are a lot of condition to get the insurance payments. The product provides the opportunity to pay rebates for glasses purchases. It allows patients to purchase glasses on their own without insurance companies. On the other hand, manufacturers get the profit due to increased demand to their products.Stack: Scala (cats, http4s + tapir, doobie), PostgreSQL, Apache Jena.Participating in project from scratch to release.

Traffic Analytics is analytics instrument for competitive intelligence. Participating as a backend developer/big data engineer. Work in a small product team using scrum methodology. Involvement into the whole development process:* architecture designing;* selection of the technology stack;* development of the algorithms, implementation* dattabase design (ClickHouse, earlier - leveldb KV-storage)* propose new product features and improvements;* research the ways to improve project's performance, availability, scalability and latency.* participating in project's infrastructure development - Bash, Python, Luigi, AWS, GCP, KubernetesTechnologies: Hadoop, Spark, Scala, Golang, Clickhouse, C++Achievments:* Successfully released the well-competitive product.* A great work was performed to improve the software performance to make it possible to process source data for the reasonable period of time;* The whole project was migrated to Google Cloud (Kubernetes, GCS,GCE, dataproc). It provides excellent abilities for scale and infrastructure support with actually the same expense.

* Development and support of the software, providing the twenty-four-hour service for cellular operators' users using C++ and Java programming languages;* Writing unit tests and test tools using Perl, bash, C++ and Java and performing test cases;* Writing the document sketches for the technical writers department;Interacting with the technical support and customers' engineers.

Maintaining computer network and servers (Windows 2003 Server, FreeBSD, Linux)

Responsibilities Maintaining computer network, servers (Windows 2003 Server, FreeBSD)

* Writing unit-tests and test utilities, using C programming language for different operating systems;* Maintenance and development of automated testing system (Visual Basic for Applications, Perl, bash);* Bug reporting using the Rational ClearQuest bug tracking system;* Source code analysis using the Klockwork static code analysis tool.