Nowadays I work as Lead developer and consultant on enterprise projects built with Ruby on Rails and React.js.
My primary specialization is SaaS applications and most of the items in my portfolio are SaaS projects.
We can use our skills and expertise to build for you a web application of any size, secured with authentication and authorization systems, database support, and background processes for performance optimization. We always cover our code with automated tests so there will be no vendor lock up - if you ever want to switch to another software developer or team, they will able to apply modifications with confidence.
What you'll get for your money:
- Security. I won't disappear from you in the middle of a job.
- Reliability. Once we agree on a task, you will get it exactly the way we've discussed it.
- Consistency. You'll get the same level of high-quality work from start to finish.
- Initiative. I'll contribute ideas, help to define your requirements, and ask questions along the way.
Feel free to reach out to me anytime. I am looking forward to building your awesome web project together!
Nowadays I work as Lead developer and consultant on enterprise projects built with Ruby on Rails and React.js.
I was working as a Lead developer on various projects built with Ruby on Rails. At Flatstack I was responsible for backend development (high-load, scalability), client-side development with React.js, SQL queries analysis and optimization (for PostgreSQL), sprints planning, mentoring junior and middle employees. I also got familiar with RADIUS authentication and captive portal development.
I transitioned fast from member to lead developer of a team responsible for one of the largest company projects: interneturok.ru. Solution stack was as follows: Ruby on Rails, Angular, MySQL. My responsibilities included client and server-side development, code review and deployment.
Developed front end and back end of JavaPractice online service: java programming problems archive with automatic solution verification system. Technologies used: AngularJS, CoffeeScript, Spring Framework, MySQL, and JUnit with Jasmine for testing. During this period I got experience with building client-side applications in Angular; VPS administration and setup experience (Nginx, Tomcat, Java application deployment); experience with building backend APIs using Spring framework
Bachelor of Engineering
Rhino is a real estate technology company replacing security deposits with a smarter alternative that’s better
for both renters and landlords.
Since 2017 I am working as a Senior software engineer developing Ruby on Rails backend and React.js/TypeScript client side. Major achievments: built MVP almost from scratch; added integration with Yardi Voyager, developed recurring subscriptions flow with multiple Stripe accounts; built complex automatic reporting system for insurance partners.
Nucleus (former Mastermind Manager) is set of essential tools for communities and mastermind groups management, brainstorming,
goal setting and accountability.
I am a Lead engineer on this project. Together with my team we've build application from sratch using Ruby on Rails and React/Redux. We also implemented WebRTC video integration with major platforms like Vidyo.io, Twilio, Jitsi Meet. Developed integration with Stripe and Mailchimp/Mandrill, and later replaced Mailchimp email templates builder with own custom solution.
Form2chat is a serverless form backend that allows you not only to setup working web forms in just a couple minutes but also receive your submissions directly to the messenger of your choice: Telegram, Viber, Facebook Messenger, Slack or integrate your forms with other popular apps via Zapier.
I am a Lead engineer on this project and together with my team built integrations with major chat platforms and Zapier, spam protection filters, auto-responses with custom email templates, and also subscription payment system through Paddle.com gateway.
Flight School Manager is a powerful all-in-one tool to manage flight school. I worked as Elixir and PhoenixFramework developer on this project
and was responsible for development of web dashboard and API for iOS application.
Kindra Connect brings together people who share the values of authenticity, kindness, community, creativity, play, and personal growth. Together with my team, I am working as a Senior Elixir developer on this project and I am responsible for building and maintenance of Elixir/Phoenix API server for Kindra mobile application. I also support and expand admin dashboard built with React.js.
Blackink project goal was to simplify paywall ingration for news and magazine publishers and provide an all-in-one platform both for readers and publishers. As a developers team lead, I managed work on 3 separate projects for this client:
Jurata is the best lawyers database Switzerland. I, as a Ruby on Rails developer, was responsible for project maintenance, features and ingerations development. While working on Jurata I significantly improved customer data flow between Segment.com, Intercom.com and Jurata database.
RESTful JSON API for sayrhino.com partners built with Elixir and PhoenixFramework. I developed this project from scratch.
A canadian job board. I have been a lead developer on this project for a few months. I was responsible for architecturing and implementing RESTful API endpoints using JSON API specification, code review, maintenance, tasks estimation and sprint planning.
ACL™ GRC— a flexible and easy way to manage the process of planning and organizing projects, assessing risk, analyzing data, communicating issues, and visually sharing your findings. I've been one of senior full stack developers in distributed R&D team for 7 months. Was responsible for task planning, estimation and backend/frontend development. While I was working on the project together with the team we successfully delivered 3 major epic stories and also won an internal hackathon by developing bulk upload feature based on react-data-grid.
I have been working on this project for a few months with a team of fellow developers. My responsibilities included server side development and maintenance, code review, deployment, tasks estimation and sprint planning.
This is a custom captive portal implementation for an enterprise wifi network run by securedgenetworks.com. I've been working on as a Ruby on Rails developer on this project for and implemented radius client tool, admin dashboard and various background jobs via ActiveJob and Sidekiq, mailers, JSON API, etc.
This is online school education project. I worked on it for more than a year and transitioned from a regular to lead developer. Achievments: designed and developed a new internal chat system, online exam feature, pupil and teacher journals. Improved pages response time. Significantly improved deployment process and decreased deployment time from 11 minutes to less than one.
Ruby Library for interacting with freeradius server. While working at Flatstack I was developing a captive portal for securedgenetworks.com and it required a library to establish interaction between Ruby on Rails server and RADIUS server. I took an old and outdated library and developed it further to support current stable version of freeradius server. This project helped me to get experience with RADIUS authentication and captive portal development.
This project is Java programming problems archive with automatic solution verification system. Client's goal was to develop such service as an addition to his other project focused on java programming education. My contribution to this project was a whole client side application built with AngularJS, written in CoffeeScript and completely covered by Jasmine specs. I also designed and developed some backend API endpoints and services. As a result of my work problem-solving part of this service was fully completed.
I'll turn your business idea into a web application. Either you may delegate me the responsibility for the whole development process, or I can join your developers' team and help with project delivery.
Daily regular or upon request code review to help to improve code quality, get a second opinion on complicated problems, share knowledge of best practices and design patterns.
I will analyze an application code and deliver a detailed report of security vulnerabilities found in your application and instructions on how to fix them.
I will analyze an application code, run benchmarks and deliver a list of possible performance optimizations and instructions on how to implement them.
Servers setup or migration from any cloud to any cloud: Heroku, Digital Ocean, AWS, Google Cloud, etc.
Slava is far and away one of the strongest engineers I've ever had the chance to work with in my 15+ years of building software products and teams. He is a thoughtful, skilled software engineer and contributor. He asks all the right questions to thoughtfully build systems not just to spec, but for the future of the business, ensuring that code quality remains high and that the projects can continued to be iterated on rapidly well into the future. He's been working for us for more than three years now, and I look forward to continuing to work with him for as long as he'll have us!
Slava has been one of the most excellent individuals with which I've had the opportunity to work. Not only is he a competent developer, what makes Slava so great to work with is all the other intangibles. His willingness to jump on any project. His thoughtfulness about what would make the product better and business successful. He's both a capable leader and developer. Whatever project you bring him in on, he will make you feel like he's a partner. He has a great attitude and I hope we will continue to work together for years to come. If you have the opportunity to work with him, you should jump on it.
Slava is a very experienced, knowledgeable and responsible professional to work with. His broad expertise allows him to ramp up with new projects very quickly. What I especially liked about working with him is that he always strives to do things the right way - code quality, stability and test coverage are something that he keeps a close eye at, thus our clients with technical background had the most positive feedback regarding his work. All in all, Slava proved to be a great team member as well as a team lead - he was leading the development in quite a few projects that we had within the company. I’d highly recommend Slava as a very skilful developer.
Slava was my go-to coder for a Rails app in production during a couple of months. I was very happy working with Slava. He always understood my requirements fully and even thought ahead suggesting solutions to unforeseen problems. He was not afraid to tackle a broader field of issues and tech : from FE to DevOps. He is a man of effective words : he communicates when it's relevant - not more, nor less.
Slava is one of the best programmers I have ever met if not the best. I highly recommend him.