• Owning all processes in the Store team, including the development of new features, bug fixes, and maintenance.
• Leading communication with contributors and maintainers to ensure the smooth operation of the Store.
• Research growth oportunities and implement new features to increase the Store's revenue.

As a Senior Full Stack Engineer, I was responsible for designing, developing, and deploying software solutions for MMDSmart products that deliver real-time, low-latency capabilities for next-generation communications.

Responsibilities:
* Participation in designing and developing new features and projects;
* Performing demos to stakeholders along with the team;
* Investigating, diagnosing and resolving product issues.

Product Owner
• Reorganised and updated services architecture and orchestration, migrated to Kubernetes cluster with Continuous Delivery.
• Setup monitoring, logging, internal SLI / SLO metrics to automate problems detection and solve it faster.
• Investigated and fix a big amount of bugs, and worked directly with users to reproduce and catch it.
• Went through all legacy code, tested it, and a fixed amount of known/unknown bugs .
• Worked on internal integration with new product - Browser-based Studio for live streams.
• Contribute to our Public API, added new features, improving it’s core.
• Managed and enhanced internal dashboards, driving increased functionality.
• Developed Minimum Viable Product for Restream Events, successfully showcasing new ideas.
• Integrated new platforms to expand customer base and engagement.
• Created MVP of mobile application using Flutter & Dart, delivering a user-friendly experience.
• Pioneered innovative features, contributing to the continuous evolution of the product.

Product Engineer at Growth Team
• Successfully launched a promotional campaign for 'old' 'free' active users, resulting in an impressive 17x increase in conversion rates.
• Designed and implemented effective improvements to the home page and onboarding funnels, leading to higher adoption rates and improved channel addition rates.
• Introduced a new pricing system that saved over 7% of revenue while seamlessly transitioning old users from legacy pricing.
• Conducted thorough A/B testing to optimize the checkout flow, resulting in an 12% increase in subscription rate for monthly plans and a 15% increase for annual plans.
• Actively participated in internal hackathons to identify and address funnel issues, ensuring constant improvement in user experience.
• Developed a standardized approach for conducting tests internally, coordinating A/B tests across engineering and support teams.
• Managed and implemented experiments using external A/B testing tools through code injection and monkey patching techniques.

Product Engineer at Live Shopping
• Developed and launched an MVP for the new Live Shopping experience, utilizing NodeJS backend with OAuth connection and advanced website-specific HTML scraping within a tight 4-week timeline to expand into complementary markets.
• Contributed to the development of Streaming Studio (WebRTC) backend, delivering new features to production in just 2 weeks.
• Enhanced the technical foundation of our product through extensive research on modern technologies, actively collaborating with the roadmap team.
• Conducted multiple customer interviews with shop owners and streamers to gather insights and feedback on Live Stream Sales.
• Led the transformation of the Live Sales MVP into a robust production version as the core backend engineer and co-product owner.
• Played a key role in architecture development and ensured high code quality standards as the product scaled

• Developed the Haverkamp Mobile Application, enabling users to remotely monitor and control IoT devices. Received positive client feedback, enhancing customer satisfaction and engagement.
• Contributed to the creation of the GasBuild Boiler House Management System, delivering advanced functionalities such as real-time monitoring and remote control. Empowered clients to optimize boiler house operations and reduce energy consumption.
• Led the development and implementation of the Modern Clinic CRM, streamlining appointment scheduling, patient record management, and billing processes. Improved operational efficiency and enhanced patient experience.
• Discover more projects at https://raksha.bio

Here is the list of a couple of projects that I can highlight:
+ Modern Clinic CRM (Internal Clinic & Patient Management System)
+ Haverkamp Mobile Application (Controller for IoT devices)
+ GasBuild Boiler House Management System (Data Processing Server, Web Application Backend and Frontend)
+ Web Support Ticketing, Management, etc. via Telegram (Bot + TDLib)
+ Application for informational terminals for Kharkiv National University museum (C#, WPF)
+ Maysternya Pirogiv - React Native mobile application
+ Internal Security Alarm signalling service via TCP connection
+ Visual configuration compositor for Windows

SPHOTS was created as a virtual product placement platform, which let local brands have a presence in international movies in the targeted territories. (Kind of Google Display in movies :))
We built an MVP, validated the product demand, and secured sufficient contracts. The business was put on hold due to COVID-19.

• Developed and implemented an internal CRM system for optimizing the process of finding inventions for low-budget films, enabling salesmen to identify the most profitable films for investors.
• Led the creation and architecture of robust backend services, ensuring scalability and reliability for core business processes.
• Designed and built the frontend of the core application using React.JS, enhancing the user experience and streamlining workflows.

Designed, architecture and developed a bunch of native mobile, desktop applications and powerful web-applications

I worked as a freelancer, as an individual and as part of a small team on large projects, mostly clients were found through personal communications. During this work, I sometimes acted as a team manager.

• Designed and implemented the architecture of a Windows application
• Developed data schema for efficient storage in a local NoSQL database
• Created a visually stunning native application for sensor information panels using C# and WPF at V.N. Karazin Kharkiv National University's museum
• Implemented automated synchronization across all terminals to ensure consistent and reliable data storage

🖼️ Responsibilities:
• Core Systems: Develop, optimize, and maintain core engine technologies across all micro-services. Ensure redundancy and resilience of production infrastructure.
• Technical Leadership: Leading the team in, right-sized, architectural decision-making for future product success on in-progress technologies and platforms
• Define and be responsible for the product roadmap and prioritization of an evolving, high-growth product area impacting agent efficiency, automation, and deflection of the platform.
• Combine customer insights, market trends, and our vision of delivering powerful capabilities in a simple way.
• Communicate and collaborate across cross-functional teams - product marketing, sales, success, and advocacy to take features from idea to launch.
• Meet with amazing customers, analyze product data, and research competitors to develop and communicate a vision for how we will keep building a phenomenal product/business.

🚀 Achievements:
• Co-founded and led HoReCart.app, a startup streamlining supplier-restaurant interactions to save time and improve efficiency in the purchasing process.
• Architected and developed the entire backend platform.
• Conducted customer interviews with various restaurants, suppliers, and POS systems to gather valuable insights for product enhancements.
• Established and maintained communication channels with potential investors, showcasing the platform's potential for growth and profitability.
• Forged strategic partnerships with other industry players, fostering collaboration and driving mutual success.