Vitalik Kravets's Work | ContraWork by Vitalik KravetsVitalik Kravets
Full-Stack Developer | Web, Mobile, Bots & AI Products
Founders Law is a legal document marketplace and management platform that helps startups and businesses access templates, legal bundles, and professional services in one place. Our team built searchable document catalogs with country-based filtering, guided questionnaires for personalized agreements, progress saving, previews, purchases, invoices, and client accounts. We also developed an administrative workspace for managing users, jurisdictions, services, templates, lawyers, and client-to-lawyer assignments. The solution reduces the time and cost of preparing legal documents while providing secure access control and a scalable foundation for future services. Technology stack: React, Next.js, TypeScript, Tailwind CSS, Node.js, REST API, Docker, and Git. Helpmarket is a Swiss service marketplace that connects customers with trusted local specialists across multiple industries. Our team designed and developed advanced discovery tools with filtering by canton, city, postal code, search radius, hourly rate, language, and verified reviews. Specialists can publish service listings, manage education and portfolio details, select Regular or Business subscriptions, purchase promotional boosts, monitor an integrated CHF wallet, and share profiles through custom QR codes. The platform also includes client task placement, rating workflows, multilingual content, subscription monetization, and a Swiss-law-aligned knowledge base. Technology stack: .NET Core, C#, REST API, Next.js, TypeScript, Redux Toolkit, SCSS, Entity Framework Core, PostgreSQL, and Docker. Synethos is a conversational mobile app with an AI facilitator that helps users reflect on emotions, challenges, stress, and loss of focus in a supportive and structured way.
Our team built guided AI conversations that identify recurring personal patterns and transform them into clear insight cards containing context, reframing, and practical recommendations. An action list gathers the most important next steps into one focused daily workspace.
Users can save and favorite meaningful insights, revisit previous observations, and recognize recurring themes over time. The product turns scattered thoughts into useful habits while maintaining multilingual support and secure access to personal data Lexicana is a mobile vocabulary-learning application that makes foreign-language study structured, accessible, and motivating. Users select a target language and progress through curated word sets, beginning with the most frequently used vocabulary and unlocking advanced levels over time.
Our team developed interactive flashcards with translations and definitions, dedicated Learn and Test modes, saved-word revision, progress tracking, and personalized language settings. Authentication supports email, Google, and Apple, while premium access removes learning limits.
The level-based journey encourages active recall instead of passive memorization and gives learners a clear next step every day. The application has exceeded 1,000 installs and improved vocabulary-retention speed by a reported 35%.