Антон

[open contact info](look above in the "contact info" section)
Anton Sementsov [open contact info](look above in the "contact info" section)
Senior Software Engineer Kyiv, Ukraine
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Web developer with a 6-year background in the field, working on different types of
projects. Bring the best development practices into them.

Doing my job, I’m always focused on contributing valuable improvements to
problem-solving capabilities and eager to find the best functional solutions. I am
passionate about learning new stuff, solving challenging business and technical
problems, quality code, and architecture.

SKILLS PROFESSIONAL EXPERIENCE
Senior Software Engineer
●​ Software development
HTTP/REST API, WebSocket, Merge.Rocks Kyiv, Ukraine (March 2023 – December 2025)
Outsource/product company
AI integrations, Automation,
Clean architecture, Design
Capable: SaaS AI prompt generation platform, Prompt chains, automations
patterns,
HTML, CSS, Tailwind, ShadCn
●​ Architectural design and development of the MVP application
end-to-end.
●​ Languages & Frameworks ●​ Managed project tasks and timelines to ensure efficient delivery.
JavaScript, Typescript, React, ●​ Integrated AI solutions, prompt template, and prompt chains. Integrate
NextJS, NodeJS LangChaine AI analytics framework.
●​ Implemented CI/CD pipelines for streamlined deployment and
●​ Databases & Headless CMS integration processes on Vercel.
Supabase, Strapi, Sanity ●​ Developed automation with services like n8n and make using webhooks
and services APIs. Provide email, slack notification with AI integration.
●​ Deployment ●​ Executed analytics with GTM and HubSpot services.
Vercel, Netlify, Docker, GitHub ●​ Integrated secure payment system, subscriptions, and single payouts.
Actions ●​ Designed and managed databases with Supabase, RLS, and Edge
functions.
●​ Developed an entire feature with dashboard nodes using ReactFlow
●​ Collaboration & Docs
●​ Designed a module with a complex text editor using Slate. Integrate
Git, GitLab, GitHub, JIRA, Trello,
custom popups and business logic.
Notion, Confluence, Postman ●​ Developed user authentication and user roles management systems

Technologies: TypeScript, React, NextJS, OpenAI, AI Langchain, Storybook,
Tailwind, Radix-UI, Shadcn, Supabase, Zustand, Stripe, Posthog,
Education Automation n8n/make, Sentry, Google Tag Manager, Testing/library react,

KNTU (Kirovohrad National
Technical University) Agentless - SaaS, Real Estate AI-powered legal document creation
Software development -
Master's degree. ●​ Led Front-end application architecture design.
●​ Management team collaboration and project tasks.
●​ Developed PDF generation pipeline using API2PDF service with custom
Languages rendering options.
●​ Developed home inspection upload and AI-powered issue analysis
Ukrainian – Native features.
English – Advanced ●​ Developed a module for dynamically generating user forms using JSON
schemas with conditional rendering and validation.
●​ Set up PostHog analytics for user behavior tracking and product
insights.
 ●​ Integrated payment systems with Stripe for property unlocking and
subscription management.
●​ Set up Sentry error tracking for proactive issue resolution.
●​ Designed and optimized database structures with Supabase,
implementing RLS policies for data security.
●​ Implemented user authentication and authorization systems with
Supabase Auth.
●​ Integrated property address parsing and Google Maps Street View
functionality.

Technologies: TypeScript, React, Next.js 14, Supabase, Stripe, PostHog, Handlebars,
Zustand, Radix-UI, Shadcn, Tailwind CSS, React Hook Form, Zod, Storybook, Google
Maps API, API2PDF, DocuPilot API, OpenAI API.

Forwardlane - SaaS, Signal building platform, Visual node-based query builder

●​ Conducted code reviews to ensure quality standards. Provided
mentorship to junior developers.
●​ Management team collaboration and project tasks.
●​ Developed a visual node-based signal builder using ReactFlow with
drag-and-drop, custom nodes, edges, and real-time validation
●​ Built a reusable UI component library with Storybook for
documentation and testing.
●​ Designed and developed onboarding with guided tours using React
Joyride.
●​ Integrated REST APIs with RTK Query and Axios interceptors for
authentication and error handling.
●​ Developed custom hooks architecture for business logic separation and
code reusability.

Technologies: TypeScript, React, Redux Toolkit, React Query, ReactFlow, React Hook
Form, Zod, React Table, React Joyride, Tailwind CSS, Storybook, Husky, ESLint, Prettier,
MSW, Testing Library, React Toastify, Day.js, Lodash, REST API.

Front-end developer
Awesomic San Francisco, United States (May 2022 – Feb 2023)
Awesomic - Y-combinator startup, Ukraine Forbes 30u30, Design/develop
service platform​

●​ Set up development tooling with Husky, ESLint, and Prettier for code
quality and consistency.
●​ Integrated Snippyly for collaborative features and user interactions.
●​ Implemented REST API integrations with React Query for efficient data
fetching and caching.
●​ Built data tables and management interfaces using React Table.
●​ Developed complex forms with React Hook Form, Yup, and Zod
validation.
●​ Integrated Firebase for authentication, real-time data, and backend
services.
●​ Integrated OpenAI API for AI-powered messaging between user and
customer

Technologies: TypeScript, React, OpenAI API, Firebase, React Query, Material UI,
Tailwind CSS, React Hook Form, Yup, Zod, React Table, Snippyly, REST API, Husky,
ESLint, Prettier.