Андрій

Andrii Tantsiura
Front-End Developer | React, Next, TypeScript
[open contact info](look above in the "contact info" section) [open contact info](look above in the "contact info" section) Kyiv @Andrew_Tang

Tech Skills
HTML CSS/SCSS/Tailwind CSS JavaScript TypeScript: React/Next Redux Redux Thunk
Redux Saga Redux Toolkit RTK Query Zustand MobX Webpack/Vite React-Hook-Form
Yup/Zod Jest Storybook Strapi Figma Git FSD

Professional Experience
Sinova Development, Front-end Developer Mar 2024 – May 2025
▣ Graph.one data analytics company.
Developed interactive graph visualization tools with real-time updates and efficient querying.
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Ensured seamless API integration for real-time updates.
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Improve advanced authentication and registration form with role allocation.
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Optimized performance to improve loading times.
⚒ Tech stack: React, Next, TypeScript, GraphQL, Tailwind, Jest.
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▣ Edee.ai marketing technology company:
Responsive UI visualization of analytical data for cost and efficiency tracking.
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Ensuring the processing of confidential campaign data with real-time budget tracking.
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Implemented automated responses to cost overruns and secure data management.
⚒ Tech stack: React, Redux, TypeScript, MUI, Jest.
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Five Systems Development, Front-End Developer Jun 2022 – Feb 2024
▣ Transportation and Logistics project:
Created a user-friendly, fast, and comprehensive website for tracking trucks, orders, and cargo
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Developed an adaptive dashboard for the administrative panel: displaying key metrics,
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graphs, tables with filters.
Implemented functions adding a car or cargo in the personal admin panel, finding clients or
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transport, tracking order status, simplifying document flow and issuing a waybill.
⚒ Tech stack: React, Redux, TypeScript, Tailwind.
▣ Product for a commercial mortgage company:
Added to the legacy approach a lot of type support, added responsive design and improved
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UX.
Enhanced the functionality of user forms by adding advanced validation, user authorization
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and registration features for JWT with cookie storage for increased security.
Created dashboard that tracks offers and allows to compare terms such as effective rate,
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closing costs, recourse, and cash flow.
Wrote unit tests to verify the operation of individual functions, reducers, and custom hooks,
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which ensured code stability and quick bug detection.
⚒ Tech stack: React, Redux (toolkit), TypeScript, Material UI, SCSS
modules, Jest, Axios, Formik, Yup.
▣ Real estate investment company:
Developed panels to clients, enabling them to explore and invest in real estate properties, and
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administrative panel designed for efficient platform management.
Added multilingualism, which allowed the platform to be adapted for users from different
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countries.
Implemented form improvements with error validation and handling.
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Worked on front-end integration with services for token transactions and document signing.
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Ensured protection of user data on the client side through appropriate authorization.
⚒ Tech stack: React, Next, TypeScript, SCSS, MUI, Formik, i18n.
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Profile
I am a frontend developer with about 3 years of experience. My main technical stack is React + TypeScript. I've worked on
several real projects, where I achived excellent knowledge of technical aspects and experience working in a team. My
responsibilities included writing clean and scalable code. Actually, I am a great team player. I have experience in
development, working in a team that uses the Scrum methodology. I participated in the Git Flow process.
I am always looking to improve my knowledge and learn new approaches and technologies, and I would be happy to be part
of your team.

Languages
English Ukraine
Upper-Intermediate Native