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Maryna K.

Full-Stack Developer
3
years of experience

I am a versatile full-stack developer with a passion for creating robust, scalable, and high-performance digital solutions. Specializing in React.js, Redux.js, Next.js, Node.js, Express.js, and Nest.js, I am well-versed in building seamless user interfaces and powerful back-end services. My expertise extends to API development with GraphQL and REST, and I have hands-on experience with databases like MongoDB, Firebase, PostgreSQL, and MySQL. With strong English skills, I excel in collaborating with cross-functional teams, leveraging my strong communication skills to deliver high-quality solutions. With a problem-solving mindset and a focus on performance optimization, I continuously seek ways to improve and refine applications. Always eager to innovate, I am committed to learning and advancing my skills to stay ahead in a fast-evolving tech landscape.

Meet me

Education

Bachelor of Applied Science (BASc) Finance. Banking. Audit National Academy of Statistics, Accounting, and Audit. React Development. Full-Stack Development IT Hillel School

Languages

English Upper Intermediate

Skills

JavaScript
TypeScript
TypeScript

Recent Customer Reviews

Full Stack Developer
Kyiv, Ukraine
% Job Success
Rising Talent
Supertest
Neo4j
GitLab
Highcharts
ApexCharts
Algolia
Cognito
Github Actions
JWT
Auth0

Work History

FULL STACK DEVELOPER REACT.JS NEXT.JS REDUX NEST.JS NODE.JS TYPESCRIPT MONGODB DOCKER
Job in progress
Apr 14, 2025
-
Present
FULLSTACK DEVELOPER (REACT + SUPABASE) – MVP FOR GAMING PLATFORM
Job in progress
Apr 24, 2025
-
Present
Present
Contact me on Upwork
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Employment History

No items found.

Projects

Full-Stack Developer

Playground

Duration:
Playground is a SaaS design platform. You can design anything with thousands of templates to create logos, t-shirts, posters, and more.
Technologies
RadixUI
ChakraUI
TailwindCSS
Stripe
React
Requirements
Implement user authentication with email/password and third-party providers (Google, Apple) and add email verification functionalit. Ensure secure payment processing with Stripe, including invoice generation and refund handlin. Create a user dashboard to display account informatio. Develop a responsive UI layout that adapts to different screen sizes, including mobile device. Improve error handling and user feedback in case of failed image generatio. Implement role-based access control for different user permission.
Results
Implemented user authentication using both email/password and third-party providers like Google and Appl. The registration process includes an email verification system that ensures users confirm their email addresses before gaining full access to the platfor. Payment functionality was integrated with Strip. On the frontend, designed and developed a responsive dashboard that displays key account information such as subscription status and billing details, providing a smooth user experience across various device. Improved error handling in the application to provide users with clear and actionable feedback when image generation requests faile. Implemented role-based access control to manage different user permissions and ensure secure access to various feature. These enhancements contributed to the overall security, usability, and scalability of the platform, ensuring that both the user interface and backend systems were well-integrated and efficien.

Front-End Developer

LogRocket

Duration:
LogRocket helps you understand problems affecting your users, so that you can get back to building great software.
Technologies
PostgreSQL
TypeScript
TypeScript
React
Requirements
Implement creation of custom dashboards with dynamic chart additions and removal. Build filtering syste. Develop real-time data updates with state managemen. Add interactive features for exploring session-level data within chart. Develop a responsive UI with cross-browser suppor.
Results
Implemented custom dashboards with dynamic chart additions and removals for flexible data visualization. Built a comprehensive filtering system to refine displayed data efficiently. Developed real-time data updates with state management for seamless user experience. Added interactive features to explore session-level data within charts, enhancing analytical capabilities. Designed a responsive UI with cross-browser support to ensure accessibility across different devices.

Full-Stack Developer

Indemn

Duration:
Indemn is the first fully conversation-native insurance platform designed to simplify the process of learning about and purchasing coverage. By leveraging AI-powered chatbots, Indemn provides instant, personalized support—answering questions, generating customizable quotes, and executing service requests seamlessly.
Technologies
Express.js
Node.js
Stripe
Material UI
TypeScript
Requirements
Build APIs for user registration and authentication, managing quotes, and updating policie. Integrate payment systems to facilitate policy purchases and ensure secure transaction. Create and maintain a database to store customer data, policies, and service request. Implement security measures to protect sensitive customer data, including data encryptio.
Results
A RESTful API was developed to manage user registration, authentication, quotes, and policy updates. Payment systems were integrated to allow secure online policy purchases. A database structure was designed to store customer data, policies, and service requests efficiently. Security measures were implemented to protect sensitive customer information, including data encryption.

Full-Stack Developer

Hirenest

Duration:
Hirenest helps small, medium, and large businesses around the world gain a competitive advantage in the modern talent marketplace with Automated Applicant Evaluation, Pre-hire assessments, and Application tracking system.
Technologies
TailwindCSS
Next.js
Stripe
TypeScript
TypeScript
Requirements
Optimize frontend performance to reduce load times and improve responsivenes. Develop API endpoints for third-party HR tools and ATS integratio. Implement a recommendation system that suggests relevant tests based on job role. Build a real-time tracking dashboard to monitor progres. Integrate data visualization tools to generate interactive charts and graphs for improved analytical insight.
Results
Enhanced frontend performance for faster load times and improved responsivenes. Developed API endpoints for seamless integration with third-party HR tool. Implemented a recommendation system to suggest relevant tests based on job role. Built a real-time tracking dashboard with interactive data visualizations for better insights into candidate assessment. Integrated advanced data visualization tools to generate interactive charts and graphs, enabling better insights into test performance and hiring trend.

Customer reviews
are always valuable.

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See Our Work

The developers managed to do a large chunk of work in a short period of time. I recommend working with Incode Group for JavaScript development. Thanks to their unrivaled communication and expertise, they know how to do it in the best way possible and make it work, and the business pays off and monetizes.

John McCoy, CEO ProprHome
Lisbon, Portugal
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John McCoy

The MVP saw marked improvement thanks to Incode Group’s smooth communication and dedication to initial requirements. Their project management was a highlight of the engagement, as were their independent, methodical approach and honesty.

Kevin Peters, Agile Rockstars
Hamburg, Germany,
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Kevin Peters - CTO at Agile Rockstars from Hamburg, Germany.
Dan - Project Manager at Agile Rockstars LLC.

All the outsourcing their team completed was expertly done. Incode Group follows instructions carefully. They’re skilled, creative, and dedicated to achieving set goals. Customers can expect a professional development team that delivers in a timely manner.

Shane Robinett, Knetik Inc
Altamonte Springs, Florida
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Shane Robinett - CTO at Knetik Inc
Altamonte Springs, Florida
Mike Stewart - Project Manager at Knetik Inc

We developed an ERP/MRP web app for a successful e-commerce platform. Development process was smooth, and results were very satisfying. Communication is good, and developers are professional and knowledgeable. We are looking forward for more projects to do together.

David Tarbay, Head of Product
Tel Aviv, Israel
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