Grigory Peretyaka
Offer Grigory work on your next project.
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Offer work 
Dnepr,
Ukraine
13 hours 27 minutes back
responds to 75% of messages
available for hire
6 Safes completed
2 months 19 days back
6 clients
73 proposals made
age 38 years
on the service 2 years
Rating
Language proficiency level
Українська: fluent
English: advanced
Русский: advanced
CV
About Me:
10+ 𝘆𝗲𝗮𝗿𝘀 as a CTO and have been in the IT market since 2007. Our team consists of professionals: backend and frontend developers, designers, testers, and project managers. I have a Top rated on Upwork. Our team has successfully completed over 300 projects of varying complexity.
Approaches to Development:
- The client is our partner.
- We will create a product that will help your business scale.
- We strategically think and work to make your goals a reality.
- Our fast pace is ensured by a team that includes project managers, developers, testers, team leads, and UX/UI designers.
- We ensure transparency in the process using Jira and organize regular progress discussions with the client.
Expertise:
Our expertise lies in developing custom websites, mobile applications, SaaS solutions, and E-commerce projects:
✔️ JavaScript technologies: React.js, React Hooks, Node.js, Redux, React Native, jQuery, Ext JS, Material UI, SPA, Strapi, Gatsby.
✔️ API - RESTful, AWS integration and development
✔️ Databases: MySQL, PostgreSQL, Firebase, Sphinx, MongoDB, Redis
✔️ Page creation: HTML, CSS, LESS, SASS, Bootstrap, AJAX, JSON
✔️ DevOps and other technologies: Linux, Git, Docker, GraphQL, Composer, GRPC (Protobufs), Docker, Sockets, Blockchain
✔️ TypeScript
Approaches to Design:
The success of a project depends on how well its design is created. Our team approaches design decisions very meticulously:
✍ Deep analysis of user behavior allows us to fully understand needs and preferences, enabling us to create more relevant and attractive solutions.
👨💻 We specialize in UX/UI solutions. We create interfaces that are not only visually appealing but also easy to use, thereby increasing user satisfaction.
🧠Our non-traditional approach to creating user interface design emphasizes brand individuality and helps stand out among others, creating a memorable image.
Our goal is for every user to feel comfortable and confident when using your product or service 👌
Skills and abilities
Programming
Mobile development
Administration
Portfolio
- All works 26
- Interface Design (UI/UX) 8
- Web Design 2
- Project Management 1
- Website Development 1
- Web Programming 5
- Mobile Apps Design 4
- Hybrid Mobile Apps 5
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Proremont website design
Interface Design (UI/UX)
Proremont — an innovative online service that allows users to instantly receive an estimate of the cost of renovating an apartment or house using artificial intelligence. We have created an interface that combines ease of use with modern design, so the calculation process is as convenient and transparent as possible.
The main focus is for the user to receive an accurate result in just a few steps without the need for technical knowledge or additional consultations.
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Redesign of the SEO agency website
Interface Design (UI/UX)
Complete redesign of the SEO agency's website aimed at modernizing online presence and increasing user engagement. The main task was to create a clean, professional, and conversion-focused design that highlights the agency's expertise and provides a user-friendly experience.
The new interface emphasizes key services, showcases detailed case studies, and simplifies the path for potential clients to contact the team. The design is fully responsive and ensures comfortable interaction across all devices.
… Key solutions:
Modern minimalist UI focusing on clarity and professionalism
Intuitive navigation for a smooth user journey
Informative service pages and sections with detailed case studies
Strong CTAs throughout the site to increase conversion
Fully responsive design for desktop, tablet, and mobile devices
SEO and performance optimization in line with the agency's values
The redesign not only updated the brand's visual identity but also improved usability, helping the agency better engage with its audience and convert visitors into clients.
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Turnkey Task Manager/CRM system React, Node.js, PostgreSQL
Web Programming
Task Manager - a comprehensive tool for organizing and optimizing work processes in business. The platform helps manage tasks, assign responsibilities, and increase team productivity.
Task organization: easily create, assign, and categorize tasks for different projects or teams. Set priorities based on deadlines and importance to ensure everything is completed on time.
… Assignment and delegation: quickly distribute tasks among team members by adding details, deadlines, resources, and instructions. Track progress and ensure accountability.
Collaboration tools: support team interaction through discussions, file sharing, and status updates directly within tasks. Everyone stays informed and engaged in the process.
Deadline management: set clear timelines, receive timely notifications, and monitor progress to ensure tasks are completed on time. Easily adjust schedules and deadlines as needed.
Performance analytics: gain insights into productivity, team effectiveness, and task closure speed. Identify bottlenecks and growth points to enhance efficiency.
Flexible workflows: adapt the task manager to your business needs - customize workflows, task templates, and notifications according to your processes.
Integrations: seamlessly integrate with other tools and platforms that the team uses daily, reducing the need to switch between different applications.
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NearbyNavi | Navigation Nearby Turnkey Application on RN
Hybrid Mobile Apps
Discover local gems with NearbyNavi
Local recommendations: NearbyNavi offers curated recommendations of popular places nearby - restaurants, cafes, parks, museums, and much more. You will always be aware of current locations and places worth visiting.
… User reviews and ratings: gain insights from the community - read reviews and view ratings for each location to make informed decisions about where to go and what to do.
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WarehouseScan Mobile application for warehouse employees RN
Hybrid Mobile Apps
Barcode scanning: the WarehouseScan+ application is equipped with a barcode scanning feature that allows warehouse workers to scan codes on individual products. This can be done using the built-in camera of a smartphone or tablet.
Real-time inventory management: during the scanning of products, the application updates the inventory database in real-time. As a result, the system always shows the most accurate and up-to-date information about the quantity and location of each item in the warehouse.
… Creating packages: warehouse workers can create packages or orders directly in the application. They enter customer data, delivery address, and any special instructions. After creating a package, products can be added to it.
Linking products: after scanning a product, the application prompts the user to link it to a specific package. The user can select the package by finding it by the customer's name, order number, or by scanning a separate barcode of the package.
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Etesal Health | Healthcare Platform | React, Node.js
Web Programming
This online service is created to simplify the process of making an appointment with a doctor, providing users with easy access to medical specialists. The platform allows patients to find doctors, check availability, and book appointments without the need for calls or personal visits.
Key features:
… Doctor search and profiles: Users can search for doctors by specialty, location, and rating. Each profile includes qualifications, reviews, experience, and consultation cost, helping to make informed decisions.
Appointment booking: The service offers a simple interface for scheduling visits according to the doctor's availability. Users select a convenient time and receive instant confirmation.
Online consultations: For added convenience, the platform offers virtual consultation options, allowing patients to communicate with doctors without leaving home.
Reminders and notifications: The system automatically sends reminders about upcoming visits, reducing the risk of missed appointments.
Secure storage of medical information: Users can save and view their medical records, prescriptions, and consultation history in a protected online account.
Payment integration: The service supports built-in payment systems for easy and quick payment of consultations, ensuring the most comfortable user experience.
This project optimizes access to medical care, enabling patients to easily find and book appointments with verified specialists. Combining convenience and efficiency, the platform aims to improve interaction with the healthcare system and make it more accessible.
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Coffee in London
Interface Design (UI/UX)
This website for Coffee in London is created to convey the warm, cozy atmosphere of the establishment and highlight the high quality of coffee that the coffee shop is known for. The site provides convenient access to information about the menu, location, events, and online ordering options.
Key features:
… Menu display: The site features a detailed, visually appealing menu with descriptions of various types of coffee, baked goods, and drinks, allowing visitors to familiarize themselves with the offerings before visiting or placing an online order.
Location and hours: An interactive map clearly indicating the coffee shop's location in London and its hours of operation helps customers easily find the establishment and plan their visit.
Online ordering: The site is equipped with a user-friendly online ordering system for pickup or delivery, simplifying the coffee purchasing process.
Events and special offers: Visitors can stay updated on current events, promotions, and discounts from Coffee in London, fostering community engagement and repeat visits.
Loyalty program: The website implements a loyalty system that allows customers to earn rewards for frequent visits or purchases, strengthening brand loyalty.
Social media integration: The site is connected to the coffee shop's social media accounts, enabling users to directly follow updates, promotions, and new menu items.
Reviews and recommendations: A dedicated section with customer reviews and opinions helps build trust and showcase positive visitor experiences.
Feedback form: Users can easily contact Coffee in London through a form on the website—for questions, feedback, or special requests.
Created to convey the charm and spirit of the local community, the site provides a pleasant and convenient online experience for both new and regular customers, inviting everyone to enjoy the best coffee in London—at home or in the cozy atmosphere of the coffee shop itself.
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Trips | Web/Mobile app React Native, Node.js
Web Programming
Trips — is an app created to make taxi search quick, simple, and reliable, offering a convenient and intuitive experience for users with different needs and preferences. The app is aimed at a wide range of clients, offering various car options depending on the budget — from standard to business and premium classes.
Key features:
… User-friendly interface: The app has a modern, stylish design with trendy rounded shapes, creating a pleasant and understandable interface for all users.
Variety of cars: Trips offers three car categories — standard, business, and premium — so each user can choose the suitable option based on their needs and budget.
Driver profiles: Each driver has a detailed profile with ratings, reviews, experience, and information about the vehicle, helping users make an informed decision before ordering.
Real-time driver tracking: Users can see the location of the assigned driver in real time, providing confidence and allowing them to prepare for their arrival.
Transparent pricing: The app displays the cost per kilometer, ensuring full transparency and excluding hidden charges or unpleasant surprises during the trip.
Built-in chat: The integrated chat feature allows direct communication with the driver, ensuring quick coordination and the ability to pass on special requests or clarifications.
Trips is an app you can trust if you're looking for a reliable, convenient, and tailored taxi service. It guarantees a comfortable ride every time, making it easy to get from point A to point B without unnecessary hassle.
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Car Wash Finder. Web application.
Interface Design (UI/UX)
Car Wash Finder — is a dynamic and community-driven platform designed to help users easily find, compare, and contribute information about car washes in their area. Using geolocation technology, the platform provides personalized recommendations while fostering the development of an interactive community where both users and operators improve engagement.
Main features:
- Smart geolocation— instantly find the best nearby car washes with real-time location tracking.
… - User reviews and ratings— receive honest feedback from the community and share your own experience.
- Dynamic pricing and features— stay updated on the latest prices and service offers.
- Community rewards— earn points for contributions and redeem them for exclusive bonuses.
- Operator portal— business owners can manage listings, respond to reviews, and offer promotions.
- Interactive maps— explore car washes with an easy-to-use map interface and get instant directions.
- Mobile device convenience and app readiness— designed for smooth operation on all devices.
Thanks to an elegant, user-oriented design and a focus on current, crowd-sourced ideas, this platform transforms how users find and interact with car wash services.
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Turnkey cross-platform fitness application | React Native
Hybrid Mobile Apps
This mobile fitness app is designed to help users achieve their health and fitness goals through personalized workout plans, progress tracking, and expert guidance. Focusing on user experience and motivation, the app provides a comprehensive platform for maintaining fitness, health, and activity.
Key features include:
1. Personalized workout plans: users receive individual training programs based on their fitness level, goals, and preferences, whether it's weight loss, strength training, or overall fitness improvement.
…
2. Progress tracking: the app allows users to monitor their workouts, track progress over time, and visualize achievements with detailed charts and performance reports.
3. Video lessons and instructions: each exercise in the workout plans is accompanied by high-quality video demonstrations, ensuring users perform movements with correct form and technique.
4. Nutrition guidance: the app offers tips on meal planning and nutrition, helping users choose healthier foods that complement their fitness journey. Social integration: users can communicate with friends, share achievements, and participate in competitions, creating a motivating community environment.
5. Push notifications and reminders: timely alerts encourage users to stick to their workout, nutrition, and fitness goals.
Integration with wearable devices: the app syncs with fitness trackers and wearable devices to monitor additional metrics such as heart rate, steps, and calories burned, providing a holistic view of the user's health.
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SM Home Mobile App for Real Estate
Web Programming
Finding a new home is one of the most significant decisions you'll ever face, and I designed this app to simplify, expedite, and personalize that journey for users.
Comprehensive Property Insights:
I ensured users can access detailed information about each property, including high-quality images, virtual tours, floor plans, and 3D walkthroughs. Each listing features thorough descriptions of the building, its infrastructure, materials, energy efficiency, and more.
…
Developer and Agent Profiles:
The app showcases in-depth profiles of developers and real estate agents, highlighting their history, reviews, and ratings. Users can connect directly through the app to schedule viewings, request more information, or negotiate deals.
Financial Tools:
I integrated built-in calculators to help users estimate mortgage payments, down payments, and potential returns on investment.
Interactive Map Exploration:
Users can explore new buildings on an interactive map that provides real-time information about nearby schools, parks, public transport, shopping centers, healthcare facilities, and more, enhancing their overall experience in finding a new home.
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eCommerce Website | UI/UX Design
Web Design
The task
Develop the design of an online children's clothing store using the principles of UI/UX design.
…
Ronnie - online store dedicated to children's clothing from newborns to teenagers, was conceived with a designer's passion for creating a beautiful, thoughtful, and convenient user experience.
The UI design was carefully crafted with a color palette that exudes warmth and comfort, utilizing light colors such as Vanilla Beige (#F1E4D4) for a pleasant and soothing user experience. To add a touch of vibrancy and guide users to take action, we incorporated an accent color, Opal Green (#0F5C58), for CTA buttons. This not only enhances the visual appeal but also ensures that users are intuitively directed to key interactions.
After deep research into common e-commerce practices, we organized the catalog into categories, showcasing popular items and highlighting new arrivals. This structure aids users in effortlessly navigating the diverse range of children's clothing available on the website. The website provides a detailed filtering system to simplify the search process for users, making it easy for them to find the perfect item.
The detailed item pages follow a clean and light design philosophy, allowing users to quickly access all the information they need and complete their purchase in just a few clicks.
The design embraces the current trend of using a light-style UI with rounded corners for elements. This modern aesthetic not only aligns with current design preferences but also enhances the overall visual appeal of the website.
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Malevich Corporate Website UI/UX Design
Web Design
The task
Create a modern website design for an IT company.
… The solutions
Malevich website reflects the essence of the IT company and provides visitors with a visually compelling and user-friendly journey.
The website is divided into six main sections - About Us, Cases, Expertise, Career, Technology, and Blog.
The homepage is a dynamic canvas, a visual symphony that introduces visitors to the world of Malevich Studio. The sleek design, infused with a blend of modern aesthetics, welcomes users into an atmosphere of innovation.
The technology page is about the company's culture, values, and journey, making visitors feel connected to the people and passion behind Malevich Studio.
Each case of the company study is presented with visually compelling elements, highlighting the challenges and solutions in a way that is both informative and aesthetically pleasing.
Navigating the Expertise section is like exploring a map of our company's mastery. Visually distinct categories guide visitors through our areas of expertise, using clean design and engaging visuals.
For those considering joining the team, the Career page is designed as a doorway to possibilities. The user interface is intuitive, presenting job opportunities with clarity and encouraging potential candidates to envision themselves as part of the Malevich Studio family.
The Blog section is designed as a digital magazine where visitors can explore interesting topics.
As a conclusion, Malevich is a website and friendly space where you can learn, explore, and maybe even get inspired.
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Delivery App | UI/UX Design
Mobile Apps Design
Task
Develop a design for a parcel delivery app.
… Solution
The parcel delivery app is designed to simplify the shipping experience with a range of user-friendly features. The app's intuitive design allows users to track their parcel's journey in real-time with a live tracking feature, whether it's a gift for a friend or an important document.
The app ensures secure transactions, providing peace of mind when making payments. Sensitive information is handled with the utmost care, making the entire process safe and reliable. Users can receive instant notifications about the parcel's status, from pick-up to delivery. We keep them informed every step of the way.
The app's light design style with accent green and yellow colors brings freshness to the user interface. The use of rounded corners on elements follows the latest design trends, offering a modern and visually pleasing look.
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Smart Clinic - website for Dental Clinic React
Website Development
The challenge
Designed and developed site for dental clinic Smart Clinic.
… Solution
Designed and developed website for Smart Clinic dental clinic. Site is based on React.js. Doctors appointment form implemented. Location services were implemented using GoogleMaps API.
Website has information sections to represent all of clinic's specialisations. Each of them contains testimonial and gallery widgets.
Site is fully responsive and optimized to give the best experience to all visitors - mobile and desktop users.
Smart Clinic - website for Dental Clinic React
Reviews and compliments on completed projects 6
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Real expert -
Craft master -
Quick answers -
First-class quality -
Nice communication -
High responsibility -
Great price -
Lightning fast
17 March
346 USD
The first 3 sections of the website (Design)
Quality
Professionalism
Cost
Contactability
Deadlines
Great team, I really enjoyed the collaboration, and the quality of work is top-notch. They make revisions without questions, with understanding, and very polite communication. I definitely recommend — this is a team of highly qualified specialists, with whom it is pleasant to collaborate.
Igor Melnitsky
| Personal | Response review
30 May 2025
204 USD
Design the main page of the app UI/UX
Quality
Professionalism
Cost
Contactability
Deadlines
Excellent work. Fast communication, professional approach to the task. I recommend!
Alexander F.
| Personal | Response review
29 August 2024
254 USD
Design of a humanitarian project website (online store)
Quality
Professionalism
Cost
Contactability
Deadlines
Great team! Professional and creative! Quick agreement on changes and creativity! We will continue to collaborate!
Victoria Ziryanska
| Personal | Response review
16 August 2024
302 USD
Step-by-step website redesign (in this project, the Main page)
Quality
Professionalism
Cost
Contactability
Deadlines
Everything is fine! The team is always in touch, quickly makes the necessary adjustments. I am satisfied with the work!
Denis Denis
| Personal | Response review
10 June 2024
216 USD
Design of the Main Page of an online store.
Quality
Professionalism
Cost
Contactability
Deadlines
executed at a high level
Zamovnik Matischuk
| Personal | Response review
4 June 2024
304 USD
Design of application stage 1
Quality
Professionalism
Cost
Contactability
Deadlines
Well done the job, we will probably continue the work
Petro Polyuk
| Personal | Response review
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