Top freelancers

Programming

Java

Spring Security

Pavlo

Java · Bot Development

78 0

5.0

6 432

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Factory Work Tracking System (Telegram Bot + Admin Panel)

500 USD

0 131

Factory Work Tracking System (Telegram Bot + Admin Panel)

Java

This project is a full-featured system designed to automate work tracking and payroll calculation in a production environment. It consists of a Telegram bot for employees and a web-based admin panel for management and analytics. The Telegram bot…

700 USD

0 105

LeadFlow CRM

Java

LeadFlow CRM is a client data management system designed for efficient lead processing. The platform allows users to upload files, automatically parse client data, and store it in a database. Users can update client statuses, leave comments, and…

2000 USD

0 212

DMarket Competitive Trading Bot

Java

DMarket Competitive Trading Bot is a competitive execution tool built for CS2/DOTA 2/RUST trading on the DMarket platform. Unlike the fully autonomous AI version, this system does not make trading decisions independently. The user manually defines…

3000 USD

0 197

DMarket AI Trading Bot (CS2)

Java

DMarket AI Trading Bot is a fully autonomous CS2 skin trading system built for the DMarket platform. The bot independently analyzes the marketplace, identifies profitable skins, executes purchases, manages pricing strategy, and completes sales -…

Maksim Dzyuba

Python · Java

36 0

5.0

535

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67 USD

0 612

Social network functionality API

Java

API with the functionality of the social network. Functional: registration, authorization using JWT, creation and editing messages, the possibility of subscribing to other users to view their messages in one page. Groovy (JVM programming language…

Seller for the sale of the jewelry store

9 USD

0 1 035

Seller for the sale of the jewelry store

Java

Program with graphic interface, performed in Java, with Swing library. There are a few different menus. With their help, the data is stored in the Postgres database.

Nataliia Oleksenko

Java · Web Programming

10 0

1 073

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Hi there, I'm excited to offer my services as a developer with over 2 years of experience in web development. I have experience in Java, Spring, Spring Security, Prometheus, Grafana SQL, HTML, CSS, JS, jQuery, ajax, Docker

5000 USD

0 416

Cryptocurrency exchange

Java

Fully functional cryptocurrency exchange. Features: 9 ways to buy cryptocurrency using cards, 3 within the exchange and 6 external. Ability to transfer funds. Spot trading. Cryptocurrency exchange. Available localization in English, Czech, French,…

90 USD

0 620

Metrics collection from the Java program

Java

Installed and configured Prometheus to monitor resources. Wrote Prometheus configuration file to define target metrics. Monitoring of the use of RAM, processor, number of active threads and request execution time is configured. Installed and…

2 747

Investment portfolio tracking service

Java

Service for tracking your cryptocurrency, stocks and currency assets. You can obtaining the sum of all assets and the sum of each group of assets, viewing the investment portfolio of other users, searching stock by symbol and retrieve data from the…

Vitalii Shaforostov

Java · Bot Development

9 1

802

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Hello! I'm Vitalii, a passionate and results-driven Java Developer based in Ukraine. With a strong background in software development and a knack for problem-solving, I bring a wealth of experience to every project I undertake. As a Freelance Java Developer, I specialize in creating robust and scalable applications that meet the unique needs of my clients. My expertise extends across the entire software development life cycle, from conceptualization and design to implementation and maintenance. Technology Stack: Programming Languages: Java, Java EE Web Technologies: Spring Framework (Spring…

34 USD

0 818

HardCodeBot for Education

Java

The telegram bot for educational purposes. To prepare for an interview or simply to check your knowledge. Written on Java/SpringBoot, a postgres database, and there is also the possibility of receiving donations

Sardorbek Abdimajidov

Java · Databases & SQL

0 0

165

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0 395

The Warehouse

Java

Warehouse is a service of data management and monitoring. HTTPS://github.com/abdimajidov/warehouse The Technologies Used: by Java The Spring Boat The Spring JPA Spring Security PostgreeSql Thymeleaf Html css

Vladislav Martishevsky

Java · Web Programming

3 0

149

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0 453

LinguaShcool - system for language schools

Java

LinguaShcool - is a system for language schools that helps to manage students, groups, teachers, lessons, payments, schedules, and replacements. The system supports 3 types of users: manager, student, and teacher. Technology Stack: Java 8, Spring…

0 7

Smart Activity Stream

Java

I took part in developing Smart Activity Stream. The project is intended to show activities in the Activity Stream in relevancy order using ML.

0 430

Office Online Integration

Java

The task was to integrate Microsoft Office Online into eXo Platform so that users can use Office Online to edit their documents. I studied API of Office Online (WOPI), created and implemented architecture of the module, successfully integrated the…

0 276

Only Office add-on

Java

I've participated in developing Only Office add-on for eXo platform. The add-on allows users to edit office documents directly on the platform. I study the Only Office API for integration, developed web-services layer and frontend.

11 USD

0 20

The Reindeer FTP

Java

The contractor had a ready system for managing the composition of autoparticles on the basis of Java, Spring. After the integration of one of the suppliers, there was a need to send the data about the order of that supplier to the specified FTP…

Vitalii Oleksenko

Java · Web Programming

0 0

135

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0 218

Investment portfolio tracking service.

Java

Service for tracking cryptocurrencies, stocks, and currency assets. It allows you to get the total amount of assets and the amount of each asset group, view the investment portfolio of other users, search for assets by symbol, and download data from…

Abdullah Akbarov

Java · Python

0 0

133

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Looking for a software wizard to craft your digital dreams? Look no further! I'm your go-to engineer, skilled in Java, Spring Boot, SQL, HTML, CSS, Python, and more. Seamlessly connecting front-end and back-end, I make your projects shine. My code is not just efficient; it's user-friendly magic. With Git, Maven, Eclipse, and more, I manage projects effortlessly. I'm always learning to stay on top of the latest tech. Your success is my mission! Whether you need a collaborator or a lone ranger, I'm here. Short-term or long-term, I've got you covered. Ready to make your digital dreams a reality?…

Dmytro Zakushniak

Java · Bot Development

0 0

105

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Backend Developer (Java/Spring) & AI Automation Expert (Python)I specialize in the architecture of complex backend solutions and intelligent Telegram bots. With a background in Computer Engineering, I don't just write code; I design systems built for high loads and stability.My Technical Stack: Java (Core, Spring Boot, Security, JPA): Development of complex corporate systems, bank-grade security, and scalable APIs. Python (AI/ML, OpenCV, YOLO): Creating smart bots with object recognition and AI integration (ChatGPT/Gemini/DeepSeek). Data: Design and optimization of MySQL/PostgreSQL databases…

Igor

Java · Web Programming

0 0

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I am a Java developer focused on building secure and reliable backend applications using Spring Boot. My experience includes developing REST APIs, implementing JWT authentication, configuring Spring Security, handling exceptions, and working with relational databases such as PostgreSQL. I follow clean code principles and pay great attention to security, stability, and maintainability of the codebase. I’m open to freelance projects and ready to help you design, implement, and deploy the backend part of your application.

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