Upwork home
Sign up
Secondary

Hire the best Java Developers in Sofia, BG

Check out Java Developers in Sofia, BG with the skills you need for your next job.
Hire freelancers
  • $27 hourly

    • 5.0/5
    • (39 jobs)
    Certified Senior Software Engineer with 5 years of experience in Backend Developement.. Certifications: - Oracle Certified Associate Java Programmer - 75% - Oracle Certified Professional Java Programmer - 80% - VMware Spring Professional Certification Exam - 85% - Oracle Database 19c Administration Level 1 - 65% Courses and Practice tests: - Over 40 hours of educational video courses for Java EE - Over 800 practice tests written for the VMware Spring Professional Certification Exam - 200 practice tests written for Oracle Database 19c Administration Level 1 Exam - 100 practice tests for OCP Java exams Techlogies I feel confident working with: - Java EE - Collections, Streams, Multithreading, JDBC, Servlets, etc. - Spring/Spring Boot - AOP, MVC, Security, REST, etc - Reactive programming - Project Reactor, Spring WebFlux - Hibernate - RDBMS(Oracle DB, MySQL, MSSQL, PostgreSQL) - JUnit, Mockito - Apache Kafka - Docker - Linux - Jenkins
    vsuc_fltilesrefresh_TrophyIcon Java
    Oracle Database Administration
    Core Java
    SQL Programming
    Java Persistence API
    Hibernate
    Object-Oriented Programming
    Relational Database
    Spring MVC
    SQL
    Spring Boot
    Data Structures
    Multithreaded Programming
    Java Collections Framework
  • $14 hourly

    • 5.0/5
    • (30 jobs)
    I have Bachelor's degree in Applied Mathematics, experience with data analysis and in software testing. I have strong analytical skills and critical thinking. I am a highly motivated, adaptable, analytical, reliable, and very responsible person, who enjoys taking on new challenges and learning new skills. I have experience with: - Financial Services Analytics – Predictive Modeling for Financial Services - Data Analytics Models in Quantitative Finance and Risk Management - Testing Documentation Skill: Test Cases, Test Scenario, Traceability Matrix, Bug Report with screenshots, project presentation with screenshots, user guide Tracking Tool: BugTracker, Bugzilla, Jira, Visual Studio, Microsoft Excel Life Cycle/Methodology: SDLC, STLC, Agile. Wireframe: Axure RP Database Skill - SQL, My SQL, Oracle Automation:- Selenium IDE ISTQB Certified Tester, Foundation level, Certificate No. 14-CTFL-1026-SEETB I am pretty flexible and respectful to working hours. I look forward to hearing from you.
    vsuc_fltilesrefresh_TrophyIcon Java
    Bug Reports
    Test Case Design
    Manual Testing
    Functional Testing
    Performance Testing
    Software QA
    Web Testing
    Usability Testing
    Microsoft Excel PowerPivot
    HTML
    SQL
  • $50 hourly

    • 5.0/5
    • (5 jobs)
    Full Stack Software Developer with Java and Typescript/React experience. Also experienced with AWS, NoSQL databases and architectural design.
    vsuc_fltilesrefresh_TrophyIcon Java
    NoSQL Database
    Architectural Design
    Architecture
    AWS Lambda
    Amazon DynamoDB
    Amazon Web Services
    TypeScript
    Microservice
    React
  • $50 hourly

    • 5.0/5
    • (1 job)
    Senior software engineer experience in cloud microservices and backend development with Golang, Node.js, C# and Java. Brief experience with web development with PHP, JavaScript, jQuery, vue.js and HTML.
    vsuc_fltilesrefresh_TrophyIcon Java
    Vue.js
    Prometheus
    Grafana
    Data Warehousing & ETL Software
    Docker
    Kubernetes
    Business Intelligence Software
    System Monitoring
    Cloud Services
    Microservice
    Node.js
    Golang
    C#
    SQL
  • $50 hourly

    • 5.0/5
    • (1 job)
    Hello! I'm an experienced Senior Software Engineer with a rich history of developing and fine-tuning software solutions across diverse sectors. My journey from an intern to a senior role has seen me delve into energy, data storage, and content management systems, each time turning challenges into opportunities. 🔍 Current Role: At SolarEdge, I serve as a Senior Java Backend Engineer, spearheading the development of a distributed monitoring system. I specialize in managing large data volumes and ensuring seamless processing through a microservices architecture. 🚀 Past Experience: - VMware: For 4 years, I played a key role in the vSAN UI team, contributing to the development of a user-friendly vSphere web client plugin while addressing backend and frontend challenges. - A-Tricks: I helped develop Sitetriks CMS, a high-performance platform built on ASP.NET Core. - Energovia: I kickstarted my career contributing to GETIX, a platform predicting energy prices using global data. 💡 Expertise: My forte lies in crafting intuitive UIs, deploying robust APIs, and orchestrating microservices to create resilient and efficient systems. I'm eager to bring my diverse skills to your projects, ensuring tailored solutions that meet your needs. Let's connect and explore the possibilities!
    vsuc_fltilesrefresh_TrophyIcon Java
    Angular
    Node.js
    JavaScript
    Apache Cassandra
    Git
    Apache Kafka
    MongoDB
    Spring Boot
    MySQL
    Apache Maven
    ASP.NET Core
    Python
    TypeScript
    C#
  • $40 hourly

    • 5.0/5
    • (1 job)
    Veteran Full Stack Developer proficient in wide range of programming tools and languages. Have expertise in both back-end and front-end development. Highly effective at working on any aspect of the development process with efficiency and accuracy. Hardworking professional with remarkable technical abilities developed over 7+ years experience in the field. Passionate about learning and working with the latest technology.
    vsuc_fltilesrefresh_TrophyIcon Java
    FastAPI
    MongoDB
    PostgreSQL
    MySQL
    Django
    Python
    PHP
    Laravel
    ExpressJS
    Node.js
    Spring Boot
    Angular
    Vue.js
    React
  • $35 hourly

    • 5.0/5
    • (10 jobs)
    🚀 Passionate Web & Mobile Development | Embracing Web3 & Blockchain 🌐 👋 Hello there! I'm Alex, your go-to expert for crafting exceptional web solutions and embracing cutting-edge technologies. With a diverse skill set encompassing Web Development, DevOps, Web3, and more, I'm here to help you turn your ideas into reality. 🌐 Web Development: I breathe life into your web projects, whether it's building a robust Java-based Spring Boot application, a sleek .NET Core solution, or a dynamic web application using React. My goal is to create user-friendly, scalable, and performance-driven web experiences that captivate your audience. 📱 Mobile App Maven: Building cross-platform mobile apps is a breeze for me. I leverage React Native and Flutter to create stunning, efficient mobile applications that work seamlessly on both Android and iOS. 🌐 WordPress Wizard: Need a website that's easy to manage and update? I specialize in WordPress development, delivering sleek, responsive, and customizable websites that cater to your unique needs. 🤖 AI Enthusiast: I'm deeply fascinated by Artificial Intelligence and incorporate it into my projects whenever possible. Let's infuse intelligence into your applications to automate tasks, analyze data, and provide insightful recommendations. ☁️ Cloud Expertise: I thrive in the cloud, having worked extensively with AWS CloudFront and Azure DevOps. From infrastructure design to deployment, I ensure your applications run smoothly and securely in the cloud environment. ⛓️ Blockchain Enthusiast: I believe in the transformative power of blockchain technology. Whether it's implementing smart contracts, developing decentralized applications, or exploring the latest trends in the blockchain space, I've got you covered. 🚀 Let's collaborate to bring your vision to life! I'm not just your developer; I'm your technology partner. Together, we'll navigate the digital landscape, innovate, and create remarkable solutions that set you apart in today's competitive market. 💬 Reach out to me, and let's discuss how we can elevate your project. Your success is my priority, and I can't wait to be part of your journey!
    vsuc_fltilesrefresh_TrophyIcon Java
    WordPress
    Blockchain
    Azure DevOps
    AWS CloudFront
    React Native
    Flutter
    React
    .NET Core
    Spring Boot
    Web Application
    Artificial Intelligence
    Web3
    DevOps
    Web Development
  • $80 hourly

    • 5.0/5
    • (17 jobs)
    - High quality software development. Focused on good design and architecture - Java and related technologies - Spring, Spring Boot, Docker - Solid experience with Eclipse RCP (SWT, jFace, EMF, GEF, GMF, BIRT) - Extensive knowledge in document formats and conversion (PDF, doc, docx, xls, xlsx) - Top rated in Upwork with excellent work history - Masters degree in Software Engineering - Sun certified Java developer
    vsuc_fltilesrefresh_TrophyIcon Java
    SQL
    Vaadin
    Object-Oriented Programming
    Spring Framework
    HTML5
    Core Java
    Apache POI
    Eclipse IDE
    JavaScript
  • $60 hourly

    • 4.7/5
    • (35 jobs)
    I am a software (quantitative) developer with 19 years of experience (from which 15 are as freelancer) During the last 12 years I have specialized one and only on implementing betting and trading strategies. Usually in C# or Java, and had one app using Flutter(nice modern web app). In most of the cases I am coding/using NinjaTrader 8 (NinjaScript) and Betfair API NG. Am coding for NT back from the year of 2010 when version 6.5 was still active and stable... And from 2009 am coding Betfair trading and betting algorithms (this was my first job as freelancer). On the second year UI was added, before that it was clear dataprocessing with multi threaded environment, everything running as background service. Later I have specialized in multi threaded data processing, storing and visualization - like ladders, dynamic tables, multi threaded data processing and betting engines - placing 20+ bets/orders in parallel in stand alone threads. Apps that replicate a lot of the functionalities of the popular apps like BetAngel and others. Synchronized separate thread engine for account balance)exposure and PnL processing. etc. etc... 2000++ threads DB engine for reading, decompressing and storing the BF ADVANCED historical files in a database. In practice as powerful the server is - as many threads can be added, currently it "burns" the CPU with 2000 threads, but if the CPU is doubled - the threads can be doubled to 4000+... Am also specialists in odds and data scraping bots (robots) for online bookmakers and auto bet placers (for bookies that do not have APIs) I can write a lot of things about me but it will be long and boring. When we get in touch I will send you a full CV. Best wishes
    vsuc_fltilesrefresh_TrophyIcon Java
    Financial Trading
    Trading Automation
    Trading Strategy
    Automation
    Scripting
    NinjaTrader
    Betfair
    API
    C#
  • $65 hourly

    • 5.0/5
    • (0 jobs)
    🚀 With over 15 years of experience in the tech industry, I am a seasoned technical leader, continuously recommended by industry experts. My extensive background in building complex web applications, designing robust software systems, and guiding organizational development has honed my ability to drive impactful technology development efficiently and with high quality. Professional Snapshot: ✅ Proven Expertise: Demonstrated history of designing and delivering high-quality software systems and infrastructure, ensuring rapid, efficient development aligned with business goals. 📚 Continuous Learner: Dedicated to staying current with the latest technologies and best practices. 🎯 Impact-Driven: Focus on ensuring technology development supports and accelerates business objectives. How I Can Help YOU: 🛠️ Zero to One: Build your initial MVP with flexibility and scalability in mind, ensuring lean development and frequent releases. ♾️ One to Infinity: Evolve, improve and scale your applications. Make them better, easier to run and cheaper to operate. 🔧 Technology Stack Selection: Choose the right back-end and front-end technologies tailored to your project needs. 🌐 Infrastructure Design: Expert in designing and automating infrastructure using Infrastructure as Code (IaC), with a specialization in AWS. ⚙️ Development Workflows:Set up or optimize development workflows to enhance efficiency. 🗺️ Technical Roadmapping: Translate business goals into a technical roadmap, guiding you through the implementation process. 👥 Team Building: Create a high-performing engineering team where engineers are autonomous and thrive. Recent Project - Joinmoment.io: I recently led the end-to-end development of joinmoment.io, where I was responsible for building the entire infrastructure, backend, and a significant portion of the iOS application using SwiftUI. Tech Stack at Joinmoment.io: Back-End Services: 🐍 Python + Django, ☕ Java + Spring Boot Databases: 🛢️ Postgres (AWS RDS), DynamoDB Infrastructure: ☁️ AWS (ECS, S3, Fargate, VPC, Aurora, RDS, DynamoDB, Lambda, CloudWatch) with Terraform Web Front-End: 💻 Typescript, React iOS Application: 📱 Swift, SwiftUI Deployment: 🚀 0/1 click deployment with Github Actions For more proof of my expertise and experience, check out my profile and LinkedIn.
    vsuc_fltilesrefresh_TrophyIcon Java
    Google Calendar API
    Docker
    Spring Boot
    Amazon Web Services
    Terraform
    Django
    Swift
    iOS
    TypeScript
    React
    PostgreSQL
    Flask
    Python
  • $45 hourly

    • 5.0/5
    • (3 jobs)
    Thanks for your watching my profile. I am Silvio , full experienced software developer who has over 7 years of strong experience. I started my career as a mobile app developer from colleague since then I have grown my development skill in mobile app development. At first I touched Android app development with Android SDK 16-Lollipop, that gave me way how to develop mobile apps. Since then I have concentrated on iphone as well as android phone , as I have owned swift and Object-C as well. From 2 years ago I started Hybrid app development with HTML/HTML5 and javascript. I have concentrated on React Native and IONIC very much until now. Also important thing is that I have integrated CI to those apps that I developed due to client's desire, I grew up my CI/CD skill,meaning that I have used some relevant CI/CD tools out there. Docker,Karma,Mocha are also familiar. Ruby on Rails: 2years Responsibilities: HTML/HTML5 : 6 years CSS/CSS3/LESS/SCSS : 6 years ✔Native -Swift : 3 years -Java for Android : 6 years ✔Hybrid -React Native , IONIC , Xamarin ,PhoneGap : 2 years ✔Service -Firebase 100% -GraphQL 70% -AWS 30% -Google API 100% -Push Notification 100% -SMS Authentication 100% ✔Backend experiences -Node/Mongo : 3 years (Express js) -PHP/MySQL : 4 years(Zend Framework,Symfony,Laravel) -C# , ASP.NET , DJango/Python : 1 year ✔Other experiences -Grunt/Gulp/Webpack -Meteor/Apollo -Karma/ Jasmine/ Mocha/ Travis CI -Git/Bitbucket -DevOps-Jenkins;Docker;Puppet;Ansible -Slack/Jira (★ I am good at) 👍 Uber App; 👍 Delivery App; 👍 Hotel booking App; 👍 Social App; 👍 Chatting App; All skills that are mentioned above are my owned skills that I possessed during my career. You can ask me any questions regarding to those fields and I am always ready to answer. My strengths are my attitude that I like to take challenges that I CAN do it, self motivated person, self disciplined. I am a good team player as well as has a good ability to lead the team. I can adopt to any kind of environment. I am a good listener and quick learner. I don't like to say weakness but I like to say scope for improvement that is I won't leave any ask in completely, I believe in my self and my hard work and I want perfection in every thing. I have fluent English as a Native level, I don't have any communication barrier. Thanks.
    vsuc_fltilesrefresh_TrophyIcon Java
    MeteorJS
    Xamarin
    React Native
    Firebase
    Ionic Framework
    Amazon Web Services
    SMS
    Android App Development
    Swift
  • $60 hourly

    • 5.0/5
    • (17 jobs)
    I am Full-stack Web Developer with experience in the following languages & platforms - TypeScript and JavaScript - .NET / C# - Spring boot / Java - Angular1 and Angular2-9 - Docker - Ionic 5 - Amazon Web Services - jQuery and Handlebars - NodeJS, NestJS - MongoDB, Mongoose ODM - MySQL - PostgreSQL - GraphQL - InvesifyJS - SequelizeJS ORM - RxJS - Stripe - QR bar code About me: - Passionate about writing quality and well-structured systems regardless of languages and technology - Learning every day - Inspired & Persistent - I never give up - Always reporting working time according to work I did because I prefer long-term relationships with my clients! Currently participating in the development of an Open-Source Commerce Platform for On-Demand Economy and Digital Marketplaces - Ever® and Open-Source Business Management Platform (ERP/CRM) focused on Fairness and Transparency - Gauzy (see portfolio for more details on both projects)
    vsuc_fltilesrefresh_TrophyIcon Java
    Angular 6
    MySQL Programming
    TypeScript
    jQuery
    GraphQL
    MongoDB
    RxJS
    Node.js
    JavaScript
  • $55 hourly

    • 0.0/5
    • (0 jobs)
    Experienced Software Engineer with 7 years of hands-on experience in building innovative software solutions. Skilled in leveraging advanced technologies to develop products that meet and exceed client expectations. Dedicated to crafting tailored solutions that drive business success. Passionate about continuous improvement, staying ahead in the ever-evolving tech landscape, and contributing to meaningful projects that make a difference.
    vsuc_fltilesrefresh_TrophyIcon Java
    jQuery Mobile
    jQuery
    jQuery UI
    Software Design Pattern
    RESTful API
    CI/CD
    Apache Kafka
    Apache Groovy
    Gradle
    Apache Maven
    Kubernetes
    Docker
    Relational Database
    Testing Framework
    Hibernate
    Spring Framework
    Front-End Development
  • $15 hourly

    • 5.0/5
    • (8 jobs)
    Windows Server | Azure AD | VMware | Linux | CCNA | Java SE | Java EE | Spring Framework | Web Services | Selenium WebDriver | RESTAssured | Postman | JMeter | ISTQB Foundation Level Certified | English | German |
    vsuc_fltilesrefresh_TrophyIcon Java
    VMware vSphere
    Postman
    Cisco Certified Network Associate
    Selenium WebDriver
    Transact-SQL
    German
  • $20 hourly

    • 5.0/5
    • (1 job)
    Good communication skills Flexibility / adaptability to different tasks Тolerant person Problem Solving / thinking / creativity person Willingness to learn and upgrade jobs skills
    vsuc_fltilesrefresh_TrophyIcon Java
    Test Automation
    Mobile QA
    Selenium WebDriver
    TestNG
    Microsoft Office
    Mathematics
    Computer Science
    Electronics
    Computer
    Customer Service
    Microsoft Excel
  • $15 hourly

    • 5.0/5
    • (4 jobs)
    Software Engineer ✅🗓️ 3+ years experience as a React/React Native Developer I'm a React and React Native developer willing to improve your business and bring your ideas into reality. Starting from the UI until delivering a live working app, I can handle any part of the development process. Focus on quality of code, accurate fulfillment of client requirements Skilled at team collaboration while working independently in remote projects. I am available to assist with resolving any issues in your project. Tech Skills: ✅ Back-end stack: Node.JS, Express.JS. ✅ Front-end stack: React.JS, React Native, Next JS. ✅ Front-end technologies: HTML5, CSS3, TypeScript, JavaScript, Redux, Redux-Saga, three.js. ✅ Front-end frameworks: Webpack, CSS Modules, React Query, GraphQL. ✅ Experience in Databases: MySQL, PostgreSQL. ✅ Area of expertise: Healthcare, Social Networks. ✅ Specific Application Development: Meeting Application for MS Teams, Video Editor in web, Viewer for Surgical Model Soft Skills: ✅ Able to quickly learn and apply new technologies. ✅ Development for me is a challenge where I am capable of creating complex projects and find the best solutions. ✅ Focus on quality of code, accurate fulfillment of client requirements ✅ Open for support 8 - 12 hours a day. ✅ Self-motivated and proactive, with demonstrated creative and critical thinking capabilities
    vsuc_fltilesrefresh_TrophyIcon Java
    .NET Core
    Product Development
    Websockets
    Apollo GraphOS
    Redux Saga
    React Native
    ASP.NET
    Java Servlet API
    Responsive Design
    SCSS
    Redux
    JavaScript
    TypeScript
    React
  • $50 hourly

    • 0.0/5
    • (0 jobs)
    PROFILE I am a highly motivated, bright and hardworking person, passionately in love with learning and solving problems, willing to jump into new topics, understand the context and solve technical challenges. During the exciting adventures of my careers, I've acquired strong creative, analytical, communication and technical skills. I'm passionate about building software that improves people's lives and transforms industries.
    vsuc_fltilesrefresh_TrophyIcon Java
    Servlet
    Core Java
    Enterprise Software Development
    Software Design Pattern
    Data Structures
    Docker
    Apache Kafka
    Apache Tomcat
    Redis
    PostgreSQL
    Spring Data
    Spring Boot
    Apache Maven
    Git
  • $25 hourly

    • 5.0/5
    • (2 jobs)
    🌟 Senior Java/ReactJS Developer | Full-Stack Expert 🌟 Hi! I'm Serhii, a seasoned Full-Stack Developer with 6 years of expertise in Java and ReactJS. 🚀 💼 Skills & Tech Stack Languages: Java, JavaScript Front-End: ReactJS, Redux Back-End: Spring Boot, Node.js DevOps: Docker, Kubernetes, AWS Other: RESTful APIs, GraphQL, Jenkins, Git 🌍 Experience Senior Developer GlobalLogic Led development of scalable web apps Ensured code quality and best practices Full-Stack Developer Epam Delivered end-to-end solutions 🎓 Education BSc in Computer Science Certified Java & ReactJS Developer 🌟 Why Work With Me? Client-Centric: I prioritize understanding and meeting your unique needs. Quality-Driven: I deliver high-quality, meticulous work. Innovative: I stay current with tech trends to bring fresh ideas to your projects. Let's build something great together! 📩
    vsuc_fltilesrefresh_TrophyIcon Java
    Front-End Development
    Back-End Development
    Concurrent Computing
    Web Development
    Redux
    CSS
    HTML
    HTML5
    CSS 3
    JavaScript
    Spring MVC
    Spring Framework
    Spring Boot
    React
  • $100 hourly

    • 0.0/5
    • (0 jobs)
    Profile I am an accomplished technology leader with a background in leading Research and Development (R&D) initiatives. My career has revolved around leveraging technology to drive innovation and create practical solutions. As the Head of R&D, I've successfully harnessed technology to solve complex challenges and improve processes. I'm eager to bring my technical expertise to contribute to the advancement of any organization.
    vsuc_fltilesrefresh_TrophyIcon Java
    Grafana
    SQL
    Apache Kafka
    Apache Maven
    Spring Boot
    Jira
    ELK Stack
    Kubernetes
    Agile Project Management
    System Monitoring
    .NET Core
    Architecture
  • $62 hourly

    • 0.0/5
    • (0 jobs)
    With over 15 years of professional experience in the software development area, I am a Software Development Team Lead and Senior Software Architect at SoftwareOne, a global leader in software and cloud portfolio management. I have multiple AWS certifications and a Master's degree in Software Engineering. As a Software Development Team Lead, I manage a team of talented developers and deliver high-quality cloud-native software solutions using Java, Spring Boot, Kafka, Docker, and Kubernetes. I also leverage my expertise in OOP, design patterns, web development, and Android development to create innovative and scalable applications that meet the needs of our clients. I am passionate about learning new technologies and paying attention to the details in every project I work on.
    vsuc_fltilesrefresh_TrophyIcon Java
    Product Development
    Web Application
    Product Backlog
    Web Development
    Node.js
    Redis
    RabbitMQ
    Apache Kafka
    React
    AWS Development
    MongoDB
    SQL
    Spring Boot
  • $85 hourly

    • 0.0/5
    • (0 jobs)
    Summary ? A backend developer with more than 20 years of experience in software engineering ? 9 years of experience in Enterprise applications development (Forex Trading) and more than 3 years in Telecommunications (Deutsche Telekom, A1.bg, Sinch.com). ? The combination of technical (Senior Developer/IT Architect/ DevOps) and management (IT Manager) background is helping a lot to balance between being keen on code quality and pragmatic focusing on the actual result ? Built from ground up the whole IT Infrastructure and Software for Meridian Capital Ltd. to provide B2B2C. ? Provide raw data to BI and Marketing teams and ready to use reports ? Keen on Agile processes as a tool helping teams to be effective in getting things done ? Keen on continuous delivery as a way of making those things live smoothly and seamlessly ? Keen on automating every routine piece of work not meant for humans
    vsuc_fltilesrefresh_TrophyIcon Java
    DevOps
    Golang
  • $18 hourly

    • 4.9/5
    • (22 jobs)
    I have: 1 year of experience as Project Manager 2 years as Technical Team Lead 8 years Talend developer 10 years as Java developer. 1 year as Python developer I have proficient knowledge and experience in: - Java EE (REST, SOAP, JPA, JSP, Servlets, Spring, Hibernate) - Java Core - Python - Data mapping and processing - Data mining and web scraping - Talend (TOS, TIS, TAC) - ETL processes - Cron/batch tasks and process automation - Redshift, Oracle, MySql, PostgreSQL, DB4o I've worked over the years for projects, related to e-invoicing and orders processing. I've also implemented successfully custom TAC web application (integrated with SVN and DB). And lots of other smaller Java/DB projects. I'm interested mainly in projects for data scraping and/or Talend.
    vsuc_fltilesrefresh_TrophyIcon Java
    WordPress
    HTML
    Talend Open Studio
  • $40 hourly

    • 4.7/5
    • (13 jobs)
    Stand-alone mobile app engineer with a great sense of trending features and the combination of them in the mobile app industry. Always keep in mind that users fall in love with the app from UI/UX at the first time. I specialize in objective-c/swift, Java and various iOS/Android frameworks, tools and I have hybrid experience working with several companies and startups. I am really proud of numerous users to have engaged with my apps that I have done from scratch or participated. Whenever I am highly available to discuss with your idea and you can reach out me at any time during the development. Best.
    vsuc_fltilesrefresh_TrophyIcon Java
    Cocoa API
    iPad App Development
    Mobile UI Design
    Mac OS App Development
    Android App Development
    iOS Development
    Swift
    Objective-C
  • $29 hourly

    • 5.0/5
    • (7 jobs)
    My professional experience as a software engineer began in 2004. Since then, I have participated in more than 15 successful software projects, including commercial retail platforms, search engines, web crawlers and billing systems. My technical skills are full stack. I can deliver products with both backend and user interface implemented. I use several technologies in my work * Backend - PHP - Yii 2 and Laravel 5 and above - JAVA - mainly backend - SvelteKit (NodeJS) - Relational databases - MySQL, PostgreSQL - Data indexes - Sphinx, ElasticSearch * Frontend - Angular (TypeScript) - Svelte - Vanilla (pure) JavaScript - Material Design - Boostrap Key strengths of my work are mostly - high quality - fully tested products modeled and developed with more than 10 yrs of experience - proper communication with the client - proper delivery of the product I have my own registered company, so I can offer legal contracts, invoicing and several types of payment instruments. Education - Bachelor's Degree in Computer Science and Network Technologies Certificate in Agile Management from the Project Management Institute (PMI-ACP).
    vsuc_fltilesrefresh_TrophyIcon Java
    Svelte
    Angular 10
    Yii
    Laravel
    jQuery
    PHP
    Data Scraping
    Demandware
    OpenStreetMap
    Indexing
    MySQL Programming
  • $15 hourly

    • 5.0/5
    • (7 jobs)
    Hello, my name is Roberto Lukarski and I am 29 years old. Currently, I am working as a Financial Controller in 10Bet and have a Bachelor's Degree in Finance. I have more than 4 years of experience in Excel, Jira, and financial analysis. My previous jobs at UpWork are mainly connected to data entry and internet research. I always finish my projects before the deadline, and you can count on me for projects with tight schedules.
    vsuc_fltilesrefresh_TrophyIcon Java
    Microsoft Excel
    Object-Oriented Programming
    Data Entry
  • $20 hourly

    • 5.0/5
    • (9 jobs)
    I am graduated computer engineer and self-developed Android and Android Wear developer. I'm working on my own mobile and wearable applications providing high quality UI functionality following the latest trends and guidance. Being heavy Android user I know that the best applications are those which are simple, straight-forward designed and good looking. I consider that the best seamless experience is provided when one application has the closest to stock look and it is clearly integrated in the eco-system.
    vsuc_fltilesrefresh_TrophyIcon Java
    Wear OS
    Wearable Technology
    Android SDK
    Android App Development
    Android
  • $47 hourly

    • 0.0/5
    • (0 jobs)
    I'll help you bring your ideas to life. With more than 5 years in the trenches and 3 years as a tech lead, we'll make this frictionless. I can build your web app, back-end services, APIs, scrapers, or bots. With over 50 API integrations for hotels, logistics carriers, and payment providers... There's very little I haven't seen. Additionally, I built and operate the largest land portal in Bulgaria. I've worked with e-commerce solutions, blockchain technologies, microservices, monoliths, and everything in between... Hosted on every cloud imaginable. Let's see how we can solve your problems today.
    vsuc_fltilesrefresh_TrophyIcon Java
    Google Cloud Platform
    Microsoft Azure
    Amazon Web Services
    Transact-SQL
    Git
    jQuery
    PHP
    JavaScript
    C#
    Angular
    ASP.NET
    React
    Python
  • Want to browse more freelancers?
    Sign up

How hiring on Upwork works

1. Post a job

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by

How do I hire a Java Developer near Sofia, on Upwork?

You can hire a Java Developer near Sofia, on Upwork in four simple steps:

  • Create a job post tailored to your Java Developer project scope. We’ll walk you through the process step by step.
  • Browse top Java Developer talent on Upwork and invite them to your project.
  • Once the proposals start flowing in, create a shortlist of top Java Developer profiles and interview.
  • Hire the right Java Developer for your project from Upwork, the world’s largest work marketplace.

At Upwork, we believe talent staffing should be easy.

How much does it cost to hire a Java Developer?

Rates charged by Java Developers on Upwork can vary with a number of factors including experience, location, and market conditions. See hourly rates for in-demand skills on Upwork.

Why hire a Java Developer near Sofia, on Upwork?

As the world’s work marketplace, we connect highly-skilled freelance Java Developers and businesses and help them build trusted, long-term relationships so they can achieve more together. Let us help you build the dream Java Developer team you need to succeed.

Can I hire a Java Developer near Sofia, within 24 hours on Upwork?

Depending on availability and the quality of your job post, it’s entirely possible to sign up for Upwork and receive Java Developer proposals within 24 hours of posting a job description.

Looking to hire for long-term or full-time assignments? See how Full-time hiring on Upwork simplifies the process.