Upwork home
Sign up
Secondary

Hire the best Java Developers in Nis, RS

Check out Java Developers in Nis, RS with the skills you need for your next job.
Hire freelancers
Clients rate Java developers
Rating is 4.9 out of 5.
4.9/5
based on 222 client reviews
  • $40 hourly
    • 5.0/5
    • (4 jobs)
    I am a dedicated Android developer with over 9 years of experience designing and building mobile applications. I specialize in using Java, Kotlin, Jetpack Compose, and the Android SDK to create apps that are not only functional but also visually appealing and user-friendly. Key Strengths: Expert in Android Development: Proficient in the latest technologies, ensuring apps are modern, responsive, and robust. Problem Solver: Skilled in identifying and resolving complex issues, and optimizing code for performance and efficiency. API Integration Specialist: Seamless integration of APIs to enhance app capabilities, from payment systems to social logins. Agile Development: Experienced in working within Agile teams, ensuring smooth collaboration and timely project delivery. I am passionate about turning ideas into high-quality Android apps that drive results. Let’s connect and bring your project vision to life!
    Featured Skill Java
    Google Play
    Android SDK
    Mobile App Testing
    Mobile App Development
    Android App Development
    Android
  • $25 hourly
    • 5.0/5
    • (3 jobs)
    I'm Ivan, an Android Developer with over 6 years of experience. I am proficient with writing code in Java and Kotlin and have an excellent understanding of OOP and SOLID principles. SQL database, MVVM and Clean architecture, GIT (GitHub, Bitbucket), Jetpack Compose, Dependency Injection, Develop applications that use RESTful APIs to connect to back-end services, Develop layouts for different screen sizes, Jira & Zeplin tools, Gradle, and Code refactoring. Publishing apps on Google Play store, Galaxy Store & App Store. Monetizing apps with AdMob ads and In-App purchases. Working with 3rd party libraries (Dagger + Hilt, Retrofit, Room, Volley, iText, Ffmpeg, OneSignal, Firebase, Picasso, Glide, Google Maps, GSON, Crashlytics, Firebase Cloud Messaging, Admob, CameraX, Coil, etc.). Basics usage of HTML5, CSS3, and JavaScript coding practices. Advanced problem-solving skills. ADDITIONAL SKILLS - Basic knowledge of iOS app development (Xcode – Swift 5 language) - Build and publish iOS applications in the App Store. Monetizing with AdMob ads - 3rd party libraries (Firebase Authentication and Realtime Database, PDFKit, Admob, etc.) - Beginner in a flutter - Adobe Photoshop & Adobe Illustrator LANGUAGE - English - Serbian
    Featured Skill Java
    Android UI Design
    Flutter
    Android App
    Kotlin
    Gradle
    JetPack
    Android SDK
    Android App Development
    Android Studio
    GitHub
    JSON
    Git
    RESTful API
    XML
  • $30 hourly
    • 5.0/5
    • (38 jobs)
    🚀 I build high-performance mobile apps from start to finish — whether you're launching a new idea or need help improving an existing app. I specialize in native Android (Kotlin) and iOS (Swift) development, with a strong eye for UI/UX and modern architecture using Jetpack Compose and SwiftUI. 🔧 What I bring to the table: ✅ Android Native (Kotlin, Jetpack Compose) ✅ iOS Native (Swift, SwiftUI) ✅ Firebase Integration (Auth, Firestore, Cloud Functions) ✅ AI Integration (OpenAI, DeepSeek) ✅ Full-stack development ✅ Figma to Code - Pixel-perfect UI ✅ Clean architecture, performance optimization, and scalability ✅ Deep linking, push notifications, REST APIs, third-party integrations ✅ App publishing to Google Play & Apple App Store
    Featured Skill Java
    Computer Science
    Material Design
    Native App Development
    Android Studio
    Android
    Mobile App Development
    Smartphone
    Android SDK
    Android App Development
    JetPack
    Mobile UI Design
    Figma
    Android App
    Kotlin
  • $70 hourly
    • 5.0/5
    • (6 jobs)
    Software developer experienced in advanced technologies research specifically Database programming, Natural Language Processing and Machine Learning, IoT, and robotics. Has expertise in desktop and web development projects and creating responsive and adaptive applications design. Working as a developer or a project leader on projects including .NET, Node.JS and SQL based software for hospitality management, accounting and transportation. Reliable working knowledge in Windows, Android, Linux, .Net, Node.JS, Java, Eclipse, Visual Studio, C#, MS SQL Server, MySql, SQLite, Apache UIMA.
    Featured Skill Java
    jQuery
    Spring Boot
  • $40 hourly
    • 4.9/5
    • (29 jobs)
    I am a software engineer working as a mobile developer for over 12 years. I am building the next generation of mobile applications, using leverages the latest technology practices to deliver high quality and cost-effective solutions. My academic background is M.Sc. of Software engineering. The best approach depends on your requirements. I would be happy to discuss your own business ideas and convert it to a unique application with awesome user experience. Thanks for reading my profile and if you need more details about me or my experience, please contact me.
    Featured Skill Java
    Software Development
    Kotlin
    Android
    Software Architecture & Design
    Google Play
    Android App Development
    Android Room Persistence
  • $70 hourly
    • 5.0/5
    • (6 jobs)
    About me -- Hardworking and agile developer/consultant specialized in Java general-purpose language. Working on mobile and web systems - building well-designed, scalable, and performance-optimized applications. I'm highly devoted to delivering clean, robust code and a seamless, pixel-perfect user-interface. Experience in banking domain, enterprise systems, CRM applications, as well as various lifestyle and entertainment apps. Able to provide top-notch outsourcing services, I'm delivering only production-grade products to the market. If you need a dependable one-man-army (full-stack) engineer, I'm available as a contractor, consultant, or PM/Team lead. I prefer working in a compact, cross-functional team, exploiting Agile/Scrum methodologies. Career-- Experience: 7+ years in the software industry Languages: Java, Python, Android, JavaScript, Angular, React, ReactNative, HTML5, CSS3, UI/UX Databases: SQLite, MySQL, PostgreSQL, Redis, MongoDB, Firebase DB, Casandra, Apache Solr ​Testing: Cucumber, Selenium, Mockito, JUnit, Integration, and e2e testing Web: REST/Web service development with OpenAPI (Swagger) Other: Experience with AWS, Docker, Kubernetes, Jenkins, Kafka, Zuul gateway, Git, Maven Development environments: Eclipse, IntelliJ, VSCode, Android Studio, Sublime Text, Vim If you need any further information, please don't hesitate to contact me. Kind regards, Radovan Ristovic
    Featured Skill Java
    Automated Testing
    RESTful Architecture
    Android
    Python
    User Experience
    User Interface Design
    Object-Oriented Programming
    Spring Framework
    AngularJS
  • $20 hourly
    • 5.0/5
    • (4 jobs)
    🚀 As a seasoned Android Developer with over five years of dedicated experience, I specialize in transforming innovative ideas into high-performance, user-friendly mobile applications. My expertise lies in crafting scalable solutions with clean, maintainable code, ensuring your project not only meets but exceeds expectations. Technical Proficiencies: ⚬ Kotlin, Java, Python, C# ⚬ Jetpack Compose, Android SDK, Firebase, GraphQL, Material UI ⚬ Modern architectural patterns (MVVM, Clean Architecture), CI/CD, Gradle, GitHub ⚬ REST APIs, third-party services, real-time data handling 💬 Clear communication is essential in my workflow. I will provide regular updates and engage proactively throughout the project, creating a collaborative atmosphere where ideas thrive and solutions are tailored to your needs. 🤝 Let's collaborate to bring your vision to life with cutting-edge Android applications that stand out in today's competitive market!
    Featured Skill Java
    C#
    Kotlin
    Python
    Android
    Smartphone
    Android App Development
    Mobile App Development
    Firebase
    Native App Development
  • $18 hourly
    • 4.9/5
    • (15 jobs)
    Hey there! I'm Luka, a 22-year-old Social Media Manager and Marketing whiz from Serbia. I'm working as a Social Media Manager in a SMMA - InstaBay. I have a lot of experience with managing Instagram theme pages in all niches, as well as social media accounts for small businesses and individuals! I'm also experienced with recognising new trends and always improving posting strategies, so I'm always on top of my game! Join me in exploring the exciting realm of social media, let's make some digital magic together!
    Featured Skill Java
    HTML
    Django
    CSS
    Web Scraping
    Python
    Web Application
    JavaScript
    Vue.js
  • $30 hourly
    • 5.0/5
    • (8 jobs)
    Being an experienced developer in C# and Lua, with working knowledge in C++, C, JS, Java as well as arduino development, mainly in Unity and Roblox, I can ensure to bring the best results to any new or ongoing projects that my clients may request of me. I Also have working experience in 3D modeling and animation, using Maya, Blender and Fusion360, which I consider are valuable skills to have, if not for development, then for team cohesion and workflow. At the moment, I am seeking an organization or company that places high value on innovation and creativity, that would provide me with opportunities to grow both professionally and personally. I am eager to apply my expertise in game development, programming, 3D modeling, and animation to contribute to our mutual success. My aim is to enhance my problem-solving skills and collaborative abilities while also enjoying my work.
    Featured Skill Java
    Mobile Game Development
    3D Modeling
    Game Development
    Autodesk Maya
    3D Animation
    3D Design
    Game
    Video Game
    Roblox Studio
    C#
    Lua
    Unreal Engine
    Unity
  • $5 hourly
    • 5.0/5
    • (4 jobs)
    I am a developer with little experience in coding and QA testing and I would love an opportunity to learn and grow. • I have basic knowledge of HTML, CSS and JavaScript • I have basic knowledge of QA manual testing and automation testing using Selenium with Java
    Featured Skill Java
    Data Entry
    SEO Audit
    SEO Keyword Research
    Content Writing
    Manual Testing
    Selenium
    TestNG
    CSS
    HTML
    JavaScript
  • $7 hourly
    • 5.0/5
    • (1 job)
    I’m a game developer experienced with Unity 2d and 3d environment. I can adapt in exiting projects, fixing bugs, adding new features or develop mobile game from scratch. Knows C#, Java, LINQ, MySQL, JSON Have experience with Multiplayer services like Netcode and Photon Pun2
    Featured Skill Java
    MySQL
    Windows Forms
    Game Development
    C#
    Video Game
    Unity
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    am a software developer with more than 10 years of experience in Java. My favorite tech stack is Java and the Spring Framework.
    Featured Skill Java
    Web Application
    Spring Framework
    Spring Boot
  • $25 hourly
    • 4.2/5
    • (3 jobs)
    Engineer with over 7 years of experience in working with different programming concepts, application architecture and infrastructure, hardware and firmware development and software security.
    Featured Skill Java
    Embedded C
    C
    Node.js
    C#
    C++
    SQL
    MySQL
    MongoDB
    Angular
    TypeScript
    JavaScript
    React
    Python
  • $10 hourly
    • 0.0/5
    • (1 job)
    Hello, I'm a university student in my final year of studies for a Computer Science degree, aspiring to become a software developer. I want to build web applications for small businesses or for a specific client. If you're in a need of a well-built, functioning web page to ensure your business' exposure to the world, you're in the right place!
    Featured Skill Java
    MongoDB
    Neo4j
    Redis
    Unity
    Python
    SQL
    TypeScript
    Next.js
    React
    JavaScript
    C#
    C++
    C
    Software Development
  • $39 hourly
    • 0.0/5
    • (0 jobs)
    I am graduated Software developer experienced in managing websites, with strong skills in front-end development and web design. I also have expertise in designing, developing, and maintaining databases. * Knows HTML,CSS3,PHP,Wordpress,Java,Java Script,Figma,MySQL.... *Regular communication is important to me,so let's keep in touch.
    Featured Skill Java
    PHP
    CSS
    C#
    C++
    C
    MySQL
    SQL
    HTML
    Tableau
    Figma
    Video Editing
    JavaScript
    Database Management
    Database
  • $50 hourly
    • 0.0/5
    • (0 jobs)
    As a programmer with 12 years of experience, my journey began at a young age, fueled by a fascination with computers and the joy of creating my own programs. Over the years, I've taken on various roles - from hands-on coding to decision-making, team leadership, and organizing business processes. My primary focus has been backend development, where I've built a strong foundation in Java and related technologies early in my career. In recent years, I've shifted my focus to .NET, where I continue to push my technical boundaries. Challenges don't intimidate me; in fact, I thrive on them. I've successfully tackled projects that others avoided, and I find great satisfaction in delivering results in tough situations. Outside of work, I'm a dedicated father of two daughters and an enthusiast of nature and dogs. While my gaming days have passed, I still enjoy a good movie when time allows.
    Featured Skill Java
    Product Management
    MVC Framework
    Naive Bayes Classifier
    Microsoft SQL Server
    MySQL
    Software Design Pattern
    Elasticsearch
    Real Time Stream Processing
    Scrum
    Business Development
    FinTech
    Project Management
    Client Management
    C#
  • $10 hourly
    • 5.0/5
    • (1 job)
    I am an experienced QA engineer, in my career I've worked on more than 20 projects. Some of them were giant enterprise solutions, and some were smaller webshops. Majority of my projects were related to Fin-tech industry, but also there were some Healthcare solutions as well. I have experience with manual testing, automation, and a bit of DevOps as well. Regarding automation, I am expert in UI Automation testing, but I also have experience with API testing. Other than technical skills, I've been team lead and tech lead, and I do have strong organization skills. Overall, with my experience, I am confident that I will be able to tackle down any task in QA area of work.
    Featured Skill Java
    Retesting
    Cypress
    Automation
    Bug Reports
    QA Engineering
    C#
    JavaScript
    Testing
    Selenium WebDriver
    Jenkins
    API Testing
    Regression Testing
    Smoke Testing
    Performance Testing
  • $15 hourly
    • 0.0/5
    • (2 jobs)
    Hello! An honour to have you here. Welcome, the name is Katarina, a 21 - year old female artist from Serbia, at your service. Without further exaggeration i would like to get straight to the point and present the core of my most confident skills and talents that i posses and have been working on to improve over the years, here they are: *Clip Paint Studio PRO *Adobe Photoshop *Paint Tool Sai *Aseprite (pixel art) *Adobe Illustrator *TVPaint Animation 10 PRO To back up my claims, reference sites and porfolio's will be linked and created, so you can check them out.
    Featured Skill Java
    Game Design
    Clip Studio Paint
    2D Animation
    Video Game
    Pixel Art
    Fashion Design
    Illustration
    Game
    JavaFX
    Game Development
    Adobe Photoshop
    Autodesk Maya
    Unity
  • $13 hourly
    • 0.0/5
    • (0 jobs)
    I am a graduate Electrical and Computer Engineer specializing in Computer Science and Informatics, with a GPA of 9.52. Over the course of my academic and professional journey, I've had the opportunity to work with a diverse range of technologies and adapt to various development environments, enhancing my technical and collaborative skills. Currently, I am a Backend Developer at Vega IT, the largest IT company in Serbia, where I specialize in .NET and microservices architecture. In addition to my backend focus, I have experience with front-end development, specifically with Angular, which enables me to contribute to both server- and client-side aspects of projects.
    Featured Skill Java
    MySQL
    C++
    C
    TypeScript
    JavaScript
    NestJS
    Neo4j
    Angular
    Docker
    PostgreSQL
    MongoDB
    Apache Kafka
    Redis
    C#
  • $10 hourly
    • 0.0/5
    • (0 jobs)
    Hi! I’m a web app developer with experience in building both front-end and back-end applications. I focus on creating user-friendly, responsive web apps that are easy to navigate and perform well.
    Featured Skill Java
    Video Editing
    Microsoft Excel
    Windows Forms
    Data Entry
    React Native
    PostgreSQL
    SQL
    MongoDB
    .NET Framework
    Python
    JavaScript
    C#
    C++
    C
  • $10 hourly
    • 0.0/5
    • (0 jobs)
    I’m a developer experienced in building software solutions using various technologies. Whether it’s developing web applications, working with databases, implementing APIs, or sports analytics, I can assist you through every phase of the project. I’m skilled in Vue.js, Flask, JavaScript, Python, C, C#, .NET, and database management. I also have experience as a sports logger for event data analysis. Ready to work on different projects from start to finish.
    Featured Skill Java
    Serbian
    Testing
    Game Testing
    Voice Recording
    Virtual Assistance
    .NET Framework
    Health & Fitness
    Data Entry
    C#
    JavaScript
    Python
    Gaming
    Sports
    Web Development
  • $21 hourly
    • 0.0/5
    • (0 jobs)
    I’m a certified (Platform Developer I) Salesforce Developer and Architect with 5+ years of experience. I can help you build scalable, quality solutions and guide you in the Salesforce ecosystem. I think that communication is key, no matter how big or small the project is, so let’s keep in touch. Mainly I’ve done work in the Service and Sales cloud, but I’m not limited to them. I’m more than comfortable with: *LWC *Visualforce and Aura *Apex *SOQL and SOSL *SF Flows
    Featured Skill Java
    Problem Solving
    Salesforce Service Cloud
    Salesforce Lightning
    SOSL
    Software Architecture
    SOQL
    Visualforce
    CSS
    HTML
    JavaScript
    Apex
    Salesforce App Development
    Salesforce
  • $5 hourly
    • 0.0/5
    • (1 job)
    Skilled and experienced mobile app developer, proficient in Native Android (both Java and Kotlin), Native iOS (Swift) and crossplatform in Flutter. I have worked on many projects, ranging from updating legacy apps to newer technologies, creating full stack standalone applications and fixing bugs on existing projects. My services include connecting with existing or creating new database systems, secure user authentication, location services and many more! Contact me now and let me help you bring your ideas to reality.
    Featured Skill Java
    SwiftUI
    Mobile App
    App Development
    Flutter
    Kotlin
    Swift
    Android App Development
    Mobile App Development
    iOS
    Android
  • $12 hourly
    • 0.0/5
    • (0 jobs)
    im game developer with 3 years experience in making video games for pc and mobile. Im working in Unity and Unreal Engine 5
    Featured Skill Java
    Kotlin
    C#
    C++
    Unity
    Unreal Engine
  • 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 Nis, on Upwork?

You can hire a Java Developer near Nis, 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 Nis, 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 Nis, 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.