Top 50+ Java companies

TechCells is a high-end custom software development and team augmentation company with 5 years of experience. We focus on delivering custom made solutions for SaaS companies looking to gain traction in their market through our cutting-edge knowledge. Our headquarters is located in Chicago, US - with several developmen centers worldwide. With TechCells, you pay only for the value you receive. We guarantee delivery! Here's some feedback from our clients: 💬 "TechCells is an excellent company to work with. I highly recommend entrusting your work to them; they'll never disappoint. Cheers!" 💬 "This was my second time collaborating with TechCells on a substantial project from start to finish. They delivered another stunning website, surpassing the previous one which I was already thrilled with. The team went above and beyond, even when the scope expanded and unforeseen challenges arose." 💬 "Zafar and his team are perhaps my best hires on UPWORK, if not the very best. The communication was stellar, and they delivered ahead of the promised timeline, allowing us room for edits. They were receptive to feedback and ideas, yet they also had a distinct vision, resulting in a crisp, clean, and modern-looking website, a vast improvement over my previous one." We specialize in: ✔️ Augmenting your tech team with senior engineers ✔️ Dedicated startup app development teams ✔️ Web and Mobile applications ✔️ Cloud infrastructure ✔️ Enterprise applications ✔️ Major refactoring projects ✔️ Process automation ✔️ E-commerce solutions ✔️ UI/UX ✔️ Continuous engineering solutions (CI, CD, CT) ✔️ Test automation With nearly 100 English-speaking professionals on board, we consistently deliver, thanks to our transparent and sustainable approach. We simplify the software development process for our clients, enabling them to focus on the rapid growth of their business.

More than 15 years in Computer Science field with 10+ years system and application development experience, 2+ years HPC development experience and 2+ years data science experience. Master Degree in Computer Science with concentration in Computer Systems and Applications. Skilled in: -Fields: Linux Kernel, Linux Driver, CentOS/Ubuntu Administrator, Windows Application, Algorithm Design -Programming Languages: Python, C/C++, C#, Perl, R, Ruby, Java, PHP, Javascript, Html, CSS, Bash Language, Windows PowerShell -Databases: SQLite, MySQL, PostgreSQL, MS SQL -Web: Django, Flask, Ruby On Rail, Wordpress, Bootstrap, AngularJS, Vue.js, React.js, Node.js -Data Analysis: Numpy, Pandas, Matplotlib, Scipy -Machine Learning: Scikit-Learn, Tensorflow, Neural network Expected API, API Integration, Desktop Applications, Web Application, Web/graphic Design, Wordpress Plugin and UI/UX Prototyping as deliverables. Worked as a Staff Project/Program Manager in a well-known US company Seagate and developed Drive CTP(common test platform), CSP(common software platform), SAT(standalone test platform and STP(SSD test platform). Also worked for many other industries and developed enterprise level software applications like -Web Applications for medical institution -Ubuntu Administrator and Bash Script development for HPC -Image Preprocessing and 2D/3D Refinement System for Cryo-EM -Time & Attendance System for financial corporation -Social Media Optimization for sales and marketing department As a agency, I'm flexible with my working hours and I always work like a friend with my clients. My personal goal is to complete every task before deadline with my client’s all needs met and full satisfaction achieved. It will be a great pleasure for me to work with you and I’m looking forward to sharing my passion and knowledge all about computer science with you!

At BlauIT we stand for excellent customer experience as well as quality in everything we do. We are a team of passionate and dedicated experts that empower our customers to focus on their core business while we offer our expertise to support, develop, test and manage their infrastructure and IT products. As technology evolves fast we do to. We like to keep the pace with the latest technologies in order to fit our customer’s needs. We think that communication is the key which enables perfect customer experience so our services are provided in multiple languages in order to ensure a perfect collaboration with our customers By following our primary values: excellence, talent, belief, flexibility and loyalty we ensure a perfect collaboration based on trust and respect. Here at BlauIT we find that simplicity and quality go hand in hand and we like to keep it simple by solving issues and consulting in an elegant manner so that our customers understand the provided solutions and are able to implement them without any additional headaches. Industry: Computer Software Agency size: 11-50 employees Headquarters: Timisoara, Timis Type: Privately Held Founded: 2016 Specialties: IT Outsourcing, Software Development, IT Consulting, Digital Performance, Software Testing, and BPO

Deveem team provides you software development focused on your success. We can help you bring your digital product to life to scale up your real business. What we do best: ✅ Mobile Development • Native iOS (Swift) • Native Android (Java/Kotlin) • Hybrid apps (Flutter) ✅ DevOps AWS | Linux | Nginx | Docker | KVM | CI/CD FluxCD | Terraform | Kunernetes | Prometheus Ansible | Vagrant | Jenkins | Travis | Appveoyr Shell scripting | Grafana | Linux Administration EFK Stack | MySQL | PostgreSQL ✅ UI/UX Design • Mobile design • Web design • SaaS product design • Dashboard design ✅ IT Consulting • Strategy Planning • Business Analysis • Building a DEV team • Tech documentations 🥇 Why Us? • 84% long-term clients (*Upwork stats) • 93% of our clients would recommend us (*Upwork stats) • Working with startups from Silicon Valley • Post-launch technical support • No hidden junior policy • Deliver 101% results with Agile methodology • Great at remote work with different time zones • Products are featured in Apple App Store and Google Play • Complete transparency at every stage of the process What our clients say about us? ⭐️ "Absolutely incredible team to work with" ⭐️ "They’re a very talented developers. It's rare to find an experienced developer who is good at design. I enjoyed working with agency’s developer and I highly recommend him as well as Deveem Soft. If you care about details, Deveem Soft is the one to hire for your Android projects." ⭐️ "Job done great! Even additional work was added that were not discussed in the terms of reference" Our Tech Expertise: 🛸 Backend: Python/Django, Lavarel, Symfony, .NET Core, MySQL 🛸 Frontend: HTML5, CSS3, JavaScript, JQuery, Angular, React 🛸 Mobile Development: Kotlin, Java, Swift, Flutter/Dart 🛸 UI/UX: Figma, Adobe Photoshop, Illustrator We are ready to help. Tell us about your needs, we will answer within an hour.

REDNAVIS is an up-and-coming, talented and highly motivated team of professionals, who works all across the globe in different time zones. Our team members works from Georgia and Poland locations. We do not hire contractors from Russia and do not work with customers from Russia. REDNAVIS team can offer full-cycle software development services specializing in Web, Mobile application development, QA and UI/UX design. Our services: • Software Development (Java, JavaScript, Oracle, NodeJS, React Native, etc.) • Web Development • Mobile Development • Networking, Internet & Cloud Services • Database (MySQL, MongoDB) • QA • Software development consulting During the past years, we have established a reputation of a reliable software development partner through successful cooperation on different projects like: - NomisSolutions (USA) made it possible to work with their own app for Banking, using modern technologies like Meteor, MongoDB, NodeJS. - Helmes (Audanet) (Estonia) - our team supported and developed the platform that accommodates the services of claims handling. We are really strong, experienced and innovative team!

APPTech Mobile Solutions Pvt. Ltd. is a Software Designing and development company offering Desktop, Website and Mobile App enterprise software development services globally. APPTech Mobile developers work across diverse industry domains worldwide from Logistic, eCommerce, healthcare, retail, energy & utilities, travel, transportation & hospitality. We offer software development and consultancy on wide range of latest technologies like JAVA, .NET, BigData, Azur, Hadoop, DevOps, Kotlin, SWIFT, Flutter, PHP, Laravel, CodeIgniter, Angular, Vuejs, Node.js, WordPress, Magento, Firebase, MySQL, JAVA, etc. Our clients hire dedicated team of developer and designer on monthly or yearly basis. APPTech Mobile Solutions provide top quality services for your business in developing mobile application, web application etc. We are team of Full Stack developers offering services to mid level agencies, Individuals, Start ups, and corporate business etc. Since last 8+ years and have developed software and applications for Industries like: E-commerce, Medical, Social, Auto, Logistic, Education, etc. Our team skills include: - Working and managing different development teams, coordinating with them on development and deliveries. - Committing the code remotely and merging, branching and releasing the customer builds. - Regular Skype meetings, proper and timely status update emails. - Scrum calls. - Weekly or bi-weekly sprint plans, and build releases. - Test build distribution via testflight. - Overlapping few or all working hours with the clients on located in different time zones. - Project development, management, planning, bug reporting and fixing. We believe that everyone deserves high quality services. For any type of customer we guarantee whatever they need: — For startups: speed, flexibility and ideas. — For intermediaries and marketing agencies: transparency, integration and reliability. — For established businesses outsourcing their IT: business values, risk sharing and integration into their processes. AppTech Mobile provide completed e-commerce website & apps development solutions with responsive design according your requirements. We have expertise with Magento, Opencart, Woo-commerce & More. With a large pool of expert developers and skillful teams available in-house and through our partner network we are flexible in team building in accordance to any current and expected project needs. At the same time we have a scalable organization ready to accommodate almost infinite amount of IT work.

Infiglobal is a Vancouver and US based Mobile and Website development company. We specialize in any kind of mobile apps and web apps. Our parent company is TrantorInc and we have built 100s of mobile and web apps so far. We specialize in Wordpress and PHP solutions. We are also the leaders in providing Web 2.0 compliant solutions. We are based in Vancouver, Canada and in the United States so we can communicate with you during your working hours on phone, chat, emails. We have our presence on Guru.com with 500K+ earnings and 100% 5* feedback.

Evernetica is a team of creative minds and tech savvy developers who enjoy building elegant solutions to complicated problems. We stick to a mobile-first approach and specialize in iOS, Android and Web development. With absolute hard work over the past years, we’ve earned the status of *TOP RATED* developers with a 100% Job Success Score, and dozens of successfully completed projects here on Upwork. We’re experienced in building custom software solutions from scratch, tailor-made according to our client’s requirements, and have a solid experience with diving into on-going legacy projects, so we are familiar with various aspects of both iOS and Android platforms. Our team uses best programming practices, coding guidelines and standards. As technology advances gradually and the programming landscape changes globally, in order to accommodate the world's growing technological needs, we constantly evaluate the latest trends in the development industry, and strive to constantly improve and upgrade our skills, providing our clients the most optimal development solutions - cost-wise and budget-wise. We're not a big agency, we’re just a group of mobile devs who have passion to deliver innovative and high-quality software solutions that add value to your business. We work with startups as well as established companies and provide flexible cooperation models for each client which can be either project-based outsourcing, a dedicated team, or outstaffing. Feel free to get in touch with us with your project idea, and we’ll see how we can be of assistance.

ZELIFCAM - CREATING SOFTWARE THAT WORKS FOR YOU At Zelifcam, we transform your ideas into intuitive, high-performing software solutions. Our team of US-based developers ensures seamless communication, eliminating cultural, language, and time zone barriers. We prioritize clarity, collaboration, and transparency at every step. WHAT WE OFFER 💡 Clear, Accessible Development: We keep the process straightforward—no unnecessary jargon 🇺🇸 US-Based Team: Enjoy direct communication and real-time collaboration with a team that understands your language and culture 🤝 Client-First Focus: We maintain open communication channels and grant you direct access to your project manager during business hours Whether you're building something entirely new or enhancing an existing product, our purpose is simple: to create software that meets your needs and resonates with your audience. Let's craft something remarkable—together!

With a collective experience exceeding 50,000 hours, NDATACONSULTING has been a pioneering force since 2012. Our extensive expertise spans diverse domains, including mobile development, big data science, data analytics, data engineering, IoT, prompt engineering, and custom enterprise development. When confronted with a business challenge or specific requirements, look no further. NDATACONSULTING stands as the ideal partner, offering a team of reliable and seasoned experts dedicated to the success of both you and your business. Beyond mere words, we invite you to experience our capabilities firsthand – try us, and discover a partnership that goes beyond expectations.

A company that meets to your needs.

Tectum Technologies Pvt. Ltd is a 7 year old organization committed to transform software driven business and solve problems of masses through innovative technology. Our group is a cause in the matter for the success of a number of leading brands in IT domain. Our Services: - Cyber Security - Penetration Testing - Mobile Apps Development using the technologies Android, IOS, React Native, Objective C, Sqlite, AngularJS, Ionic & JAVA. - Website Development using the technologies -> PHP, WordPress, Laravel, Magento & OsCommerce. -> Python, Django, Cesendra, MongoDB, AngularJS, node.js - Website Designing using the technologies HTML, CSS3, JavaScript, Bootstrap & JQuery. - Graphics Designing: Photoshop, CorelDraw, Illustrator, Aftereffect, Logo Designing, 2D/3D graphics designing, Mobile Screens Designing & Icon Designing. Please let we know if you have any project requirement, We are always available for you. We are joining Upwork with a mission to contribute globally with our IT & financial management abilities. We are committed towards the success of our clients. Looking forward to work with you. Regards

Empowering Digital Excellence Across Diverse Technologies and Platforms At Terasoft, we are your JavaScript experts, specializing in a wide array of toolchains and consultancy services to ensure a comprehensive approach that meets your project requirements. Our extensive expertise spans across various languages and technologies, showcasing our proficiency in: Languages: PHP, Python, JavaScript, TypeScript, Java, .NET Web Development: PHP Core, PHP Laravel, ASP.NET MVC, Web forms, Java Spring Boot, Django JavaScript Core, MEAN Stack (MongoDB, Express.js, Angular, Node.js), MERN Stack (MongoDB, Express.js, React, Node.js) Next.js, React, Redux, Redux Toolkit, Vue.js, CSS, jQuery, HTML Cloud Services: Amazon AWS (EC2, ECS, EKS, Beanstalk), DynamoDB, Lambda, SQS, SNS, S3, CloudWatch, CloudFront, Cloudformation Azure, Google Cloud Databases: MS SQL Server, MySQL, PostgreSQL, MongoDB, Pouch/CouchDB, SQLite, XML, JSON Agile E2E & Team Management: Our Terasoft team excels in managing the entire Agile development lifecycle. From User Stories and Backlog to Tech Planning, Sprint Planning, and Daily Scrum, we provide detailed insights through Burndown/Burnup Charts and Retrospective Notes. Tools: Jira, Unfuddle, Asana, Trello Containerization and Orchestration: Docker, Docker Compose, Kubernetes, AWS ECS, AWS EKS, Minikube, etc. Web Servers: Full command on Apache, Nginx, IIS Integrated Development Environments (IDEs): VS Code, Notepad++, IntelliJ IDEA, WebStorm, PyCharm, PHPStorm, Vim, Nano JavaScript Expertise: WebStorm, VS Code, Next.js, Webpack, Sequelize, Knex Miscellaneous Expertise: CI/CD, Jenkins, GitHub, GitHub Actions, Linux Chrome Extensions, CQRS/MVVM/MVC Patterns, Microservices, Serverless .NET Contrib, Code Obfuscation (Java, JavaScript), .NET/Java Decompilers Database Query Optimization, Electron, Database Partitioning/Index Optimization Beautiful Soup, Google Drive, Microsoft OneDrive, MS Office, Open Office Adobe XD, FFmpeg, Slack At Terasoft, we bring a wealth of experience and a commitment to delivering high-quality solutions for your web projects. Let us elevate your digital journey with our specialized skills and advanced technical capabilities in JavaScript and beyond.

5 STAR ELITE TEAM "Horion is perhaps the most professional freelancer I have ever worked with! They saved the day when another freelancer let me down. Absolutely 5 star for communication, understanding the task, expertise and friendliness. Can't thank you guys enough and I will 100% use you again. Great company!!" "Being a web application developer of 14 years myself, they went above and beyond what I would expect from most freelancers. Met W3C standards, used wordpress and programming best practices. Very intuitive by providing content to fill in the gaps of the initial mockup designs that impressed investors and a user interface that was easy for our less technically savvy editors to use without training. Additionally were very knowledgeable and willing to work with us on our demands and were able to work with our proprietary API framework. Unlike our previous experiences with other freelancers they were more than willing to clean up and resolve any issues we had, without complaining or trying to push it off on us ." Member since 2010 56 projects 5* Rating We are a delta team of software development. Our main competitive advantage is an end to end development capabilities. Our team of experts was carefully built throughout the years, hiring talent from banks and corporations, that wanted to have more impact and work on interesting projects. This unique team mindset dictates our decision making on the projects we select to work on. Our portfolio of services: - End to end development - UI/UX design - Growth development - Outsourcing - Support & maintenance - QA Our primary technology stack: </Front end> React </Back end> Java Spring Boot </Database> PostgreSQL Our areas of expertise: .Project planning - Google Design Sprints workshop, wireframing, prototyping, brief writing .Custom web-based platforms .Business process automation projects .Custom Javascript development .Custom React.js development .Custom 3D product e-commerce solutions powered by ShapeDiver .Custom Node.js development .Custom Wordpress development .Machine learning .Business intelligence .Cloud migration

We've decided to make our full time US based PHP web application development team available to the Upwork Community. Our team has over 15 years of experience. If you want Experts who can get it done right, fast, and by a team in the USA, Office Smith LLC is the right choice. The bulk of our business comes from local long term clients.

🥇 Top-Rated Experts Team 🥇 100% Job Success (Client Satisfaction Ratio) 🥇 8+ Years Of Experience 🥇 Fluent English Verified 🥇 High-Quality Work 🥇 Cost-Efficient Services 🥇 Long Term Working Relationship We are an organisation that specialises in: ➡️Software Development ➡️Outsourcing ➡️Out-staffing. Our Development office is in India, although we have Sales office in Singapore, Switzerland and USA. We employ skilled Front-End, Back-End, and Mobile Developers as well as UI/UX Designers, QAs, BA's and PMs on our own team. 🌟 OUR TECH STACK: 🔥 Mobile: iOS (Swift/SwiftUI, Objective C), Android (Kotlin, Java), Hybrid (React Native & Flutter) 🔥 Web: ReactJS, Tailwind CSS 🔥 Backend: Ruby on Rails, NodeJS 🔥 Databases: PostgreSQL, MySQL, MariaDB, MongoDB, Firebase 🔥 WordPress: Website, Plugin, Theme Development. WooCommerce, Elementor, Divi, ACF, CPT 🔥 AWS Architecture Specialist 🔥 UI/UX Tools: Figma, Sketch, Adobe Photoshop, Adobe Illustrator, InVision 🔥 QA & Testing: Selenium, Cucumber, TestNG, Junit, BDD 👉👉 NATIVE & HYBRID MOBILE APPS DEVELOPMENT: End to End Solution for high-quality Native & Hybrid Mobile Apps across various industry domains for instance: Print & Publishing, Dating and Social Media, Healthcare, Education, Utility Tools, Finance, Retail & E-commerce, Photo Editing, Camera & Photo Album, GPS based navigation, etc. 👉👉WEB DESIGN / WEB DEVELOPMENT: E-commerce websites (E-Shops, Catalogs, Shopping Carts, Auctions), sophisticated web site design, development &amp; maintenance, portals &amp; directories, corporate website designing, community websites, chat &amp; instant messaging systems, etc. 👉👉AI/ML Development – We develop highly scalable and cost-effective AI/ML solutions to help you accomplish the benefit of curtailed labor and infrastructure cost. Our technologies include TensorFlow, Caffe, Theano, Accord.Net, Apache Mahout, etc. 👉👉 Data Analytics – We transform technological innovations into business outcomes by delivering data management, business insights and analytical solutions under one umbrella. 👉👉IoT Solutions – We develop efficient and responsive IoT solutions to add an extra layer of security and convenience in everyone’s lives 💪💪 Hire us for a modest job so we can demonstrate the calibre, efficiency, and precision of our work. After you are completely happy, give us a chance to help you in the long run.

We are a team of highly proficient J2EE, Android, and iOS architects with MSc and PhD degrees. Being a Sun advantage partner and having vast experience in Java, Scala and JavaScript development we have a good track of projects completed on time and within budget. Our team is eager to work on challenging and exciting projects.

Weenggs Technology - A global leading IT Outsourcing company offers Mobile Applications Development, Web Applications Development, E-commerce Solution Development, CMS Websites, API Integration, Website Design and Development with a vision to fully satisfy our valuable clients. iPhone App Development: 9+ years of experienced (Obj-C and Swift) Android App Development: 8+ years of experienced (Java and Kotlin) Cross Platform: 2+ years of experienced on React Native and 2 year of experienced with FLUTTER Web Development: 10+ years of experienced with PHP, Laravel, Codignator and 4+ years of experienced with Node Js, Vue JS and 2 year of experienced with React JS Our domain expertise includes Real Estate management, Grocery Market, Social Media applications, Photo/Video Processing application, Client server applications, Finance solutions, Enterprise Resource Planning (ERP), Business Applications, Portal development etc.!!!

Your time, your budget and your business are what we care about. You send us your technical or business requirements - we will get the job done. A software project is always a matter of choice - technology, methodology, vendor and you can always rely on our advice and implementation.

Profile Type: Business Year Founded: 2009 Number of Employees: 1-3 Rongpencill is a professional design studio. We have over 3 years experience in prepress (DTP) services and in design field for various graphics. Our designs are professional and customized to your needs and style preferences. A picture is worth a thousand words, so please review our portfolio. If you have any questions or comments, please free feel to contact us by the Private Message Board. All review will be done in 24 hours. Main services that we provide is Graphic Design for wide range of press media materials and web/multimedia design. Creative solutions for your Magazines, Catalogs, Posters, Calendars, Flyers, Brochures, Tickets, Book covers... Complete Corporate Identity Design. For Design and Graphical solutions of your Books, Catalogs, Calendars or any other publication, in our Archive we have more then 200 high resolution/quality photographs and illustrations in wide range of categories. We are updating Archive literally every day. After Design is finished we are offering you following Pre-press services: PDF/PS files output, Ozolid or improof copies, imposition checking, Color proof copies, Film/Plates production, quality and color separation control. In cooperation with our Printing Houses/Partners we are offering you printing services according to your needs. Also we are producing frames and foundations for the billboards, posters and adverts, including delivery and installation. www.rongpencill.com