Top 50+ Java companies

We are a full-stack web and mobile development agency delivering modern, high-performance digital products. Our team specializes in React and Node.js for scalable web platforms, and Flutter, Kotlin, and Java for reliable cross-platform and native Android apps. We combine strong engineering, clean UI implementation, and efficient project execution to help businesses launch, grow, and innovate through technology.

Provyra Solutions Pvt Ltd is a specialized Identity & Access Management (IAM) consulting and automation company helping global organizations secure identities, simplify access, and modernize authentication. We bring 13+ years of professional IAM expertise through our team, delivering end-to-end solutions across: 🔐 Our Core Expertise Okta Workforce Identity & Customer Identity (CIAM) Auth0 Implementation & Migration SSO using SAML, OIDC & OAuth 2.0 MFA, Adaptive MFA, Risk-Based Authentication IAM Automation (Okta Workflows, APIs, CI/CD) Custom Identity Integrations (Apigee, Azure AD, API Gateways) User Migration from Legacy IDPs Identity Governance & Zero Trust Security ⭐ What Makes Provyra Different Team with multi-certified Okta & Auth0 specialists Enterprise-grade IAM architecture & delivery Experience across BFSI, Healthcare, Telecom, Retail & SaaS Fast and reliable implementation with a strong focus on security Flexible engagement: consulting, implementation, migration, automation 100% client satisfaction & long-term support Whether you need a new IAM setup, authentication modernization, a migration to Auth0, or automation to eliminate manual work — Provyra delivers secure and scalable solutions tailored to your business.

🏗️ 𝗞𝗘𝗬𝗦𝗧𝗢𝗡𝗘 𝗦𝗢𝗟𝗨𝗧𝗜𝗢𝗡𝗦 𝗘𝗻𝗴𝗶𝗻𝗲𝗲𝗿𝗶𝗻𝗴 𝗘𝘅𝗰𝗲𝗹𝗹𝗲𝗻𝗰𝗲 | 𝗠𝗲𝗮𝘀𝘂𝗿𝗮𝗯𝗹𝗲 𝗥𝗲𝘀𝘂𝗹𝘁𝘀 | 𝗭𝗲𝗿𝗼 𝗚𝘂𝗲𝘀𝘀𝘄𝗼𝗿𝗸 🛑 Stop hiring freelancers who experiment on your dime. Partner with a senior-led engineering agency that delivers. At Keystone Solutions, we don’t just "code." We build production-ready software with full accountability. We specialize in high-performance backend systems, cloud infrastructure, and modern web applications for startups and scaling enterprises. 🛠️ 𝗧𝗘𝗖𝗛𝗡𝗜𝗖𝗔𝗟 𝗖𝗔𝗣𝗔𝗕𝗜𝗟𝗜𝗧𝗜𝗘𝗦 ━━━━━━━━━━━━━━━ 𝗕𝗔𝗖𝗞𝗘𝗡𝗗 & 𝗔𝗥𝗖𝗛𝗜𝗧𝗘𝗖𝗧𝗨𝗥𝗘 🔹 Java & Spring Boot: High-concurrency microservices and robust API design. 🔹 Clean Architecture: Maintainable, enterprise-grade codebases built for the long term. 🔹 Secure APIs: RESTful design with Swagger/OpenAPI, OAuth2, and Keycloak integration. 𝗖𝗟𝗢𝗨𝗗 & 𝗜𝗡𝗙𝗥𝗔𝗦𝗧𝗥𝗨𝗖𝗧𝗨𝗥𝗘 🔹 DevOps & Operations: Terraform (IaC), Docker, and Kubernetes orchestration. 🔹 CI/CD Pipelines: Automated deployments via GitHub Actions and Jenkins. 🔹 Cloud Providers: Specialized expertise in OCI (Oracle Cloud) and Microsoft Azure. 𝗗𝗔𝗧𝗔 & 𝗙𝗥𝗢𝗡𝗧𝗘𝗡𝗗 🔹 Enterprise Databases: Expertise in Oracle, MySQL, and SQL Server optimization. 🔹 Modern Frontend: High-performance Angular and React applications with seamless UX. 💎 𝗧𝗛𝗘 𝗞𝗘𝗬𝗦𝗧𝗢𝗡𝗘 𝗔𝗗𝗩𝗔𝗡𝗧𝗔𝗚𝗘 ━━━━━━━━━━━━━━━━━━ ✅ 𝗦𝗘𝗡𝗜𝗢𝗥-𝗢𝗡𝗟𝗬 𝗧𝗔𝗟𝗘𝗡𝗧 No juniors. No "outsourcing roulette." You work directly with veteran experts who understand business logic. ✅ 𝗣𝗥𝗢𝗗𝗨𝗖𝗧𝗜𝗢𝗡-𝗙𝗜𝗥𝗦𝗧 𝗠𝗜𝗡𝗗𝗦𝗘𝗧 We build for security, monitoring, and scalability from the very first line of code. ✅ 𝗙𝗨𝗟𝗟 𝗧𝗥𝗔𝗡𝗦𝗣𝗔𝗥𝗘𝗡𝗖𝗬 Fixed pricing, clear documentation, and zero vendor lock-in. You own 100% of the intellectual property. 🤝 𝗢𝗨𝗥 𝟰-𝗦𝗧𝗘𝗣 𝗣𝗥𝗢𝗖𝗘𝗦𝗦 ━━━━━━━━━━━━━━━━━━━━━━ 𝟭. 𝗗𝗜𝗦𝗖𝗢𝗩𝗘𝗥𝗬: A deep dive into your project requirements, constraints, and business goals. 𝟮. 𝗧𝗛𝗘 𝗕𝗟𝗨𝗘𝗣𝗥𝗜𝗡𝗧: A comprehensive proposal with a fixed scope and realistic timeline. 𝟯. 𝗘𝗫𝗘𝗖𝗨𝗧𝗜𝗢𝗡: Development driven by bi-weekly demos and transparent staging environments. 𝟰. 𝗛𝗔𝗡𝗗𝗢𝗩𝗘𝗥: Delivery of clean code, full technical documentation, and post-launch support. 🚀 𝗡𝗼 𝘀𝘂𝗿𝗽𝗿𝗶𝘀𝗲𝘀. 𝗡𝗼 𝗲𝘅𝗰𝘂𝘀𝗲𝘀. 𝗪𝗲 𝘀𝗵𝗶𝗽. 📩 𝗟𝗘𝗧’𝗦 𝗗𝗜𝗦𝗖𝗨𝗦𝗦 𝗬𝗢𝗨𝗥 𝗣𝗥𝗢𝗝𝗘𝗖𝗧 If you want a team that understands business constraints and delivers what was promised, send us a message. We respond within 24 hours with a clear action plan.

SGC Technology – Global Software Consulting, Development & Training Partner Creating a Better Future Through Innovation and Shared Expertise SGC Technology is a trusted global provider of Software Consulting, Custom Development, Product Engineering, System Integration, and Professional Training. For over 5 years, we have been helping enterprises, startups, and government organizations achieve digital excellence through quality-assured, ethically delivered, and value-driven IT solutions. Our mission is to empower businesses to innovate, scale, and optimize their operations through modern technologies, future-ready architectures, and expert engineering talent. What We Do 1️⃣ Custom Software Development We build secure, scalable, and high-performance applications tailored to our clients’ business needs, including: Web Applications Enterprise Applications Custom Portals & Dashboards End-to-End Product Engineering API Development & Integrations 2️⃣ Product Customization & Implementation We help organizations adapt and implement existing products or platforms by providing: Platform Setup & Configuration Feature Customization Module Development Workflow Automation Ongoing Support & Maintenance 3️⃣ System Integration Seamless integration of applications, systems, and data: Enterprise System Integration API Gateway / Microservices Integration Identity & Access Management Integration Legacy System Modernization 4️⃣ Consulting & Architecture Services Our experts guide clients from concept to execution: Business Process Analysis Technical Architecture & Solution Design Cloud Strategy & Migration DevOps Planning & Implementation Performance Optimization 5️⃣ Professional Training & Upskilling We offer practical, project-based training for corporate teams and individuals in: Liferay Keycloak Spring Boot & Java JBoss Angular & React Microservices & DevOps Our training programs help teams adopt new technologies and deliver projects faster. Why Clients Choose SGC Technology ✔ Transparent & Ethical Practices – We operate with complete honesty, accountability, and clarity. ✔ End-to-End Delivery – From requirements to deployment and training, we provide everything under one roof. ✔ Highly Skilled Engineers – Industry-certified experts with hands-on experience in enterprise projects. ✔ Cost-Effective Solutions – Quality engineering with optimal pricing. ✔ On-Time Delivery – Proven track record of delivering projects within timeline & budget. ✔ Strong Communication & Support – Proactive communication, continuous updates, and dedicated support.

At Icanio Technologies, we help businesses turn ideas into smart, scalable digital solutions. Our team brings together expertise in: 1)Web & Mobile Development – Modern, responsive apps built with React, Node, Flutter, and more. 2)Cloud & DevOps – Secure, optimized cloud setups across AWS, Azure, and GCP. 3)AI & Automation – Custom AI chatbots, workflow automations, and data-driven insights. 4)Portal & Enterprise Solutions – Liferay DXP, CRM, and ERP integrations for complex business needs. 5)UI/UX & Branding – Sleek, user-focused designs that elevate your digital identity. We blend technical precision with creative energy — helping startups move fast and enterprises scale smarter.

I am a Full-Stack Developer with 3+ years of experience specializing in React Native, React.js, and Java Spring Boot. I build scalable mobile and web applications with clean, reusable UI components and optimized API integrations. My backend expertise includes creating secure and efficient REST APIs using Spring Boot, Spring Security, JWT, and JPA/Hibernate. I have hands-on experience with multilingual support, native Android modules, file/image generation, and third-party integrations. I focus on writing quality code, improving performance, and delivering reliable end-to-end features through strong collaboration and problem-solving.

We are a specialized data engineering consulting agency focused on building scalable, automated, cloud-native data platforms. Our team includes AWS-certified data engineers with deep expertise across modern cloud and data engineering technologies. We help companies streamline data workflows, modernize legacy systems, and build reliable pipelines that support fast, accurate analytics. ⭐ Core Technologies & Expertise 🔹 Cloud Technologies AWS Azure GCP 🔹 ETL / Data Engineering Tools Airflow PySpark Microsoft Fabric AWS Glue Azure Data Factory Talend Alteryx Databricks 🔹 Databases / Data Warehouses Snowflake Redshift BigQuery MS SQL Server MySQL Oracle 🔹 BI / Data Analytics Power BI Tableau Looker Apache Superset Streamlit ⭐ How We Work Fast, high-quality delivery Clear communication Flexible engagement (hourly, part-time, or fixed scope) If you're looking for a specialized partner to build or modernize your data platform, Greenfield Analytics is ready to support your roadmap.

Softwere Engineer withl experience building Enterprise and Mobile applications. Proficient in full-stack development,particularly the Java and angular technologies

3FlowLabs is a specialized team focused on delivering fast, secure, and scalable digital solutions. We build, deploy, and maintain websites and applications using the latest technologies — WordPress, Laravel, Odoo, Docker, and VPS infrastructures. Our team handles everything from installation to optimization, ensuring smooth workflows, stable performance, and long-term reliability.

Mindscend is a software engineering agency specializing in cloud-native and scalable systems, with a strong focus on AWS-based backend and full stack development. We help startups and growing companies design and build reliable, maintainable products — from early MVPs to production systems — without unnecessary complexity or future rewrites. Our strength is architecture-first engineering. We focus on clean system design, performance, and long-term scalability, not just shipping features. Where we excel: Backend and full stack engineering AWS cloud and serverless architectures Scalable system design and APIs Cost-efficient, production-ready solutions Working closely with founders and product teams Clients choose Mindscend for clear communication, technical ownership, and practical decision-making. If you need a team that can build strong technical foundations and scale with your product, Mindscend is a reliable partner.

At Achillix Solutions 🔱, we specialize in building high-performance, scalable applications that transform ideas into reality. Our expertise spans the full technology stack, combining modern front-end frameworks with robust back-end architectures to deliver solutions that are both innovative and reliable. 💯 We leverage technologies including: ✅Front-End: Angular, Ionic, React Native, TypeScript, JavaScript ✅API & Data Management & CMS: Apollo, GraphQL, Rest, Hasura, PostgreSQL, MySQL, Redis, Sanity ✅Testing & QA: Playwright, Jasmin, Jest, Vite Unit/Integration/E2E testing ✅Back-End & Services: Node.js, Java, Python, Spring Boot, Hibernate ✅Infrastructure Awareness: AWS services for seamless deployment and scalability, Azure services for deployment Our team excels in designing real-time APIs, building complex microservices, and ensuring every component of an application integrates smoothly within large-scale enterprise environments. We take a detail-oriented approach, considering every dependency and interaction in the codebase to deliver robust and maintainable solutions. Driven by innovation and quality, we are committed to delivering projects on time and within budget, while pushing the boundaries of what modern web technologies can achieve. Whether it’s a revolutionary startup idea or enhancing enterprise systems, we are ready to bring your vision to life. 🚀

🍏 Who we are? Web Development & Design Agency. We use an understanding of business needs and best industry practices to solve complex issues 🍏 Whom do we work with? CongTing typically partners with EdTech and E-commerce businesses that want to create or improve underperforming platforms and establish or consolidate their position as market leaders. The main goal of creating any platform is simplicity for the user and efficiency for the business. 🍏 Why choose us? We make businesses more profitable by ensuring their users are happier and platforms efficient. We share our experience and the experience of our clients, which gives you a structured and clear formula that works 🍏 Our development team can help you better: • Understand best technology industry practices • Conduct SRO and SEO optimization of your platforms • Speed up the work of the site • Work out the correct page structure • Do it quickly and without headaches for you 🍏 Our UX design and team can help you better: • Reduce customer support budgets through easily understandable design • Engaging and delighting your users • Win the market through design • Aligning your internal teams • Prioritize for growth • Bringing efficiency to complex systems 🍏 Among the design needs we cover: • Digital Product Design • UX/UI Design • Design Process Consultancy • UX/UI Audit & Improvements • Market & User Research • Product Vision & Strategy Backend Development: Java (SpringBoot/MyBatis Plus/ShardingSphere), Python, SQL Frontend Development: Vue2/Vue3 (ElementUI/NaiveUI), uni-app, H5/JS Middleware: Redis/ActiveMQ/RabbitMQ, Elasticsearch, Netty/Vert.X Architecture Capabilities: High-concurrency architecture design, database sharding solutions, distributed system development, big data platform construction Specialized Fields: LLM private deployment, NLP application development, IoT system development Certifications: Developer certifications from UFIDA (a main-board listed software company) and Fanruan (a main-board listed software company) – FCA-FineReport, FCP-Report Delivery Engineer, UFIDA Visual Application Construction Intermediate Engineer Certification

StreamlineIdeas is a full-stack development agency specializing in scalable backend engineering and modern frontend development. We help startups and SMBs build end-to-end web applications, from clean UI to high-performance APIs and cloud-ready systems. Although new on Upwork, our expertise is backed by 6+ years of real-world experience at companies like Cloudera and DigiCert, where we built secure backend systems, microservices, data workflows, and enterprise-grade applications used globally. We combine the reliability of an engineering team with the speed, flexibility, and affordability of a boutique agency. 💼 What We Do 🔹 Backend Development (Core Expertise) Java, Spring Boot, Spring Data JPA, Spring Security Node.js, Express Microservices, Modular Architecture REST APIs, API Gateways Authentication (JWT, OAuth2) Integrations: payment gateways, third-party APIs 🔹 Frontend Development (Full Stack Delivery) React.js HTML5, CSS3, JavaScript Responsive, mobile-friendly UI Component-based architecture API integration with backend services 🔹 Database & Storage MySQL, PostgreSQL, MongoDB Schema design, normalization Query optimization & indexing Redis caching 🔹 DevOps & Cloud Deployment Docker, Kubernetes CI/CD (GitHub Actions, Jenkins, GitLab CI) AWS (EC2, S3, RDS, Lambda) 🔹 Architecture Consulting & Project Management System design for startups Migration from monolith to microservices Backend audits & performance reviews Agile delivery, sprint planning, documentation 🌟 Why Clients Work With Us ✔ Full Stack + Backend-Heavy Strength From UI to API to deployment — everything is built clean, scalable, and production-ready. ✔ Enterprise Development Experience Hands-on work at DigiCert and Cloudera, including: security-heavy systems, distributed architectures, high-performance search services, PDF signing APIs using PDFBox & Bouncy Castle. ✔ Perfect for SMBs & Startups We understand early-stage tech needs, limited budgets, and the need to ship fast without breaking scalability. ✔ Transparent Communication & Milestones Weekly updates, clean documentation, clear deliverables — no surprises. ✔ High Value, Low Overhead You get engineering quality without the big-agency pricing. 🛠️ Top Skills (SEO Rich) Java, Spring Boot, Microservices, REST APIs, Node.js, Express, React.js, HTML, CSS, JavaScript, PostgreSQL, MySQL, MongoDB, Docker, AWS, Kubernetes, CI/CD, System Architecture, Backend Optimization, API Integration, Full Stack Development. 📬 Let’s Build Something Great Whether you need: ✔a full-stack application, ✔a secure backend system, ✔API development, ✔database design, ✔cloud deployment, or architecture guidance… Streamline Ideas can help bring your idea to life — fast, clean, and scalable. Send us a message anytime — we’d love to collaborate.

Software Experts in the area of Embedded Software Design and functional testing , C, C++, C#, php, python, Visual Basic, Website design, customized application development, LAMP & SCILab, . Delivered software solutions consistent with the product road map.

We are a Full-Stack Development Agency specialized in building high-performance, secure, and scalable web applications. Our team brings end-to-end expertise in frontend, backend, databases, cloud deployment, APIs, and enterprise-grade architectures. We help startups, SMEs, and enterprises design, develop, and deploy modern web solutions using the latest technologies. ⭐ Why Choose Jambavan Software Systems? ✔️ Clean, maintainable, and scalable code ✔️ On-time delivery ✔️ Transparent communication ✔️ Free post-deployment support (15–30 days) ✔️ Secure backend architecture (Spring Boot best practices) ✔️ UI/UX that matches modern standards ✔️ We follow Agile + Test-Driven approach

Ace is a software house established in 2025, offering complete digital solutions across AI, machine learning, agentic AI, web and mobile development, UI/UX design, and backend systems. Our team builds intelligent, scalable, and beautifully designed software tailored to your needs — from advanced automation tools to full-stack web platforms. At Ace, we combine innovation with precision to turn ideas into impactful, future-ready products.

Vivid Soft is a software engineering agency specializing in custom product development, scalable backend systems, cloud-native architectures, and AI-powered solutions. We help startups and enterprises turn ideas into reliable, high-performance digital products built to scale. Founded and led by Senior Backend Engineer Mubeen Ali (9+ years of experience), Vivid Soft brings deep expertise in Java, Spring Boot, AWS, microservices, and modern AI integrations. Every project is engineered with enterprise-grade quality, clean architecture, and long-term maintainability in mind. WHAT WE DO • Custom Product Development (MVPs, SaaS platforms, backend systems) • AI and LLM-powered solutions (chatbots, automation, private model deployments) • System audit and performance optimization • AWS cloud architecture and cost optimization • CMS development (WordPress, Shopify, headless CMS) • Dedicated engineering experts (extend your team with senior engineers) WHY CLIENTS CHOOSE VIVID SOFT • Engineering-first approach • Enterprise delivery standards • Strong experience across multiple industries • Clear communication and predictable delivery • Scalable architectures and production-ready systems OUR EXPERIENCE • Healthcare platform modernization (microservices, performance 3x improvement, 35% AWS cost reduction) • Corporate payment engine for a ride-hailing platform • AI chatbot and forecasting POC for a multi-branch supermarket chain • Centralized logging and secret management system for a telecom provider • High-throughput SMS engine modernization for a global payments platform TECH EXPERTISE Java, Spring Boot, Python, Microservices, AWS, Docker, CI/CD, AI/LLM integrations, MySQL, Postgres, MairaDB, Informix, DynamoDB, Redis, REST APIs, HashiCorp Vault, SMPP, WordPress, Shopify LET’S BUILD WHAT’S NEXT Feel free to reach out — we’d be happy to discuss your project.

Sakshi Softech Pvt. Ltd. is a team of experienced Software Engineers and Full-Stack Developers specializing in web and desktop application development using Java (Spring Boot), .NET, Node.js, HTML, CSS, and JavaScript. We have delivered custom business applications, enterprise systems, and web portals for clients in banking, finance, and corporate sectors, ensuring performance, scalability, and data security. Our team also provides multilingual solutions for banks, enabling web pages, portals, and passbooks to be translated into multiple languages with accuracy and reliability. In addition, we develop PDF translation tools, helping organizations translate documents into multiple languages for improved accessibility and communication. Core Expertise: Java (Spring Boot), .NET, Node.js, HTML, CSS, JavaScript | MySQL, MongoDB, SQL Server | RESTful APIs, JSON, XML Integration At Sakshi Softech, we value transparency, collaboration, and quality delivery. Whether you need a custom enterprise platform, modernization of legacy software, or scalable multilingual systems, our team ensures your project is delivered with precision and excellence.

We are a team of Engineers specializing in 1. Frontend Development (React JS/ Next JS) 2. Backend Development (Java/ NodeJS - Express) 2. Mobile App Development (React Native)

We are an experienced team of software developers dedicated to building high-quality business software from the ground up. Our expertise spans Java, Spring, and Grails for robust backend systems, as well as native mobile apps for Android and iOS. Over the years, we’ve successfully delivered complex, mission-critical projects for clients across various industries — always with a focus on scalability, performance, and long-term value. Our Team Structure: Peter V. – CEO & Agency Owner Rasel M. – Lead Software Architect Asif T. – Senior Software Developer Mizanur R. – Mobile Developer (Android) Tanjim H. – Mobile Developer (iOS) MD. Sagir H. – Senior Frontend and UI/UX Designer