Hire the Best Java Developers in Delhi, IN

Senior Mobile App Developer | iOS, Android , React Native, Flutter | 10+ Years I help startups and companies build high-quality mobile applications for iOS and Android, from MVP to fully scalable production apps. With 10+ years of experience in mobile development, I have built and delivered applications used by thousands of users across different industries including enterprise, consumer apps, and real-time data platforms. I specialize in building reliable, scalable and high-performance mobile apps using modern mobile technologies. ✅ Top Rated Plus Freelancer ✅ 100% Job Success ✅ 10+ Years Mobile Development Experience What I can help you with • React Native cross-platform mobile apps • Native Android apps (Kotlin) • Native iOS apps (Swift) • MVP development for startups • Scaling existing mobile apps • Performance optimization and debugging • API integrations and backend connectivity • App Store & Play Store deployment Technical Expertise Mobile Development React Native Kotlin / Android SDK Swift / iOS SDK Flutter Backend & APIs REST APIs Firebase Node.js backend integration Third-party API integrations Advanced Mobile Features Maps & location services Real-time data & network communication Media processing (video/audio) Bluetooth / NFC / hardware integrations Sensors & activity recognition Third-Party Integrations Facebook Google APIs Amazon services Dropbox Twitter Instagram Types of Applications I Build • Consumer mobile apps • Enterprise mobility solutions • Real-time data applications • Location-based services • Hardware-integrated apps I focus on clean architecture, maintainable code, and long-term scalability. If you're looking for a reliable mobile developer who can take your idea from concept to production, feel free to send me a message or invite me to your project. I look forward to working with you.

I’m a Senior IAM Architect with 22+ years of experience helping organizations design, deploy, integrate, and modernize Identity & Access Management solutions for enterprise applications and cloud platforms. Identity & Access Management ● Single Sign-On (SSO) ● OAuth 2.0 & OpenID Connect (OIDC) ● SAML 2.0 ● Multi-Factor Authentication (MFA) ● Passwordless Authentication ● API Authentication & Authorization ● Identity Federation ● Multi-Tenant Identity Architecture Identity Platforms ● Keycloak ● Auth0 ● ForgeRock ● Microsoft Entra ID (Azure AD) ● Ping Identity ● OneLogin Consulting & Implementation Services ● Deployment and management of enterprise IAM platforms ● Custom IAM solution development ● Application integration using OAuth 2.0, OpenID Connect, SAML, and SCIM ● Single application authentication architecture ● Multi-tenant SaaS identity architecture ● B2B, B2C, and B2B2C identity solutions ● Customer Identity & Access Management (CIAM) ● API authentication and authorization ● Identity platform migration and modernization ● Security architecture reviews and IAM best practices ● Performance tuning, troubleshooting, and production support Backend & Cloud ● Java, Spring Boot & Spring Security ● REST APIs & Microservices ● Kubernetes, Docker & Nginx ● AWS, Google Cloud Platform (GCP), and DigitalOcean Whether you’re building authentication for a single application, scaling to a multi-tenant SaaS platform, implementing B2B, B2C, or B2B2C identity, integrating applications using industry standards, or modernizing an existing IAM solution, I can help you design and deliver a secure, scalable, and standards-compliant architecture.

Java Backend Developer | 8+ Years of Experience Crafting Reliable & Secure Web Applications Hi there! I'm a passionate Java developer with over eight years of experience building web applications that are not only functional but also secure, accessible, and efficient. I thrive on turning complex requirements into simple, robust solutions using the power of Java and its ecosystem of frameworks and tools. My Core Skills & Expertise: Java Technologies: From JSP and Servlets to Struts2 and Spring Framework (Spring Boot, Spring MVC, Spring Security), I've worked across the Java stack, bringing ideas to life in scalable, high-performing applications. Database Management: Experienced in RDBMS like MySQL, PostgreSQL, and Oracle, I focus on optimizing data interactions to ensure smooth, reliable performance. RESTful APIs: I design and implement REST APIs that are secure, efficient, and well-documented, making integration seamless for any frontend or third-party systems. Web Application Security: Security is at the core of my work. I’m familiar with OWASP standards and apply secure coding practices to protect applications from vulnerabilities. Web Accessibility: I believe in creating applications that everyone can use, adhering to WCAG standards for accessibility so all users have an inclusive experience. I’m dedicated to writing clean, maintainable code and take pride in my work. Whether collaborating in a team or working independently, I’m known for my attention to detail and commitment to delivering results that clients can rely on. If you're looking for a developer who will treat your project like their own, let’s chat about how I can help bring your vision to life.

Professional Summary * Experienced Java Developer with 3.5 years of experience in backend development, specializing in Java, Spring Framework, Hibernate, and MongoDB for building scalable, high-performance applications. * Proficient in Microservices Architecture design and implementation, enhancing modularity, fault tolerance, and scalability, while integrating secure OAuth 2.0-based SSO and user authentication. * Strong Collaboration and Mentorship Skills demonstrated through cross-functional teamwork, code reviews, and guiding junior developers to ensure high-quality deliverables. * Skilled in Full-Stack Development with expertise in dynamic web pages (JSP, HTML, CSS, Bootstrap) and developing robust features like issue tracking systems, calendar automation, and data validation for diverse applications.

I have been working as a Java developer for 6 years. As I am new to Upwork, completing jobs according to the client's requirements is not only my duty but it is my necessity. Client satisfaction will be my first preference. It's important to me to build long term relationships with clients, so I'm primarily looking for long term projects. I'm flexible with my working hours and am happy to work closely with any existing freelancers you work with. I have 6+ years of experience in Web application development, Trading Platforms, Web Scraping, Microservice architecture, and Scripting. Worked on E-commerce apps, GPS Monitoring Servers, Experience on OAuth2, Facebook, Google, Twitter, Google Maps integration and Spring Security. Please connect with us for a safe business and for better product delivery on time. Instead of making false promises or writing big slogans let's start work.

Hi there! I'm a full stack developer with over 10 years of experience in building highly scalable web applications, I have expertise in: Java, Spring boot, Spring MVC, Spring DATA, spring cloud, Hibernate JPA, Spring Security, Oauth2, JWT, Rest APIs, Microservices, Swagger, Grails, Groovy, Junit, Mockito, Spock, etc. JavaScript, React, Node, Jquery, Vue.js, Handlebars, HTML, CSS, JSON, XML, Chrome Extensions, Google App Scripts, Google Sheets, Google Automation MySQL, PostgreSQL, MongoDB Gradle, Maven, Bash, zsh AWS infra, EC2, SNS, SQS, RDS, S3, Lambda, etc Redis, RabbitMQ, Kafka Git, Jenkins, Docker, Kubernetes, etc Experience and Expertise in managing projects, teams and applications from conception to production, including functional and technical requirements, development, testing, and documentation. My Gold Services: - Scalable solutions with optimum quality - 24/7 communication with the client - Pay when satisfying Let's build a futuristic project! I’m eager to start working with you! Let's chat!