JUnit Developers For Hire
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Hire liveinulancing
Senior Full-Stack Engineer | Java, Spring Boot, Angular, Cloud (GCP/AWS) | WebRTC | 8+ Years Experience I am a Senior Full-Stack Developer with over 8 years of experience designing and delivering production-grade software for enterprise and startup environments. I specialize in building scalable, secure, and...Senior Full-Stack Engineer | Java, Spring Boot, Angular, Cloud (GCP/AWS) | WebRTC | 8+ Years Experience I am a Senior Full-Stack Developer with over 8 years of experience designing and delivering production-grade software for enterprise and startup environments. I specialize in building scalable, secure, and high-performance systems using Java (8–17), Spring Boot microservices, Angular, REST APIs, Cloud platforms (GCP/AWS)—and real-time communication systems using WebRTC. My background spans fintech, healthcare, telecom, e-commerce, and government projects, where I’ve handled everything from greenfield architecture to refactoring legacy systems and scaling platforms used by thousands of users. Real-Time & Event-Driven Systems In addition to traditional enterprise systems, I work with WebRTC-based real-time solutions: WebRTC: One-to-one and group video/audio calling, screen sharing, low-latency streaming, signaling servers, secure real-time architectures Kafka: High-throughput event pipelines, asynchronous microservice communication, stream processing, audit/event sourcing patterns, and fault-tolerant data flows - One-to-one and group video/audio calling - Screen sharing and low-latency streaming -Signaling servers and backend integration -Secure, scalable real-time architectures -WebRTC integrated with modern web apps and cloud backends -This makes me well-suited for products involving: -Video conferencing -Live collaboration tools -Telehealth platforms -EdTech / remote learning -Real-time dashboards and streaming workflows What I deliver: -Clean, maintainable, production-ready code -Scalable microservice architectures -Secure applications (JWT, OAuth2, role-based access) -Cloud-native solutions on GCP & AWS -Real-time systems using WebRTC -End-to-end development: backend → frontend → deployment -Clear communication and predictable delivery -Core Skills -Backend: Java, Spring Boot, Spring Security, Microservices, REST APIs -Frontend: Angular (2–12), HTML, CSS, TypeScript -Real-Time: WebRTC, signaling design, low-latency systems -Cloud & DevOps: GCP, AWS, Docker, Jenkins, CI/CD -Data: MySQL, PostgreSQL, Oracle, BigQuery, Kafka -Architecture: System design, performance optimization, API design I work with an ownership mindset—treating your product as if it were my own. Whether you need a real-time communication feature, a cloud-native backend, or a full-stack platform built from scratch, I focus on long-term quality and business impact, not just “getting it done.” If you are looking for a reliable senior engineer who can think in systems, communicate clearly, and deliver production-grade results, I’m ready to help you build. less -
Hire JustinJcob
im available 18 hours a day and have response rate 30 minutes average If I have the skills and availability to work on your project, solve your problem, and deliver the result you need — why should I miss the opportunity? I believe in proving the quality of my work first. My priority is your satisfaction, and I...im available 18 hours a day and have response rate 30 minutes average If I have the skills and availability to work on your project, solve your problem, and deliver the result you need — why should I miss the opportunity? I believe in proving the quality of my work first. My priority is your satisfaction, and I focus on delivering work that is professional, reliable, and worth your investment. Have a project in mind? Message me right now — I’m ready to discuss it. ------------------------------------------- PROFESSIONAL OVERVIEW ------------------------------------------- My goal is to reduce human effort and optimize business processes using advanced technology, specifically Artificial Intelligence and robust automation strategies. I specialize in bridging the gap between traditional web development and cutting-edge LLM integration. ------------------------------------------- SERVICES I OFFER ------------------------------------------- -- AI & NLP Integration: integrating OpenAI (GPT), Gemini, and Claude into applications. -- Full-Stack Web Development: Building scalable web apps using Python and Java frameworks. -- Chatbot Development: Creating intelligent conversational agents for customer support or creative tasks. -- Automation & Data: Web scraping and workflow automation scripts. -- Desktop Application Development: Building standalone software solutions. -- Mobile app design & development (Android, iOS, hybrid) -- DevOps and Cloud Deployment -- Data Cleaning & Transformation -- Data Analysis & Interpretation -- Logo Design & Brand Identity -- Flyers, Posters & Brochures -- Social Media Graphics -- Business Cards & Stationery -- VIDEO EDITING & MOTION CONTENT ------------------------------------------- DELIVERABLES & OUTPUT ------------------------------------------- -- Custom AI Chatbots (Customer Service, Personal Assistants) -- RAG (Retrieval-Augmented Generation) Systems for knowledge bases -- AI Song Writers & Creative Content Generators -- Responsive Websites & Web Applications -- RESTful APIs & Backend Architecture -- Data Scraping Scripts & Cleaned Datasets -- Java/Python-based Desktop Applications ------------------------------------------- TOOLS & TECHNOLOGIES ------------------------------------------- -- AI/LLM: OpenAI API, Google Gemini, Claude, LangChain, NLP libraries. -- Languages: Python, Java, JavaScript, SQL. -- Frameworks: Django, Flask, Spring Boot, React.js. -- Tools: Maven, Git, Selenium/BeautifulSoup (for scraping). -- Creative & Design ( Adobe Photoshop Illustrator,Blender,-AutoCAD,Affinity) ------------------------------------------- COMMUNICATION ------------------------------------------- I pride myself on clear, concise communication in English, ensuring that project requirements are understood immediately. less -
Hire humakiai
Humaki builds production software: web apps, AI features, APIs, and automation. We take a scoped brief, ship working code, and deliver through GitHub.Humaki builds production software: web apps, AI features, APIs, and automation. We take a scoped brief, ship working code, and deliver through GitHub. less -
Hire sonalkashyap1405
sonalkashyap1405 sonalkashyap1405
$12 USD / hour
Software Testing | SaaS | Security & ComplianceIndiaWe are Software Company with more than 15+ years of experience with various tools and skill set around globe. We have a skilled team who can help you gain the quality you have been looking for. We can help in creating end to end user experience. As the creator of the "Quality Health Meter" along with the development...We are Software Company with more than 15+ years of experience with various tools and skill set around globe. We have a skilled team who can help you gain the quality you have been looking for. We can help in creating end to end user experience. As the creator of the "Quality Health Meter" along with the development and testing of other promising websites we have also developed a tool to scan websites for critical functional, performance, and security vulnerabilities to improve overall quality. less -
Hire winmaclin
⭐ Top 2% on Freelancer.com | Narola Infotech - Digitalising Businesses Since 2005 ✎ About Us We are Narola Infotech, a globally recognized IT solutions company with 20+ years of experience delivering high-performance web, mobile, and enterprise software solutions to 1500+ happy clients across 50+ countries. Trusted...⭐ Top 2% on Freelancer.com | Narola Infotech - Digitalising Businesses Since 2005 ✎ About Us We are Narola Infotech, a globally recognized IT solutions company with 20+ years of experience delivering high-performance web, mobile, and enterprise software solutions to 1500+ happy clients across 50+ countries. Trusted by Fortune companies like CGI, L&T, Infosys, Biocon, and TVSNext. We don't just build software, we build lasting partnerships. Our approach is simple: understand your vision, deliver beyond expectations, and stay with you every step of the way. ✎ Why Choose Us? ➬ 20+ Years of Industry Experience ➬ 350+ Talented IT Professionals ➬ 3000+ Successfully Delivered Projects ➬ 95% Client Retention Ratio ➬ 4.9 ⭐ Clutch Rating ➬ 100% Project Success Ratio ➬ Clutch Top 1000 Companies Global 2022 ➬ Best Outsourcing Company - SGCCI ✎ Our Services ➬ Custom Web & Mobile App Development ➬ Custom Enterprise Software Development ➬ AI/ML & Data Analytics Solutions ➬ QA & Software Testing (Automation, Security, Performance) ➬ DevOps, Cloud Migration & Managed Services ➬ Salesforce Consulting, Implementation & Support ➬ Staff Augmentation - Dedicated Teams or Individual Developers ➬ Support & Maintenance ✎ Tech Stack ➬ Frontend: ReactJS, AngularJS, VueJS, NextJS, NuxtJS ➬ Backend: Node.js, Java, PHP, Laravel, .NET, Python, Django, WordPress ➬ Mobile: Flutter, React Native, iOS (Swift), Android (Java/Kotlin) ➬ Cloud & DevOps: AWS, Azure, Docker, Kubernetes, Jenkins, CI/CD, Terraform ➬ Database: MySQL, MongoDB, PostgreSQL, Firebase, MS-SQL ➬ Other: Salesforce, MS Dynamics 365, Power Platform, Big Data, AI/ML, Automation ✎ Industries We Serve ● Fintech ● Healthcare ● Retail & Ecommerce ● Education ● Real Estate ● Media & Entertainment ●Transport & Logistics ✎ Our Strengths ➬ Agile Development Methodology ➬ Daily & Weekly Progress Reports ➬ Clear Communication & Collaboration ➬ 100% Plagiarism-Free & Secure Delivery ➬ Guaranteed Data Privacy & NDA Protection ➬ Flexible Engagement Models: ● Fixed Cost ● Time & Material (Hourly) ● Dedicated Team ● Hybrid Model (Fixed + Hourly) ✎ Our Promise "You will get the value of every penny you spend. We are committed to driving your business forward with reliable, quality solutions powered by technology and innovation." - Ashish Narola, CEO less -
Hire ankitsharma581
5+ years experienced software engineer with a demonstrated history of working in the computer software industry. Working as Senior backend developer managing small team, took care of complete roll out of the modules that i own which includes requirement finalisation, effort estimation, task assignment , code reviews...5+ years experienced software engineer with a demonstrated history of working in the computer software industry. Working as Senior backend developer managing small team, took care of complete roll out of the modules that i own which includes requirement finalisation, effort estimation, task assignment , code reviews , production roll outs and managing infra. Have been the rewarded by the company many times. less -
Hire albercuenca5
albercuenca5 albercuenca5
$30 USD / hour
Software Engineer |Java |Spring boot |aws |dockerMozambiqueSoftware Engineer specializing in Java and backend development, focused on designing and delivering scalable, secure, and high-performance systems. I work extensively with Spring Boot, Spring Data JPA, Hibernate, and RESTful architectures to build reliable and maintainable backend platforms. My experience includes...Software Engineer specializing in Java and backend development, focused on designing and delivering scalable, secure, and high-performance systems. I work extensively with Spring Boot, Spring Data JPA, Hibernate, and RESTful architectures to build reliable and maintainable backend platforms. My experience includes working with distributed systems, leveraging Kafka, Redis, and Docker to create robust, fault-tolerant solutions. I also integrate cloud-ready patterns and AWS services to support efficient deployments and production-grade environments. I apply Clean Architecture, domain-driven principles, and strong engineering practices to ensure code quality, extensibility, and long-term maintainability. I’m skilled at diagnosing complex issues, optimizing performance, and elevating the reliability of backend systems. I’m driven by building high-quality products, improving developer experience, and contributing to architectures that scale intelligently and sustainably. ⚙️ Technical Abilities - Java (8–21+) - Spring Boot / Spring Web / Spring Data JPA - Hibernate - JUnit / Mockito - RESTful API design & documentation - PostgreSQL / MySQL - MongoDB - Redis (caching, rate limiting, session management) - Kafka (event-driven architectures) - Docker / Docker Compose - AWS (Lambda, API Gateway, ECS, S3) - CI/CD pipelines - Clean Architecture & SOLID principles - Git & GitHub 🛠️ Tools - IntelliJ IDEA - Maven / Gradle - Git & GitHub - Swagger / OpenAPI - Postman / Insomnia - Jenkins / GitHub Actions 🧩 Personal Qualities - Fast learner and highly adaptable - Strong analytical and problem-solving skills - Organized and detail-oriented - Effective communicator - Passionate about improving user experience - Open to giving and receiving constructive feedback - Committed to writing clean, testable, and reliable code less
