Welcome to my Upwork profile! My name is Sofiia and I'm a talented Java Developer with 2 years of experience. My expertise is Backend development. In the nearest future I see myself as a successful and professional Java developer, so I am ready to do everything to become who I want to be. Coder at heart, I'm sure, we're not wasting each other's time! Backend: Java Frontend: HTML, CSS –basic, JavaScript Frameworks: Spring Framework (SpringMVC, Spring Boot, Spring Data, Spring Security) ORM: Hibernate Testing: JUnit, Mockito, JMeter VCS: Git (GitHub) Relational databases: MySQL, PostgreSQL,MongoDB, SQLite Build automation tools: Maven, Gradle API documentation tools: Open API, Swagger Clouds: AWS IDE: IntelliJ IDEA, Android Studio Payments: Stripe Search: ElasticSearch Other: REST API, Design Patterns, Log4j , Lombok, Thymeleaf, Docker, Postman, Liquibase, Ajax, Google Vision API, Tesseract OCR, OpenCV, OpenCSV, Stanford Core NLP, Apache POI, Apache PDFbox, Apache Server, SonarLint. Feel free to text me back and we'll discuss everything!

Software Development Engineer Core Competencies: • RESTful API, Web Services, Microservices • Programming language (Java, Python) • Java frameworks (Spring, Spring Boot) • Messaging (Apache Kafka) • Big Data (Apache Spark, Apache Airflow, Sqoop, Presto/Trino) • DB (SQL, NoSQL) • CI/CD • Monitoring/Observability • Testing Strategy • AWS • Code Review • Interview

With a proven track record of successful achievements, I am pleased to present my application for your consideration. Having several years of experience in the industry, and a strong educational background featuring a degree in Computer Science, I strongly believe I can make a significant contribution to the project. My expertise includes - Good hands-on experience in Java, J2EE, Python, Web scraping and data extraction. -Experience in ample frameworks like Spring, Hibernate, Struts 2 - Extensive knowledge of jQuery and JavaScript - Strong database knowledge specifically MySQL, Oracle, PHPMyAdmin and querying the database. Know-how of manual and Automated GUI Test Scripts based on the functional and non- functional requirements as described in software requirement specifications.  -Understanding the software requirements, business requirements, GUI requirements, and contribution to the Test Plan preparation.  -Maintaining test specification documents and performing manual testing.  -Designing test cases based on the functional and non-functional requirements as described in test plans, software requirement specification and change request forms.  -Execution and Development of test cases using testing tools like Selenium and Test Complete. • Developing and maintaining automated test scripts cases using testing tools like Selenium and Test Complete.  -Maintaining automated regression test suit.  -Development of review reports, bug status reports, functional specifications analysis reports, and quality summary reports. • Maintenance and tracking of bugs Over the years I have worked on website building, redesigning and maintenance projects and have got a good knowledge of the front-end technologies.

🥇 𝑻𝒐𝒑 𝟏% 𝒐𝒇 𝑸𝑨 𝑭𝒓𝒆𝒆𝒍𝒂𝒏𝒄𝒆𝒓𝒔 𝒐𝒏 𝑼𝒑𝒘𝒐𝒓𝒌 𝑷𝒍𝒂𝒕𝒇𝒐𝒓𝒎 🥇𝑻𝑶𝑷 𝑹𝒂𝒕𝒆𝒅 𝑷𝑳𝑼𝑺 𝒔𝒊𝒏𝒄𝒆 𝟐𝟎𝟐𝟎 & 𝑻𝑶𝑷 𝑹𝒂𝒕𝒆𝒅 𝒔𝒊𝒏𝒄𝒆 𝟐𝟎𝟏𝟕 I am a full-time, dedicated, self-driven, detail-oriented Project Manager and QA freelancer with 15+ years of hands-on experience in Manual, Automation, and Mobile testing. I am serving clients on Upwork from the era of Odesk and Elance. Testing and Quality assurance is my passion, and I enjoy doing "DESTRUCTIVE CREATION" to make application more "CONSTRUCTIVE". I can ensure that your application will work properly and will have great endurance. So if you are willing to see your application FREE FROM BUGS 🐛🐛🐛, on time, then HIRE ME🚀🚀🚀 𝑴𝒚 𝑺𝒑𝒆𝒄𝒊𝒂𝒍𝒊𝒛𝒂𝒕𝒊𝒐𝒏: 𝑻𝒆𝒔𝒕𝒊𝒏𝒈: 🗹 Web application testing 🗹 Accessibility Testing 🗹 Functional testing 🗹 Usability testing 🗹 Databox Whitebox testing 🗹 Database automation testing 🗹 UI/UX testing 🗹 WCAG 2.1 AA Compliance 🗹 WCAG 2.0 AA Compliance 🗹 Desktop testing 🗹 Security testing 🗹 Penetration testing 🗹 Grey testing 🗹 Responsiveness testing 🗹 Cross browser testing 🗹 Multiple platform testing 🗹 Smoke testing 🗹 Confirmation testing 🗹 Compatibility testing 🗹 Load testing ➡️ Jmeter 🗹 Performance testing 🗹 Automation Testing ➡️ Selenium Python ➡️ Playwright ➡️ Cypress 🗹 API Testing ➡️ Postman 🗹 Accessibility testing ➡️ Chromebox, NVD, Lighthouse, inbuilt screen reader Automation testing expertise: 🗹 Creation of framework from scratch 🗹 Handling dynamic locators 🗹 UI assertion by image comparison 🗹 Jenkins CI/CD 🗹 Github, Bitbucket repository 🗹 Cross browser automation testing 🗹 Browser stack automation testing 🗹 My SQL, Oracle connectivity 🗹 Browser stack automation testing 🗹 RestAPI testing using postman 🗹 GraphQLAPI testing using playwright pytest 🗹 API Testing automation using postman 🗹 CI/CD integration of API postman tests 🗹 API testing using selenium. Playwright. 🗹 Postman Test runner 🗹 Postman monitor 🗹 Running test using postman newman 🗹 Junit Cucumber 🗹 BDD framework Programming and Query Languages: 🗹 Python 🗹 Java 🗹 MySQL 🗹 Javascript 🗹 Typescript Business Analyst and Project Management: 🗹 User stories 🗹 User Journey 🗹 Task creation 🗹 Task assignment 🗹 Task tracking 𝑫𝒆𝒍𝒊𝒗𝒆𝒓𝒂𝒃𝒍𝒆𝒔: 🗎 Bug reports—With clear steps, annotated screenshot, videos, and log files 🗎 Test closure report 🗎 Test cases/Test scenarios 🗎 Help documents 🗎 Test plan 𝑫𝒐𝒎𝒂𝒊𝒏 𝑬𝒙𝒑𝒆𝒓𝒕𝒊𝒔𝒆: ✅ Crypto Wallets ✅ Survey development and Testing ✅ NFT marketplace ✅ Property Management ✅ Affiliate Marketing ✅ e-learning/LMS ✅ eCommerce/POS ✅ Business Intelligence ✅ AI based ✅ Fintech ✅ HR tools ✅ SaaS ✅ Social media ✅ B2B ✅ B2C ✅ SaaS 𝑨𝒖𝒕𝒐𝒎𝒂𝒕𝒊𝒐𝒏 𝑻𝒆𝒔𝒕𝒊𝒏𝒈: ✅Appium-Java-POM ✅Cypress-JavaScript-POM✅Selenium-Java-Cucumber✅ Playwright-Pytest-POM ✅ Selenium-Python-POM ✅ Selenium-Python-traverse ✅API testing using Postman ✅ API testing using selenium ✅ API testing using playwright ✅ graphQL API testing by playwright ✅ Jmeter ✅ Automation test integration on Browserstack and Lamdatest 𝑫𝒆𝒗𝒊𝒄𝒆 𝑨𝒗𝒂𝒊𝒍𝒂𝒃𝒊𝒍𝒊𝒕𝒚: 📱 iPhone 14, iPhone X, iPhone 11, iPhone 13 📱 Samsung A9, A6, S20 FE 🖥 Windows 11 - 16'' 🖥 Windows 11 - 14'' 🖥 Windows 11 - 10'' 🖥 Windows 10 🖥 Macbook Air - 13'' 💰 Paid subscription of BrowserStack with 3000+ real devices and browsers 𝑻𝒐𝒐𝒍𝒔: 🛠 Project management/bug tracking tool: Jira, Clickup, Trello, Red mine, Unfuddle, you track, Bugzilla, Mantis, test lodge, TFS etc 🛠 Test case management tool: Test lodge, Test rail, xray, qase, TFS etc 🛠 Accessibility Testing: Chrome Vox Screen reader, Light house, NVDA Screen reader 🛠 Team communication: Slack, skype, hipchat, Teams 🛠 Testing support tool: jing, gyazo, pic pick, MS-Office, snag it, dev tool bar 🛠 Wire frame: blasmiq, axure 🛠 Survey: qualtrics, survey monkey 🛠 Cross platforms connectivity: Browser stack 🛠 Simulators: Android studio, xcode What I learned today: 1) Captcha handling in selenium python 𝑳𝒂𝒔𝒕 𝑼𝒑𝒅𝒂𝒕𝒆𝒅: 20-Dec-2023

I am a senior Java developer having more than 4 years of professional experience in software development. A self-starter, and a proven team player, and always accepted the challenges that allow me to learn new skills while utilizing my hard-earned skills - Experienced in various areas in the design, development, and maintenance of software applications - Well-versed in developing applications based on SOA (SOAP/Rest). - Have experience in creating applications from scratch. - Have good knowledge in Java7/8/11/17, MySQL, Oracle ,Spring Frameworks(Boot, Security, Data JPA, Spring Web, etc.) and docker. - In addition to working independently on projects, I am well able to create value with a team. - Experienced in writing test automation and load test scripts. - Good problem-solving skills My specialization: ✅ Java, JavaEE, Java Web ✅ Spring Boot, Spring MVC, Spring Security, Spring integration, Spring MicroServices ✅ ORM, Spring Data/JPA/Hibernate/ JDBC, Spring sessions ✅ Databases: MySQL, Postgres Oracle Pl/SQL, MongoDB, Mongoose ✅ REST APIs integration, design, and development ✅ Soap Apis ✅ Linux, Dockerizatoin ✅ Rabbit Mq, KAFKA, and its integrations ✅ Front end development: Html, CSS, JavaScript, thyme leaf 𝙈𝙮 𝘾𝙤𝙧𝙚 𝙅𝙖𝙫𝙖/𝙎𝙥𝙧𝙞𝙣𝙜 𝘽𝙤𝙤𝙩 𝙀𝙭𝙥𝙚𝙧𝙩𝙞𝙨𝙚: 💥 𝐅𝐫𝐚𝐦𝐞𝐰𝐨𝐫𝐤𝐬: Spring boot, Hibernate, Web Services, JPA, JMX Client, Spring MVC, Spring Rest, Spring data, Spring Gateway, etc 💥 𝐃𝐞𝐯𝐎𝐩𝐬: Docker 💥 𝐃𝐚𝐭𝐚𝐁𝐚𝐬𝐞: SQL Server 2008, MySQL, Oracle, Postgresql, Mongo Db 💥 𝐎𝐭𝐡𝐞𝐫 𝐓𝐨𝐨𝐥𝐬 & 𝐓𝐞𝐜𝐡𝐧𝐨𝐥𝐨𝐠𝐢𝐞𝐬: SVN, GIT, PostMan, JMeter 💥 𝐒𝐞𝐜𝐮𝐫𝐢𝐭𝐲 𝐌𝐨𝐝𝐮𝐥𝐞𝐬: Spring Security 💥 𝐓𝐞𝐬𝐭𝐢𝐧𝐠: JUnit, Mockito 💥 Payment Gateways: Master Card 💥 Third-party Integrations: SendGrid API, TextLocal API, WhatsApp Business API

🏅 Top Rated Freelancer Hello !!! I’m a Software Engineer specialised in Backend Development with over 6+ years of working experience mostly working on Spring Framework. Hands-on design, development, implementation, and optimisation of the application. Use Object-oriented techniques and Software engineering best practices including Design review, Code review, and Code re-factoring. Experienced with the full Software development life cycle (SDLC) including - Requirement gathering - Prototyping (Design, Development & Debugging) - Testing and - Deployment Good experience in Agile software development methodologies (Scrum, Sprint plan, Timeline, etc.). The strong idea about the deployment process and tools like Maven, Jenkins. 🌟 My Specialization 🌟 ✅ Java (8, 11 & 17): JavaSE, JavaFx, JDBC, Swing, Java Beans, Java Mail. ✅ Java Ee Family: EJB, JPA, Hibernate, CDI, Servlets, RESTful Services (JAX-RS), SOAP Services (JAX-WS), Apache CXF & Bean Validation. ✅ Java Ee Web: JSF, JSP, Thymeleaf, Bootsfaces & Primesfaces. ✅ Spring Family: Spring MVC, Spring Boot (Data, Rest, Vault, Security & Cloud [Microservices etc.]). ✅ SQL: MySQL, PostgreSQL, MariaDB & Oracle ✅ NoSQL: MongoDB & Redis ✅ AWS: IAM, EC2, S3, RDS, Lambda, Elastic Beanstalk etc. ✅ Oracle Cloud Infrastructure (OCI): Compute Service & Autonomous JSON Database ✅ Message Queues: ActiveMQ & RabbitMQ. ✅ Networking: WebSocket (Stomp & SockJs), Socket & RMI. ✅ Testing: JUnit, Spring Test, Mockito, Integration Test, Unit Test. ✅ Versioning: Git, Github, BitBucket & VisualSVN. ✅ DevOps: Docker, Docker Compose & Jenkins. ✅ Web: HTML, CSS, SASS, Javascript, React Js, Bootstrap & Material UI. 🌟 WHY CHOOSE ME OVER OTHER FREELANCERS? 🌟 ✅ Client Reviews: I focus on providing VALUE to all of my Clients and Earning their TRUST. The Client Reviews and Feedback on my Profile are critical to me. ✅ Over-Delivering: My focus is on PROVIDING more than what I expect to RECEIVE. I take pride in leaving all of my Clients saying "Great Work." ✅ Responsiveness: Being responsive and keeping all lines of communication readily open with my Clients.

⭐ Top Rated Plus ⭐ 100% Job Success ⭐ 6000+ Upwork hours ⭐ 40+ Job's Successful Completed I am a Java professional with 10 years of experience. I have strong understanding and knowledge of the object-oriented approach, software engineering principles, concepts, and with practical knowledge on designing, building scalable applications with Monolith and micro-service model. I have grip on architectural design technique using the Domain-Driven Development approach (DDD), Test Driven Design(TDD). All these years i got chance to work on Financial, Healthcare, ERP, Customized CRMs, Order Management and Logistics solutions. My technology stack is : ✅ Back-End: Java, Spring Boot, Spring Security, MVC, Hibernate, JPA, JDBC, J2EE, Servlets, Web Services ✅ Front-End: Angular, HTML5, CSS3, JavaScript, JSF, JSP ✅ Middleware: Apache ActiveMQ, Kafka ✅ Cache: Apache Ignite, Redis ✅ Databases: RDBMS (MySql, Postgre SQL, MSSQL, Oracle), noSql (MongoDB)

Greetings 👋 I'm a certificated Java/AWS developer and lead engineer 👨‍💻with over 11,5 years of experience in the area. Being focused on Java Back-End development and working as a tech leader for the last few years, I've developed dozens of large, custom web applications based on Java technology, focusing on a wide range of industries including: Fintech, Telecommunication, startups, e-commerce, Healthcare and search engines. Have solid experience with Java (Spring, Spring Boot framework, Hibernate, etc.) and AWS stack (configuring, hosting, development). I can help you with: ✅ Cloud applications, scalable systems, ✅ Reliable, safety-critical systems, ✅ API design, development and integration, ✅ Enterprise Solutions Development ✅ Backend Systems Engineering ✅ Microservices Architecture 💡 𝐀𝐫𝐞𝐚𝐬 𝐨𝐟 𝐄𝐱𝐩𝐞𝐫𝐭𝐢𝐬𝐞 : Throughout career, I have spearheaded teams in delivering impactful solutions, including REST services for microservices-based applications and streamlining batch processes, cloud services (AWS). These accomplishments have significantly improved operational efficiency and customer experience. 🏆𝐓𝐡𝐞 𝐏𝐨𝐰𝐞𝐫 𝐨𝐟 𝐍𝐮𝐦𝐛𝐞𝐫𝐬: Having successfully worked with a diverse range of clients, I've completed numerous projects, with an outstanding track record of delivering results. My work has touched upon various industries, showcasing my adaptability and versatility. 🤝𝐋𝐞𝐭'𝐬 𝐂𝐨𝐥𝐥𝐚𝐛𝐨𝐫𝐚𝐭𝐞: If you're seeking a developer to implement solutions or create Java-based applications, let's connect! I'm excited to partner with you to bring your vision to life and drive success for your initiatives. With a commitment to excellence and a passion for innovation, I'm thrilled to embark on new projects and conquer new challenges with you! 𝐓𝐞𝐜𝐡𝐧𝐢𝐜𝐚𝐥 𝐝𝐞𝐭𝐚𝐢𝐥𝐬: ✔️ Java: Java 7-17, Java EE, JavaFX ✔️ Spring: SpringBoot, Spring Core, Spring MVC, Spring Batch, Spring Security, Spring Cloud, ... ✔️ Frameworks: Spring, Hibernate, Vaadin, Struts, PrimeFaces ✔️ Cloud: AWS, Docker, Kubernetes, ECS, EKS ✔️ APIs: REST, SOAP, WebServices, Swagger/OpenAPI 3 etc. ✔️ Web: Bootstrap, React, JavaScript, OAuth, Tomcat, JBoss ✔️ Performance optimization: JMeter, JProfiler, AWS X-Ray. ✔️ Version control: Git, Github, Bitbucket, GitLab, SVN. ✔️ CI/CD: Jenkins, Sonar, Bitbucket/GitLab pipelines, AWS CodeBuild/CodeDeploy. ✔️ Other: Maven, Nexus, Ant.

Back-end engineer with a lifelong passion for software, databases, and scalable distributed solutions. Over the 12+ years, I have developed or contributed to nearly 50+ projects in a variety of work like developing from stretch and scaled up to 1M+ user base, scaled from 1000 req/day to 1M req/day, and other technical works. I have worked with clients in various domains like healthcare, fintech, ed-tech, real estate, government agencies, and the non-profit sector, and have worked for companies such as Upwork (yes I worked for Upwork itself, a listed company on the NASDAQ exchange), LetsheGo (a listed company in Botswana Stock Exchange), OCO global, and many more startup companies in the world. Do you like Upwork's Reports & Time tracking feature? I am one of those developers who built that :) ✅ How can I help you ✓ I can handle your all end-to-end requirements analysis, UX, development, testing & delivery so you can focus on your sales & operations ✓ I can extend/develop your MPV product to production-ready ✓ I can develop products from scratch until the final delivery and support with maintained code quality and proper code coverage ✓ I can maintain your currently live products in the most optimum way by keeping quality and customer experience at first place in mind and with the minimum team and can save your cost ✓ I can choose the right technology stack and tools for your solution based on real needs and can save costs ✓ I can manage the team, do code reviews, handle CI/CD and releases, support live systems ✓ I can understand and implement the most difficult parts of software systems at very large-scale platforms like Upwork, (I am one of the Upwork platform devs) ✅ Expert areas - Java based back-end frameworks like Spring Modules (Spring MVC, Spring Security, Spring AOP, Spring Rest, Spring Data/JPA) & ZK (Zkoss) - ECMS implementation with Alfresco Content Services 4.x, 5.x, 6.x and Alfresco Process Services (Activiti) - RDBMS (MySQL, PostgreSQL, Oracle) - Graph/Document Databases MongoDB and DynamoDB - Web Crawlers with all features - Microservices based architecture implementation with Spring boot, Spring Integration and Apache Camel - AWS experience with RDS, SQS, SNS, SES, S3, and EC2 Instances - AWS API implementation experience - Queue based implementations with ActiveMQ/SQS - Test driven development implementation with unit and integration test cases with Junit/TestNG + Mockito + Spring - Database integration frameworks like JDBC/Hibernate/Sprint Data (ORM) and Spring Mongo - REST based Web Service/API implementation with Spring REST - CI/CD implementation with (Bamboo + Jenkins + Maven + Nexus + GIT(Bitbucket/Gitlab/Github)) - Payment Gateways implementations like Paypal and Stripe with debit/credit card integration - Solr/Lucene/ElasticSearch search engine integration - Jasper Reports (with DynamicJasper as well) - Agile Methodology understanding all terminology - Experience with implementing very complex queries with MySQL db - Java based Servers Tomcat/JBoss - Repositories like Git, SVN, P4V(Perforce) ✅ What my clients says ⭐⭐⭐⭐⭐ "Vishal is best developer I have worked with till date. He is prompt responsive, an incredible problem solver, very professional, highly skilled and great team leader. He handles our portal continuous development including all project phases starting from requirement gathering(calls), task creation with all details, estimation, development, deployment on all environments, testing, creating wiki pages, choose right technology stack and AWS resources and manage tickets! He is handling dev team and also do development himself and supports everyone. Will certainly work with him again when we restart the project development! Highly recommended developer." 👤 Hugo Galicia ( CEO @ chicagodealvault.com ) ⭐⭐⭐⭐⭐ "It was a highly positive experience working with Vishal. He was conscientious, always doing his due diligence to clarify any uncertainties before starting work. He gives accurate estimates of effort/time required for work, and either delivers on time or early. Overall a very reliable and dependable worker. We hope to work together with him soon. Highly recommended!" 👤 Dominik Bieringer ( CEO @ Kandu ) ⭐⭐⭐⭐⭐ "Very experienced and diligent contractor" 👤 Abhijit Dhar ( VP - Technical Services @ Whitehat Virtual Technologies ) ⭐⭐⭐⭐⭐ "Vishal is an excellent java engineer, with great business logic, self-motivated, with deep technical knowledge. He jumped right in and understood the current project architecture with minimum KT and limited documentation. He is always eager to solve new issues. I highly recommend him and will definitely work with him again, if opportunity permits. A pleasure to work with" 👤 Chris Adams ( CEO @ eDataSource )

I have worked on Java for more than 3 years. I have experience working with java, javafx, Spring, Spring Boot, Mysql, Javascript, Angular. ✅ Spring Family: Spring MVC, Spring Boot, Spring data JPA, Spring batch, Spring security, Spring ORM ✅ SQL: MySQL, PostgreSQL, MariaDB & Oracle ✅ Java (8, 11 & 17): JavaSE, JavaFx, JDBC, Swing, Java Beans, Java Mail. ✅ Java Ee Family: EJB, JPA, Hibernate, CDI, Servlets, RESTful Services (JAX-RS), SOAP Services (JAX-WS), Apache CXF & Bean Validation. ✅ Java Ee Web: JSF, JSP, Thymeleaf, Bootsfaces & Primefaces. Let's connect and discuss If you need a great java developer and problem solver.