Lviv · $4200 · 5 years of experience · Upper Intermediate
Have a decent experience in server-side development as well as mobile development for Android. Have been involved in various of projects related to sport, gambling, gaming, Telecom domains. Target tech-stack: Java 8/11, Kotlin, Go, Spring Boot, Microservices, Docker, Redis, AWS, ECS, S3, AWS RDS, CloudWatch, SQS, SNS, AWS Lambda.
Java, Spring, Docker, AWS, RxJava, SQL, Golang, OOP, Dagger 2, Firebase, Maven, Android SDK, JUnit, REST API, Spring Boot, Microservices, KotIin, Git, JPA, Design Patterns, Linux, Spring Core, MongoDB, MySQL, Hibernate, NoSQL, Spring MVC, Jenkins
- Mentoring experience - Oracle Certified Associate, Java SE 8 Programmer - MongoDB For Java Developers Certification
- Challenging Project - Proper Management - No Legacy Not interested in Android vacancies
Lviv · $2200 · 4 years of experience · Upper Intermediate
Spring Boot, Java 8, Mongo DB, OOP, REST API, Design Patterns, Git, Unit Testing, JSON, JUnit, Spring AOP, Swagger, MySQL, Maven, REST, JPA, SQL, Spring Data, Angular 6, HTML/CSS, Hibernate, Spring
I would like to develop an interesting product connected with Java-based technologies.
Lviv, USA, London, Canada · $2800 · 3 years of experience · Intermediate
Projects: - Smart Technologies. SMART Notebook Player is now the default whiteboard app on education models of SMARTboard interactive displays. Use SMART Notebook Player to create whiteboards and open, view, and interact with SMART Notebook files. I developed new app features like templates, image search, saving of geometrics objects, images, and video. (Technologies: Kotlin, MVVM(Clean), RxJava/Coroutines, Retrofit, Google API/Bing API, Glide, Firebase). - Hive Social. This is a social network in which every user can find new friends based on interests and hobbies. Hive allows you to post in various categories and share your successes or interests. If you are looking for like-minded people and want to meet with them and have a live time, this social network will make it easier. You can find Hive - Bringing Social Back on Google Play Market and Apple App Store. (Technologies: Java, MVP, RxJava, Retrofit, Realm, Google Api, Glide, Socket IO). - Unknow name. This is an application on iOS and Android devices for creating card with content such as photos, videos, links, notes, and more. The user has the ability to send the card to other users or himself. These cards can be sent after a while or under other conditions. (Technologies: Java, MVP, RxJava, Retrofit, Realm, Google API, Glide, Socket IO). - Healo. This is a medical service which delivers exercise video sequences for musculoskeletal pain relief based on self-diagnosis to the users.I developed the main functionality for the app. Also, I created algorithm for calculating and handling some parts of images and return the result. (Technologies: Kotlin, MVP, RxJava, Retrofit, Realm, Google Api, Glide, Socket IO). - Unknow name. This a bank application. What provide opportunity to store, transfer and share your money. I take the main part of the development process. (Technologies: Kotlin, MVVM, Dagger 2, Coroutines, Data Binding, Retrofit, Realm, Google API, Glide). - ClearEnglish - Developed additional functionality for existing Android application. Was involved in developing a database of words and correct spellchecker work’s, Google Analytics, ect.
Android, Android SDK, Scrum, Java, kotlin, SQLite, RxJava, MVP, MVVM, Retrofit, Design Patterns, JSON, Jira, SOLID, Realm, Android Architecture Components, Google Play Services, socket.io android, Picasso/Glide, XML, Git, REST API, GraphQL, Algorithms, Custom Views, AndroidAnnotations, JUnit
Lviv, Remote · $3400 · 3 years of experience · Upper Intermediate
Hi there, I am 3 years Java developer with a great experience of work with the Spring framework. Mainly I am responsible for back-end and frontend tasks (80/20). I had a long term experience with the development of the manager organization tool. Currently, I am working with Confluence and Jira plugins developing.
I am proud of adding new functionality that already increased sales of plugins.
I am looking for a Java project with new technologies and a cool, friendly team, long-term project. Preferably remote position may consider office work as well.
Lviv · $4000 · 3 years of experience · Upper Intermediate
Have experience in Java back-end development 3+ years (3 projects: telecommunication and 2 healthcare), C# development 1.5 years (desktop), test automation 3 years (web UI,desktop and performance testing). Have been involved in projects from scratch and legacy code as well.
Hibernate, Spring, Maven, Git, REST API, Java 8, JUnit/TestNG, Design Patterns, Java Core, Spring Boot, JMeter, Selenium WebDriver, JPA, OOP, SQL, JDBC, Tomcat, Spring MVC, PostgreSQL, Mockito, AWS, Microservices, Docker, Kubernetes, ActiveMQ
I am proud of being involved into building of healthcare projects. - one healthcare project has been built from scratch; - increased passing rate of integration tests; Making good for people and developing my technical skills. Have a bunch of certifications.
Looking for a Java back-end project ONLY with microservices, AWS, Kafka and other cool technologies and cool, friendly team, long-term project. Preferably remote position, will also consider family relocation ONLY to US (negotiable compensation depending on state, project, etc.), may consider office work as well.
Kyiv, Kharkiv, Dnipro, Vinnitsia, Lviv, Odesa · $3800 · More than 10 years of experience · Advanced/Fluent
Projects in financial services with big data, high available and high scalable. More than ten years of experience in Java. Next technologies have been used: Java 8, Java 11, Spring 5, Spring boot 2, Mongo, Sql, Angular 6, Agile, Scrum, Microservices, Kubernetes, Docker, AWS, Kafka, Kibana, Grafana
Java, Microservices, SQL, NoSQL, Angular 6, Spring Boot, Docker, AWS, Kubernetes, MongoDB, Kafka, Kibana, Prometheus+Grafana, Kanban
Different projects with big amounts of data, high available, high scalable in Java and Spring, micro-services architecture.
Not considering the Java EE. New technologies, good team, interesting project.
Lviv · $2800 · 3 years of experience · Upper Intermediate
Java 8,11 Spring(Security, JPA, Boot, Core), SOLID, Hibernate, JPA, REST web services, Data migration between databases, Abstract patterns, Maven, MySql/ PosgresSql, Swagger, Git, Lombok, FindBugs Jira, Junit
Java, JPA, MySQL, REST API, SOLID, Spring, Hibernate, Java EE, Spring Boot, SQL, JUnit, Git, REST, OOP, Maven, Design Patterns, PostgreSQL
Interesting challenging project without legacy code. Flexible working hours. Opportunity to growth as java developer.
Lviv · $2000 · 3 years of experience · Intermediate
Project: Build a search platform with the support of multitenancy, rule engine, aggregations, filters, suggestions and synonyms. Project Role: Key Developer Tasks performed: • developed new features for the data loading process that allowed save additional information for "Store-specific search" • took part in the integration with BloomReach search engine • conducted a code analysis to identify problems with system operation and find the best solutions to help support core business processes • implemented filtering and aggregation data for a new tenant; • performed code review • wrote unit tests Environment: • Elasticsearch • IntelliJ IDEA, Git, Jira • Vert.x, Spring Boot, Spring, Logback, JUnit, Mockito, Httl Project: Implementing new UI features and custom reports for financial software to collect and visualize user data online, assist with further evaluation and decision-making process of issuing the credit. Technologies: Java EE, Tomcat, JSP, XML, Jasper Reports, Oracle Database, JUnit Responsibilities: - Java EE components development - The GUIs development for browser-based applications - Back-end development and implementation of new features Project: SmartPOS is an application for POS-terminals Technologies: Spring, MyBatis, MySQL, Informix, JUnit, Maven, Git. Responsibilities: Bug fixing and regression testing support; Development back-end and implementation business logic for new features; Integration with CardConnect payment system by a RESTclient; Development the work of POS-terminals in joint mode. It means that terminals on the same location can work as one business unit
Java, Spring, OOP, JPA, Hibernate, Git, Maven, JUnit, SQL, REST API, JSON, Design Patterns, Java 8, Linux, JDBC, MyBatis, MySQL, Spring MVC, Jira, REST, JSP, Java EE, Spring Boot, Mockito, MongoDB, Java Core, Mongo, hibernate, ORM
Implemented integration with payment system by REST client. Before that, the project had had a connection with PIN pad only by USB port. Development of the concept and implementation of the distribution of DDL requests to all POS terminals integrated into a common network.
Kyiv, Kharkiv, Lviv, Odesa · $3500 · 6 years of experience · Advanced/Fluent
Back-end developer with 5yrs of experience in Java.
Remote position only!
Remote work, Ukraine · $3000 · More than 10 years of experience · Upper Intermediate
Over 30 years experience in database applications design and development, including 9 years as full-time freelancer. Areas of expertise: C/C++, Oracle, MySQL, MS SQL, Java+Swing, JavaFX. My freelancer's profile: https://www.upwork.com/o/profiles/users/_~0187cd88db7e6dfb55/
SQL, Oracle, Linux, T-SQL, PL/SQL, MySQL, MS SQL Server, Business Analysis
- Police criminal inform system for Zaporizhzhe city police board. Used over 13 years without any support from my side. - Enterprise-level application including accounting, HR-management, logistics, warehouses management for building company in South Africa. I have developed this during 3 years individually, and it's used over 5 years already
Minimal supervision, minimal bureaucracy, clear tasks and specifications, mostly individual responsibility.