Architect / Lead / Senior SDE

Lviv · $6500 · 9 years of experience · Advanced/Fluent

I have more than 9 years of commercial software development experience. During this period of time, I had a chance to work in different positions in various fields. My primary focus is on creating reliable software that is well tested and easy to maintain. I'm always open to new challenges and learning opportunities. I have a high level of commitment and perseverance.

Java, JavaScript, Python, go, AWS, Kubernetes, MySQL, PostgreSQL, Cassandra, MongoDB, ElasticSearch, redis, Memcache, Hibernate, HTML, Linux, Maven, Gradle, Nginx, Tomcat, Spring, Spring Boot, Prometheus+Grafana, Git, Microservices, Docker, SQL, JDBC, Kafka, GraphQL, REST, Cucumber

- Led agile teams up to 10 people - Actively participated in the hiring process of a company - Took part in pre-sales activities - Designed and led the implementation of a scalable cloud-based notification system with microservices architecture and system monitoring - Designed and implemented scalable billing pipeline using serverless architecture - Successfully passed all interviews in the well-known tech giant

I'm looking for new career opportunities where I can have technical ownership and a lot of freedom in decision making. I prefer modern technical stack and greenfield projects.


Java Software Engineer 🔥

Lviv · $4000 · 4 years of experience · Intermediate

Two last projects: E-commerce platform Project Role: Java Developer Project Description: E-commerce platform for one of the largest building merchants. Achievements: • Implemented integration with payment provider for new checkout user journey. • Implemented Location micro-service • Contributed to open-source Scala lib stream-reactor with implementation of GEOADD support for Redis Kafka sink connector Responsibilities: • Designing and developing new checkout user journey • Providing REST API for existing platform functionality • Developing Price/Promotion service • Covering code with unit tests • Covering functionality with BDD tests • Temporary performed Technical Lead responsibilities • Developing Gradle plugins for the infrastructure purposes • Developing non-blocking micro-services Tools & Technologies: Java 8, Hybris, Ant, MySQL, Swagger, Tomcat, Jenkins, Git, Spring IoC, Spring MVC, Spring Boot, Junit, Mockito, GraphQL, BDD, Cucumber, Scala, Groovy, Spock, Jira, Elasticsearch, Kibana, RxJava, Redis, Kafka, Kafka Streams, Spring Boot, Docker, Kubernetes, GraphQL. Duration: 18 Price Optimization Platform Project Role: Java Developer Project Description: SaaS solution which consist of two major applications. The first one uses data science and optimization to give decision makers pricing guidance to help them make the best possible decisions. The second one tells B2B sales people where the best opportunities are to retain and grow customer relationships, improving customer retention rates and generating sustainable organic growth. Scrum methodology was used on the project. Achievements: • Developing cache invalidation feature for the microservices. • Participated in developing BULK API feature. • Participated in integrating microservices infrastructure with monolith Responsibilities: • Improving existing and developing new features. • Writing unit, contract, integration and performance tests. • Handling different types of issues.• Performing estimation and capacity planning work with the team to create and implement new features. • Maintaining application and bug fixing. Tools & Technologies: Java 8, MSSQL, Gradle, Apache CXF, Swagger, Tomcat, AWS SNS, AWS SQS, Jenkins, Perforce, Hibernate, Spring, HTML, CSS, JavaScript, Docker, Gatling, Junit, Apache POI, Mockito, PowerMock, Salesforce, Apex, Jackson, AWS RDS, AWS API Gateway, AWS Route 53, AWS ECS. Duration: 24 months

Java, REST API, AWS SNS, AWS SQS, CXF, gatling, Gradle, HTML5, JavaScript, JAX-RS, JPA, OOP/OOD, Perforce, Scrum, Servlets, Spring, Spring Boot, Spring Data, Spring MVC, Spring Security, SQL, AJAX, Ant, AWS, AWS API Gateway, aws lambda, Eclipse, EJB, Git, Hibernate, HTTP, IntelliJ IDEA, Java Cryptography Architecture, JSP, JUnit, Maven, Mockito, Multithreading, MySQL, PowerMock, React, React-native, Shell, Tomcat, VIM, AWS DynamoDB, AWS ECS, AWS S3, bash, Struts, XSLT, Scala, TDD, Cucumber, Hybris, Kubernetes, Kafka, RxJava, Groovy, Redis, Apache POI, GraphQL, Docker, Jenkins, Spock, Microservices, Linux, HTML


Senior Android Developer

Lviv · $3800 · 5 years of experience · Upper Intermediate

Android, Java, Kotlin, Dagger2, RxAndroid, Android Architecture Components, Room, Live Data, Android MVVM, Android SDK, REST API, SQLite, Room, Tomcat, Multithreading, XML, JSON, Adobe Photoshop/Illustrator, Algorithms, IntelliJ IDEA, Hibernate, Threads, Gradle, Maven...

Adobe Photoshop, Android, Android SDK, Git, IntelliJ IDEA, Java, Linux, OOP/OOD, Retrofit, Threads, Gson, HTML, JSON, Maven, Multithreading, OkHttp , realm, REST API, Tomcat, CSS, Gradle, MySQL, Unix, XML, Algorithms, Hibernate, LiveData, MVVM, Kotlin, SQLite, Dagger 2, Room, Android Architecture Components, RxAndroid, Firebase, Design Patterns

social media projects, medical projects, sports projects, financial projects, video/audio streaming/recording projects, low communication level data transferring...

Adequate managment. Professional growth. Comfortable workspace.


Java Developer

Lviv · $3000 · 3 years of experience · Upper Intermediate

Have a good understanding of the object-oriented approach, software engineering principles, and concepts. Mainly worked with: Spring Framework, Hibernate/JPA.

Maven, Spring, Java, Hibernate, Git, JUnit, MySQL, OOP, SQL, REST API, JPA, Jira, Design Patterns, JSON, Patterns, PostgreSQL, Spring Boot, Selenium, Java Core, REST

Interested in project without legacy code. Working together with kind and skilled team.


Java Developer

Lviv · $2700 · 2 years of experience · Intermediate

__Vakoms__ Taboola Project(The biggest advertising platform.) I have participated in most part of software development, estimation, coding, testing, debugging and building. __Globallogic__ Java Software Developer Project: An application that sends SMS with special internet settings for mobile phones. Responsibilities: I worked with front-end, server-side... 1) Plug-in for this project that encodes special data, saves it in the database. 2) The big editor that manages steps with special settings. 3) Unit tests. 4) Deployment on stage(Amazon Linux server without Jenkins). __LetGetItStarted__ Java Software Developer Project: 1) An application that calculates seek-days and day-offs, salary for employees. System managing customers of the company. E-mail reminder about different events(scheduled services). Registration\Login for employees(Oauth\Oauth2 - google\FB). Task manager for employees. Full project(server-side) was developed by myself. 2) A travel app. Responsibilities: Added possibility to refresh tours in the app. New tours stored on the Amazon server (bucket) as a JSON. So if guide needs to refresh data - does some things in the app - application retrieves new data from Amazon server, parse it, refresh in the database. 3) Many smaller projects(If needed to add some functionality) ________________________________ Programming Languages/ Technologies: Databases: MySQL Vertica Spring: Spring core Spring boot Spring Data JPA Spring security(Auth basic\OAuth2 - registration\authentication) Microservices(Eureka, Zuul, Ribbon) JDBC Hibernate Servlet API HTTP Mail services Thymeleaf Swagger 2 Scheduling services Testing: JUnit+Mockito REST Assured Selenium Web Servers: Tomcat

Spring, Maven, Java, Hibernate, MySQL, Git, JUnit, OOP, PostgreSQL, SQL, JPA, REST API, Jira, XML, JDBC, Tomcat, JSP, Design Patterns, JSON, Servlets, Swagger, WebServices, Spring MVC, REST, Spring Boot, Linux, Mockito, Java Core, Spring Security, HTML, CSS, JavaScript, Java 8, Jenkins

I'm not looking for a full-stack position.


Java Developer 🔥

Kyiv, Canada, Lviv, London, Amsterdam, EU, Berlin · $3000 · 2.5 years of experience · Intermediate

Java Full Stack Web Development, Java Spring Angular :net enterprise applications

Bahar , Java , Maven , Git , Tomcat, CSS, Spring MVC, JavaScript, XML, Spring Boot, Linux, JSON, Hibernate


Java Developer/Delivery Manager 

Lviv, remote · $4000 · 4 years of experience · Upper Intermediate

Backend development using standard Java EE stack. Microservices development. Event-sourcing development. Experience with various database management systems: both SQL and NoSQL. Team leading experience. I know how to deliver the product, decompose requirements, pick technology. My current goal is to move closer to delivery, simplify development process and help business to get its benefits and thrive.

Design Patterns, Java, Jira, Microservices, MongoDB, OOP, REST, Git, MySQL, Spring, Spring Boot, Cassandra, CSS, Hibernate, JMS, JUnit, Maven, PostgreSQL, Tomcat, Highload, SOAP

OCA Certified. End-to-end leading experience. Private Tunnel 2.0 backend author.

Perfect match would be a project related to valuable cutting-edge industries: medicine, energetics, genetics, environment, longevity. Prefer to work with companies with strong and solid corporate culture and mission. Prefer teams that are passionate or at least enthusiastic about product they create. Do not like to attend endless meetings and standups. I believe that most of the issues can be solved quickly using texting or small group live discussions.

25 February

Solution architect/CTO

Lviv · $6500 · More than 10 years of experience · Upper Intermediate

Experienced Solutions Architect with a demonstrated history of working in the internet industry. Strong engineering professional skilled in webservices(SOAP/REST), JMS, AWS, MD, Scrum, JUnit, Object-Oriented Programming (OOP) and XML, etc. Projects in finance, gambling, video streaming etc

Java, Spring, Hibernate, Git, Maven, JUnit, SQL, REST API, OOP, JPA, REST, Design Patterns, JSON, Microservices, Docker, JDBC, Jira, Linux, Mockito, Tomcat, XML, Spring WebSocket, Restful Web Services, Testing Frameworks: JUnit 4;, OOP/OOD, Spring Framework, Parallel Programming, Architectural design patterns

Video streaming on AWS Multitanent sulitions

25 February

junior java developer

Lviv, Ivano-Frankivsk, Khmelnytskiy · $1200 · 1 year of experience · Intermediate

With 1 year of experience in IT. Good knowledge of computer science and software engineering fundamentals. Practical experience in major web programming tools and frameworks and languages ​​(Javascript, Typescript, React, Redux, Context AP, Express, SocketIO). I am very hardworking and I want to create the best product. Always open for opportunities to learn something new.

Java, Spring, OOP, MySQL, HTML, CSS

Хороша атмосфера в команді, нові технології , розвиток в професійній сфері.

25 February

Android Developer

Lviv · $2800 · 4 years of experience · Intermediate

Good knowledge of Android SDK; Material Design for Android; Java Core, Kotlin; RxJava, Dagger 2; Room, OrmLite; Android Design Patterns, MVP; MVVM; Multithreading; REST API; JSON, XML.; Java; Strong knowledge of OOP, Design patterns; Good knowledge of SQL; Version control systems: Git, SVN; Strong mathematical background; Experience in writing technical documentation and user manuals; Effective team player. I want to continue my professional growth as Android developer.

The main goal is to gain experience for forward self-development and realization of my potential.

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