Candidates 43
$6500 / mo
≈ $78000 / year net
Java Senior Engineer / Team Lead
Ukraine · 8 years of experience · Upper-Intermediate ·Published yesterday
Ukraine · 8 years of experience · Upper-Intermediate ·Published yesterday
9 years of commercial experience in web development. Worked for various global companies, employing both Outsourcing and Outstaffing models. Profound knowledge of Java and frameworks. Great experience in microservice architecture, REST, JMS and Amazon Web Services. Skilled in configuring CI/CD and DevOps.
$6500 / mo
≈ $78000 / year net
Tech Lead
Ukraine · 7 years of experience · Upper-Intermediate ·Published yesterday
Ukraine · 7 years of experience · Upper-Intermediate ·Published yesterday
Supported architecture of 5 microservices, that were connected to each other by Kafka, HTTP and GRPC. 3 of them were implemented using Java, 2 of them were implemented using Ruby On Rails and TypeScript. One of my proposed solutions was resource usage optimization of AWS EC2 machines, that performed Github build of Docker images
List of some responsibilities:
1. Close communication with technical staff from customer side about supported 5 microser-
vices and other.
2. Consultation teams about ways to resolve infrastructure problems. 3. Providing POCs for new architecture challenges.
4. Providing support for teams during solution implementation.
Technologies: AWS (CodeBuild, CodePipeline, Connector, EC2, S3, Security Groups, IAM, Auto Scaling groups, LoadBalancer, CloudWatch, CloudFront), GCP, Ruby On Rails, Vertx, Java 11/17, Github CICD, Jenkins, Artifactory JFrog, Kafka, MySql, TypeScript, React.
• Introduced two POC. One is Kafka tracing implementation for reactive framework Vertx, that was successfully implemented and delivered to production. Second one is adding ability to use locally changed JavaScritpt code on the fly for production without reboot application, that leaded to reducing of AWS EC2 costs.
• During building new microservice, our main goal was to have it running in AWS. We used for that AWS CodeBuild, AWS CodePipeline connected to Github by AWS Connector, EC2, S3, Security Groups, IAM. Second part was to add AWS Auto Scaling groups and application load balancer. For metrics we used AWS CloudWatch. Another goal was to get media files from different time zones. We archived it by using AWS CloudFront before S3 bucket. As we loaded data from different zones, it became available to use cache from CloudFront
• Implementing SaaS for B2B customer. Technical owner of several parts of the solution, using ElasticSearch, Cassandra, RabbitMQ, Redis were examined
• Implementation Spring reactive RabbitMQ client for core solution.
• Implementation reactive Profiler for platform solution.
Provided POC how to migrate from legacy Java microservice on Spring to Quarkus + Native image and realized it in production solution. Consult on pre-sale calls with AWS infrastructure (migration and hybrid environment). Supported two projects with the building of architecture solutions.
$7000 / mo
≈ $84000 / year net
Backend Tech Lead
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published 22 April · In passive search
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published 22 April · In passive search
Complete development cycle - from IoT devices and cameras firmware specification, database indexes, JMV perofrmance tuning, jQuery Web UI.
Experienced in communication with anxious customers.
Able to fix issues caused by overload of network/virtualization/multithreading/hardware resources.
Improved web server application startup from 40 minutes to 3 miinutes.
Increased web interface response time by adding one database index. Don't have exact metrics but customer assitance department noticed this in 15 minutes.
$4500 / mo
≈ $54000 / year net
Senior Java Developer
Ukraine · More than 10 years of experience · Advanced/Fluent ·Published 22 April
Ukraine · More than 10 years of experience · Advanced/Fluent ·Published 22 April
Front-end technologies: Angular 15, TypeScript 5
Back-end technologies: Spring 6, Hibernate 6, Spring Data, Spring Cloud, TDD, microservices, MongoDB, Redis, Kafka, Jakarta EE 10
DevOps: Docker, Kubernetes, Terraform.
$6600 / mo
≈ $79200 / year net
Senior Java Developer
Ukraine · Odesa · 7 years of experience · Upper-Intermediate ·Published 19 April
Ukraine · Odesa · 7 years of experience · Upper-Intermediate ·Published 19 April
(Apr 2016 – Aug 2016)
Java Software Engineer
NASA Ames Research Center (GSoC)
Improved and tested jpf-nhandler – an extension of Java Path Finder.
Designed and implemented cache for native methods.
Used technologies: Ant, Reflection API, Junit.
(Apr 2017 – Aug 2017)
Java Software Engineer
NASA Ames Research Center (GSoC)
Improved and tested jpf-nas – an extension of Java Path Finder.
Tuned application memory consumption using persistent data structures.
Used technologies: Ant, Reflection API, Junit, PCollections.
(October 2016 – March 2018)Java Software Engineer
EPAM Systems
Took part in development of einvoicing application.
Proposed and discussed implementation of different features / bug fixes.
Investigated and fixed bugs.
Participated in production support.
Implemented and enhanced frontend part of application.
Supported correspondence between program and relational representation of business object model (liquibase scripts).
Enhanced code quality and test coverage for Sonar quality gates.
Used technologies: EJB, REST, Web Sockets, Microservices, Hibernate, Oracle DB, Liquibase, Gradle, Junit, Mockito, Sonar, Angular JS, lodash/fp, karma.
(March 2018 – February 2020)
Java Software Engineer
AgileEngine
Took part in development of application for tracking different kinds of
deliveries.
Integrated systems of clients with our application.
Written automated tests to cover new functionality.
Integrated tool for collecting tracking information from different websites.
Fixed various bugs.
Participated in production support.
Elaborated and analysed new features.
Used technologies: Microservices, Spring Boot, Hibernate, PostgreSQL,
Kafka, Docker, Gradle, Maven, Junit, Mockito, Ansible, Amazon AWS.
Used technologies: Microservices, Spring Boot, Hibernate, PostgreSQL, Kafka, Docker, Gradle, Maven, Junit, Mockito, Ansible, Amazon AWS.
(March 2020 – present)
Java Software Engineer
Luxoft
Investigated financial domain.
Analysed and implemented integration of new customer. Integration includes direct files and third party APIs and clients integration.
Performed migration of microservice codebase from java6 to java8.
Improved performance of interaction with database.
Reorganized db level introducing relational model.
Looking for interesting project with modern technologies.
$4200 / mo
≈ $50400 / year net
Senior Java Developer
Ukraine · 10 years of experience · Upper-Intermediate ·Published 18 April
Ukraine · 10 years of experience · Upper-Intermediate ·Published 18 April
Java Developer, Luxoft Ukraine
Project experience - S&P project, developing web application for different types of "EXEL like" calculations, smart process automation for the data-intensive enterprise, creating configurations for automation data gathering from social networks, tax service and other governmental sources. Lead of one of subteams.
Technologies: Java, Spring, MySql, Xpath, WebHarvest, JUnit
10.2015-01.2019
Java Developer, Sigma Ukraine
Project experience - working with media platform, developing api's
to communicate between different systems, creating CRUD controllers,
writing integration test, legacy system support, splitting monolith
application into microservices.
Technologies: Java, Kotlin, Spring-Boot, MongoDb, ElasticSearch, Swagger, Git, Docker, Kubernates, TestNG, JUnit, Mockito, MockServer
01.2019-01.2022
Application developer, Oracle Ukraine
Project experience - working with platform that for customers of
specified energy company generates different kind of energy consumption reports. Platform itself consists of dozens of services (dropwizard based
microservices orchestrated by nomad)
Technologies: Java, Spring-Batch, MySql, Dropwizard, Swagger, Git, Docker, JUnit, Mockito, MockServer.
01.2022 - present
Ragnarök Group
Project experience - support and development of new features and services for one of the biggest sports betting platforms.
Technologies: Java, Spring, Kafka, Postgres, Git, Docker, JUnit, Mockito
$2500 / mo
≈ $30000 / year net
Java backend developer
Ukraine · 5 years of experience · Upper-Intermediate ·Published 17 April
Ukraine · 5 years of experience · Upper-Intermediate ·Published 17 April
Technologies stack: Java (8,17), Spring (boot 3, non boot), Spring MVC, Spring Security, Spring Data, Spring Retry, Hibernate, Querydsl, Lombok;
DB: PostgreSQL, MongoDb;
Cache: Redis, Ehcache;
Http clients: Feign client, Apache HTTP client
Documentation: Swagger, Open Api;
Monitoring: ELK, Grafana
Testing: Junit 5, Mockito, Powermock, Jacoco plugin.
Other: Gitlab, Redmine, Jira, Maven, SonarQube
$3000 / mo
≈ $36000 / year net
Senior Software Engineer/Tech Lead
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published 15 April · In passive search
Ukraine · More than 10 years of experience · Upper-Intermediate ·Published 15 April · In passive search
- Hibernate, PostgreSQL, SQLite, MongoDB
- Spark
- Airflow
- JUnit, Spock
- AWS, GCP
- Spring Boot, Spring Cloud
- Have certifications in AWS, Spark, Airflow, and other
- Creating a data processing pipeline to support ML, reporting, and web services
I'm expecting to work in a company that follows "freedom and responsibility" approach in team management, so small teams with a startup culture will fit best. I don't think I can be productive in big projects with a big amount of bureaucracy. I'm very interested in data engineering and machine learning integration.
$2000 / mo
≈ $24000 / year net
BackEnd Developer
Azerbaijan · 6 years of experience · Upper-Intermediate ·Published 10 April
Azerbaijan · 6 years of experience · Upper-Intermediate ·Published 10 April
$6000 / mo
≈ $72000 / year net
Senior Software Engineer
Ukraine · Odesa · 8 years of experience · Upper-Intermediate ·Published 8 April · In passive search
Ukraine · Odesa · 8 years of experience · Upper-Intermediate ·Published 8 April · In passive search
Current role: Senior Software Engineer.
I see myself advancing towards a deeper expertise in my field. I'm keep on exploring new technologies and methodologies that will enhance my programming and software development skills.
The project aimed to develop a comprehensive search platform enabling users to find the best prices for various grocery products within their local area.
- Shopping list price comparison
The project was designed to create a comprehensive platform that allowed users to compare prices for items on their shopping lists across different stores and online retailers.