18 June

Scala Developer

Barselona, Sidney · $5000 · 5 years of experience · Upper Intermediate

Have more than 10 years in IT. Last 5 years I have been working as a software engineer.

Scala, SQL, Kafka, Cats, Cats-effect, Doobie, http4s, Sbt, Functional programming, Fs2, Java, Maven, Mockito, Hibernate, OOP/OOD, Spring, Netflix Oss, RxJava, Akka

Interested in Scala functional programming. Distributed and high load real-time systems. Also, I'm looking for relocation to Spain / Australia

17 June

Software Engineer 🔥

Kyiv · $4000 · 3 years of experience · Upper Intermediate

Programming languages: Java(main), Scala, Python DB: Postgres, MongoDB, HBase, Impala, Hive Technologies/Frameworks: Spring(Boot, Core, Data, Security, Cloud), Hibernate(QueryDSL), Hadoop, Spark(Core, SQL), Kafka Processing engines: Airflow, Azkaban GCP, BigQuery SCM: Git, Mercurial Build tools: Maven, SBT, Gradle

Hibernate, Java, Linux, PostgreSQL, SQL, Gradle, Jenkins, Maven, Scala, Spring, AWS, HBase, impala, JavaScript

Fully designed and partially implemented new version of company's key REST API which caused average response time decrease by 70%. Designed and implemented object's changes metadata provider library based on Javers for event sourcing.

I am seeking interesting challenges and abilities for professional/experience growth. Interested in data processing systems, highload systems with microservice architecture. Not interested in Java EE development and any kind of UI development(JS, JSP, JSF and so on)

15 June

Разработчик Scala 🔥 

Kyiv · $5500 · 6 years of experience · Advanced/Fluent

- Scala - Java - Bunch of less popular languages to a lesser degree - Linux - Redis - Cassandra - Clickhouse - MySQL - Neo4j - Docker - MongoDB - Akka ecosystem (Actors, HTTP, Streams etc) - Apache Spark - AWS (S3, SES etc) - Telecom [messaging] protocols - FP in Scala - Buzzwords FP in Scala. Junior mentoring. No Spring/JavaEE experience. Experience in migration of Java projects to Scala. Simple, effective solutions.

neo4j, Java, Scala, bash, ElasticSearch, Linux, Cassandra, docker, MongoDB, Redis, ClickHouse, Git, Kafka, SQL, Python, Akka, Spark

- Bachelor's degree from NTUU 'KPI' (http://ipt.kpi.ua/) (cryptography) - commits to open-source projects - several successful projects in production - led transitions from Java to Scala for several projects - leading & mentoring teams

++: - product company - modern technologies applied to challenging tasks - back-end development - enthusiastic teammates +/-: - floating workday (come early - leave early, come later - leave later) or remote --: - outsourcing - legacy solutions which you won't consider upgrading/refactoring/etc.

13 June

Senior Scala software engineer

Kyiv · $5000 · 4 years of experience · Upper Intermediate

LOOKING ONLY FOR PRODUCT COMPANIES (NO OUTSOURCE OR OUTSTAFF) Software engineer with a pragmatic mindset. 4 years of commercial experience with Scala. Able to work independently as well as part of a team. Experienced with the data-intensive application. Have managing experience, gave teamwise lectures, conducted interviews.

Scala, Akka, Concurrency, Flink, Functional programming, Kafka, MongoDB, Apache Storm, Cassandra, Docker, MySQL, RabbitMQ, Redis

Developed system architecture from scratch. Reduced streaming system latency from 2 sec to 0.5 sec. Build performance testing infrastructure. Redesigned NoSQL database schema, migrated huge chunk of data transparently for users. Wrote DSL for Kafka for QA team. Improved system stability.

Result-oriented and people-oriented management. Open-minded team. I want to clearly see my role in bringing value to the company, product. Flexible working schedule. Ability to work not only from the office.

12 June

Senior Big Data engineer

Kharkiv · $4500 · 3 years of experience · Advanced/Fluent

Business logic implementation and REST API development on Java IoT project; Business logic and REST/SOAP integrations development on Java/Hybris e-commerce project; Spark jobs development on Scala/AWS big data project; Backend tech lead in startup (Scala); Data lake development on Java/GCP big data project; Used technologies: Scala, Spark Java Core(Oracle Certified Professional, Java SE8 Programmer); Java EE; Java Servlet API, JSP; Spring Framework(Spring Data, Spring MVC, Spring REST, Spring Security); Play 2; Akka, Akka Http; JDBC, JPA, Hibernate, Slick; RDBMS: PostgreSQL, SQL Server, SQLite; NoSQL: Cassandra, Realm(for Android); Amazon Web Services (AWS Java SDK, Amazon S3); Google Cloud Platform(Big Query, Dataflow, GCS, Firestore, Pub/Sub, Bigtable, Stackdriver); Google Drive API; Also: Android SDK; Some experience with frontend (markup, Bootstrap lib, JQuery, AngularJS); Unit testing(JUnit); Maven, Gradle, Ant, sbt; Terraform; Version control systems: Git

Jira, Agile, Java, OOP, Spring, JUnit, Multithreading, Scala, Scrum, XML, AWS, JDBC, PostgreSQL, Spark, Android, Android SDK, Gradle, SQLite, Python, MongoDB, Akka, Kafka, Maven, REST API, Cassandra, SQL

Experience with Scala, Spark, AWS and GCP-based big data infrastructure; Java-based e-commerce solutions; Java-based IoT solutions.

Scala/Big Data projects are highly preferable. NO - legacy/support.

12 June

Разработчик Scala

Remote work, Ukraine · $6000 · 5 years of experience · Upper Intermediate

Scala, Akka, Akka streams, Akka Http, Play, REST, anorm, cats, SBT, ScalaTest, Git Java - 6 years Scala - 5 years

TDD, Akka, Java, Lift, REST API, Scala, MySQL, Play, Spray, Akka Streams, MongoDB, Spark

Reorganized and improved existing tests execution time so that they pass within 30 seconds instead of 5 minutes. Redesign of shopping cart to support wish list and saved cart functionality, application integration with social networks and loading time speed-up of main search page from 3 sec to 200 ms by implementing product pool cache. Provided RESTful web services for the mobile application, setup automatic build process and integrated it with Jenkins, as well as covered code with unit and integration tests using TDD approach

I am skilled developer who enjoys challenges. I seek position to further expand skills and contribute to a company with creative personnel and challenging projects. My Computer Science interests span several areas including highly concurrent and distributed systems, mobile solutions and full stack of backend application development.

6 June

Senior Scala / Java Developer 

Remote work, Ukraine · $4500 · 7 years of experience · Upper Intermediate

Scala, Akka, Play Framework, Cassandra, ScalaTest, AkkaTest, CQRS, Event Sourcing, ELK, Microservices, JWT. Java Core, Algorithms, Multithreading, Spring(Core, Security, Data, MVC, REST), Hibernate, Google Guice, Google Gin, GWT, GWTP, CSS, HTML. JUnit, Mockito. Oracle DB, PostgreSQL, MS SQL, MySQL. Design Patterns, TDD, SOLID, KISS, DRY. TeamCity, Jenkins, Git, Maven.

Akka, Cassandra, Java Core, java.util.concurrent, PostgreSQL, Scala, Linux, Slick, Spring, Git, SQL, Maven, REST API, Docker, Java, OOP, Multithreading, Play Framework, Sbt

Designed new wallet service with 8K RPS throughput per node on top of Playframework, Akka, Akka Cluster, Cassandra, Scala

Great goals, cozy atmosphere, a team of professionals, challenge

3 June

Java/Scala Developer

Remote work, Russia · $4800 · 6 years of experience · Advanced/Fluent

Have been working remotely for last 2 years Cloud file storage client and server parts components design and development, deployment, monitoring, profiling and bugs fixing. Highload scalable multithreaded applications (over 3K rps per node) design and development, deployment to production, profiling and monitoring providing, bugs fixing. The current project is telegram similar messaging platform. Backend design&implementation is the responsibility together with some devops tasks

Scala, Java, Highload, TCP/IP, Linux, Gradle, SBT, JMX, SQL, NoSQL, Redis, Cassandra, Grafana, Prometheus, Netty, Spring, GIT, JDBC, Akka

1. Development of client and server parts according to architecture for the cloud file storage, where client sends to server file by parts via own TCP protocol. Load balancing implementation for files receiving channels according to channels statistic data. testing (unit, integration, load), profiling, monitoring providing, bugs fixing, scaling of server part. 2. Creating highload application (over 3k rps per node), including steps: designing, development, testing (unit, integration, load), profiling, monitoring providing, bugs fixing, scaling with asynchronous caches updating using database replication (mysql binary logs) 3. Creating of highload server having dynamically updating API

Full-time remote work with business trips to other cities or countries. Casino and online games subjects are not interesting.

2 June

Senior Scala/Java BigData Developer

Kharkiv · $5000 · More than 10 years of experience · Advanced/Fluent

Solid professional with head-on experience in business and hi-tech environments Java, J2EE, Scala Spring, Hibernate, JSF, GWT; Angular; JavaScript; WebServices, WSDL, SOAP, JAX-WS, CXF, JAXB; REST; JUnit, TestNG, HttpUnit, ScalaTest, Mockito; RabbitMQ, ZooKeeper; SOLR, ElasticSearch; Datadog, Kibana; AWS, S3; SQL, JDBC, H2, Oracle, MySQL, PostgreSQL; HP Vertica; NoSql, Mongo, Couchbase, Redis; Hadoop, Hive, Spark, Presto, NiFi, AWS EMR Docker, Docker-compose, Kubernetes, Microservices Maven, Gradle, SBT, Ant; Jenkins SVN, Git, Github Tomcat, JBoss, Glassfish, Weblogic, Netty, Undertow

Agile, Git, Hadoop, Highload, IntelliJ IDEA, Java, Java Core, Java EE, Kanban, Linux, Scala, Scrum, Spring, SQL, AWS, MongoDB, RabbitMQ, Redis

Interested in robust scala/java big data projects with business value. Less bureaucracy, more issues solved for biz need.

31 May

Senior Software Engineer

Kyiv · $5000 · 6 years of experience · Upper Intermediate

Experienced software engineer with diverse background from web based startups to legacy enterprises, proficient in financial and analytics domain. Has been working as a senior developer and technical lead. Technology stack mostly driven by such languages as Scala, Java, C# and libraries/frameworks accompanying them.

Scala, Akka, Git, SQL, Play Framework, OOP, Slick, Sbt, Functional programming, Hibernate, Java, PostgreSQL, MySQL, RabbitMQ, Akka HTTP, Akka Actors, Docker, C#

Interested in high load/big data projects.

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