Candidates 63
$9000 / mo
≈ $108000 / year net
Scala / Java developer, Tech Lead, CTO
Ukraine · Dnipro · More than 10 years of experience · Advanced/Fluent ·Published today · In passive search
Ukraine · Dnipro · More than 10 years of experience · Advanced/Fluent ·Published today · In passive search
Desired position – lead software engineer / technical manager.
Technical skills:
Languages
• Scala: 7 years
• Java: 7 years
• Other: Javascript, HTML, CSS, bash, Python
Technologies
• Scala: akka, akka-http, cats, cats-effect, refined, shapeless, sangria, spray-json, circle, scaldi, slick, MongoDB Scala driver, scalatest, specs2.
• Java: J2SE, J2EE, JDBC, Hibernate, EHCache, JPA, iBatis, Spring (IoC, Web MVC, Portlet
MVC, AOP, WS) RMI, JCR (JSR-283), Portlets, Apache CXF, Servlets, JSP, Wicket, GWT, GXT, Akka, JUnit, Mockito, JBehave
• Javascript: jQuery, Angular 1.0, React (basic)
• Database: MySQL, Microsoft SQL Server, Oracle, MongoDB
• Communication: REST, SOAP, Rabbit MQ, gRPC, GraphQL
• Cloud: Google Cloud (Storage, App Engine Flexible, Cloud SQL), AWS (S3, IAM, Lambda, Lake Formation, Glue, Athena, EC2, RDS, VPC, KMS)
• Containers: Docker, Docker Compose
• Tools: Ant, Maven, SBT, UML, Subversion, Git, Mercurial, Jira
• Methodologies: OOP, Design Patterns (GoF, GRASP), XP, Scrum, Agile, Kanban
As an Architect I designed overall structure and built from scratch back end application using microservices principles and GraphQL as facade. Also I facilitated the choice of front end technologies and frameworks.
$7000 / mo
≈ $84000 / year net
Senior Java Engineer
Ukraine · Kyiv · More than 10 years of experience · Advanced/Fluent ·Published 29 April
Ukraine · Kyiv · More than 10 years of experience · Advanced/Fluent ·Published 29 April
- Facilitated seamless communication between technical teams and non-technical stakeholders, enhancing project visibility and aligning development goals with business strategy, led to a 50% improvement in project delivery timelines and a 35% increase in stakeholder satisfaction.
- Spearheaded a mentorship program, boosting team skill levels in technologies such as Java, Scala, Kafka, AWS, resulting in a 40% increase in project delivery efficiency and a 25% reduction in critical bugs. Improved my team's velocity by 30% through strategic process refinement, focusing on eliminating delivery bottlenecks and optimizing workflow efficiency.
- Led the initiative to address and reduce technical debt by 20%, through the adoption of cutting-edge technologies and infrastructure solutions.
- Focused on creating a supportive and inclusive team environment that encourages growth, innovation, and accountability. Implemented regular performance reviews and feedback sessions, contributing to a 45% increase in team satisfaction and retention rates.
both technical skills and career development. This initiative improved team engagement and
productivity by 25%, as measured by project delivery times and employee satisfaction surveys.
- Played a pivotal role in strategically expanding the team, focusing on diversity and complementary skill
sets, enriched our technical capabilities and fostered a more inclusive and innovative team culture.
- Implemented a comprehensive performance management system, aligning project goals with
individual development plans. This system included regular feedback loops and recognition of
achievements, contributing to a 30% improvement in team reliability and service quality.
$6500 / mo
≈ $78000 / year net
Senior Big Data Engineer
Ukraine · Kyiv · 10 years of experience · Upper-Intermediate ·Published 29 April
Ukraine · Kyiv · 10 years of experience · Upper-Intermediate ·Published 29 April
2013 – 2017
- Gathering information from client, parsing and formatting data.
- Managing DWH on top of HDFS.
- Batch loading data from and to DB2, Teradata, MS SQL using Sqoop. Aggregation data with HIVE on TEZ.
- Writing procedures on DB2 and Teradata.
- Workflows creation on Control-M, Informatica and Jenkins.
Ciklum
2017-2020
- Loading data from various sources (External databases, REST API, file systems)
- Create and maintain Data Lake in AWS s3.
- Create and maintain DWH in Redshift
- Parsing and aggregation of d ata, consolidating all sources into final data set.
- Spark function programming to process data and deliver to data scientists, analyzing of data changing.
- Create and maintain workflow pipelines.
Zoolatech
2020 – now
- Loading data from various sources (Kafka, DynamoDB, External Databases)
- Create and maintain end to end ETL pipelines with Airflow
- Create and maintain Data Lake in AWS s3.
- Design and manage DWH in Teradata
- Parsing and aggregation of data
- Create Spark applications to manage changes in Kafka object models schemas, proper updating of huge amount of data in s3.
$4700 / mo
≈ $56400 / year net
Software Engineer
Ukraine · Kyiv · 5 years of experience · Advanced/Fluent ·Published 29 April · In passive search
Ukraine · Kyiv · 5 years of experience · Advanced/Fluent ·Published 29 April · In passive search
- Developing new feature both on front & back end.
- Keeping eye on Junior Developers
- Replacing old services with new ones
2019-2021 - Software engineer in Smacno V Doma.
- Developing back office application
- Design the architecture
- Importing data form exel to database
- Getting first pay check for coding at age of 19
- Ability to withstand meetings.
- Open to learning new programming language.
- ZIO or Cats are more preferable.
- More solution, less meetings.
$1300 / mo
≈ $15600 / year net
Junior Java/Scala Developer
Ukraine · Kyiv · 1.5 years of experience · Upper-Intermediate ·Published 29 April
Ukraine · Kyiv · 1.5 years of experience · Upper-Intermediate ·Published 29 April
I do acknowledge benefits of FP and I do like OOP, so in case I can be flexible to meet project expectations.
I have experience with SQL including MySQL, H2.
My projects included the use of such technologies as Spring Security, Spring JPA, Akka htttp, Play Framework, JDBC and Slick.
Monitored the tickets, which allowed to notice in advance an mislead in the estimation for completing tasks.
$7500 / mo
≈ $90000 / year net
Senior Backend Developer | Node.js
Ukraine · More than 10 years of experience · Advanced/Fluent ·Published 28 April · In passive search
Ukraine · More than 10 years of experience · Advanced/Fluent ·Published 28 April · In passive search
My primary tech stack is:
- TypeScript, Go, Scala, Python
- PostgreSQL, MongoDB, DynamoDB, Redis
- RabbitMQ, NATS, familiar with Apache Kafka
- Rest, GraphQL
- Microservices
- AWS
I'm a responsible person, a good team player, and a quick learner. I have a good understanding of computer science fundamentals, which enables me to learn new programming languages and technologies quickly. And I like teaching and sharing my knowledge.
- Built software products for sale from scratch
- Built an online learning platform from scratch
$3000 / mo
≈ $36000 / year net
Data Scientist / Backend Developer
Germany · 3 years of experience · Upper-Intermediate ·Published 27 April
Germany · 3 years of experience · Upper-Intermediate ·Published 27 April
Scala Backend Developer at Newage, Inc.
Developed reactive microservices in Scala to integrate payment systems for the Cloud Native SAAS platform. Developed RESTful and gRPC API. Worked with Scala, Akka, Apache Kafka, PostgreSQL, Elasticsearch, Kubernetes, CI/CD (Jenkins, ArgoCD).
From October 2022 to Present
Data Scientist Intern at Winstars Technology LLC
• Created semantic segmentation model for time-distributed satellite images. Used UNet + ConvLSTM architecture. Worked with TensorFlow, Pandas, Numpy, Matplotlib, Python.
From April 2021 to June 2022
Backend Developer at Wolkov Consulting, Inc.
• Developed a system of chatbots in Slack and Discord. Worked with Python, DRF, NLP, Docker, GCP.
• Developed JRPC API. Worked with Scala 3, Http4s, Cats Effect, Mongo DB, Docker, Kubernetes, CI/CD.
• Developed the open-source metaprogramming project. Worked with Scala 3.
From July 2020 to April 2021
Full Stack Web Developer at Cruxlab, Inc – Web and mobile development company.
• Developed RESTful API. Worked with Python, DRF, Angular/React, Type Script, HTML, CSS.
• Created and presented ML models to predict the presence of diseases based on patient tabular data.
• Deployed projects to production on AWS.
From January 2019 to September 2019
Freelance Algorithm Engineer at GlobalFreelance.ua
• Tasks/Achievements: 50+/30+ successfully completed C++/Java tasks.
Participant of the 2020 ICPC Southeastern Europe Regional Contest 05/2021
Twice winner (third place) of competitive programming competition “KhCup” 05/2020, 05/2021
Took an active part in many (15+) International and All-Ukrainian scientific and practical conferences. Published 9 articles in publications indexed by SCOPUS 2018 - 2021
Twice winner of All-Ukrainian competition of student research papers in the field of "Transport technologies" 03/2019, 03/2020
Second place winner of competitive programming competition “NURE Code Jam” 01/2020
Third place winner (participants – 300+) of the competition “Samsung It School” 05/2019
Participant of Transformative Business Models Conference (Dubai, UAE) 03/2019
Took part in many (12+) regional competitions in mathematics, computer science and physics since studying in high school. Each time won 1-3 places 2014 - 2017
$6000 / mo
≈ $72000 / year net
Senior Software Developer
Ukraine · Kyiv · 7 years of experience · Intermediate ·Published 26 April · In passive search
Ukraine · Kyiv · 7 years of experience · Intermediate ·Published 26 April · In passive search
Java Developer
Telecom industry
IT-Smartflex (subsidiary of Vodafone) (2021 – till present time)
Support and improvement for an existing project:
• Development and implementation of new functionality
• Fixing bugs
• Code reviewing and refactoring
Use Java 17, Spring, Groovy, OracleDB, Apache Ignite, Kafka, ELK, Kubernetes, XmOnline.
Java Developer
FinTech industry
Genome.eu (2018 – 2021)
Used Java 11, MySQL, Spring, RabbitMQ, ELK, Docker, Consul, Lua\PHP\Bash.
Java Developer (Fullstack)
Advertising Industry
Anotheria.net (2017 — 2018)
Used Java, Groovy, Grails, JS, html/css, Bootstrap, MySQL.
Android Developer
Store translate (2016 — 2017), freelance
Used Retrofit2, SQLite.
NTUU "KPI" , 2009-2015
Faculty of Сhemical engineering
Specialization:
"Computer design equipment of biochemical industries".
Master's degree
I would be happy to consider offers with Scala, Go, Haskell or Kotlin, but I haven't got commercial development experience in these languages.
(this is more of a wish rather than the end goal)
Also it would be nice to get into a project that is involved in data processing.
But this is not absolutely necessary:)
Also:
- Paid sick leave and vacation
- Payment of medical insurance
- Ability to work remotely when needed and flexible schedule
- Informal atmosphere
- Friendly staff
$500 / mo
≈ $6000 / year net
Java Developer
Ukraine · Lviv · No experience · Upper-Intermediate ·Published 25 April
Ukraine · Lviv · No experience · Upper-Intermediate ·Published 25 April
Streaming and message queues).
A project that implements a Java web application representing bus ticket booth.
A project that is a web service which subscribes to a webhook and sends a message via a telegram bot when a request is received.
A project that implements a Java web app for creating, managing and solving puzzles. It allows users
to upload puzzle images, split them into pieces, manipulate the pieces, and solve the puzzle.
Java CLI application for calculating the roots of expressions. Users can enter mathematical
expressions, calculate their roots, and store the results in a database. The program also validates
the correctness of the entered expressions before calculating.
A test project which me and my team developed to participate in hackathon (BEST:: HACKathon (2023)). We
successfully completed it.
More on my GitHub account
$5200 / mo
≈ $62400 / year net
Scala Developer
Ukraine · Kharkiv · 5 years of experience · Upper-Intermediate ·Published 25 April
Ukraine · Kharkiv · 5 years of experience · Upper-Intermediate ·Published 25 April
- Contributed to projects across different domains, engaged in activities spanning the system lifecycle, such as development, deployment, monitoring and providing duty support
- Collaborated with teams of diverse sizes, experience levels, time zones, both locally and remotely
- Specialized in REST microservices primarily using Play/Slick/RabbitMQ combination, leveraging functional libraries like Cats and scalaz alongside with Akka Actors concurrency model
- Experienced in working with diverse databases, ranging from relational systems to analytical platforms, with some NoSQL
- Experienced in CI/CD pipelines using Docker, Kubernetes, and Jenkins.
- Familiar with cloud services, particularly AWS, with some practical experience
- Engaged in continuous learning and exploration of functional side of Scala, with focus on Typelevel stack, while remaining eager to expand knowledge across different areas