Candidates 41
$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.
$8000 / mo
≈ $96000 / year net
Principal Engineer / Senior Engineer / Architect / VPE
Ukraine · More than 10 years of experience · Advanced/Fluent ·Published 29 April
Ukraine · More than 10 years of experience · Advanced/Fluent ·Published 29 April
Stateful streaming,
Resources Utilization Optimization,
API design,
Domain representation,
Complexity breakdown,
Logic unification,
Scala 7+
Java 15+
Total 30+
Assembler, C, embedded
$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
$7000 / mo
≈ $84000 / year net
Senior Scala Developer
Poland · More than 10 years of experience · Upper-Intermediate ·Published 25 April
Poland · More than 10 years of experience · Upper-Intermediate ·Published 25 April
Passionate and experienced software engineer with a proven track record of delivering software.
Skilled in requirements gathering, software design, prototyping, software development as well as troubleshooting production issues, performance optimization. Proficient in various technologies as well as software development methodologies. Mainly interested in back-end and database management systems. Able individual contributor who is also a team player and able to lead others by example.
Improved performance of one of the services by a factor of 1 thousand. Influenced architecture change that allowed new reports to be implemented much faster. Used code generation approach successfully in different projects saving time and money.
Only backend. 9k for team leader position.
$7000 / mo
≈ $84000 / year net
Scala Developer
Poland · 7 years of experience · Advanced/Fluent ·Published 23 April · In passive search
Poland · 7 years of experience · Advanced/Fluent ·Published 23 April · In passive search
$4000 / mo
≈ $48000 / year net
Data Engineer
Azerbaijan · 6 years of experience · Upper-Intermediate ·Published 20 April
Azerbaijan · 6 years of experience · Upper-Intermediate ·Published 20 April
I'm a Data Engineer with a total of 6 years of
experience in software development in the banking domain and
2 years of experience in Data Engineering.
Technical stack:
- Apache Spark, Pyspark, Apache Nifi, Airflow, Kafka
- Python (Flask), Scala (Akka), Java
- Kubernetes, Docker, Hadoop
- MongoDB, PostgreSQL, BigQuery, Minio
Last workplace responsibilities:
- As part of a team of 4 data engineers, worked to provide data to 2 data scientists.
- Developed ETL pipelines using Apache Nifi, and Apache Spark, and orchestrated them using Apache Airflow. Thanks to this, data scientists quickly received data for further analytics and model building, reducing the time to provide results to the business
- Automated the deployment of ETL pipelines using GitLab CI/CD, which made it possible to quickly fix errors and deploy new ETL pipelines.
- Built a GPU model training environment for a chatbot development project using Gitlab CI/CD and Docker and then Kubernetes. This allowed data scientists to quickly deploy changes to the chatbot model.
- Integrated the chatbot with internal banking systems, and developed plug-ins for it in Python. Also engaged in debugging various issues, working with colleagues from other departments. Thus, I identified critical errors in other bank systems that affected the work of the chatbot.
I am looking for a Data Engineer or a Backend Engineer position, I want to work with Apache Spark, Python, Scala, or Java, both on-premise and clouds. I don't want to work with reporting.
$6500 / mo
≈ $78000 / year net
Scala developer
Ukraine · 6 years of experience · Advanced/Fluent ·Published 19 April
Ukraine · 6 years of experience · Advanced/Fluent ·Published 19 April
Improving Spark job performance, identifying and eliminating bottlenecks, profiling service, monitoring it's health, resolving issues
$7000 / mo
≈ $84000 / year net
Senior Software Engineer
Poland · 7 years of experience · Advanced/Fluent ·Published 19 April
Poland · 7 years of experience · Advanced/Fluent ·Published 19 April
Currently, I am working as a Scala backend developer, specializing in cloud-native microservices. I also hold the position of Technical Lead. In this role, I successfully led a high-impact project overseeing the construction of a scalable, high-load system for ingesting, processing, and delivering contextual data. I'm working with Cats and FS2 Streams.
$1000 / mo
≈ $12000 / year net
Java Devoloper
Ukraine · Krivij Rіg · 5 years of experience · Intermediate ·Published 18 April
Ukraine · Krivij Rіg · 5 years of experience · Intermediate ·Published 18 April
C++: 0.5 years
Scala: basic level
Free Pascal: 3+ years :)
Android SDK 4+ years
Spring Boot 1+ years
LibGdx Developed my own 3D game, but eventually switched to Unity
I also made a script that builds the project itself, without Android studio, this means that you can easily build the application on other devices
$5700 / mo
≈ $68400 / year net
Scala/Java, Python/ML developer
Ukraine · 10 years of experience · Advanced/Fluent ·Published 13 April
Ukraine · 10 years of experience · Advanced/Fluent ·Published 13 April
Languages: Scala, Java, Python, JS, also Ruby, C++, PHP, Bash.
Certifications: AWS Solutions Architect - Associate, TensorFlow Developer.
My work is analysis, design, development, maintenance, deployment and monitoring of apps. In terms of code, it’s also test coverage, CI/CD, compatibility maintenance, algorithmic correctness/efficiency, and refactoring.
Overall, my experience includes back-end, front-end, AI, mobile, game, algorithm, cloud, network development, video/image/audio/text processing, building distributed and real-time systems.
Domains I’ve worked with: telecommunication, e-commerce, finances, IoT, advertising.
Here's a description of one of the latest projects:
Search engine for an online store.
I worked on:
- Scala + ElasticSearch search service
- Ruby admin tool backend+frontend for configuration of the search service
- Python search quality evaluation script + interactive report in JavaScript/HTML
Responsibilities:
- core contributor to all 3 projects (search service, admin tool, search quality evaluation script)
- performed a lot of research
- implemented the hardest/algorithmic parts of the system
- designed and implemented most of new improved architecture of the search backend service
- performed code review and provided some training for other developers
- conducted a few job interviews, prepared coding tasks for skill assessment
- set up code coverage reporting, refactored a lot of code, added a lot of unit tests, took care about fail-safety and backward compatibility
- quickly learned languages and tools for the projects: Ruby, Python, and a bit of Go for load testing with K6; worked a lot with ElasticSearch and Lucene, learned Apache Spark and Apache Beam
Technologies:
Scala, Ruby, Python, JavaScript, microservices, ElasticSearch, Lucene, Kibana, Redis, Apache Spark, AWS Lambda, S3, SQS, CircleCI, Terraform, Datadog, SBT, Linux, macOS, Okta OAuth