Candidates 16
$6000 / mo
≈ $72000 / year net
Senior Java Developer
Portugal · 9 years of experience · Advanced/Fluent ·Published 2 May
Portugal · 9 years of experience · Advanced/Fluent ·Published 2 May
* Top-quality architecture and development skills using the latest version of Java/J2EE, Spring, and Hibernate, Reactive
* Experience with DB Design, Object Oriented Design, REST API Design, and Software Design, Microservice, and Cloud (AWS, Azure, GCP)
* Experience with In-Memory data processing and Message queue handling-based architecture using spring boot, spring integration (Rabbitmq/Kafka/Redis ), and another framework
* Integration and Customization of USA Telecom Billing/CRM systems / Bank system integration
* Implementing lightweight workflow engine and BPM integration with projects .
* Providing a solution and Leading the teams in building a digital bank using 3rd part Integration
* Building SAS omnichannel application that integrated all social media tools.
I excel in crafting top-quality architectures and executing developments using the latest tools and technologies, particularly in Java/J2EE, Spring, and Hibernate. My expertise extends to Reactive programming paradigms, ensuring high-performance and scalable solutions.
*Comprehensive Design Expertise:
My experience encompasses the spectrum of design disciplines, including Database Design, Object-Oriented Design, and REST API Design. I thrive on architecting robust, maintainable systems that stand the test of time. Additionally, I'm well-versed in Microservices and Cloud technologies such as AWS, Azure, and GCP, enabling seamless transitions to modern infrastructure paradigms.
*Innovative Architectural Solutions:
I specialize in crafting architectures that leverage In-Memory data processing and Message queue handling, utilizing frameworks like Spring Boot, Spring Integration (including RabbitMQ/Kafka/Redis), among others. These architectures empower systems with lightning-fast performance and fault-tolerance.
*Leadership in Digital Transformation:
I take pride in leading teams towards transformative goals, such as building digital banks through third-party integrations. My strategic vision coupled with hands-on execution has enabled successful outcomes in challenging projects.
$10000 / mo
≈ $120000 / year net
Sr. Engineering Manger
Portugal · 10 years of experience · Advanced/Fluent ·Published 2 May
Portugal · 10 years of experience · Advanced/Fluent ·Published 2 May
I am passionate about driving innovation and strategic development, leveraging my project management certification and my expertise in cloud migration and monolith decomposition. I have overseen the Kyiv office, leading a team of approximately 25 engineers and promoting a culture of continuous improvement and growth. I have also aligned project management activities and quarterly planning to ensure objectives and KPIs are met, following DORA metrics and maintaining a focus on software quality and customer satisfaction. I am committed to continuous learning and adjustments regarding the latest technical trends, processes, and practices.
$4000 / mo
≈ $48000 / year net
Senior Software Engineer
Portugal · 5 years of experience · Upper-Intermediate ·Published 30 April
Portugal · 5 years of experience · Upper-Intermediate ·Published 30 April
Senior Java Developer
Windmill
Aug 2023Jan 2024
Worked on fintech/crypto domain project, was a part of huge team, implemented a new features and APIs.
08.2021 - 03.2023
EPAM
Middle Java Developer
Worked on 3 projects with fintech domain. Developed a 2 microservices to communicate with GraphQL on Java 9 reactive API. Refactored a legacy code base. Worked with AWS infrastructure such as S3, EC2, etc.
12.2020 - 08.2021
GlobalLogic
Middle Java Developer
Was a part of Agile team on the project with telecommunicates domain. Worked with Kubernetes based on kubectl queries. Refactored a legacy code base. Refactored a Junit and Contract tests. Developed a new features based on Kubernates and Helm.
08.2020 - 12.2020
Proarea
Java Developer
Was a part of small team on healthcare project. Developed a big part of DB based on PostgreSql to process map coordinates data.
02.2019 - 07.2020
Sednor Holdings Limited
Java Developer
Was a key backend developer on e-store. Communicated with English-spoken customer. Integrated a full-text search engine based on Elastic Search with Kibana and Logstash.
$5000 / mo
≈ $60000 / year net
Software Engineer
Portugal · 8 years of experience · Upper-Intermediate ·Published 23 April
Portugal · 8 years of experience · Upper-Intermediate ·Published 23 April
$6800 / mo
≈ $81600 / year net
Java Developer (Full Stack 80/20)
Portugal · 8 years of experience · Upper-Intermediate ·Published 23 April
Portugal · 8 years of experience · Upper-Intermediate ·Published 23 April
- Team leading
- DevOps
- Development of new features;
- Moving architecture design from monolith to microservices;
- Performance troubleshooting;
- Investigate issues (debugging, logs analysis);
- Rebuilding UI;
- Unit tests;
- code review, bug fixing;
- full circle of deployment;
- client support;
- newcomer mentorship;
- Developed SQL - Hadoop-based framework which solves high SQL memory cost problem by myself (full circle of development by 1 developer) and successfully deployed it for clients use.
- Build productive relationships with clients during software support.
Aiming to bring success to the company by designing specific IT solutions that will address technical issues usually encountered in a Java environment.
Size of the project and team do not so match matter. The main point is an interesting and progressive product and solid and professional team.
$6000 / mo
≈ $72000 / year net
Senior Java Engineer
Portugal · 8 years of experience · Upper-Intermediate ·Published 22 April
Portugal · 8 years of experience · Upper-Intermediate ·Published 22 April
Worked on the loan management service (fintech, credit department, 30 million customers) as a Java Engineer.
Responsibilities:
- Developing new feature
- Addressing tech debts
- Involved in each phase of complex technical solutions and assignments (design, development, deployment, maintenance)
- Analysis and alignment of business/technical requirements
- Implementing best practices
- Managing ETLs
- Launching in new countries
- Participated in the SL3, a weekly rotational duty among backend developers, ensuring system reliability and performance
- Facilitated the onboarding process for new employees, providing guidance, resources, and support to ensure a smooth integration into the team.
- Add unit/functional tests
Worked on SBM (business process automation software) and was a part of RPA (Robotic Process Automation) Insights team.
Worked on job aggregator as a pet side project similar to Otta.com
Worked on the shipment tracking product (similar to Aftership and EasyPost).
Undertook a major refactor of the report generation/regeneration job using distributed parallel processing.
Optimized the largest table, reducing its size by 40%.
Performed a major refactor which significantly reduced the load load on database in all aspects (execution time, data transfer, latency, caching, etc.), and enhancing overall application performance.
Designed and developed a migration job for internal use cases.
Designed and implemented an optimization that enabled reading from a replica database instead of the master in 90% of cases for the most recent data.
Designed and implemented a data consistency validation.
Improved an automatic repayment system
- work under B2B contract in Ukraine
$5500 / mo
≈ $66000 / year net
Senior Java Developer
Portugal · 9 years of experience · Upper-Intermediate ·Published 22 April
Portugal · 9 years of experience · Upper-Intermediate ·Published 22 April
10 years of experience in software development related to FinTech, Security, Learning, Pharmaceutical, Entertainment, E-commerce industries etc. Experienced in requirements analysis, creation of new functionality, maintenance and update of existing features for large and complex projects, creating products from a scratch and reengineering monolith applications to microservices.
Skilled in Java, Microservices, Spring Framework, Unit Testing, Hibernate, Maven, Gradle, Requirements Analysis, Agile Methodologies etc.
• Java (7 - 21), Groovy
• Spring Framework: Boot, Data, MVC, REST, Integration, Security, AMQP etc
• JPA, Hibernate
• Microservices
• Build tools: Gradle, Maven, Ant
• Messaging: RabbitMq, Kafka
• Protocols: HTTP, REST, SOAP
• Relational databases: MySql, PostgreSql, MS Sql
• NoSql: MongoDB
• Unit testing: JUnit, Mockito, Spock, Wiremock, Test containers, DB unit
• Cloud: GCP, AWS
• Containers: Docker, Kubernetes
• Servers: Tomcat, JBoss Wildfly
• Java EE: Servlets, JSP, JSTL etc.
• CI / CD: Gitlab, Jenkins, Argo cd
• VCS: Git, Bitbucket, Gitlab
• Methodologies: Scrum, Kanban
Experience in reengineering of large and complex monolith application related to Fintech into microservices.
In my practice there were both cases of creating projects from a scratch (as a standalone developer and as a team member as well) and work on development of existing complex systems in scope of agile teams.
I have a lot of experience in direct communications with the customers and members of a distributed teams along with mentoring of junior / middle developers and newcomers. The customers locations were mostly US, EU and South Africa.
I would prefer to work on backend tasks only. At the current point I would prefer projects with stable processes and cross functional team.
The possibility to communicate with a customer and stackeholders directly I consider as positive. At the same time I have an experience of work with a local communication only.
Please, don't offer me:
1) Projects with frontend tasks.
2) Projects with constant duty on production.
$6000 / mo
≈ $72000 / year net
Lead/Senior Java Developer
Portugal · More than 10 years of experience · Advanced/Fluent ·Published 15 April
Portugal · More than 10 years of experience · Advanced/Fluent ·Published 15 April
I have experience in designing and building large-scale, distributed, multi-threaded, high concurrency enterprise server systems, like Ad servers, stock-exchange, etc.
I have experience working with international customers, experience as a technical leader around 3 years with a teams from 3 to 10 developers.
Also I have Oracle certificates by Java: OCA, OCP, OCE-JPAD, Have 10+ years of experience in developing Web Applications using, Servlets, Spring and Vert.x.
OCAJP 8
OCE-JPAD EE6
I would like to work on a fresh high-load project where I could apply my skills in multithreading and architecture. With a modern technology stack.
$5850 / mo
≈ $70200 / year net
Senior Java/Kotlin Developer
Portugal · 6 years of experience · Upper-Intermediate ·Published 8 April · In passive search
Portugal · 6 years of experience · Upper-Intermediate ·Published 8 April · In passive search
Working experience with Kubernetes, DC/OS, Helm
Worked with cloud reactive solutions.
Also has a small experience with Angular.
* Developed inner tools for simplifying developers life
* Made multi env service without hard linking to specific env and additional jars
$4500 / mo
≈ $54000 / year net
Java Developer
Portugal · 3 years of experience · Upper-Intermediate ·Published 5 April · In passive search
Portugal · 3 years of experience · Upper-Intermediate ·Published 5 April · In passive search
June, 2021 р. – present
============================================
Product: X1
Server for television set-top boxes (more than 30 million users) - streaming cable/IP TV, OnDemand content, DVR functions for your favorite shows, running third-party applications (YouTube, Netflix, AppleTV, Amazon Prime, etc.).
Tech Stack:
Java 7, 11; Maven, Multithreading, GIT, Splunk/ELK/Graphana, Git, Jira, Confluence, Slack
Duties:
- Troubleshooting research, bux fixing
- Member of the Offshore OnCall Support team
Achievements:
- Quickly mastered work on the old and huge multithreading project.
- Found and fixed a number of customer-faced bugs.
- Resolved over 100 investigation issues.
============================================
Product: Smart Configuration Service
The internal web service configures the library metrics collector and system notification configuration.
Tech Stack:
- Java 7,11; Spring Boot, REST Api, PostgreSQLL, Typescript, Angular, Splunk/ELK/Grafana, Slack Webhook API, Git, Jira
Duties:
- Developing new features
- Bug fixing
Achievements:
- became the second responsible person on a project
- improved UI with "welcome page" with additional features
- reworked project to decrease display time on DB requests
- found several elegant solutions during migration from Slunk to ELK logging
- implemented the main new features of several releases.
============================================
Product: Metric Report Service
Service for reporting purposes: gather the necessary information from various sources and
prepare statistical reports for higher management.
Tech Stack:
- Java 11, Spring Boot, ELK, JSON, XML
Duties:
- Lead developer
Achievements:
- improved existing logic with additional features
- decreased the faced bug count
- Quickly mastered work on the old and huge project
- Good skills in joining new projects, interacting between teams
- Detailed code review
- Raised English to a conversational level in a short time
- Acquired knowledge in various areas, in addition to the main activity, due to the large number and variety of tasks managed by the team.
What we would like to avoid is the same monotonous tasks and micromanagement
- 1(current)
- 2