Candidates 661
$6000 / mo
≈ $72000 / year net
Senior Java Developer
Portugal · 9 years of experience · Advanced/Fluent ·Published yesterday
Portugal · 9 years of experience · Advanced/Fluent ·Published yesterday
* 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.
$1200 / mo
≈ $14400 / year net
Middle Java Backend Developer
Azerbaijan · 1.5 years of experience · Advanced/Fluent ·Published yesterday
Azerbaijan · 1.5 years of experience · Advanced/Fluent ·Published yesterday
Well informed about Agile world.
Participated in Investment project.
Member of Core Mobile Squad which is related with dashboard, sms, notification, content and other core features of Mobile Banking Application.
$7000 / mo
≈ $84000 / year net
Senior Java Developer
Netherlands · 9 years of experience · Advanced/Fluent ·Published yesterday
Netherlands · 9 years of experience · Advanced/Fluent ·Published yesterday
Throughout my journey, I've had diverse experience, which included working on:
- Product for data transformations into a certain structure written in Oracle PL/SQL + Java;
- Big Data IoT platform for processing data from connected vehicles, where tech stack included Scala, Akka, Kafka;
- Java monolithic monsters with complicated business logic with attempts to modernise and loosen coupling;
- ETL pipelines built in Python + PySpark + Kedro;
- Couple of greenfield projects which consisted of microservices built in Java or Kotlin + Spring Boot, which communicated via REST and Kafka (that's also what I'm busy with at my current assignment).
I have found out that I have a deep passion for Java & JVM. I really enjoy looking under the hood, into the lower level concepts, reading the bytecode, analysing the behaviour of JVMs. It's not part of my day-to-day job, but I love engaging with the Java community, sharing knowledge at the conferences or through blogs.
The main reason for looking for a change is the intention to move to Sweden and live closer to nature. I would love any remote possibilities, and I'm happy to travel when needed.
$5000 / mo
≈ $60000 / year net
Senior Java Developer
Estonia · 6 years of experience · Advanced/Fluent ·Published yesterday
Estonia · 6 years of experience · Advanced/Fluent ·Published yesterday
Throughout my career I developed services for various domains such as Telecommunication, FinTech, Banking and Insurance.
I have extensive knowledge and experience of DDD, Clean Architecture, Distributed transaction management, lower and higher level systems designs.
I also have hands on experience with Kubernetes, Docker, Terraform and AWS.
$4000 / mo
≈ $48000 / year net
Java backend
Armenia · 5 years of experience · Advanced/Fluent ·Published yesterday
Armenia · 5 years of experience · Advanced/Fluent ·Published yesterday
Experience in handling over 10 projects that involve intricate and interconnected web-based data systems. These systems have various components, including complex data input, data representation through charts and graphs, financial analysis, standard and customized reporting, and support for offline and remote data entry.
Worked on designing and implementing web applications using Spring Boot and Angular frameworks.
Contributed to the creation of the architecture and collaborated with the team to assist in selecting appropriate design patterns.
Optimized application performance according to specific customer requirements.
Designed, implemented, and maintained web applications considering both frontend and backend.
Mentored junior developers on the team, providing guidance on best practices and helping them to improve their skills.
Integration with various third-party APIs.
Development of mobile apps for offline data entry that can later be submitted and integrated with an online system.
$550 / mo
≈ $6600 / year net
Java Developer
Ukraine · No experience · Advanced/Fluent ·Published yesterday
Ukraine · No experience · Advanced/Fluent ·Published yesterday
$2200 / mo
≈ $26400 / year net
Java Developer
United Arab Emirates · 3 years of experience · Advanced/Fluent ·Published yesterday
United Arab Emirates · 3 years of experience · Advanced/Fluent ·Published yesterday
Symphony Solutions (Sep 2022 – present)
E-commerce, Airline PSS
Java 8, Spring Boot, REST/SOAP, XML/XSD, Tomcat/JBoss, JUnit4, Oracle/Mongo DB, Datadog, Jenkins, Bitbucket
- Development of new features with custom business logic tailored for major low-cost European airlines to provide tickets and ancillaries prices/availability and ensure aftersales based on the purchase stage
- Achieved up to 20% reduction in request processing time through meticulous database query optimization and AWS ASG configuration
- Proficiently managed SOAP/XML protocols for seamless integration
- Engineered custom Pre- and PostProcessors (called "Business Rules Engine") for dynamic modification of pricing, availability, and inventory systems, enhancing communication efficacy
Junior Java Software Engineer
Antosh&Co (Oct 2021 – Aug 2022)
Healthcare (Stress and Craving research, grant by USA Government)
Java 11, Spring Boot/Core/Data/Security, PostgreSQL, AWS Cognito,
REST, Docker, JUnit5, Flyway, AWS CodeBuild + Jenkins
- Orchestrated the seamless transition of existing functionality from monolithic architecture to microservices, showcasing adeptness in
code refactoring, logical separation, and database restructuring
- Successfully developed new API version, ensuring uniformity in handling disparate front-end clients - iOS mobile applications for
patients and a web portal for doctors
- Achieved 80%+ test coverage across the entire codebase
meticulous database query optimization and AWS ASG configuration
Previous project: - Achieved 80%+ test coverage across the entire codebase
Proficient in Spring and Hibernate frameworks, along with REST and SOAP protocols, I am adept at crafting reliable and scalable solutions.
Committed to fostering a culture of teamwork, I strive to align individual efforts with the team's overarching goals, driving toward shared success and sustained innovation.
$5000 / mo
≈ $60000 / year net
Middle Java Developer
Ukraine · Kyiv · 7 years of experience · Advanced/Fluent ·Published yesterday
Ukraine · Kyiv · 7 years of experience · Advanced/Fluent ·Published yesterday
$6000 / mo
≈ $72000 / year net
Senior Java Developer
Ukraine · Kyiv · More than 10 years of experience · Advanced/Fluent ·Published yesterday
Ukraine · Kyiv · More than 10 years of experience · Advanced/Fluent ·Published yesterday
I am a Java Developer, since 2013, and I'm looking for new opportunities! All my experience are described below.
Project type experience (projects with links will be available in a CV):
FinTech
Exchange/Currency Marketplaces
High load
BigData
Smart crawlers
Aggregators
Advertisement platforms
3d-party integration platforms
Online help desk chats (with possibility ti integrate it with any web app/website)
Exchange bots
Crypto currencies
CRMs
Mobile Apps
Billing automatisation systems
"Smart-city" system prototype
WebApp Monitoring systems
PDF Creator (not a name)
Meeting app
etc.
___________________________________________________
Roles on projects (as a part of a team mainly):
backend (main)/frontend (no design/creation from zero, just refactor/modify existed)
Junior Java Developer (~1 year)
Middle FullStack Developer (in team/single dev on project) (~2,5-3 years)
Senior Java Developer (~6 years, with 2 years shared with TeamLead Position included)
TeamLead (few years ago, on 2 projects, not preferable role, but possible) (~2 years)
Had a successful experience in project design and architecture, from zero and already existing project update/modification, but not as main role.
_____________________________________________________
Technologies used (all experience, mixed):
Java Core (10 years)
Java EE (3 years, before Spring)
Multithreading/Concurrency (8 years)
Spring/SpringBoot 2+ (2/5 years)
Hibernate (as a part of Spring/SpringBoot ORM)
JavaScript/jQuery (1 year both)
AngularJS(3 years)
NodeJS (3 years)
HTML/CSS (6 years)
REST/WebSockets (8/2 years)
Apache Kafka/RabbitMQ (3/1 year(s))
Maven (8 years),
Gradle (2 years)
Jenkins (5 years)
Git (7 years)
SVN/Mercurial (1/2 year(s))
Tomcat (main)/other web servers (10 years)
Docker, Kubernetes (4 years)
AWS/Azure (2/1 year(s))
MongoDB/CassandraDB (3/1 year(s))
MySQL/MS SQL/PostgreSQL (4/1/3 year(s))
SOA:
Monolith (layer)/microservices (5/5 years)
UNIX
Agile/Scrum
Kanban methodologies
Creation (interview, hire, teaching and mentoring) whole team, that works till now with integration platform. (Not technical, more as Soft-skills/Management skills representation)
Development of a few huge, aggregator-like and crawler (crawlerto fill data to that aggregators) applications, from zero till production and support it.
From junior grade, was a part of open source community, that provide some public products, like www.moskito.org, and dome internal products, that was used our team in commercial job, integration with noSQL databases, creating some constructor of any size and load webapps, etc. It is hard to describe something as my own achievement, that was created by whole team/teams.
My own achievement is that I was a useful part of those teams.
$8000 / mo
≈ $96000 / year net
Senior Software Engineer
Ukraine · 8 years of experience · Advanced/Fluent ·Published yesterday · In passive search
Ukraine · 8 years of experience · Advanced/Fluent ·Published yesterday · In passive search
The primary stack includes Java, Spring, MyBatis, SQL, K8s, i.e. complete set of tech to build a back-end service. But there are also Go, Node.js, PHP, and front-end on my list. These are the ones I can easily switch to if needed.