fb-pixel

Location

Poland

Rate

$38  / per hour

Years of experience

14+

About

I am an experienced Senior Java Developer and System Architect with over a decade of experience in developing robust software solutions across a range of industries. My technical expertise encompasses a comprehensive stack including Java, JavaEE, Spring Boot, Hibernate, JPA, and various front-end technologies like React, Angular, and TypeScript. Throughout my career, I have demonstrated a strong ability to lead server teams, design server-side architecture, and manage complex deployments on platforms like AWS and Azure. Beyond my technical acumen, my career is marked by a continuous pursuit of knowledge, evidenced by my PhD studies in Industrial Computer Science from AGH University of Science and Technology. I am passionate about leveraging my deep analytical skills and meticulous attention to detail to solve challenging problems and innovate scalable systems. Whether leading development projects, enhancing system architectures, or guiding teams, I am always eager to apply my skills to facilitate growth and improve efficiency within forward-thinking organizations.

Tech Stack

Java, Angular, JavaScript, Kotlin, React, REST, Spring Framework, Typescript

Experience

  • Implementation of New Features & Bug Fixing: Develop and enhance software applications by adding new features and resolving bugs to improve functionality and user experience.
  • Design of Server-Side Architecture: Create and refine server-side architecture to ensure efficient data handling, scalability, and security of applications.
  • Work Coordination of Server Team: Lead and manage the server development team, coordinating tasks and ensuring project milestones are met on time.
  • Deployments Management: Oversee and manage the deployment of software updates and new releases, ensuring minimal downtime and maintaining system integrity.
  • Technical Guidance and Support: Provide technical expertise and guidance to team members, assisting with complex coding issues and fostering a collaborative work environment.
  • Performance Optimization: Monitor and optimize the performance of applications, identifying and resolving efficiency bottlenecks and ensuring optimal operation under various loads.
  • Preparation of Technical Documentation: Document system architecture, code changes, and deployment procedures to maintain a clear understanding of the application’s framework and operations.

Employment history

Senior Java Developer-System Architect at Evizone January 2014 – present

– Implementing new features and fixing bugs to enhance system functionality and performance.
– Designing and architecting server-side solutions to ensure robust and scalable applications.
– Coordinating the server team’s work to align with project goals and deadlines.
– Managing deployments to ensure smooth and efficient software releases.
– Conducting performance tuning and optimization to address bottlenecks and improve system efficiency.
– Providing technical leadership and mentoring junior developers.

Technology: Java (8-17), Spring Boot, AWS (serverless, S3, DynamoDB, basic EC2 & IAM
management, texttract), REST, Swagger, Hibernate, PostgreSQL, HBase, Lucene, Wildfly,
Lombok

Nitrobox Site Leader July 2019 – January 2020

– Supporting team members with technical knowledge to resolve complex issues and enhance their skills.
– Implementing new features and fixing bugs to maintain and improve the platform’s functionality.
– Designing microservices to support order-to-cash automation.
– Managing the integration of MongoDB, MySQL, OAuth 2.0, RabbitMQ, and Azure services.
– Overseeing Kubernetes (K8) configurations to ensure reliable and scalable deployments.
– Conducting technical reviews and providing guidance on best practices.

Technology: Java (8-11), Spring Boot, microservices, MongoDB, MySQL, OAuth 2.0, RabbitMQ, Azure, K8

Senior Java Developer-Techgarden July 2017- December 2017

– Implementing new features for account-related microservices in the municipal car sharing system.
– Fixing bugs to ensure smooth and reliable operations.
– Configuring and managing Kibana for data visualization and monitoring.
– Utilizing Kafka and Docker for efficient microservices communication and deployment.
– Ensuring system reliability and performance through proactive monitoring and maintenance.
– Collaborating with cross-functional teams to deliver high-quality software solutions.

Technology: Java, Spring, Spring Boot, Spock, REST, microservices, Kafka, Docker, PostgreSQL, MongoDB, GitLab

Senior Java Developer-HSBC October 2013- January 2014

– Implementing new features for the account management web application to enhance user experience.
– Debugging and fixing issues in the messaging system to ensure reliable communication.
– Providing technical guidance and mentorship to less experienced developers.
– Conducting code reviews to ensure adherence to coding standards and best practices.
– Implementing security measures to protect sensitive data.
Technology: Java, JSP, Spring, Oracle, ActiveMQ

Senior Java Developer, Team Leader-Evizone October 2010- September-2013

– Implementing server and database-side requirements to meet project specifications.
– Developing JUnit and integration tests to ensure code quality and reliability.
– Configuring and managing Wildfly server for optimal performance and stability.
– Identifying and resolving performance bottlenecks to improve system efficiency.
– Conducting code reviews and providing technical mentorship to team members.
– Ensuring compliance with best practices and coding standards.

Technology: Java, Java EE, Hibernate, Wildfly,
PostgreSQL, HBase, Lucene, smartGWT, Svn

Assistant-AGH University of Science and Technology October 2011-September 2013

– Teaching courses on Basics of Programming, Programming in Java, and Web Application Technologies.
– Developing course materials and providing guidance to students.
– Conducting practical lab sessions to reinforce theoretical knowledge.
– Assessing student performance and providing constructive feedback.
– Participating in curriculum development and improvement initiatives.

Senior Java Developer-Comarch September 2009- October 2010

– Implementing and maintaining the Portfolio Project, a system for managing IT projects.
– Integrating the system with internal Comarch systems to ensure seamless operations.
– Conducting performance optimization and code refactoring to improve system efficiency.
– Collaborating with business analysts to gather and clarify requirements.
Technology: Java, Hibernate, Swing, GWT, Oracle

Junior Java Developer-Comarch July 2006- December 2009

– Implementing and maintaining the PfP system and Invento knowledge system.
– Conducting R&D activities and developing the rnd.comarch portal.
– Collaborating with senior developers to learn and apply best practices.
– Conducting code reviews and participating in team meetings.
– Developing and maintaining technical documentation.

Technology: Java, Hibernate, Swing, GWT, Struts, Oracle

Education history

AGH University of Science and Technology, Cracow 2009-2013 PhD studies
Faculty of Metal Engineering and Industrial Computer Science, AGH University of Science and Technology, Cracow
Scholarship of Małoposka for PhD Students, Doctus 2003-2008 Master’s degree studies in Applied Computer Science Faculty of Metal Engineering and Industrial Computer Science, AGH University of Science and Technology, Cracow
Specialization: Modeling and Information Technology
Master’s degree thesis: Integration of virtual laboratory with e-learning platform
Graduated with: 6.0 (maximum) ranking

We've delighted 83 clients with our IT recruitment and software development services.

DevsData LLC Reviews 5.0 stars 37 reviews
Powered byClutch logo
Powered byClutch logo
See more testimonials
Similar blind CVs/resumes
Poland

Swagger Developer Resume Sample

Senior Java Software Developer skilled in backend architecture, database management, and team mentoring.
Swagger-icon
Swagger
Angular-icon
Angular
Bash-icon
Bash
Docker-icon
Docker
Git-icon
Git
Hibernate-icon
Hibernate
Java-icon
Java
JavaScript-icon
JavaScript
Kafka
Kubernetes-icon
Kubernetes
Microservices
MySQL-icon
MySQL
Oracle
PL/SQL
Python-icon
Python
Spring Framework
Rate $25  /  per hour
Poland

Work From Home Resume Sample

Senior .NET Developer with expertise in backend architecture, business analysis, and system integration.
.NET-icon
.NET
Angular-icon
Angular
ASP.NET
C#-icon
C#
Microservices
MS SQL
Typescript-icon
Typescript
Rate $15  /  per hour
Poland

Rest API Developer Resume Sample

Full-stack developer with experience in building REST APIs, React front-ends, and integrating cloud services.
REST APIs
API-icon
API
AWS-icon
AWS
CSS-icon
CSS
Express.js-icon
Express.js
Firebase
GraphQL-icon
GraphQL
HTML-icon
HTML
JavaScript-icon
JavaScript
MongoDB-icon
MongoDB
NestJS
PostgreSQL-icon
PostgreSQL
React-icon
React
React.js
REST
Rate $17  /  per hour
Ukraine

Senior Android Developer Resume Sample

Senior Android Developer with expertise in Kotlin, app architecture, and complex backend integration.
Android-icon
Android
AWS-icon
AWS
C++-icon
C++
Git-icon
Git
Java-icon
Java
Jenkins-icon
Jenkins
Kotlin-icon
Kotlin
Mobile-icon
Mobile
Rate $15  /  per hour
UK

C Level Resume Sample

Experienced CTO with 20+ years in AI, data science, and tech leadership, driving innovation, growth, and sustainability.
Management-icon
Management
AWS-icon
AWS
Azure-icon
Azure
C#-icon
C#
C++-icon
C++
CSS-icon
CSS
Elasticsearch
Git-icon
Git
Github
HTML-icon
HTML
Java-icon
Java
JavaScript-icon
JavaScript
Jenkins-icon
Jenkins
MongoDB-icon
MongoDB
PHP-icon
PHP
Project Management
Project Planning
Python-icon
Python
SQL-icon
SQL
Rate $60  /  per hour
Poland

Chief Technology Officer Resume Sample

A results-driven technology executive with over a decade of experience.
Management-icon
Management
.NET-icon
.NET
Angular-icon
Angular
ASP.NET
C++-icon
C++
Docker-icon
Docker
Lead
Project Management
Python-icon
Python
React-icon
React
Rate $30  /  per hour
Poland

Sample COO Resume

A COO with over 20 years of experience in banking.
ERP
CRM
Google Analytics
Jira
Marketing
MS SQL
Oracle
Power BI
Project Management
ServiceNow
Workday
Rate $20  /  per hour
Poland

CEO Resume Sample

A CEO over 15 years of leadership experience.
ERP
Asana
AWS-icon
AWS
CRM
Microsoft Azure
MS Office
Oracle
Salesforce
SAP
Slack
Rate $25  /  per hour
Poland

Board Member Resume Sample

A highly experienced executive with over 20 years of leadership.
MS Office
Asana
ERP
Finance
Jira
Microsoft Excel
Oracle
Project Management
SAP
Workday
Rate $25  /  per hour

I agree to and accept that DevsData LLC will provide better user experience by collecting, analyzing and cataloging information about Internet electronic addresses that I have connected with my devices and about the type of my devices (such as the type and version of software) as well as by making automatic decisions (not involving sensitive data). The agreement applies for the legally binding period, or until either the user or DevsData LLC withdraws from the agreement. Withdrawing from the agreement will result in removing the user's data. Please see our privacy policy.

We use cookies to provide the best experience for you. >More about cookie policyarrow

Book a call with our team

For software development projects, minimum engagement is $15,000.

whatsapp
Prefer email?
Quote mark

Best back-end engineers I've ever worked with...​

“I interviewed about a dozen different firms. DevsData LLC is truly exceptional – their backend developers are some of the best I’ve ever worked with. I’ve worked with a lot of very well-qualified developers, locally in San Francisco, and remotely, so that is not a compliment I offer lightly. I appreciate their depth of knowledge and their ability to get things done quickly. “

Avatar

Nicholas Johnson

CEO of Orange Charger LLC,

Ex-Tesla Engineer,

Mentor at YCombinator

Rebecca Botvin's avatar

Rebecca Botvin Commercial Director

Tom Potanski's avatar

Tom Potanski Manager

Success

Thank you


We'll get back to you within 1 business day.