Bartosz J.

About Me

Skilled and qualified Java Senior Developer with close to 15 years of IT industry knowledge, of which 10 years developing applications using Java-related technologies. I also have hands-on experience in working with JavaScript, both front-end and server-side. I strive to successfully develop and support projects across the entire software development cycle, preferring a remote environment as it allows me to show my strengths.

Frontend

Backend

Database

DevOps

Workflow

Other

Work history

UpStack
UpStack
Senior Software Engineer
2020 - Present (5 years)
Remote
  • Create and develop innovative software solutions for different clients across a broad range of industries.

  • Participate in scrums consisting of cross-functional teams, both software and hardware.

  • Ensure that features are being delivered efficiently and on-time.

Crossover
Crossover
Java Chief Architect
2017 - 2020 (3 years)
Remote
  • Worked on the analysis, design, development, implementation and maintenance of applications using Java technologies.

  • Involved in requirement analysis for various projects, defining user expectations for software products and business needs of the client.

  • Deployment of web and enterprise java components, ensuring quality assurance and debugging.

Sonalake
Sonalake
Senior Software Engineer
2016 - 2017 (1 year)
Remote
  • Worked as a consultant developer for Travelport Digital, involving software design and development using Java technologies.

  • Maintained and provided production support for the application, bringing new insights and debugging any issues.

  • Produced releases of software components and detailed design documentation.

IT Kontrakt
IT Kontrakt
Senior Software Engineer
2014 - 2015 (1 year)
Remote
  • Acted as a software consultant for Roche, including software design and development using Java and JavaScript technologies.

  • Defined development tasks and provided time estimates for project completion, coordinating tasks with other developers.

  • Complied with programming standards to ensure development consistency. Acted as a client contact and offered support when needed.

Currency One
Currency One
Senior Software Engineer
2014 - 2014
Poland
  • Worked in research and development using Java and JavaScript for one of the biggest companies on the online currency exchange market in Poland.

  • Worked on the next version of the company's main product, closely collaborating with a team of developers and designers.

  • Planned and executed tests to ensure all code meets the necessary requirements.

Inteligo Financial Services
Inteligo Financial Services
Java Software Engineer
2012 - 2013 (1 year)
Poland
  • Provided software design, development and maintenance using Java technologies for companies in the financial sector.

  • Created and developed an internal project for the PKO Bank Polski - Poland’s largest bank.

  • Supported projects across the entire software cycle, ensuring that business needs are met.

Sii
Sii
Java Specialist
2011 - 2012 (1 year)
Poland
  • Acted as a project consultant and Java specialist for Roche, one of the biggest pharmaceutical companies in the world.

  • Provided customer contact and support throughout the project, ensuring team goals and business outcomes are met.

  • Gathered requirements and created a scalable and highly available software solution.

Advanced Digital Broadcast
Advanced Digital Broadcast
Software Integrator / Team Leader
2009 - 2011 (2 years)
Poland
  • Led a small team of software developers for a high-quality full system hardware and software solutions for TV operators.

  • Provided software integration and development using ANSI C and Java, as well as management of software releases.

  • In charge of client communication and performing field trials on site. Analyzed and designed program changes, as well as reviewed and updated documentation.

Osmosys Technologies
Osmosys Technologies
Software Integrator
2007 - 2009 (2 years)
Poland
  • Executed embedded software porting and integration using ANSI C for a leading innovator in the development of open standards interactive TV solutions.

  • Provided release management, involving all stages of the software release from development and testing to deployment.

  • Assisted clients with support issues and troubleshooting, recommending changes to improve application processes.

Projekty Bankowe Polsoft
Projekty Bankowe Polsoft
JEE Developer (intern)
2005 - 2007 (2 years)
Poland
  • Involved in all programming aspects, including business, presentation and data access. Worked on the internal workflow engine development.

  • Created highly detailed and researched solutions, reviewed other engineers' code and tested software applications.

  • Identified areas for modification in existing programs, determining operational practicality.

Showcase

Back-End Developer - TripSource
Back-End Developer - TripSource
  • Mobile and web application for business travel companion.

  • Provides instant access to trip details, travel notifications, and risk alerts.

  • Successfully deployed the server-side component and achieved successful iteration and production deployments.

Back-End Developer / Architect - Internal project for Genentech
Back-End Developer / Architect - Internal project for Genentech
  • Automated plate lifecycle management for laboratory experiments.

  • Developed a user-friendly interface and automated processes to streamline lab operations.

  • Implemented Domain-Driven-Design and feature flags for enhanced software development and maintainability.

Software Engineer / Architect - Optiva Revenue Management Suite
Software Engineer / Architect - Optiva Revenue Management Suite
  • ORMS is a billing and charging engine with advanced features for campaign management, real-time monetization, and subscriber management.

  • It offers seamless integration across multiple channels (CRM, order management, product catalog) and provides a streamlined concept-to-cash journey.

  • The project was successfully migrated to a Cloud environment, supporting up to 10M subscribers and utilized Java, Oracle DB, and SOAP technologies.

Software Engineer / Architect - Intranet Portal
Software Engineer / Architect - Intranet Portal
  • Development of an Intranet starting page for internal bank employees.

  • Creation of a content management solution with widgets for data, comments, and more.

  • Design and implementation of a user-friendly interface and server-side components.

Education

Education
Sun Certified Programmer for Java Platform, Standard Edition 6
Sun Microsystems
2009 - 2009
Education
MSc. in Computer Science
Poznan University of Technology
2005 - 2007 (2 years)
Education
BSc. in Computer Science
Poznan University of Technology
2002 - 2005 (3 years)