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Location

Poland

Rate

$40  / per hour

Years of experience

9+

About

I am an experienced, agnostic developer with a diverse background in multiple programming languages, including Java, Go, and NodeJS. My primary areas of expertise are in Microservices Architecture, Event and Messaging, and Distributed Systems. I have extensive experience across the complete product development lifecycle, from gathering requirements and analysis to development and deployment. Recently, I have worked as a Team/Tech Lead, where I successfully led and mentored teams to deliver high-quality programs and applications for prominent clients in the Media and Telecom industries. My technical proficiency includes Java, Spring Boot/Cloud, Angular/React, AWS, Kubernetes, and more. During my tenure at Pretius Sp. z o.o., I played a pivotal role in designing and implementing new services and functionalities while collaborating in a team environment to produce top-tier applications. At AND Digital, I led teams working on projects for major banks such as Capital One and Lloyd’s, focusing on microservice development, adopting new deployment tools, and coaching team members. My earlier roles at EY GDS Sp. z o.o. and Asseco Data Systems S.A. involved developing integration solutions, blockchain-based insurance platforms, and billing systems. I possess a strong foundation in both backend and frontend technologies, SQL and NoSQL databases, and DevOps practices, making me a versatile and valuable asset to any development team.

Tech Stack

Java, Angular, AWS, MySQL, Spring Framework

Experience

  • Lead and mentor development teams to ensure high-quality delivery of projects. Provide guidance and support to team members, fostering a collaborative and productive work environment.
  • Design, develop, and implement microservices architectures using technologies such as Java, Spring Boot, and AWS. Ensure scalability, reliability, and efficiency in the deployment of microservices.
  • Oversee the complete product development lifecycle, from gathering requirements and conducting analysis to development, testing, and deployment. Ensure all stages of development align with business goals and technical standards.
  • Introduce and adopt new technologies and deployment tools within projects, such as Docker, Kubernetes, Kafka, and gRPC. Enhance system performance and streamline development processes through innovative solutions.
  • Develop and integrate RESTful APIs and services, ensuring seamless communication and data exchange between systems. Utilize technologies like Flask, NodeJS, and Spring Boot to build robust and efficient backend solutions.

Employment history

Tech Lead / Senior Developer, Pretius Sp. z o.o., Warsaw June 2020 - present

– Collaborated in team environment to produce high-quality programs and applications for one of the biggest Media and Telcom companies in Poland
– Leading and mentoring members of my team
– Designing, and implementing new services and functionalities
– Performing a key role in every aspect of creating a product. From gathering requirements, through analysis and development, to deploying to production.

Tech Stack: Java 8/11, Spring Boot/Cloud, Angular/React, MyBatis, PostgreSQL/MySQL/Oracle, AWS, Kubernetes, Spock, OAuth, REST/SOAP, Kafka/RabbitMQ

Tech Lead / Senior Product Developer, AND Digital, London December 2018 - June 2020

Capital One:
Project for one of the biggest USA bank
Team/Tech Lead in a team responsible for microservice development with Java, Spring Boot and AWS
Key role in adopting a new deployment tool in the project
Coaching new members of the team

Lloyd’s:
Project for one of the biggest UK bank
Team/Tech Lead in Spring 5 Reactive Service with Kafka
Developed docker containers and deployed to Kubernetes
Developed unit and E2E tests using Spock Framework

Internal:
Research and implementation of gRPC in Go
Tech/Team Lead in Slack aggregation tool project with AWS Lambda and DynamoDB
Created Terraform scripts for provisioning infrastructure

Tech Stack: Java 8/Go/NodeJS, Spring Boot/Cloud, MySQL/DynamoDB, AWS, Spock, Kubernetes, Kafka, REST/gRPC, Terraform

Software Developer, EY GDS Sp. z o.o., Warsaw May 2017 - November 2018

– Responsible for the development of integration through SOAP with external systems in Guidewire Suite
– Key role in first Marine Insurance platform based on Blockchain written in Kotlin, with REST webservices Main role in development of test automation in Spock framework
– Development of Middleware in nodeJS and Frontend in AngularJS

Tech Stack: Java8/Kotlin/NodeJS, Spring Boot, Angular, Spock, REST/SOAP

Programmer, Asseco Data Systems S.A., Warsaw 2015-03 - 2017-04

– Development of a billing system based on Java SE and PL \ SQL for heating sector and water industry, like: Veolia, Tauron
– Design and implementation of new modules to the software
– Maintenance and optimization of existing code Introduction of new technologies into the program, among others, JavaFlex
– Support service requests. Determining the scope of the notification of the client and the distribution of tasks for the development team

Tech Stack: Java8, Oracle

BMS Specialist, Lennox Polska Sp. z o.o., Warsaw December 2011 - August 2014

– Making BMS and their projects
– Selection of automation for BMS
– Technical assistance in the field of operating and maintenance of products
– Training in the use of BMS
– Development of software for BMS (for example: a Flex based application on linux embedded computer)

Tech Stack: C++

3D measurement specialist, OGX|OPTOGRAPHX, Warsaw April 2009 - May 2011

– Developing software for 3D scanning in C++ and OpenGL
– Digital documentation of ancient monuments
– Implementation of computational algorithms for 3D cloud of points

Tech Stack: C++, OpenGL

Education history

Warsaw University of Technology, Warsaw September 2005 - September 2010 Department of Mechatronics, Automation and Robotics
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