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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 and Cloud, 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

– Collaborating 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
– Developing docker containers and deployed to Kubernetes
– Developing 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
– Creating 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
Tom Potanski

“80+ clients have experienced exceptional results from our IT recruitment and software development services.”

Tom Potanski

Tom Potanski Founding Partner, DevsData

DevsData LLC Reviews 5.0 Rated 5.0 stars
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"The agency led the hiring with a dedicated recruitment team. In the end, the client hired two senior technicians, one from Spain and another from Portugal, greatly enriching its engineering team."
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Sebastian Abdy Saboune
Cofounder & CPO
Twist Solutions, Ltd.
Verified Review
5.0
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"We consider the developers they recommended exceptionally strong from a technical perspective. I can recommend the services of DevsData to all tech companies in need of exceptional tech talent."
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Garik Suess
Cofounder & CTO
Qualifyze GmbH
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5.0
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"It was a pleasure to work with DevsData. They excelled at commitment, communication skills, and time and team management. They were extremely organized and efficient, and they tackled every part of the project (several projects) with the utmost care."
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Steven Haley
Managing Director
Kroll, Inc.
Verified Review
5.0
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"DevsData reached out to us, as we've been looking to grow our engineering team in Europe and Poland. Communicating efficiently and professionally, DevsData made a strong impression with their understanding of the recruitment challenges we were facing."
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Karim Butt
Cofounder & CTO
GlossGenius, Inc.
Verified Review
5.0
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"I really appreciate their ability to adapt to our preferred ways of working, agility and successful delivery."
Tom McGovern's avatar
Tom McGovern
Managing Director
Idealab, Inc.
Verified Review
5.0
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"They have really proved their worth and have shown me that my company’s money is really well spent."
Matthew Wiklo's avatar
Matthew Wiklo
CEO
Epinote
Verified Review
5.0
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"I've been working on several IT projects with DevsData for more than five years. There were many software projects they completed for us."
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Christopher Ting
Senior IT Manager
Verus Analytics LLC
Verified Review
5.0
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"From beginning to end, the cooperation was smooth and contact with DevsData representatives was very easy."
Patrick Lobocki's avatar
Patrick Lobocki
CEO
Roesier, Inc.
Verified Review
5.0
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"From beginning to end, my experience with DevsData was only positive."
Daniel Goebel's avatar
Daniel Goebel
CEO
CoCoHub, Ltd.
Verified Review
5.0
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"Quality control is rare in this line of business, I think this is the secret sauce of their exceptional quality."
Paul Polewicz's avatar
Paul Polewicz
CEO
Reef Technologies
Verified Review
5.0
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"This rapid pace and immaculate organization are what stood out to me most about DevsData."
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Joanna Szymanski
Owner & CEO
Xino Sports LLC
Verified Review
5.0
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"We at Flowr Agency are particularly pleased with the outcomes, notably the superior code quality, speed, and communication. It confidently endorses the agency's services to other marketing firms."
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Loic Moncany
Cofounder
Flowr Agency
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5.0
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"We felt good about our collaboration. They were good people to work with, full of energy, creative, and proactive."
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Christian Cieslak
CEO
Remarkable Ones
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5.0
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"We also recommended DevsData to my business connections as they did a truly fantastic job."
Matthew Lenicki's avatar
Matthew Lenicki
CEO
WebCrafters, Inc.
Verified Review
5.0
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"For DevsData to find four amazing developers so fast - that cannot be just luck."
Adam Zaczek's avatar
Adam Zaczek
Founder
1Security
Verified Review
5.0
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"Our cooperation has been very efficient, and I love it."
Adam Janczewski's avatar
Adam Janczewski
Founder & CEO
Jutro Medical
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5.0
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"Tom and his team showed great dedication to us as client and allowed wellbee to launch an Alpha stage of our online therapy product in under 1 month from absolute scratch. I need to congratulate them on the very good UX and UI design and good communication skills of the whole team."
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Paul Chrzan
Cofounder and CEO
Wellbee
Verified Review
5.0
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"Out of all the vendors we work with, DevsData clearly stands out. The quality of developers they deliver is beyond what we've received from any other vendor, and they've been able to send profile recommendations very quickly. I'm happy to be their reference for other companies from Israel and talk about their recruitment abilities and what they delivered for us - we eventually signed over 19 engineers from DevsData. I'm extremely satisfied with this recruitment process."
Ran Eyal's avatar
Ran Eyal
Program Manager
ZIM
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CEO of Orange Charger LLC,

Ex-Tesla Engineer,

Mentor at YCombinator

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Tailored recruitment process, trusted market expertise.

“DevsData reached out to us, as we’ve been looking to grow our engineering team in Europe and Poland. Communicating efficiently and professionally, DevsData made a strong impression with their understanding of the recruitment challenges we were facing. They designed a tailored recruitment process for our needs. I was impressed with the technical depth of their approach.”

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Karim Butt

Co-Founder & CTO at GlossGenius, Inc.

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Outstanding vendor, 21 engineers hired.

“Out of all the vendors we work with, DevsData clearly stands out. The quality of developers they deliver is beyond what we've received from any other vendor, and they've been able to send profile recommendations very quickly. I'm happy to be their reference for other companies from Israel and talk about their recruitment abilities and what they delivered for us.”

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Ran Eyal

Senior Manager at

ZIM Integrated

Shipping Services Ltd.

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Proactive partner, exceptional results.

“DevsData demonstrated a strong degree of proactivity, taking time to thoroughly understand the problem and business perspective, and continuously suggesting performance and usability enhancements. Their app exceeded my expectations. I've worked with DevsData on numerous projects over the last 3 years and I'm very happy. Being both responsive and honest in communication.”

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