Robert Wawrzyniak

Fullstack Developer

Avatar placeholder
Chorzów, Poland

Experience

Jun 2025 - Present
8 months

Fullstack Developer

Equinix

  • Backend development with Java, micronaut
  • Frontend development with react.
Nov 2024 - May 2025
7 months

Fullstack Developer

Northmill Bank

  • Backend development with .NET8
  • Frontend development with react and Typescript
  • Designing distributed locking system based on Dynamo Db
  • Implementing support for transactions in Dynamo Db
  • Hosting solution on AWS, infrastructure as code with CloudFormation
  • Developing application according to Domain Driven Design methodology in microservices environment
Jul 2023 - Sep 2023
3 months

.NET and ReactJs Fullstack Engineer

Gulp

  • Development of application for managing safety alerts in buildings
  • Development of authentication with Azure Active Directory via oauth2 protocol and msal library
  • Implementing backend with .NET 6 and ASP .NET WebApi
  • Connecting to GraphQL api of screen cloud
  • Implementing frontend with react
  • Implementing CI/CD pipelines with Azure Devops
  • Hosting system on Azure
May 2023 - Oct 2024
1 year 6 months

Fullstack Developer

Hays

  • Backend development with .NET8 and Python
  • Frontend development with react, Typescript and Webcomponents
  • Hosting solution on Azure and Google Cloud Platform
  • Developing application according to Domain Driven Design methodology
  • Implementing OCR and automatic document parsing functionality with Azure Cognitive Services and Google Cloud Platform document AI
  • Training ML models to extract information from documents
Feb 2023 - May 2023
4 months

Frontend Developer

Reichhart

  • Development of WebComponents library for use in application
  • Integrating WebComponents into ASP .NET MVC application
Jan 2023 - Apr 2023
4 months

.NET and ReactJs Fullstack Engineer

Gulp

  • Development of application for managing meeting room statuses
  • Development of authentication with Azure Active Directory via oauth2 protocol
  • Implementing backend with .NET 6 and ASP .NET WebApi
  • Implementing frontend with react
  • Implementing CI/CD pipelines with Azure Devops
  • Hosting system on Azure
Mar 2022 - Apr 2023
1 year 2 months

Fullstack Developer

Gulp

  • Development of API with .NET 6
  • Development of web applications frontend with react and Angular
  • Maintaining cloud infrastructure in Azure and AWS
  • Development of CI/CD pipelines with gitlab
Nov 2021 - Jan 2022
3 months

Frontend Developer

Gulp

  • Programming with Angular 13 frontend for application for processing billings with PayPal
  • Integrating with Java API written by another team
Jun 2021 - Mar 2022
10 months

Software Architect

Mentor Graphics

  • Development of rest api services with C# ASP .NET Core and kotlin ktor
  • Programming infrastructure with HashiCorp Terraform
  • Aiding start of new project – application for gathering data on electrical components from manufacturers
Apr 2021 - Mar 2022
1 year

NodeJS Software Engineer

Gulp

  • Integration of existing NodeJS application with Sharepoint through MS Graph API
  • Development of authentication with Azure Active Directory via oauth2 protocol
  • Refactoring of existing application in order to apply ports and adapters architecture
  • Coding nodeJS scripts for data migrations between systems
  • Analysis and elimination of possible security threats
  • Configuration of CI/CD pipelines with Azure Devops
Apr 2020 - May 2021
1 year 2 months

Lead Software Engineer

Hyland

  • Development of framework for e2e tests basing on the cypress
  • Development of highly extensible low code framework for creating web applications based on microfrontends approach (web elements)
  • Development of the web applications with Angular10, TypeScript
  • Hosting solution on AWS
  • Development of REST api with ASP .NET Core
  • Development of CI/CD pipelines with Jenkins and groovy
  • Setting up application environment with docker containers and kubernetes
Apr 2019 - Mar 2020
1 year

Lead Software Engineer

SopraSteria

  • Working as a fullstack .net programmer on application for visualization of 3D human organs models with Microsoft HoloLens 2 glasses for clinical purposes
  • Designing architecture of the system basing on Azure tools and microservices approach
  • Development of authentication mechanism based on Azure Active Directory
  • Development of frontend with Angular7, React, CSS3
  • Development of REST api services in .NET Core 2.2
  • Working with non-sql databases – CosmosDB and Azure Table Storage
  • Development of CI/CD with azure devops
  • Development of web application based on Umbraco CMS
  • Development of data integration tool between Sharepoint and Episerver portals
  • Mentoring younger team mates
Dec 2018 - Mar 2019
4 months

Senior .NET Programmer

Volkswagen Financial Services

  • Development of new features
  • Maintenance of the existing software library and fixing bugs
  • Refactoring of legacy code and application of SOLID principles
  • Improving architecture of legacy applications
  • Supporting library users and resolving their issues
  • Maintenance of a library for SSO authentication with Windows Federated Authentication over ADFS
  • Development and maintenance of WPF desktop applications
  • Development of Powershell scripts for system administration purposes
  • Working in multinational environment with german as the main language
  • Working on integration with SAP
  • Working with CI/CD made on TFS
Jul 2017 - Nov 2018
1 year 5 months
Lorem ipsum dolor sit amet

IT Kontrakt

  • Working as a member of scrum team
  • Development of single page applications
  • Developing complex frontend with Angular 4-6
  • Writing unit tests for frontend with jasmine
  • Developing authentication mechanism with Thinktecture IdentityServer 4
  • Developing authentication with Microsoft Active Directory B2C
  • Working with thermal printers
  • Deployment on Azure
May 2016 - Jun 2017
1 year 2 months

Senior .NET Programmer

ABB

  • Maintenance and development of an existing software for power transformer calculation
  • Working as a member of scrum team
  • Programming in C# and VB .NET
  • Refactoring legacy code
  • Developing desktop application with WPF, Caliburn Micro, Castle Windsor
  • Preparing unit tests with Microsoft libraries and Moq
  • Designing software for solving complex mathematical problems
Jul 2015 - Feb 2016
8 months

IT Consultant

O&S Computer-Soft

  • Designing web application interfaces based on AngularJS
  • Designing authentication and authorization management within web applications
  • Preparing installers for desktop applications
  • Preparing windows batches for tasks automation
  • Solving the crucial technical problems that occurred during development
  • Development of authorization mechanism with Active Directory
Jun 2014 - Apr 2016
1 year 11 months

.NET Programmer, Architect

ING Bank Śląski

  • Developing and designing multitier sophisticated system for bank
  • Being fully responsible for whole software producing life cycle till delivering product to customer
  • Developing web applications with ASP .NET MVC, jQuery, JavaScript, Bootstrap, CSS, HTML
  • Developing client application with WPF
  • Developing web services with ASP .NET MVC WebAPI and WCF
  • Developing workflows with WWF
  • Entity Framework used for connection to database
  • Programming in PL/SQL for Oracle and in T-SQL for MS SQL databases
  • Implementation of Inversion of Control pattern with Autofac
  • Preparing unit tests with Microsoft libraries and Moq
  • Management of Git repository and Continous Integration system built on Jenkins
  • Managing small developers team (2 programmers)
  • Development of authorization mechanism with Active Directory
Jun 2013 - May 2014
1 year

.NET Team Leader

Clifford Thames

  • Management of 3 .NET developers team
  • Developing web applications in ASP .NET WebForms, ASP .NET MVC
  • Designing responsive layouts with jQuery, Bootstrap and CSS
  • Developing web services with WebAPI and WCF
  • Developing sophisticated engines for persisting data to database with EntityFramework for automatic data mapping and creation of automatic queries
  • Designing multitier applications
  • Implementing single sign on solution with Thinktecture Identity Server 2
  • Publishing code for other projects in form of Nuget packages
  • Programming MS SQL Server 2008 with T-SQL
  • Application of Test Driven Development and agile methodologies
  • Assuring very high unit test coverage with NUnit and Moq
  • Implementation of Inversion of Control pattern with Autofac
  • Implementing logging with log4net
  • Preparing batch and power shell scripts.
Dec 2012 - May 2013
6 months

Frontend Programmer

Joanneum Research Forschungsgesellschaft mbH

  • Development of web application with use of jQuery, jQuery-UI and HTML5 for graphical analysis of videos
  • Development of JavaScript controls for precise data analysis
  • Working as the only developer in the project, designing architecture of the application
  • Working in international environment, gathering requirements
Oct 2012 - Oct 2015
3 years 1 month

.NET Technologies Trainer

Altkom Akademia

  • Leading professional trainings in following areas: C#, WPF, XAML, Prism, WCF, ASP .NET WebForms, ASP .NET MVC, EntityFramework, jQuery, AngularJS, AJAX, T-SQL, Visual Studio 2013, Visual Studio 2010, TypeScript, Twitter Bootstrap
Oct 2011 - Dec 2012
1 year 3 months

.NET Developer

LGBS

  • Development of MS Sharepoint 2010 WebParts in ASP .NET WebForms and jQuery
  • Development of MS Sharepoint 2010 CRM application for heavy industry
  • Development of CRM web application for heavy industry with C#, ASP .NET WebForms, JavaScript, jQuery
  • Development of CRM web application with C#, JavaScript, jQuery, AJAX, WebSockets
  • Development of ERP application for management of technical workers with C#, ASP .NET MVC, JavaScript, jQuery, jQuery-UI, Telerik MVC controls, EntityFramework
  • Development of CRM web application with C#, ASP .NET MVC, JavaScript, jQuery, AJAX, WCF services for billing services
Jun 2010 - Sep 2011
1 year 4 months

.NET Developer

VoipSwitch

  • Development of internet messenger for audio/video and chat communication with use of XMPP and SIP protocols
  • Implementing layout with .NET WinForms, mutlithreading
  • Implementing logic in unmanaged C++ and Python

Skills

  • .Net (C#, Asp .Net, Webforms, Mvc, Webapi, Entity Framework, Nhibernate, Winforms, Wpf, Xaml, Silverlight, Sharepoint 2010, Wcf, Owin, Autofac)

  • Web Technologies: Html, Css, Javascript (Ajax, Jquery, Jquery-ui, Bootstrap, Angular Js, Angular, React) Asp .Net, Owin, Php (Codeigniter), Python, Django

  • Nodejs, Express.js, Apollo Server, Graph Ql, Typescript, Javascript

  • Aws And Azure Cloud Environments

  • Ci/cd With Tfs, Azure Devops, Jenkins, Gitlab And Github

  • Docker And Kubernetes

  • C, C++, Java, Matlab, Delphi

  • Databases: T-sql, Pl/sql, Sql, Oracle, Ms Sql Server, Mysql, Mariadb, Postgres

  • Design Patterns, Uml

  • Unit Testing – Xunit, Nunit, Mstest, Moq

  • Xml, Xpath, Xquery, Xsd

  • Log4net, Serilog, Appinsights

  • Application Security, Basic Knowledge On Penetration Testing Including Usage Of Owasp Zap And Sqlmap

  • Scrum And Agile Methodology, Test Driven Development

  • 3d Graphics Programming – Directx, Opengl

  • Embedded Systems – Avr Microcontrollers In C, Assembly Languages And Bascom

  • Operating Systems: Ms Windows (Xp, 7, 8, Server 2008), Linux (Ubuntu)

  • Version Control Systems: Git, Svn, Tfs

  • Ide: Ms Visual Studio 2008, 2010, 2012, 2013, 2017, 2019

  • Basic Knowledge Of Electronics And Circuit Theory

  • Very Good Knowledge Of Ms Office And Openoffice

  • Driving License Cat. B.

Languages

Polish
Native
German
Advanced
English
Advanced
French
Elementary
Russian
Elementary

Education

Oct 2012 - Jun 2013

Silesian University of Technology

Masters Degree · Automatic Control, Electronics and Telecommunication, Computer Science · Gliwice, Poland

Oct 2008 - Jun 2012

Silesian University of Technology

Bachelors Degree · Automatic Control, Electronics and Telecommunication, Computer Science · Gliwice, Poland

Certifications & licenses

Microsoft Certified Professional

Microsoft Certified Professional Developer: SharePoint Developer 2010

Microsoft Certified Solutions Developer: SharePoint Applications

Microsoft Certified Solutions Developer: Web Applications

Microsoft Certified Technology Specialist: .NET Framework 4, Data Access (WCF and Entity Framework Technologies)

Microsoft Certified Technology Specialist: .NET Framework 4, Web Applications

Microsoft Certified Technology Specialist: .NET Framework 4, Windows Applications (WPF technology)

Microsoft Certified Technology Specialist: SharePoint 2010, Application Development

Microsoft Specialist: Programming In HTML5 With JavaScript And CSS3 Specialist

Need a freelancer? Find your match in seconds.
Try FRATCH GPT
More actions

Similar Freelancers

Discover other experts with similar qualifications and experience

Robert Raźniewski
Robert Raźniewski

Software Developer

View Profile
Piotr Ostrowski
Piotr Ostrowski

Senior Full Stack Developer

View Profile
Tito Morais
Tito Morais

Software Developer

View Profile
Alaeddine Benhamida lakhal
Alaeddine Benhamida lakhal

Senior Full-Stack .Net Developer (Freelance)

View Profile
Werner Mühlmann
Werner Mühlmann

IT Support

View Profile
Samir Brković
Samir Brković

Solution Architect / Senior Software Engineer

View Profile
Maxim Yafimau
Maxim Yafimau

DevOps

View Profile
Csaba Kéri
Csaba Kéri

ServiceNow Consultant

View Profile
František Navrátil
František Navrátil

Senior Java Developer

View Profile
Pawel Owerczuk
Pawel Owerczuk

AI AGENT Shopping assistant

View Profile
Marc Haid
Marc Haid

Senior Architect, Coach and Developer

View Profile
Thomas Hoefkens
Thomas Hoefkens

Senior MLOps, DevOps Engineer

View Profile
John Ampia-addison
John Ampia-addison

Senior DevOps Engineer

View Profile
Hüseyin Korkut
Hüseyin Korkut

Senior Full-Stack Engineer

View Profile
Guido Schedlbauer
Guido Schedlbauer

Senior Software Developer

View Profile
Christian Hacker
Christian Hacker

Qualifications Profile

View Profile
Paweł Szczepanik
Paweł Szczepanik

SAP Fiori/UI5/ABAP/React Developer

View Profile
Johannes Knörzer
Johannes Knörzer

Software Developer

View Profile
Arne Hendricks
Arne Hendricks

Embedded Fullstack Developer

View Profile
Manuel Merzinger
Manuel Merzinger

Software Developer | Agile Coach | Digitalization Expert

View Profile
Kai Schmudlach
Kai Schmudlach

Software Developer

View Profile
Hicham Mokhtari
Hicham Mokhtari

Freelance Software Developer

View Profile
Erik Csokas
Erik Csokas

Senior Developer

View Profile
Stefan Wimmer
Stefan Wimmer

Architect/Software Developer/Infrastructure

View Profile
Vamsi Krishna mylu
Vamsi Krishna mylu

Full Stack .NET Developer

View Profile
Marcel Meyer
Marcel Meyer

Cloud-Architect, Senior Solution Architect, Senior Software-Engineer

View Profile
Dirk Volkmann
Dirk Volkmann

Software Developer

View Profile
Rüdiger Schulz
Rüdiger Schulz

Full-Stack Software Engineer / Consultant for Digitalization

View Profile
Mathias Dürrenberger
Mathias Dürrenberger

Independent contractor

View Profile
Jens Meßinger
Jens Meßinger

Fullstack Developer / Team Lead

View Profile