Norbert K.

Full Stack Developer

555 dollar
7 years
Cluj-Napoca, ROMANIA

My experience


Jobba - PlatformJuly 2019 - Present

The client, a key player in the roofing industry, was having a really hard time selling their cloud-based business management platform designed exclusively for this industry due to the huge number of negative reviews caused by frequent crashes and the overall slowness of the platform.

  • Increased sales of the platform 10x over a period of 2 years, improved overall performance by 60%, and reduced customer complaints to 0 by leading a fast-paced team of 8 developers into re-designing the product to be highly intuitive by performing a multi-stage refactoring effort.
  • Increased clients monthly revenue by 100%, by cutting the time spent on non-development activities by 50%, by redesigning the whole development process, by creating a build and integration on system from the ground up, and created processes, guidelines, and services for both development and release activities

Skills: .NET, C#, WCF, MS SQL, EntityFramework, GCP Service, TeamCity, Angular, Kendo UI, HTML, CSS, REST API, Swagger


Jobba - Portal APIDecember 2020 - April 2021

The client, activating in the roofing industry, had a hard time closing deals with huge potential partners and implicitly losing significant revenue due to the lack of third-party integration possibilities of their cloud-based business management solution with different accounting and resource management services.

  • Secured 6 figure contracts with 2 new clients by leading the development effort and designing of an integration hub, allowing vast amounts of services to integrate with the platform, with very minimal development effort for the integration itself.
  • Increased the sale of the pla􀁿orm’s accounting module by 75% by integrating with a third-party accounting so􀁛ware used by 60%of the roofing industry by creating a custom-tailored integration solution based on the above-mentioned hub.

Skills: .NET, C#, WCF, WebSockets, MS SQL, EntityFramework


Practice Visual imagingJuly 2020 - January 2021

The client, activating in the medical industry, was struggling to sell the 3D imaging module of their dental and orthodontic practice management system, leaving huge amounts of potential revenue on the table, due to the fact that it could not handle large resolution models.

  • Secured a 4 figure monthly revenue boost by redesigning the imaging algorithm into multiple stages, achieving full resolution renders of all imported 3D models and releasing the 3D imaging module to all existing platform users.

Skills: .NET, C#, WCF


HarrisTeeter - eCommerce platformJune 2017 - July 2019

The client, activating in the eCommerce industry, had considerable annual losses, due to continuously decreasing active users on their platform, caused by the outdated looks and feature set that could no longer stand up to competitors.

  • Secured a 60% increase in daily active users, by leading a 5 person development team into designing and developing a custom-tailored eCommerce platform, unlocking a completely new user segment, given the platform's mobile device capabilities.
  • Achieved a monthly revenue increase of 100% from service fees, by designing and managing an integration plan, with a third-party delivery service provider, opening up a completely new revenue stream for the platform.

Skills: .NET, C#, MVC, MS SQL, TeamCity, OctopusDeploy, KnockoutJS, HTML, CSS, ASP.NET Razor, RabbitMQ, Grafana, F5 Load Balancer


MyWebGrocer platformMay 2015 - July 2019

The client, activating in the eCommerce industry, was losing its existing clients and was unable to attract new contracts with key retailers in the industry due to their ecommerce platform lacking the look and feature set of other competitors.

  • Secured contracts with 3 of the top 5 biggest retailers in the industry, and a 95% conversation rate of old clients, by designing and developing from scratch a state-of-the-art eCommerce platform, by creating a fully responsive user interface capable of serving all devices, backed by a cloudbased API driven backend.
  • Achieved a 98% overall up time of services for all retailers, by heavy involvement in 24/7 OnCall technical support activities.

Skills: .NET, C#, MVC, MS SQL, TeamCity, OctopusDeploy, KnockoutJS, HTML, CSS, ASP.NET Razor, RabbitMQ, Grafana, F5 Load Balancer

My stack

Analysis methods and tools

Scrum, Agile Methodology

Open Source solutions



.NET, Kendo UI, AngularJS, jQuery, WCF, Angular, Knockout.js, Entity Framework

Environment of Development

Octopus Deploy

Software testing

REST API Testing


Technical Support, Problem Solving, Knockout


Microsoft SQL Server

IT Infrastructure

Google Cloud Platform (GCP)






TortoiseSVN, TeamCity, REST API, Angular - Kendo, WebSockets, RabbitMQ

My education and trainings

Bachelor's degree - Computer Science - Babeș-Bolyai University of Cluj-Napoca2011 - 2015